bluuebunny/crossref_metadata_2025 huggingface dataset:
Bayesian Modeling of Joint Regressions for the Mean and Covariance Matrix
Authors: Cepeda Edilberto C. , Gamerman Dani
Published: August 2004

An important problem in agronomy is the study of longitudinal data on the growth curve of the weight of cattle through time, possibly taking into account the effect of other explanatory variables such as treatments and time. In this paper, a Bayesian approach for analysing longitudinal data is proposed. It takes into account regression structures on the mean and the variance‐covariance matrix of normal observations. The approach is based on the modeling strategy suggested by Pourahmadi (1999,Biometrika86, 667–690). After revising this methodology, we present the Bayesian approach used to fit the models, based on a generalization of the Metropolis‐Hastings algorithm of Cepeda and Gamerman (2000,Brazilian Journal of Probability and Statistics,14, 207–221). The approach is used to the study of growth and development of a group of deaf children. The paper is concluded with a few proposed extensions. (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Five Confidence Intervals of the Closed Population Size in the Capture‐recapture Problem under Inverse Sampling with Replacement
Authors: Lui Kung‐Jong
Published: August 2004

In the capture‐recapture problem for two independent samples, the traditional estimator, calculated as the product of the two sample sizes divided by the number of sampled subjects appearing commonly in both samples, is well known to be a biased estimator of the population size and have no finite variance under direct or binomial sampling. To alleviate these theoretical limitations, the inverse sampling, in which we continue sampling subjects in the second sample until we obtain a desired number of marked subjects who appeared in the first sample, has been proposed elsewhere. In this paper, we consider five interval estimators of the population size, including the most commonly‐used interval estimator using Wald's statistic, the interval estimator using the logarithmic transformation, the interval estimator derived from a quadratic equation developed here, the interval estimator using the χ2‐approximation, and the interval estimator based on the exact negative binomial distribution. To evaluate and compare the finite sample performance of these estimators, we employ Monte Carlo simulation to calculate the coverage probability and the standardized average length of the resulting confidence intervals in a variety of situations. To study the location of these interval estimators, we calculate the non‐coverage probability in the two tails of the confidence intervals. Finally, we briefly discuss the optimal sample size determination for a given precision to minimize the expected total cost. (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Parametric and Nonparametric Analyses of Repeated Ordinal Categorical Data
Authors: Singer Julio M. , Poleto Frederico Z. , Rosa Patrícia
Published: August 2004

We compare two models for the analysis of repeated ordinal categorical data: the classical parametric model for means of scores assigned to the categories of the response variable and a nonparametric model based on relative effects derived from the marginal distribution functions of the response. An example in the field of Dentistry is used to illustrate and to compare the models. We also consider a simulation study to evaluate the type‐I error rates and the power of tests under both models in a balanced design setup. The simulation results suggest that both approaches behave similarly for equally spaced scores but may perform differently otherwise. (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Conditional Rejection Probabilities of Student's t‐test and Design Adaptations
Authors: Posch Martin , Timmesfeld Nina , König Franz , Müller Hans‐Helge
Published: August 2004

For clinical trials with interim analyses conditional rejection probabilities play an important role when stochastic curtailment or design adaptations are performed. The conditional rejection probability gives the conditional probability to finally reject the null hypothesis given the interim data. It is computed either under the null or the alternative hypothesis. We investigate the properties of the conditional rejection probability for the one sided, one sample t‐test and show that it can be non monotone in the interim mean of the data and non monotone in the non‐centrality parameter for the alternative. We give several proposals how to implement design adaptations (that are based on the conditional rejection probability) for the t‐test and give a numerical example. Additionally, the conditional rejection probability given the interim t‐statistic is investigated. It does not depend on the unknown σ and can be used in stochastic curtailment procedures. (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Randomized clinical trial of the effects of immediate enteral nutrition on metabolic responses to major colorectal surgery in an enhanced recovery protocol
Authors: Soop M , Carlson G L , Hopkinson J , Clarke S , Thorell A , Nygren J , Ljungqvist O
Published: August 2004

Background

The effects of immediate postoperative enteral nutrition on postoperative nitrogen balance and insulin resistance were studied in patients subjected to an enhanced-recovery protocol.

Methods

Eighteen patients undergoing major colorectal surgery in an enhanced-recovery protocol were randomized to immediate postoperative enteral feeding for 4 days with either complete or hypocaloric nutrition. Nitrogen balance and changes in glucose kinetics, substrate utilization (indirect calorimetry) and insulin sensitivity (hyperinsulinaemic–euglycaemic clamp) were measured. Values are mean(s.e.m.).

Results

Mean postoperative urinary nitrogen losses were low (10·7(1·0) versus 10·5(0·7) g per day for complete versus hypocaloric nutrition) and insulin resistance was insignificant (−20(7) versus − 27(11) per cent), with no difference between groups. Complete enteral feeding was given without hyperglycaemia (blood glucose concentration 5·8(0·4) versus 5·0(0·4) mmol/l) and resulted in nitrogen balance (+0·1(0·8) versus − 12·6(0·6) g nitrogen per day; P < 0·001).

Conclusion

This enhanced-recovery protocol was associated with minimal postoperative insulin resistance and nitrogen losses after surgery. Immediate postoperative enteral nutrition was provided without hyperglycaemia and resulted in nitrogen balance.
The role of glutathione in cancer
Authors: Balendiran Ganesaratnam K. , Dabur Rajesh , Fraser Deborah
Published: August 2004

Glutathione is an abundant natural tripeptide found within almost all cells. Glutathione is highly reactive and is often found conjugated to other molecules via its sulfhydryl moiety. It instils several vital roles within a cell including antioxidation, maintenance of the redox state, modulation of the immune response and detoxification of xenobiotics. With respect to cancer, glutathione metabolism is able to play both protective and pathogenic roles. It is crucial in the removal and detoxification of carcinogens, and alterations in this pathway, can have a profound effect on cell survival. However, by conferring resistance to a number of chemotherapeutic drugs, elevated levels of glutathione in tumour cells are able to protect such cells in bone marrow, breast, colon, larynx and lung cancers. Here we present a number of studies investigating the role of glutathione in promoting cancer, impeding chemotherapy, and the use of glutathione modulation to enhance anti‐neoplastic therapy. Copyright © 2004 John Wiley & Sons, Ltd.
Protective effect of L‐carnitine on renal ischaemia–reperfusion injury in the rat
Authors: Görür Sadık , Bagˇdatogˇlu Özlen Tubay , Polat Gürbüz
Published: August 2004

