bluuebunny/crossref_metadata_2025 huggingface dataset:
On the representation of Herbrand functions in algebraically closed fields
Authors: Lightstone A. H. , Robinson A.
Published: May 2006

1. Let X be a statement which is formulated in the lower predicate calculus in terms of the relations of addition, multiplication, and equality, and — possibly — of the elements of a given commutative field M. Suppose moreover that X is in prenex normal form, e.g.

where Z does not include any further quantifiers. In order that X be satisfied by the algebraic closure M* of M, it is necessary and sufficient that there exist Herbrand functions (or choice functions) φ1(x1, x2), φ2(x1, x2), φ3(x1, x2, x3, x4) with arguments ranging over M* and taking values in M* such that

holds for all x1, x2, x3, x4 in M*. In general the definition of these functions is far from being unique, and a priori they bear no relation to the functions which are defined ‘naturally’ in M* i.e. the rational, and more generally the algebraic, functions with coefficients in M or M*. However, we shall show in the present paper that the entire domain of variation of the arguments x1, x2, x3, x4 — regarded as the affine space S4 over M* — can be divided up into a finite number of regions Di such that in each Di the functions ϕk can be chosen as algebraic functions of their arguments. Indeed, our complete result (§ 3) proves rather more than that. In particular, it turns out that the regions Di may be taken as differences of algebraic varieties in M*.
Two arithmetical techniques with numbered classes
Authors: Standley Gerald B.
Published: May 2006

If numbers be used to designate classes, there can be derived from a conjunct of classes numbers corresponding to the expanded product classes.

For example, let the product classes ābc and āb be designated by numbers I and 5 as in the following matrix:

By using 1 (20) instead of a, 2 (21) instead of b, 4 (22) instead of c, etc., the following relationship emerges between the designation of the conjunct of classes (take 12) and the product classes (I and 5): the product class(es) of any conjunct of classes is (are) (1) the sum of any negated class numbers and (2) seven less the sum of any unnegated class numbers.
A theorem concerning the composition of functions of several variables ranging over a finite set
Authors: Salomaa Arto
Published: May 2006

Consider functions whose variables, finite in number, range over a fixed finite set N and whose values are elements of N. The elements of N are denoted simply by the natural numbers 1,2, …, n. There are nnm distinct m-place functions. If N is chosen to be the set of n truth-values then the functions considered are obviously truth-functions in n-valued logic.
Modalities in Ackermann's “rigorous implication”
Authors: Ross Anderson Alan , Belnap Nuel D.
Published: May 2006

Following a suggestion of Feys, we use “rigorous implication” as a translation of Ackermann's strenge Implikation ([1]). Interest in Ackermann's system stems in part from the fact that it formalizes the properties of a strong, natural sort of implication which provably avoids standard implicational paradoxes, and which is consequently a good candidate for a formalization of entailment (considered as a narrower relation than that of strict implication). Our present purpose will not be to defend this suggestion, but rather to present some information about rigorous implication. In particular, we show first that the structure of modalities (in the sense of Parry [4]) in Ackermann's system is identical with the structure of modalities in Lewis's S4, and secondly that (Ackermann's apparent conjecture to the contrary notwithstanding) it is possible to define modalities with the help of rigorous implication.
Using ColE1‐derived RNA I for suppression of a bacterially encoded gene: implication for a novel plasmid addiction system
Authors: Pfaffenzeller Irene , Mairhofer Jürgen , Striedner Gerald , Bayer Karl , Grabherr Reingard
Published: May 2006

The use of plasmid DNA for gene therapeutical purposes is a novel technology with advantages and drawbacks. One of the required improvements is to avoid antibiotic resistance genes or other additional sequences for selection within the plasmid. Here, we describe an alternative approach to equip a ColE1 plasmid with a regulatory function within the cell, which could be used for selection of plasmid carrying cells. No additional sequences are required, since the mechanism is based on RNA/RNA antisense interaction involving the naturally occurring RNA I derived from the plasmid's origin of replication. The plasmid replicational regulatory network was linked to the transcriptional regulatory network of an engineered target gene, present on the bacterial chromosome. Thus, gene suppression of a reporter could be achieved by mere presence of the ColE1‐type plasmid pBR322. Proof of this concept was shown in shaker‐flask experiments and fed‐batch fermentation processes. The strategy of regulating gene expression by plasmid replication implicates a novel strategy for plasmid selection, as the gene to be suppressed could be toxic or growth hampering, providing advantage to plasmid carrying host cells.
Association between early systemic inflammatory response, severity of multiorgan dysfunction and death in acute pancreatitis
Authors: Mofidi R , Duff M D , Wigmore S J , Madhavan K K , Garden O J , Parks R W
Published: May 2006