This study was designed to investigate the effect of l‐carnitine in ischaemia and reperfusion of the rat kidney. Rats were randomly allocated into three groups. Group I (control group; n = 6) received no treatment. Group II (isotonic saline group; n = 6), received 2 ml of isotonic saline 15 min before the renal ischaemia, and group III (carnitine group; n = 6) received l‐carnitine hydrochloride (100 mg kg−1) intraperitoneally. At the end of the reperfusion period, rats were sacrificed. Tissue malondialdehyde level (MDA), myeloperoxidase (MPO) activity, and nitrite/nitrate (NO) level of renal tissue were measured to evaluate the lipid peroxidation, neutrophil function, and nitric oxide metabolism, respectively. The tissue levels of MDA, MPO and NO were lower in group III (71.8 ± 8.4, 172.1 ± 27.4 U g−1 tissue, 76.3 ± 29.7 μmol l−1 respectively) than levels in groups I (103.4 ± 13.4 nmol g−1, 325.9 ± 20.2 U g−1 tissue, 144.5 ± 39.2 μmol l−1, respectively) and II (103.5 ± 11.4 nmol g−1, 317.1 ± 41.5 U g−1 tissue, 148.9 ± 23.9 μmol l−1, respectively). It is shown that carnitine protects kidney tissue against ischaemia–reperfusion injury. Copyright © 2004 John Wiley & Sons, Ltd.
Reversible Collapse of Brushlike Macromolecules in Ethanol and Water Vapours as Revealed by Real‐Time Scanning Force Microscopy
Authors: Gallyamov Marat O. , Tartsch Bernd , Khokhlov Alexei R. , Sheiko Sergei S. , Börner Hans G. , Matyjaszewski Krzysztof , Möller Martin
Published: August 2004

Environment‐controlled scanning force microscopy allowed us to study adsorption and desorption of single poly(methacrylate)‐graft‐poly(n‐butyl acrylate) brush molecules on mica in real time. The molecules transform reversibly from a two‐dimensional, extended wormlike state to a compact globular state. The dynamics of the conformational transition was sufficiently slow in order to allow its observation by scanning force microscope in real time. The reversible transformation is effected by coadsorption of water or ethanol, the latter introduces the collapse. Adsorbing ethanol and water from the vapour atmosphere results in a change of the surface properties of mica, either favouring adsorption or desorption of the graft polymer. When the extended, tightly adsorbed poly(n‐butyl acrylate) brush molecules are exposed to ethanol vapour, the macromolecules swell and contract to form compact globules. Exchanging the ethanol vapour to a humid atmosphere caused the molecules to extend again to a wormlike two‐dimensional conformation. Coexistence of collapsed and extended strands within the same molecule indicates a single‐molecule first‐order transition in agreement with observations on Langmuir films previously reported.
Cooperative Near‐IR to Visible Photon Upconversion in Yb3+‐Doped MnCl2 and MnBr2: Comparison with a Series of Yb3+‐Doped Mn2+ Halides
Authors: Gerner Pascal , Reinhard Christine , Güdel Hans U.
Published: August 2004

Yb3+‐doped MnCl2 and MnBr2 crystals exhibit strong red upconversion luminescence under near‐infrared excitation around 10 000 cm−1 at temperatures below 100 K. The broad red luminescence band is centred around 15 200 cm−1 for both compounds and identified as the Mn2+ 4T1g→6A1g transition. Excitation with 10 ns pulses indicates that the upconversion process consists of a sequence of ground‐state and excited‐state absorption steps. The experimental VIS/NIR photon ratio at 12 K for an excitation power of 191 mW focused on the sample with a 53 mm lens is 4.1 % for MnCl2:Yb3+ and 1.2 % for MnBr2:Yb3+. An upconversion mechanism based on exchange coupled Yb3+–Mn2+ ions is proposed. Similar upconversion properties have been reported for RbMnCl3:Yb3+, CsMnCl3:Yb3+, CsMnBr3:Yb3+, RbMnBr3:Yb3+, Rb2MnCl4:Yb3+. The efficiency of the upconversion process in these compounds is strongly dependent on the connectivity between the Yb3+ and Mn2+ ions. The VIS/NIR photon ratio decreases by three orders of magnitude along the series of corner‐sharing Yb3+‐Cl−‐Mn2+, edge‐sharing Yb3+‐(Cl−)2‐Mn2+ to face‐sharing Yb3+‐(Br−)3‐Mn2+ bridging geometry. This trend is discussed in terms of the dependence of the relevant super‐exchange pathways on the Yb3+–Mn2+ bridging geometry.
Expanded Utility of the Native Chemical Ligation Reaction
Authors: Yeo Dawn S. Y. , Srinivasan Rajavel , Chen Grace Y. J. , Yao Shao Q.
Published: August 2004

The post‐genomic era heralds a multitude of challenges for chemists and biologists alike, with the study of protein functions at the heart of much research. The elucidation of protein structure, localization, stability, post‐translational modifications, and protein interactions will steadily unveil the role of each protein and its associated biological function in the cell. The push to develop new technologies has necessitated the integration of various disciplines in science. Consequently, the role of chemistry has never been so profound in the study of biological processes. By combining the strengths of recombinant DNA technology, protein splicing, organic chemistry, and the chemoselective chemistry of native chemical ligation, various strategies have been successfully developed and applied to chemoselectively label proteins, both in vitro and in live cells, with biotin, fluorescent, and other small molecule probes. The site‐specific incorporation of molecular entities with unique chemical functionalities in proteins has many potential applications in chemical and biological studies of proteins. In this article, we highlight recent progress of these strategies in several areas related to proteomics and chemical biology, namely, in vitro and in vivo protein biotinylation, protein microarray technologies for large‐scale protein analysis, and live‐cell bioimaging.
A Novel Self‐Complementary Three‐Dimensional Inorganic Network Organized by H‐Bond Dimers of Inorganic Chains — Synthesis and Crystal Structure of (C6H16N2)[Zn(HPO4)2].
Authors: Zhang Xian‐Ming , Bai Chan‐Juan , Zhang Yan‐Li , Wu Hai‐Shun
Published: August 2004