Background

Mortality in patients with acute pancreatitis is associated with the number of failing organs and the severity and reversibility of organ dysfunction. The aim of this study was to assess the significance of early systemic inflammatory response syndrome (SIRS) in the development of multiorgan dysfunction syndrome (MODS) and death from acute pancreatitis.

Methods

Data for all patients with a diagnosis of acute pancreatitis between January 2000 and December 2004 were reviewed. Serum C-reactive protein (CRP), Acute Physiology And Chronic Health Evaluation (APACHE) II scores and presence of SIRS were recorded on admission and at 48 h. Marshall organ dysfunction scores were calculated during the first week of presentation. Presence of SIRS and raised serum CRP levels on admission and at 48 h were correlated with the cumulative organ dysfunction scores in the first week.

Results

A total of 759 patients with acute pancreatitis were identified, of whom 45 (5·9 per cent) died during the index admission. SIRS was identified in 162 patients on admission and was persistent in 138 at 48 h. The median (range) cumulative Marshall score in patients with persistent SIRS was significantly higher than that in patients in whom SIRS resolved and in those with no SIRS (4 (0–12), 3 (0–7) and 0 (0–9) respectively; P < 0·001). Thirty-five patients (25·4 per cent) with persistent SIRS died from acute pancreatitis, compared with six patients (8 per cent) with transient SIRS and four (0·7 per cent) without SIRS (P < 0·001). No correlation was observed between CRP level on admission and Marshall score (P = 0·810); however, there was a close correlation between CRP level at 48 h and Marshall score (P < 0·001).

Conclusion

Persistent SIRS is associated with MODS and death in patients with acute pancreatitis and is an early indicator of the likely severity of acute pancreatitis.
European experience with laparoscopic Roux-en-Y gastric bypass in 466 obese patients
Authors: Suter M , Paroz A , Calmes J-M , Giusti V
Published: May 2006

Background

Roux-en-Y gastric bypass (RYGBP) is usually considered as the procedure of choice for morbid obesity, but its use has been limited in Europe. It is not known whether results with European patients match those from the USA.

Methods

A total of 466 patients were followed prospectively regarding weight loss, co-morbidities, quality of life and morbidity after primary laparoscopic RYGBP. Overall assessment was done using the bariatric analysis and reporting outcome system (BAROS).

Results

Conversion to open surgery was necessary in three patients. The overall early morbidity rate was 17·0 per cent and the rate of major complications was 4·7 per cent. The mortality rate was 0·2 per cent. Major morbidity decreased over time. Excess weight loss of over 50 per cent was maintained for up to 4 years in 71·4 per cent of the morbidly obese and 65·2 per cent of the superobese patients. Co-morbidities resolved or improved in most patients and quality of life improved. At 3 years, the BAROS score was excellent or very good in 77·1 per cent and good in 22·8 per cent. Late complications leading to reoperation developed in 19 patients (4·1 per cent).

Conclusion

These results are satisfactory and comparable to those reported from the USA. Owing to limitations associated with purely restrictive bariatric procedures, laparoscopic RYGBP is likely to become the procedure of choice for treatment of morbid obesity in Europe.
Randomized clinical trial and follow-up study of cost-effectiveness of laparoscopic versus conventional Nissen fundoplication
Authors: Draaisma W A , Buskens E , Bais J E , Simmermacher R K J , Rijnhart-de Jong H G , Broeders I A M J , Gooszen H G
Published: May 2006

Background

Laparoscopic Nissen fundoplication (LNF) has essentially replaced its conventional open counterpart (CNF). An economic evaluation of LNF compared with CNF based on prospective data with adequate follow-up is lacking.

Methods

Data from two consecutive studies (a randomized clinical trial (RCT) of 57 patients undergoing LNF and 46 undergoing CNF that was terminated prematurely, and a follow-up study of 121 consecutive patients with LNF) were combined to determine incremental cost-effectiveness 1 year after surgery.