For Abstract see ChemInform Abstract in Full Text.
K6Cd4Sn3Se13: A Polar Open‐Framework Compound Based on the Partially Destroyed Supertetrahedral [Cd4Sn4Se17]10‐ Cluster.
Authors: Ding Nan , Chung Duck‐Young , Kanatzidis Mercouri G.
Published: August 2004

For Abstract see ChemInform Abstract in Full Text.
Synthesis, Characterization and Crystal Structures of Binuclear Cluster Compounds [Me4N]2[TS4(AgCN)] (T: Mo, W).
Authors: Rahman A. B. M. Shamsur , Boller H. , Klepp K. O.
Published: August 2004

For Abstract see ChemInform Abstract in Full Text.
A Novel Isopolytungstate Functionalized by Ruthenium: [HW9O33RuII2(dmso)6] 7‐.
Authors: Bi Lihua , Hussain Firasat , Kortz Ulrich , Sadakane Masahiro , Dickman Michael H.
Published: August 2004

For Abstract see ChemInform Abstract in Full Text.
Chiral Broensted Acid‐Catalyzed Direct Mannich Reactions via Electrophilic Activation.
Authors: Uraguchi Daisuke , Terada Masahiro
Published: August 2004

For Abstract see ChemInform Abstract in Full Text.
An Intramolecular Organocatalytic Cyclopropanation Reaction.
Authors: Bremeyer Nadine , Smith Stephen C. , Ley Steven V. , Gaunt Matthew J.
Published: August 2004

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Synthesis of Urethanes by a Modified Curtius Reaction with Alcohols.
Authors: Bianco Armandodoriano , Bonadies Francesco , Napolitano Raffaella , Ortaggi Giancarlo
Published: August 2004

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Oxidation of Allylic Alcohols, Amines, and Sulfides Mediated by Assembled Triphase Catalyst of Phosphotungstate and Non‐cross‐linked Amphiphilic Copolymer.
Authors: Yamada Yoichi M. A. , Tabata Hidetsugu , Ichinohe Masato , Takahashi Hideyo , Ikegami Shiro
Published: August 2004

For Abstract see ChemInform Abstract in Full Text.
Stereoselective Synthesis of Amides Possessing a Vinylsilicon Functionality via a Ruthenium‐Catalyzed Silylative Coupling Reaction.
Authors: Marciniec Bogdan , Chadyniak Dariusz , Krompiec Stanislaw
Published: August 2004

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Structure and Reactivity of “Unusual” N‐Heterocyclic Carbene (NHC) Palladium Complexes Synthesized from Imidazolium Salts.
Authors: Lebel Helene , Janes Marc K. , Charette Andre B. , Nolan Steven P.
Published: August 2004

For Abstract see ChemInform Abstract in Full Text.
Baylis—Hillman Adducts in Rhodium‐Catalyzed 1,4‐Additions: Unusual Reactivity.
Authors: Navarre Laure , Darses Sylvain , Genet Jean‐Pierre
Published: August 2004

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Palladium‐Catalyzed Coupling Reaction of Allenic Alcohols with Aryl‐ and Alkenylboronic Acids.
Authors: Yoshida Masahiro , Gotou Takahiro , Ihara Masataka
Published: August 2004

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The Hydrogenolysis of N‐Benzyl Groups with Magnesium and Ammonium Formate.
Authors: Babu S. N. Narendra , Srinivasa G. R. , Santhosh D. C. , Gowda D. Channe
Published: August 2004

For Abstract see ChemInform Abstract in Full Text.
Palladium(II) Chloride Catalyzed Selective Acetylation of Alcohols with Vinyl Acetate.
Authors: Bosco J. W. J. , Saikia Anil K.
Published: August 2004

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N‐Phthaloyl‐2‐amino Alcohols. Synthesis and Antileukemic Activity.
Authors: Osintsev A. V. , Levit G. L. , Krasnov V. P. , Mails D. Kh. , Solodnikov S. Yu. , Gun E. A.
Published: August 2004

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A Facile Stereoselective Synthesis of Functionalized Cyclobutenes and Electron‐Deficient 1,3‐Dienes.
Authors: Asghari Sakineh , Zaty Mehdi , Bijanzadeh Hamid Reza
Published: August 2004

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Diastereoselective Allylations of Allyl—Propargyl Hybrid Cations: Synthesis of Conjugated 1,5‐Dien‐7‐yne Frameworks Bearing C(4)‐Stereogenic Centers.
Authors: Ishikawa Teruhiko , Aikawa Toshiaki , Mori Yumiko , Saito Seiki
Published: August 2004

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Vicarious Nucleophilic Substitution of (Chloroalkyl)heterocycles with Nitroarenes.
Authors: Florio Saverio , Lorusso Patrizia , Luisi Renzo , Granito Catia , Ronzini Ludovico , Troisi Luigino
Published: August 2004

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Direct Nucleophilic Addition versus a Single‐Electron Transfer Pathway of σH Adduct Formation in Vicarious Nucleophilic Substitution of Hydrogen.
Authors: Makosza Mieczyslaw , Kwast Andrzej
Published: August 2004

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Convenient Synthesis of α,β‐Unsaturated Sulfones via a Mizoroki—Heck Reaction of Arylboronic Acids with Phenyl Vinyl Sulfones.
Authors: Kabalka George W. , Guchhait Sankar K.
Published: August 2004

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Heterogeneous Suzuki Reactions Catalyzed by Pd(0)—Y Zeolite.
Authors: Artok Levent , Bulut Hatice
Published: August 2004

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Synthesis and Cytotoxicity of a Novel 1‐Alkylaminomethyl‐2,4‐diaryl‐butadiene‐1,3 Fragment Integrated within Cyclohex(pent)enes.
Authors: Zhao Kejun , Wang Yongfeng , Zhao Linxiang , Ji Zhizhong , Li Dan , Tisdale Michael J. , Schwalbe Carl H.
Published: August 2004

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A Novel Fluoride Sensor Based on Fluorescence Enhancement.
Authors: Xu Guoxiang , Tarr Matthew A.
Published: August 2004