Results

Mean operating time, reoperation rate and hospital costs of LNF were lower in the second series. The mean overall hospital cost per patient was €9126 for LNF and €6989 for CNF at 1 year in the initial RCT, and €7782 in the second LNF series. The success rate of both LNF and CNF at 1 year was 91 per cent in the RCT, and LNF was successful in 90·1 per cent in the second series. A cost reduction of €998 for LNF would cancel out the cost advantage of CNF. Similarly, if the reoperation rate after LNF decreased from 0·05 to below 0·008 and/or if the mean duration of sick leave after LNF was reduced from 67·2 to less than 61·1 days, the procedure would become less expensive than CNF. Complications, reoperation rate and quality of life after both operations were similar.

Conclusion

Including reinterventions, the outcome at 1 year after LNF and CNF was similar. In a well organized setting with appropriate expertise, the cost advantage of CNF may be neutralized.
The Prediction of the Nuclear Quadrupole Splitting of 119Sn Mössbauer Spectroscopy Data by Scalar Relativistic DFT Calculations
Authors: Krogh Jesper W. , Barone Giampaolo , Lindh Roland
Published: May 2006

The electric field gradient components for the tin nucleus of 34 tin compounds of experimentally known structures and 119Sn Mössbauer spectroscopy parameters were computed at the scalar relativistic density functional theory level of approximation. The theoretical values of the electric field gradient components were used to determine a quantity, V, which is proportional to the nuclear quadrupole splitting parameter (ΔE). In a subsequent linear regression analysis the effective nuclear quadrupole moment, Q, was evaluated. The value of (11.9±0.1) fm2 is a significant improvement over the non‐relativistic result of (15.2±4.4) fm2 and is in agreement with the experimental value of (10.9±0.8) fm2. The average mean square error ΔEcalcd−ΔEexptl=±0.3 mm s−1 is a factor of two smaller than in the non‐relativistic case. Thus, the approach has a quality which provides accurate support for the structure interpretation by 119Sn spectroscopy. It was noted that geometry optimization at the relativistic level does not significantly increase the quality of the results compared with non‐relativistic optimized structures. The accuracy in the approach called on us to consider the singlet–triplet state nature of the electronic structure of one of the investigated compounds.
Water Permeation Through MCM‐41 Channels: A Molecular Dynamics Study.
Authors: Malek Kourosh , Sun Jihong
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Ferromagnetic Ordering in the Thallide EuPdTl2.
Authors: Kraft Rainer , Rayaprol Sudhindra , Sebastian C. Peter , Poettgen Rainer
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
A New Whitlockite, Ca8.42Na1.16V(PO4)7.
Authors: Tsirlin Alexander A. , Dikarev Evgeny V. , Shpanchenko Roman V. , Antipov Evgeny V.
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
MoCu3TeO7Cl2×0.5H2O.
Authors: Takagi Rie , Duc Fabienne , Johnsson Mats
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Cation Distribution in the Zirconium Chloride Cluster Phase Cs[(Zr6C)Cl15].
Authors: Rohm Henning W. , Koeckerling Martin
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Crystal Structure of Ba3ZrRu2O9 — A New 6H‐(cch)2 Perovskite.
Authors: Schuepp‐Niewa Barbara , Shlyk Larysa , Prots Yurii , Niewa Rainer , Krabbes Gernot
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis, Crystal Structure and Thermal Behavior of Gadolinium Dicyanamide Dihydrate Gd[N(CN)2]3×2H2O.
Authors: Nag Abanti , Schnick Wolfgang
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
DFT Calculation of the 183W NMR Chemical Shifts in Reduced Polyoxotungstates.
Authors: Gracia Jose , Poblet Josep M. , Fernandez Jorge A. , Autschbach Jochen , Kazansky Leonid P.
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Influence of Oxygen Defects on the Structure and Magnetic Properties of Sr1‐xBixCoO3‐y (0.1 ≤ x ≤ 0.2) Supercell Perovskites.
Authors: Knee Christopher S. , Lindberg Fredrik , Khan Nasima , Svensson Gunnar , Svedlindh Peter , Rundloef Haakan , Eriksson Sten G. , Boerjesson Lars
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Crystalline Carbon Hollow Spheres, Crystalline Carbon—SnO2 Hollow Spheres, and Crystalline SnO2 Hollow Spheres: Synthesis and Performance in Reversible Li‐Ion Storage.
Authors: Wang Yong , Su Fabing , Lee Jim Yang , Zhao X. S.
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Combined in situ EDXRD/EXAFS Investigation of the Crystal Growth of [Co(C6H18N4)][Sb2S4] under Solvothermal Conditions: Two Different Reaction Pathways Leading to the Same Product.
Authors: Kiebach Ragnar , Pienack Nicole , Ordolff Marie‐Eve , Studt Felix , Bensch Wolfgang
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Chemiluminescence Accompanied by the Reaction of Gold Nanoparticles with Potassium Permanganate.
Authors: Zhang Zhi‐Feng , Cui Hua , Shi Ming‐Juan
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis and Characterization of Alkali Metal and Thallium Polyfluoroantimonates, ASbnF5n+1 (n = 2, 3).
Authors: Benkic Primoz , Brooke Jenkins H. Donald , Ponikvar Maja , Mazej Zoran
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
La(OH)2I(H2O): Closing a Gap in Rare Earth Hydroxide Halide Structural Chemistry.
Authors: Nilges Tom
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Iridium‐Catalyzed Regio‐ and Enantioselective Allylation of Ketone Enolates.
Authors: Graening Timm , Hartwig John F.
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Catalytic Enantioselective Aza‐Henry Reaction with Broad Substrate Scope.
Authors: Palomo Claudio , Oiarbide Mikel , Laso Antonio , Lopez Rosa
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Amino Acid Catalyzed Asymmetric α‐Amination of Carbonyls.
Authors: Thomassigny Christine , Prim Damien , Greck Christine
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Bismuth Triflate‐Chiral Bipyridine Complex Catalyzed Asymmetric Ring Opening Reactions of meso‐Epoxide in Water.
Authors: Ogawa Chikako , Azoulay Stephane , Kobayashi Shu
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Chiral Bisphospholane Ligands (Me‐ketalphos): Synthesis of Their Rh(I) Complexes and Applications in Asymmetric Hydrogenation.
Authors: Dai Qian , Wang Chun‐Jiang , Zhang Xumu
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Expanding the Scope of Lewis Acid Catalysis in Water: Remarkable Ligand Acceleration of Aqueous Ytterbium Triflate Catalyzed Michael Addition Reactions.
Authors: Ding Rui , Katebzadeh Kambiz , Roman Lisa , Bergquist Karl‐Erik , Lindstroem Ulf M.
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
The Product‐Catalyzed [2,3]‐Wittig Rearrangement of Silyl Enolates Generated from α‐Allyloxy Ketones.
Authors: Sato Yoshinori , Fujisawa Hidehiko , Mukaiyama Teruaki
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Generation of β‐Keto Radicals from Cyclopropanols Catalyzed by AgNO3.
Authors: Chiba Shunsuke , Cao Zhengyan , El Bialy Serry Atta Atta , Narasaka Koichi
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Convenient and Efficient Pd‐Catalyzed Regioselective Oxyfunctionalization of Terminal Olefins by Using Molecular Oxygen as Sole Reoxidant.
Authors: Mitsudome Takato , Umetani Takuya , Nosaka Naoya , Mori Kohsuke , Mizugaki Tomoo , Ebitani Kohki , Kaneda Kiyotomi
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
A Practical Synthesis of a High‐Loading Solid‐Supported IBX Amide for the Oxidation of Alcohols.
Authors: Lecarpentier Patrick , Crosignani Stefano , Linclau Bruno
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Unsymmetrical Ferrocenylethylamine‐Derived Monophosphoramidites: Highly Efficient Chiral Ligands for Rh‐Catalyzed Enantioselective Hydrogenation of Enamides and α‐Dehydroamino Acid Derivatives.