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Cinchona Alkaloid Lewis Acid Catalyst Systems for Enantioselective Ketene—Aldehyde Cycloadditions.
Authors: Zhu Cheng , Shen Xiaoqiang , Nelson Scott G.
Published: August 2004

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Copper(I)‐Catalyzed Asymmetric Alkene Aziridination Mediated by PhI(OAc)2: A Facile One‐Pot Procedure.
Authors: Kwong Hoi‐Lun , Liu Di , Chan Ka‐Yee , Lee Chi‐Sing , Huang Ka‐Hung , Che Chi‐Ming
Published: August 2004

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Styrylheterocycles as a Novel Class Inhibitor of Cyclooxygenase‐2‐Mediated Prostaglandin E2 Production.
Authors: Lee Sang Kook , Park Eun‐Jung , Lee Eunjung , Min Hye‐Young , Kim Eun‐Young , Lee Taeho , Kim Sanghee
Published: August 2004

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Reactivity and Enantioselectivity in the Reactions of Scalemic Stereogenic α‐(N‐Carbamoyl)alkylcuprates.
Authors: Dieter R. Karl , Oba Gabriel , Chandupatla Kishan R. , Topping Chris M. , Lu Kai , Watson Rhett T.
Published: August 2004

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Organic Reactions in Aqueous Media: InF3 Catalyzed Synthesis of Bis(indolyl)methanes in Water under Mild Conditions.
Authors: Bandgar B. P. , Shaikh K. A.
Published: August 2004

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Formal [4 + 2] Cycloaddition Reactions of N‐Sulfonyl‐2,2′‐biindoles: Synthesis of Indolo[2,3‐a]carbazoles and Indigo Azines.
Authors: Kuethe Jeffrey T. , Davies Ian W.
Published: August 2004

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Synthesis and in vitro Antileukemic Activity of New 4‐Triazenopyrazole Derivatives.
Authors: Daidone Giuseppe , Maggio Benedetta , Raffa Demetrio , Plescia Salvatore , Schillaci Domenico , Raimondi Maria Valeria
Published: August 2004

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A New Dirhodium(II) Carboxamidate Complex as a Chiral Lewis Acid Catalyst for Enantioselective Hetero‐Diels—Alder Reactions.
Authors: Anada Masahiro , Washio Takuya , Shimada Naoyuki , Kitagaki Shinji , Nakajima Makoto , Shiro Motoo , Hashimoto Shunichi
Published: August 2004

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New and Improved Synthesis of (.+‐.)‐4‐Bromo‐7,8‐dimethoxy‐isochroman‐3‐one, a Key Intermediate for the Elaboration of (.+‐.)‐cis‐Alpinine and (.+‐.)‐cis‐Alpinigenine.
Authors: Bianchi Dario A. , Kaufman Teodoro S.
Published: August 2004

For Abstract see ChemInform Abstract in Full Text.
Synthesis of Sulfur Heterocycles by Thio‐Claisen Rearrangement.
Authors: Majumdar Krishna C. , Bandyopadhyay Anwesha
Published: August 2004

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Tribenzoyldihydropyridinols from Dibenzoylacetylene and Imines.
Authors: Gomaa Mohsen Abdel‐Motaal
Published: August 2004

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Synthesis of 3‐Substituted 4‐Piperidinones via a One‐Pot Tandem Oxidation—Cyclization—Oxidation Process: Stereodivergent Reduction to 3,4‐Disubstituted Piperidines.
Authors: Bahia Perdip S. , Snaith John S.
Published: August 2004

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Utilization of Aromatic Denitrocyclization Reaction for the Synthesis of 3‐Unsubstituted 1,4‐Dihydroquinolin‐4‐one Derivatives.
Authors: Radl Stanislav , Obadalova Iva
Published: August 2004

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One‐Pot Synthesis of Quinolin‐2‐(1H)‐ones via Tandem Ugi—Knoevenagel Condensations.
Authors: Marcaccini Stefano , Pepino Roberto , Pozo M. Cruz , Basurto Sara , Garcia‐Valverde Maria , Torroba Tomas
Published: August 2004

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Methylation of Acridin‐9‐ylthioureas. Structure, Fluorescence and Biological Properties of Products.
Authors: Bernat Juraj , Balentova Eva , Kristian Pavol , Imrich Jan , Sedlak Erik , Danihel Ivan , Boehm Stanislav , Pronayova Nad'a , Pihlaja Kalevi , Klika Karen D.
Published: August 2004

For Abstract see ChemInform Abstract in Full Text.
Highly Diastereoselective Inverse Electron Demand (IED) Diels—Alder Reaction Mediated by Chiral Salen—AlCl Complex: The First, Target‐Oriented Synthesis of Pyranoquinolines as Potential Antibacterial Agents.
Authors: Magesh Chinnian J. , Makesh Sarasu V. , Perumal Paramasivan T.
Published: August 2004

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New Benzo[5,6]pyrrolizino[1,2‐b]quinolines as Cytotoxic Agents.
Authors: Perzyna Aurore , Klupsch Frederique , Houssin Raymond , Pommery Nicole , Lemoine Amelie , Henichart Jean‐Pierre
Published: August 2004

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Synthesis and Biological Evaluation of Benzamides and Benzamidines: Structural Requirement of a Pyrimidine Ring for Inhibition of EGFR Tyrosine Kinase.
Authors: Asano Toru , Yoshikawa Tomohiro , Nakamura Hiroyuki , Uehara Yoshimasa , Yamamoto Yoshinori
Published: August 2004

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Novel GSK‐3 Inhibitor with Improved Cellular Activity.
Authors: Peat Andrew J. , Garrido Dulce , Boucheron Joyce A. , Schweiker Stephanie L. , Dickerson Scott H. , Wilson Jayme R. , Wang Tony Y. , Thomson Stephen A.
Published: August 2004

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3‐Hydroxy‐quinazoline‐2,4‐dione as a Useful Scaffold to Obtain Selective Gly/NMDA and AMPA Receptor Antagonists.
Authors: Colotta Vittoria , Catarzi Daniela , Varano Flavia , Calabri Francesca Romana , Filacchioni Guido , Costagli Chiara , Galli Alessandro
Published: August 2004