Authors: Zeng Qing‐Heng , Hu Xiang‐Ping , Duan Zheng‐Chao , Liang Xin‐Miao , Zheng Zhuo
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Hydrovinylation of 1,3‐Dienes: A New Protocol, and Asymmetric Variation, and a Potential Solution to the Exocyclic Side Chain Stereochemistry Problem.
Authors: Zhang Aibin , RajanBabu T. V.
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Improved Julia—Kocienski Conditions for the Methylenation of Aldehydes and Ketones.
Authors: Aissa Christophe
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
A Ring‐Closing Yne‐Carbonyl Metathesis of Ynamides.
Authors: Kurtz Kimberly C. M. , Hsung Richard P. , Zhang Yanshi
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Cerium(IV) Ammonium Nitrate‐Catalyzed Synthesis of β‐Keto Enol Ethers from Cyclic β‐Diketones and Their Deprotection.
Authors: Banerjee Biplab , Mandal Samir Kumar , Roy Subhas Chandra
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Alternative Method of Boc‐Removal from Sulfamide Using Silica‐Phenyl Sulfonic Acid in Conjunction with Microwave Heating.
Authors: Ghassemi Shahnaz , Fuchs Kristin
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Efficient Synthesis of Enynes by Tetraphosphine—Palladium‐Catalyzed Reaction of Vinyl Bromides with Terminal Alkynes.
Authors: Feuerstein Marie , Chahen Ludovic , Doucet Henri , Santelli Maurice
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Facile Preparation and Purification of Mono tert‐Butyl Malonate.
Authors: Tararov Vitali I. , Korostylev Andrei , Koenig Gerd , Boerner Armin
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Study on the Reactions of Fluoroalkanesulfonyl Azides with Cycloalkenyl Ether and Aryl Ynamines.
Authors: He Ping , Zhu Shizheng
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Palladium‐Catalyzed [3 + 2] Intramolecular Cycloaddition of Alk‐5‐enylidenecyclopropanes.
Authors: Gulias Moises , Garcia Rebeca , Delgado Alejandro , Castedo Luis , Mascarenas Jose L.
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Conversion of an Arabinose‐Derived Allyl Vinyl Ether System into the Functionalized 4‐Cycloheptenone via Claisen Rearrangement.
Authors: Juers Stefan , Thiem Joachim
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Phosphorodiamidic Acid as a Novel Structural Motif of Broensted Acid Catalysts for Direct Mannich Reaction of N‐Acyl Imines with 1,3‐Dicarbonyl Compounds.
Authors: Terada Masahiro , Sorimachi Keiichi , Uraguchi Daisuke
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Formamides Derived from N‐Methyl Amino Acids Serve as New Chiral Organocatalysts in the Enantioselective Reduction of Aromatic Ketimines with Trichlorosilane.
Authors: Malkov Andrei V. , Stoncius Sigitas , MacDougall Kenneth N. , Mariani Andrea , McGeoch Grant D. , Kocovsky Pavel
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Copper(II) Tetrafluoroborate as a Novel and Highly Efficient Catalyst for N‐tert‐Butoxycarbonylation of Amines under Solvent‐Free Conditions at Room Temperature.
Authors: Chankeshwara Sunay V. , Chakraborti Asit K.
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis of N‐(Iodophenyl)‐amides via an Unprecedented Ullmann—Finkelstein Tandem Reaction.
Authors: Toto Patrick , Gesquiere Jean‐Claude , Deprez Benoit , Willand Nicolas
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Transfer Hydrogenation Using Recyclable Polymer‐Supported Formate (PSF): Efficient and Chemoselective Reduction of Nitroarenes.
Authors: Basu Basudeb , Das Pralay , Das Sajal
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis of Enantiopure Allylamines by Reductive Alkylation of Amino Epoxides with Organolithium Reagents.
Authors: Concellon Jose M. , Suarez Jose Ramon , del Solar Virginia
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
An Efficient Route to Pentasubstituted Phenols.
Authors: Khan Faiz Ahmed , Choudhury Sumit
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Studies into Asymmetric Catalysis of the Nozaki—Hiyama Allenylation.
Authors: Inoue Masahiro , Nakada Masahisa
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Highly Enantioselective Addition of Diphenylzinc to Aliphatic and Aromatic Aldehydes Catalyzed by a Readily Available H8‐Binol Derivative.
Authors: Qin Ying‐Chuan , Pu Lin
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
L‐Proline‐Catalyzed Asymmetric Aldol Reactions in PEG‐400 as Recyclable Medium and Transfer Aldol Reactions.
Authors: Chandrasekhar S. , Reddy N. Ramakrishna , Sultana S. Shameem , Narsihmulu Ch. , Reddy K. Venkatram
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Dinuclear Zn‐Catalyzed Asymmetric Alkynylation of Unsaturated Aldehydes.
Authors: Trost Barry M. , Weiss Andrew H. , van Wangelin Axel Jacobi
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Acid‐Free, Organocatalytic Acetalization.
Authors: Kotke Mike , Schreiner Peter R.
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
DMSO/NaNO2/49% HBr: A Novel and Powerful Oxidant for the Direct Conversion of Primary Benzylamines to Benzoic Acids.
Authors: Naik Ramesh , Pasha M. A.
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Aza‐Baylis—Hillman Reaction of N‐Tosylated Imines with β‐Substituted α,β‐Unsaturated Esters.
Authors: Shi Yong‐Ling , Shi Min
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
An Efficient Synthesis of β‐Aroylacrylic Acid Ethyl Ester by the Friedel—Crafts Reaction in the Presence of Diethyl Sulfate.
Authors: Onoue Ken‐ichi , Shintou Taichi , Zhang Chang Shan , Itoh Isamu
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
PEG‐400 Promoted Pd(OAc)2/DABCO‐Catalyzed Cross‐Coupling Reactions in Aqueous Media.
Authors: Li Jin‐Heng , Hu Xi‐Chao , Liang Yun , Xie Ye‐Xiang
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Nickel‐Catalyzed Cross‐Coupling Reaction of Aryl Fluorides and Chlorides with Grignard Reagents under Nickel/Magnesium Bimetallic Cooperation.
Authors: Yoshikai Naohiko , Mashima Hiroko , Nakamura Eiichi
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Combined Suzuki Coupling — Wittig Olefination Reaction in Aqueous Medium.
Authors: Yamamoto Kyoko , Watanabe Masataka , Ideta Kyoko , Mataka Shuntaro , Thiemann Thies
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
2‐Pyridinealdoxime, a New Ligand for a Pd‐Precatalyst: Application in Solid‐Phase‐Assisted Suzuki—Miyaura Reaction.
Authors: Solodenko Wladimir , Brochwitz Christoph , Wartchow Rudolf , Abul Hashem Md. , Dawood Kamal M. , Vaultier Michel , Kirschning Andreas
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
New Efficient Approach to 2,2‐Diaryl‐1,1‐difluoro‐1‐alkenes and 1,1‐Difluoro‐2‐aryl‐1,3‐dienes via Suzuki Coupling of α‐Halo‐β,β‐difluorostyrenes.
Authors: Raghavanpillai Anilkumar , Burton Donald J.
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
A New Class of Chiral Tetrahydropyran‐4‐one Catalyst for Asymmetric Epoxidation of Alkenes.
Authors: Armstrong Alan , Tsuchiya Tomoki
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
An Annulation Toward Fused Bicyclolactones.
Authors: Nguyen Rene‐Viet , Li Chao‐Jun
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Straightforward Synthesis of 1,6‐Dioxaspiro[4.4]nonanes.
Authors: Melendez Jaisiel , Alonso Francisco , Yus Miguel
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Gold(III) Porphyrin Catalyzed Cycloisomerization of Allenones.
Authors: Zhou Cong‐Ying , Chan Philip Wai Hong , Che Chi‐Ming
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis and Antiinflammatory Activity of N‐[1‐(5‐R‐Oxy‐2‐methylbenzofuran‐3‐yl)ethyl]‐N‐hydroxyureas.
Authors: Zaitsev S. A. , Onuchina O. A. , Alekseeva L. M. , Arzamastsev A. P. , Kalinkina M. A. , Granik V. G.
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
The Mannich‐Type Reaction Between N,O‐Acetals and Carbon Nucleophiles under Solvent‐Free Conditions.