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A Versatile Synthesis of Fluorinated Uracils in Solution and on Solid‐Phase.
Authors: Fustero Santos , Piera Julio , Sanz‐Cervera Juan F. , Catalan Silvia , Ramirez de Arellano Carmen
Published: August 2004

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Facile Synthesis of 1‐Substituted 4,5‐Diaminopyrazoles and Its Application Toward the Synthesis of Pyrazolo[3,4‐b]pyrazines.
Authors: Chien Tun‐Cheng , Smaldone Ronald A. , Townsend Leroy B.
Published: August 2004

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Synthesis and Evaluation of 1‐Arylsulfonyl‐3‐piperazinone Derivatives as Factor Xa Inhibitors. Part 4. A Series of New Derivatives Containing a Spiro[5H‐oxazolo[3,2‐a]pyrazine‐2(3H),4′‐piperidin]‐5‐one Skeleton.
Authors: Nishida Hidemitsu , et al. et al.
Published: August 2004

For Abstract see ChemInform Abstract in Full Text.
1,2,4‐Triazine N‐Oxide Derivatives: Studies as Potential Hypoxic Cytotoxins. Part 2.
Authors: Cerecetto Hugo , Gonzalez Mercedes , Onetto Silvia , Saenz Patricia , Ezpeleta Olga , Lopez de Cerain Adela , Monge Antonio
Published: August 2004

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6‐Amino‐2,6‐dideoxy‐ or ‐2,3,6‐trideoxyhexono‐1,6‐lactams: Synthesis and Conformation.
Authors: Hamernikova Michaela , Havlicek Jaroslav , Blahova Romana , Pospisilova Helena , Votavova Hana , Kefurt Karel
Published: August 2004

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Enantioselective Synthesis of the Originally Proposed Usneoidone Structure: Evidence for a Structural Revision.
Authors: Danet Michele , Normand‐Bayle Marie , Mahuteau Jacqueline , d'Angelo Jean , Morgant Georges , Desmaele Didier
Published: August 2004

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Wittig Reaction on 5,8‐Dimethyl‐2‐tetralone. A Total Formal Synthesis of Emmotin‐G Methyl Ether.
Authors: Banerjee Ajoy K. , Vera William J.
Published: August 2004

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A New Approach to (.+‐.)‐Heritonin. The Preparation of β‐Tetralones from Allylsilanes and Acid Chlorides.
Authors: Silveira Claudio C. , Machado Alessandra , Braga Antonio L. , Lenardao Eder Joao
Published: August 2004

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Poly(ethylene glycol) Supported Chiral Quaternary Ammonium Salts as Phase‐Transfer Catalysts for Catalytic Enantioselective Synthesis of α‐Amino Acids.
Authors: Kim Dae Young , Huh Sun Chul
Published: August 2004

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Double Asymmetric Induction as a Mechanistic Probe: Conjugate Addition for the Asymmetric Synthesis of a Pseudotripeptide.
Authors: Davies Stephen G. , Hermann Gesine J. , Sweet Miles J. , Smith Andrew D.
Published: August 2004

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1,3‐Dipolar Cycloaddition of exo‐Methylenesugars with Nitrone: Approach to New Amino‐C‐ketosyl Disaccharides.
Authors: Li Xiaoliu , Takahashi Hideyo , Ohtake Hiro , Ikegami Shiro
Published: August 2004

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Preparation of Methyl 2‐Methoxycarbonylmethyl‐6‐oxo‐1,6‐dihydropyridine‐3‐carboxylate.
Authors: Feng Song , He Xuchang , Yu Gengli , Xia Yu , Bai Donglu
Published: August 2004

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A Concise Asymmetric Route to the Bridged Bicyclic Tropane Alkaloid Ferruginine Using Enyne Ring‐Closing Metathesis.
Authors: Aggarwal Varinder K. , Astle Christopher J. , Rogers‐Evans Mark
Published: August 2004

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Cytotoxicity of Phenylpropanoid Esters from the Stems of Hibiscus taiwanensis.
Authors: Wu Pei‐Lin , Chuang Ta‐Hsien , He Cai‐Xia , Wu Tian‐Shung
Published: August 2004

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CE‐108, a New Macrolide Tetraene Antibiotic.
Authors: Perez‐Zuniga Francisco J. , Seco Elena M. , Cuesta T. , Degenhardt Falko , Rohr Juergen , Vallin Carlos , Iznaga Yanelis , Perez Marta E. , Gonzalez Leonora , Malpartida Francisco
Published: August 2004

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The Synthesis of (.+‐.)‐Monomorine I Starting with the Palladium‐Catalyzed Carbonylative 1,4‐Acylation of an Organozinc Chloride.
Authors: Yuguchi Motoki , Tokuda Masao , Orito Kazuhiko
Published: August 2004

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Efficient Synthesis of the Styryllactones, (+)‐Goniothalamin, (+)‐7‐epi‐Goniodiol and (+)‐9‐Deoxygoniopypyrone.
Authors: Liu Zhi‐Yu , Ji Jian‐Xin , Li Bo‐Gang
Published: August 2004

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Nanowires as Building Blocks for Nanoscale Science and Technology
Authors: Cui Yi , Duan Xiangfeng , Huang Yu , Lieber Charles M.
Published: August 2004

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Crystal Structures of Pb8O5(AsO4)2 and Pb5O4(CrO4), and Review of PbO‐Related Structural Units in Inorganic Compounds
Authors: Krivovichev S. V. , Armbruster T. , Depmeier W.
Published: August 2004

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Mechanochemical Synthesis of Ceramic Powders with Perovskite Structure
Authors: Stojanovic Biljana D.
Published: August 2004

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Direct Synthesis of Hetero Bimetallic Complexes
Authors: Skopenko V. V. , Kokozei V. N. , Vasil'eva O. Yu. , Petrusenko S. R.
Published: August 2004

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B‐Alkylcatecholborane‐Mediated Radical Reactions
Authors: Schaffner Arnaud‐Pierre , Renaud Philippe
Published: August 2004

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Hypercoordinate Carbon in Polyhedral Organic Structures
Authors: Minkin Vladimir I. , Minyaev Ruslan M.
Published: August 2004

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Towards Advanced Chemical Microsensors
Authors: Wroblewski W. , Dybko A. , Malinowska E. , Brzozka Z.
Published: August 2004

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Synthetic Studies on Biologically Active Alkaloids
Authors: Toyooka Naoki , Nemoto Hideo
Published: August 2004

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Thiopyranones and Thiopyranthiones
Authors: Faulkner S. , Whitehead R. C. , Aarons R. J.
Published: August 2004

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Thiopyrylium Salts
Authors: Rudorf W.‐D.
Published: August 2004

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Reactions in Ionic Liquids Based on Choline Chloride
Authors: Abbott Andrew , Davies David , Jenkins Paul
Published: August 2004

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Dendritic Metalloporphyrins as Catalysts for Organic Transformations
Authors: Che Chi‐Ming , Huang Jie‐Sheng , Zhang Jun‐Long
Published: August 2004

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Microwave‐Assisted Reactions on Graphite
Authors: Laporterie Andre , Marquie Julien , Dubac Jacques
Published: August 2004

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Nanomaterials Based on Phosphorus Dendrimers
Authors: Caminade Anne‐Marie , Majoral Jean‐Piere
Published: August 2004

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Natural Products Active Against African Trypanosomes: A Step Towards New Drugs
Authors: Hoet Sara , Opperdoes Frederik , Brun Reto , Quetin‐Leclercq Joelle
Published: August 2004

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Effects of Thiophene Ring in Nonlinear Optical Chromophores
Authors: Santos Javier
Published: August 2004

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The Mechanism of Thermal Decomposition of Secondary Nitramines
Authors: Shu Yu. , Korsounskii B. L. , Nazin G. M.
Published: August 2004

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Conformational Properties of Hybrid Peptides Containing α‐ and ω‐Amino Acids
Authors: Roy R. S. , Balaram P.
Published: August 2004

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Electronic Structures and Spectroscopic Properties of 6π‐Electron Ring Molecules and Ions E2N2 and E2+4 (E: S, Se, Te)
Authors: Tuononen Heikki M. , Suontamo Reijo , Valkonen Jussi , Laitinen Risto S.
Published: August 2004

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Synthesis and Structure of Alkaline Earth Silicon Nitrides: BaSiN2, SrSiN2, and CaSiN2.
Authors: Gal Zoltan A. , Mallinson Phillip M. , Orchard Heston J. , Clarke Simon J.
Published: August 2004

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Cs2Mo15S19: A Novel Ternary Reduced Molybdenum Sulfide Containing Mo6 and Mo9 Clusters.
Authors: Picard S. , Salloum D. , Gougeon P. , Potel M
Published: August 2004

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Cubic Mesoporous Frameworks with a Mixed Semiconductor Nanocrystalline Wall Structure and Enhanced Sensitivity to Visible Light.
Authors: Bartl Michael H. , Puls Stefan P. , Tang Jing , Lichtenegger Helga C. , Stucky Galen D.
Published: August 2004

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An Intermediate‐Temperature Ammonia Fuel Cell Using Gd‐Doped Barium Cerate Electrolyte.
Authors: McFarlan A. , Pelletier L. , Maffei N.
Published: August 2004

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Electrochemical Behavior of ZrB2 in Aqueous Solutions.
Authors: Monticelli Cecilia , Bellosi Alida , Dal Colle Maurizio
Published: August 2004

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Fe—Ce—ZSM‐5 a New Catalyst of Outstanding Properties in the Selective Catalytic Reduction of NO with NH3.
Authors: Carja G. , Delahay G. , Signorile C. , Coq B.
Published: August 2004

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Selective Production of Hydrogen from Partial Oxidation of Methanol over Silver Catalysts at Low Temperatures.
Authors: Mo Liuye , Zheng Xiaoming , Yeh Chuin‐Tih
Published: August 2004

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[C6H5NH(CH3)2] 2Te2I10: Secondary I×××I Bonds Build up a 3D Network.
Authors: Ryan Jacqueline M. , Xu Zhengtao
Published: August 2004

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Gas Phase, Solution, and Solid State Alkali Ion Binding by the [NbE8]3‐ (E: As, Sb) Complexes: Synthesis, Structure, and Spectroscopy.
Authors: Kesanli Banu , Fettinger James , Scott Brian , Eichhorn Bryan
Published: August 2004

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Structural Control on the Nanomolecular Scale: Self‐Assembly of the Polyoxotungstate Wheel [{β‐Ti2SiW10O39}4] 24‐.
Authors: Hussain Firasat , Bassil Bassem S. , Bi Li‐Hua , Reicke Markus , Kortz Ulrich
Published: August 2004

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Catalytic Performance of Tantalum—η2‐Alkyne Complexes [TaCl3(R1CCR2)L2] for Alkyne Cyclotrimerization.
Authors: Oshiki Toshiyuki , Nomoto Hiroshi , Tanaka Kouji , Takai Kazuhiko
Published: August 2004

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Catalytic Asymmetric Acylation of (Silyloxy)nitrile Anions.
Authors: Nicewicz David A. , Yates Christopher M. , Johnson Jeffrey S.
Published: August 2004

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Application of Polydentate Chiral Amines within Magnesium‐Mediated Asymmetric Deprotonation Reactions.
Authors: Bassindale Martin J. , Crawford James J. , Henderson Kenneth W. , Kerr William J.
Published: August 2004

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Catechol‐Based Phosphoramidites: A New Class of Chiral Ligands for Rhodium‐Catalyzed Asymmetric Hydrogenations.
Authors: Hoen Rob , van den Berg Michel , Bernsmann Heiko , Minnaard Adriaan J. , de Vries Johannes G. , Feringa Ben L.
Published: August 2004

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Enantioselective Spiro Ene‐Carbocyclization of 1,6‐Enynes Catalyzed by Tropos Rhodium(I) Complex with Skewphos Ligand.
Authors: Mikami Koichi , Yusa Yukinori , Hatano Manabu , Wakabayashi Kazuki , Aikawa Kohsuke
Published: August 2004

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Asymmetric Hydrogenation of Ketones Catalyzed by RuII‐bicp Complexes.
Authors: Genov Daniel G. , Ager David J.
Published: August 2004

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Enantioselective Radical Cyclization of α,β‐Unsaturated Sulfonyl Compounds.
Authors: Sugimoto Hideki , Kobayashi Makoto , Nakamura Shuichi , Toru Takeshi
Published: August 2004