Authors: Matsumura Yoshihiro , Ikeda Takashi , Onomura Osamu
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
An Efficient Synthesis of New Spiro[indolo‐3(1H),2′(3′H)‐oxadiazolyl] and 1‐(Triazol‐4‐ylmethyl)isatin Derivatives.
Authors: Bouhfid Rachid , Joly Nicolas , Massoui Mohamed , Cecchelli Romeo , Lequart Vincent , Martin Patrick , Assassi El Mokhtar
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
N‐Hydroxy Indoles as Flexible Substrates in Rearrangements — A Novel Reaction with Activated Triple Bonds.
Authors: Duarte Mariana P. , Mendonca Ricardo F. , Prabhakar Sundaresan , Lobo Ana M.
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Diastereoselective, Titanium‐Mediated Cyclization of ω‐Vinyl Tethered Imides.
Authors: Santra Soumava , Masalov Nikolai , Epstein Oleg L. , Cha Jin Kun
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Pt(II)‐ or Au(III)‐Catalyzed [3 + 2] Cycloaddition of Metal‐Containing Azomethine Ylides: Highly Efficient Synthesis of the Mitosene Skeleton.
Authors: Kusama Hiroyuki , Miyashita Yuichi , Takaya Jun , Iwasawa Nobuharu
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Effective Methods for Introducing Some Aryl and Heteroaryl Substituent onto 1‐Azaazulene Nuclei.
Authors: Abe Noritaka , Tanaka Megumi , Maeda Takeshi , Fujii Hiroyuki , Kakechi Akikazu
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Direct Conversion of tert‐Butyl 2‐Hydroxyalkyl Sulfides to 1,3‐Oxathiolanes.
Authors: Porter Michael J. , Saez Fabienne , Sandhu Amandeep Kaur
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Solvent‐Free Regioselective Cyclization of 3‐Allylmercapto‐1,2,4‐triazoles to Thiazolo[3,2‐b]1,2,4‐triazoles over Sulfuric Acid Adsorbed on Silica Gel.
Authors: Heravi M. M. , Khademalfoghara H. R. , Sadeghi M. M. , Khaleghi Sh. , Ghassemzadeh M.
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Stereoselective Synthesis of Polysubstituted Tetrahydropyrans by Radical Cyclization of Epoxides Using a Transition‐Metal Radical Source.
Authors: Banerjee Biplab , Roy Subhas Chandra
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
A Convenient Procedure for the Synthesis of Substituted 4‐Methylaminocoumarins.
Authors: Al‐Zghoul Khadeejh , Salih Kifah S. M. , Ayoub Mikdad T. , Mubarak Mohammad S.
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
The Discovery of Fluoropyridine‐Based Inhibitors of the Factor VIIa/TF Complex. Part 2.
Authors: Kohrt Jeffrey T. , et al. et al.
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Enantioselective Aza‐Diels—Alder Reaction Catalyzed by a Chiral Broensted Acid: Effect of the Additive on the Enantioselectivity.
Authors: Akiyama Takahiko , Tamura Yukio , Itoh Junji , Morita Hisashi , Fuchibe Kohei
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
A Solution to the 2‐Pyridyl Organometallic Cross‐Coupling Problem: Regioselective Catalytic Direct Arylation of Pyridine N‐Oxides.
Authors: Campeau Louis‐Charles , Rousseaux Sophie , Fagnou Keith
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis of Novel Phenylnaphthyl Phosphines and Their Applications to Pd‐Catalyzed Intramolecular Amidation.
Authors: Kitamura Yuki , Hashimoto Ayano , Yoshikawa Seiji , Odaira Jun‐ichi , Furuta Takumi , Kan Toshiyuki , Tanaka Kiyoshi
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Benign and Highly Efficient Synthesis of Quinolines from 2‐Aminoarylketone or 2‐Aminoarylaldehyde and Carbonyl Compounds Mediated by Hydrochloric Acid in Water.
Authors: Wang Guan‐Wu , Jia Cheng‐Sheng , Dong Ya‐Wei
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Reaction of 3‐Aminoquinoline‐2,4‐diones with Isocyanates. Synthesis of Novel 3‐(3′‐Alkyl/arylureido)quinoline‐2,4‐diones and Their Cyclic Carbinolamide Isomers.
Authors: Klasek Antonin , Lycka Antonin , Holcapek Michal , Hoza Ignac
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis of Tetrahydro‐β‐carbolines via Radical Cyclization of 2‐Alkenylthioanilides.