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Investigation on the Condensation of α and β Ketoaldehydes with Hydroxyaromatic Compounds.
Authors: Talinli Naciye , Karliga Bekir
Published: August 2004

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Steric Effects on the Formation of Imide 1,4‐Diphenyl‐1,4‐epoxy‐1,2,3,4‐tetrahydronaphthalene‐2,3‐dicarboxylic Anhydride.
Authors: Badri Rashid , Heidarizadeh Fariba
Published: August 2004

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Dinuclear Ruthenium(I) Triazenide Complexes as Catalysts for Carbenoid Cyclopropanation Reactions.
Authors: Leger Claus‐Dieter , Maas Gerhard
Published: August 2004

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Formation and Reaction of Substituted Diazocyclopropanes and Cyclopropyldiazonium Ions.
Authors: Klimenko I. P. , Tomilov Yu. V. , Nefedov O. M.
Published: August 2004

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Synthesis and Catalytic Activity of a Fluorous‐Tagged TEMPO Radical.
Authors: Pozzi Gianluca , Cavazzini Marco , Holczknecht Orsolya , Quici Silvio , Shepperson Ian
Published: August 2004

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Dod‐S‐Me and Methyl 6‐Morpholinohexyl Sulfide (MMS) as New Odorless Borane Carriers.
Authors: Patra Pranab K. , Nishide Kiyoharu , Fuji Kaoru , Node Manabu
Published: August 2004

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Zn‐Alkynylide Additions to Acyl Iminiums.
Authors: Fischer Christian , Carreira Erick M.
Published: August 2004

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Copper‐Catalyzed Electrophilic Amination of Diorganozinc Reagents.
Authors: Berman Ashley M. , Johnson Jeffrey S.
Published: August 2004

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A Novel Imido‐Transfer Reaction of Aldehydes with Ph3P=NTs Using RuCl2(PPh3)3 as Catalyst.
Authors: Jain Suman L. , Sharma Vishal B. , Sain Bir
Published: August 2004

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Indium as a Radical Inhibitor in Aqueous Media: Intermolecular Alkyl Radical Addition to C=N and C=C Bond.
Authors: Miyabe Hideto , Ueda Masafumi , Nishimura Azusa , Naito Takeaki
Published: August 2004

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Supported Choline Hydroxide (Ionic Liquid) as Heterogeneous Catalyst for Aldol Condensation Reactions.
Authors: Abello Sonia , Medina Francisco , Rodriguez Xavier , Cesteros Yolanda , Salagre Pilar , Sueiras Jesus E. , Tichit Didier , Coq Bernard
Published: August 2004

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3,6‐Dibenzoxyl‐1,2‐pyridazine: A New Versatile Benzoyl Transferring Agent for NH2, ‐OH and ‐SH Benzoylations.
Authors: Mashraqui Sabir Hussain , Shivaji Jadhav Latika
Published: August 2004

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Selective Removal of the N‐(tert‐Butoxycarbonyl) Protecting Group Using H‐β Zeolite.
Authors: Tillu Vasudha H. , Wakharkar Radhika D. , Pandey Rajesh K. , Kumar Pradeep
Published: August 2004

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Cerium(III) Triflate versus Cerium(III) Chloride: Anion Dependence of Lewis Acid Behavior in the Deprotection of PMB Ethers.
Authors: Bartoli Giuseppe , Dalpozzo Renato , De Nino Antonio , Maiuolo Loredana , Nardi Monica , Procopio Antonio , Tagarelli Antonio
Published: August 2004

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A Simple and Useful Synthetic Protocol for Selective Deprotection of tert‐Butyldimethylsilyl (TBS) Ethers.
Authors: Khan Abu T. , Ghosh Subrata , Choudhury Lokman H.
Published: August 2004

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Synthesis of Tertiary Propargylamines by Sequential Reactions of in situ Generated Thioiminium Salts with Organolithium and ‐magnesium Reagents.
Authors: Murai Toshiaki , Mutoh Yuichiro , Ohta Yukiyasu , Murakami Masahiro
Published: August 2004

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Reaction of Unstabilized Iodonium Ylides with Organoboranes.
Authors: Ochiai Masahito , Tuchimoto Yoshimi , Higashiura Nobuyuki
Published: August 2004

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Use of Hydrogen Peroxide as Oxidizing Agent in the Synthesis of 1,8‐Octanedioic (Suberic) Acid.
Authors: Antonova T. N. , Mashina S. A. , Kunitskii A. A. , Artem'eva N. V.
Published: August 2004

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Synthesis of cis‐2‐Fluorocyclopropylamine by Stereoselective Cyclopropanation under Phase‐Transfer Conditions.
Authors: Matsuo Jun‐ichi , Tani Yu‐ichirou , Hayakawa Yu‐ichirou
Published: August 2004

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Stereoselective Synthesis of Highly Functionalized Trifluoromethylated Cyclobutenes.
Authors: Mosslemin Mohammad H. , Yavari Issa , Anary‐Abbasinejad Mohammad , Nateghi Mohammad R.
Published: August 2004

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Phosphonate Aldehyde Annulation — A One‐Pot Synthesis of Hydroxycycloalkenoic Esters — Application to Analogues of Glycinoeclepin A.
Authors: Kraus George A. , Choudhury Prabir K.
Published: August 2004

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Sonochemical Asymmetric Hydrogenation of Isophorone on Proline Modified Pd/Al2O3 Catalysts.
Authors: Mhadgut Shilpa C. , Bucsi Imre , Toeroek Marianna , Toeroek Bela
Published: August 2004

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A Novel Route to Polyfluorinated Alka‐2E,4E‐dienes.
Authors: Shen Yanchang , Wang Guoping
Published: August 2004

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GaCl3‐Catalyzed ortho‐Ethynylation Reaction of N‐Benzylanilines.
Authors: Amemiya Ryo , Fujii Akiko , Yamaguchi Masahiko
Published: August 2004

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Enantioselective Allylation of Ketone‐Derived Benzoylhydrazones: Practical Synthesis of Tertiary Carbinamines.
Authors: Berger Richard , Duff Keiko , Leighton James L.
Published: August 2004

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Highly Catalytic Enantioselective Reduction of Aromatic Ketones Using Chiral Polymer‐Supported Corey, Bakshi, and Shibata Catalysts.
Authors: Degni Sylvestre , Wilen Carl‐Eric , Rosling Ari
Published: August 2004

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A Novel and Simple Synthesis of (1S,2S)‐2‐Amino‐1‐(p‐nitrophenyl)‐3‐trityloxypropanol.
Authors: Yuan Jian‐Li , Dai Hui‐Fen , Chen Fen‐Er
Published: August 2004

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Organocatalytic Enantioselective Conjugate Addition to Alkynones.
Authors: Bella Marco , Jorgensen Karl Anker
Published: August 2004

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Rhodium‐Catalyzed Acylation of Vinylsilanes with Acid Anhydrides: Application to the Transformation of α‐Acyloxy Vinylsilanes to Unsymmetrical 1,2‐Diketones.
Authors: Yamane Motoki , Uera Kazuyoshi , Narasaka Koichi
Published: August 2004

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Highly Diastereoselective Alkylation of Vicinal Dianions of Chiral Succinic Acid Derivatives: A New General Strategy to (R)‐β‐Arylmethl‐γ‐butyrolactones.
Authors: Pohmakotr Manat , Soorukram Darunee , Tuchinda Patoomratana , Prabpai Samran , Kongsaeree Palangpon , Reutrakul Vichai
Published: August 2004

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Rapid, Highly Diastereoselective Addition of Dialkylzinc Reagents to Atropisomeric 2‐Formyl Arylamides.
Authors: Jimeno Ciril , Rios Ramon , Carroll Patrick J. , Walsh Patrick J.
Published: August 2004

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A Ruthenium‐Grafted Hydrotalcite as a Multifunctional Catalyst for Direct α‐Alkylation of Nitriles with Primary Alcohols.
Authors: Motokura Ken , Nishimura Daisuke , Mori Kohsuke , Mizugaki Tomoo , Ebitani Kohki , Kaneda Kiyotomi
Published: August 2004

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Palladium‐Catalyzed Arylation of Acetoacetates Esters to Yield 2‐Arylacetic Acid Esters.
Authors: Zeevaart Jacob G. , Parkinson Christopher J. , de Koning Charles B.
Published: August 2004

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Arene Sulfonylation Catalyzed by Silicious Alumina.
Authors: Gerasimova N. P. , Ermolaeva V. V. , Nozhnin N. A. , Alov E. M. , Moskvichev Yu. A.
Published: August 2004

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Syntheses with Participation of α,β‐Unsaturated Sulfones.
Authors: Ermolaeva V. V. , Alov E. M. , Gerasimova N. P. , Nozhnin N. A. , Moskvichev Yu. A.
Published: August 2004

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A Highly Efficient Microwave‐Assisted Suzuki Coupling Reaction of Aryl Perfluorooctylsulfonates with Boronic Acids.
Authors: Zhang Wei , Chen Christine Hiu‐Tung , Lu Yimin , Nagashima Tadamichi
Published: August 2004

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Chiral Oxazoline Route to Enantiomerically Pure Biphenyls: Magnesio and Copper Mediated Asymmetric Hetero‐ and Homo‐Coupling Reactions.
Authors: Meyers A. I. , Nelson Todd D. , Moorlag Henk , Rawson David J. , Meier Anton
Published: August 2004

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New Atropisomeric Biaryl Derivatives of 4‐Aminopyridine—Identification of an Improved Nucleophilic Catalyst for Asymmetric Acylation of sec‐Alcohols.
Authors: Spivey Alan C. , Leese David P. , Zhu Fujiang , Davey Stephen G. , Jarvest Richard L.
Published: August 2004

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Alkylation of Isonitrile Derivatives with 2,2′‐Bis(bromomethyl)‐1,1′‐biphenyl.
Authors: Kotha Sambasivarao , Behera Manoranjan
Published: August 2004

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A 4‐exo‐Dig Cyclocarbopalladation/8π Electrocyclization Cascade: Expeditious Access to the Tricyclic Core Structures of the Ophiobolins and Aleurodiscal.
Authors: Salem Bahaa , Suffert Jean
Published: August 2004

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Novel Prospects of the Acidic Thermal Rearrangement of Spiro[cyclopropane‐1,5′‐isoxazolidines] to β‐Lactams.
Authors: Cordero Franca M. , Salvati Maria , Pisaneschi Federica , Brandi Alberto
Published: August 2004

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A New and Convenient Route to Optically Active 2‐Phosphoryl‐3‐oxo‐5‐alkyl/‐aryltetrahydrofurans and Their Reactions.
Authors: Xu Chengfu , Zhang Yonghui , Yuan Chengye
Published: August 2004

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Absolute Asymmetric Synthesis by Nucleophilic Carbonyl Addition Using Chiral Crystals of Achiral Amides.
Authors: Sakamoto Masami , Kobaru Shuichiro , Mino Takashi , Fujita Tsutomu
Published: August 2004

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Synthesis of the First Enantiomerically Pure and Chiral, Disubstituted 3,4‐Ethylenedioxythiophenes (EDOTs) and Corresponding Stereo‐ and Regioregular PEDOTs.
Authors: Caras‐Quintero Dolores , Baeuerle Peter
Published: August 2004

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Supramolecular Assembly of a Quaterthiophene Surfactant.
Authors: Jiang Lu , Hughes Robert C. , Sasaki Darryl Y.
Published: August 2004

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Photochromism of a Novel 6π Conjugate System Having a Bis(2,3′‐benzothienyl) Unit.
Authors: Yamaguchi Tadatsugu , Fujita Yuji , Irie Masahiro
Published: August 2004

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Synthesis of New 2,3‐Dihydrofuran‐3‐one Derivative and Its Reactions with Some Primary Amines.
Authors: Uengoeren S. H. , Sacmaci M. , Akcamur Y. , Arici C. , Uelkue D.
Published: August 2004

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Palladium‐Catalyzed Cyclocarbonylation of Unsaturated Alcohols and Amines. Chemoselective Synthesis of Heterocycle‐Substituted γ‐ and δ‐Lactones and Lactams.
Authors: Granito Catia , Troisi Luigino , Ronzini Ludovico
Published: August 2004

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