Authors: Iwadate Manami , Yamashita Tohru , Tokuyama Hidetoshi , Fukuyama Tohru
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Phthalazinones 2: Optimization and Synthesis of Novel Potent Inhibitors of Poly(ADP‐Ribose)polymerase.
Authors: Cockcroft Xiao‐ling , Dillon Krystyna J. , Dixon Lesley , Drzewiecki Jan , Kerrigan Frank , Loh Vincent M. Jr. , Martin Niall M. B. , Menear Keith A. , Smith Graeme C. M.
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Arylphthalazines. Part 2. 1‐(Isoquinolin‐5‐yl)‐4‐arylamino Phthalazines as Potent Inhibitors of VEGF Receptors I and II.
Authors: Duncton Matthew A. J. , Piatnitski Evgueni L. , Katoch‐Rouse Reeti , Smith Leon M. II , Kiselyov Alexander S. , Milligan Daniel L. , Balagtas Chris , Wong Wai C. , Kawakami Joel , Doody Jacqueline F.
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
An Efficient Route to 4‐Aryl‐5‐pyrimidinylimidazoles via Sequential Functionalization of 2,4‐Dichloropyrimidine.
Authors: Deng Xiaohu , Mani Neelakandha S.
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Straightforward Pyrimidine Ring Construction: A Versatile Tool for the Synthesis of Nucleobase and Nucleoside Analogues.
Authors: Robin Aelig , Julienne Karine , Meslin Jean‐Claude , Deniaud David
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Hit‐to‐Lead Studies: The Discovery of Potent, Orally Bioavailable Thiazolopyrimidine CXCR2 Receptor Antagonists.
Authors: Baxter Andrew , Cooper Anne , Kinchin Elizabeth , Moakes Kerry , Unitt John , Wallace Alan
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
A Novel Convenient Synthesis of Benzoquinazolines.
Authors: Marzaro Giovanni , Chilin Adriana , Pastorini Giovanni , Guiotto Adriano
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis and Antiviral Activity of 2‐Amino‐3‐ethoxycarbonylpyrazine Derivatives.
Authors: Rusinov V. L. , Kovalev I. S. , Kozhevnikov D. N. , Ustinova M. M. , Chupakhin O. A. , Pokrovskii A. G. , Ilicheva T. N. , Belanov E. F. , Bormotov N. I. , Serova O. A. , et al. et al.
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Coupling of Fischer Carbene Complexes with Alkynylstyrene Oxides: Synthesis of Benzoxepinones in Competition with Internal Oxygen Atom Transfer.
Authors: Zhang Lei , Herndon James W.
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Novel Protocol for the Asymmetric Synthesis of 3‐Hydroxy‐2‐(4‐methoxyphenyl)‐2,3‐dihydro‐1,5‐benzothiazepin‐4(5H)‐one via Bakers′ Yeast Reduction.
Authors: Komiyama Takuzo , Takaguchi Yutaka , Tsuboi Sadao
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Noncryogenic I/Br—Mg Exchange of Aromatic Halides Bearing Sensitive Functional Groups Using i‐PrMgCl—Bis[2‐(N,N‐dimethylamino)ethyl] Ether Complexes.
Authors: Wang Xiao‐jun , Sun Xiufeng , Zhang Li , Xu Yibo , Krishnamurthy Dhileepkumar , Senanayake Chris H.
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Highly Selective Formation of Propargyl‐ and Allenyltrichlorosilanes and Their Regiospecific Addition to Various Types of Aldehydes: Preparation of Both Allenic and Homopropargylic Alcohols.
Authors: Schneider Uwe , Sugiura Masaharu , Kobayashi Shu
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
A General Strategy for the Facile Synthesis of 2,7‐Dibromo‐9‐heterofluorenes.
Authors: Chen Run‐Feng , Fan Qu‐Li , Zheng Chao , Huang Wei
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis of Functionalized Benzylsilanes from Arylzinc Compounds and (Iodomethyl)trimethylsilane by Means of a Novel Rh Catalysis.
Authors: Takahashi Hideki , Hossain Kabir M. , Nishihara Yasushi , Shibata Takanori , Takagi Kentaro
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Organocatalytic Enantioselective Hydrazination of 1,3‐Dicarbonyl Compounds: Asymmetric Synthesis of α,α‐Disubstituted α‐Amino Acids.
Authors: Xu Xuenong , Yabuta Takaya , Yuan Pei , Takemoto Yoshiji
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.