bluuebunny/crossref_metadata_2025_split huggingface dataset:
Markownikoff and anti‐Markownikoff Hydroamination with Palladium Catalysts Immobilized in Thin Films of Silica Supported Ionic Liquids.
Authors: Jimenez Oriol , Mueller Thomas E. , Sievers Carsten , Spirkl Andreas , Lercher Johannes A. 
Published: November 2006

AbstractChemInform 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.
“Green” Iodination of Dimethoxy‐ and Trimethoxy‐Substituted Aromatic Compounds Using an Iodine—Hydrogen Peroxide Combination in Water.
Authors: Pavlinac Jasminka , Zupan Marko , Stavber Stojan 
Published: November 2006

AbstractChemInform 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 HF/BF3‐Catalyzed Reaction of Substituted Benzenes with Carbon Monoxide.
Authors: Willemse J. Alexander , Bezuidenhoudt Barend C. B. , Holzapfel Cedric W. 
Published: November 2006

AbstractChemInform 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‐Type Catalytic Three‐Component Mannich Reactions Leading to an Efficient Synthesis of α,β‐Diamino Acid Derivatives.
Authors: Salter Matthew M. , Kobayashi Jun , Shimizu Yusuke , Kobayashi Shu 
Published: November 2006

AbstractChemInform 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.
Fluorobis(phenylsulfonyl)methane: A Fluoromethide Equivalent and Palladium‐Catalyzed Enantioselective Allylic Monofluoromethylation.
Authors: Fukuzumi Takeo , Shibata Norio , Sugiura Masayoshi , Yasui Hiroyuki , Nakamura Shuichi , Toru Takeshi 
Published: November 2006

AbstractChemInform 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‐Heterocyclic Carbene‐Catalyzed Conjugate Umpolung for the Synthesis of γ‐Butyrolactones.
Authors: Burstein Christian , Tschan Serena , Xie Xiulan , Glorius Frank 
Published: November 2006

AbstractChemInform 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 Approaches to Polysubstituted Pyrroles and γ‐Lactams Based on Nucleophilic Addition of Ti(IV) Enolates Derived from α‐Diazo‐β‐keto Carbonyl Compounds to N‐Tosylimines.
Authors: Dong Changqing , Deng Guisheng , Wang Jianbo 
Published: November 2006

AbstractChemInform 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 Substituted Carbazoles, Indoles, and Dibenzofurans by Vinylic to Aryl Palladium Migration.
Authors: Zhao Jian , Larock Richard C. 
Published: November 2006

AbstractChemInform 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.
Chemoselectivity of the [2 + 3]‐Cycloaddition of Thiocarbonyl Ylides with 5‐Benzylidene‐3‐phenylrhodanine.
Authors: Seyfried M. S. , Linden A. , Mloston G. , Heimgartner H. 
Published: November 2006

AbstractChemInform 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.
4‐Hydroxy‐2‐quinolones. Part 92. Reaction of 1‐R‐4‐Chloro‐3‐ethoxycarbonyl‐2‐oxo‐1,2‐dihydroquinolines with Anilines.
Authors: Ukrainets I. V. , Sidorenko L. V. , Gorokhova O. V. , Jaradat N. A. 
Published: November 2006

AbstractChemInform 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 Synthesis of Novel Ethyl 4‐(Substituted amino)isothiazolo[5,4‐b]pyridine‐5‐carboxylates.
Authors: Mukherjee Attreyee , Sarkar Mili , Mahalanabis Kumar K. 
Published: November 2006

AbstractChemInform 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 Study of New 2‐Aryl‐1‐(4‐nitrophenyl)‐1,1a‐dihydroazireno[1,2‐a]quinoxaline Derivatives.
Authors: Zbruyev A. I. , Yaremenko F. G. , Chebanov V. A. , Desenko S. M. , Shishkin O. V. , Lukinova E. V. , Knyazeva I. V. 
Published: November 2006

AbstractChemInform 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 Azinylthioureas (I) and Their Heterocyclization Using α‐Chloroacetoacetic Ester.
Authors: Dovlatyan V. V. , Eliazyan K. A. , Ghazaryan E. A. , Yengoyan A. P. 
Published: November 2006

AbstractChemInform 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.
Direction of Isomerization of 5‐Hydroxy‐3‐propargylthio‐1,2,4‐triazines According to 1H/15N Heteronuclear Multiple Bond Correlation (HMBC) Spectra.
Authors: Smutin V. Yu. , Gindin V. A. , Sablina N. O. 
Published: November 2006

AbstractChemInform 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.
Use of the tert‐Amino Effect in the Synthesis of Spirocyclic Fused α‐Carbolines.
Authors: Vlaskina N. M. , Suzdalev K. F. , Babakova M. N. , Mezheritskii V. V. , Kartsev V. G. 
Published: November 2006

AbstractChemInform 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 Intermolecular Pauson—Khand Reaction of Sugar‐Derived Azaenynes: A Case of Total Diastereoselectivity.
Authors: Areces Pilar , Carrasco Esther , Plumet Joaquin 
Published: November 2006

AbstractChemInform 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.
Formation of Isoxazoles Using Cerium Ammonium Nitrate (CAN): A One‐Pot Synthesis of Glycomimetics.
Authors: Beha Sara , Giguere Denis , Patnam Ramesh , Roy Rene 
Published: November 2006

AbstractChemInform 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 “Reversed” Pyrazole‐C‐nucleoside Precursors from Push—Pull Activated Monosaccharide Derivatives.
Authors: Hashmi Imran Ali , Feist Holger , Michalik Manfred , Reinke Helmut , Peseke Klaus 
Published: November 2006

AbstractChemInform 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.
Heliconols A—C: Antimicrobial Hemiketals from the Freshwater Aquatic Fungus Helicodendron giganteum.
Authors: Mudur Sanjay V. , Swenson Dale C. , Gloer James B. , Campbell Jinx , Shearer Carol A. 
Published: November 2006

AbstractChemInform 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.
Hydnellins A and B, Nitrogen‐Containing Terphenyls from the Mushrooms Hydnellum suaveolens and Hydnellum geogerirum
Authors: Hashimoto Toshihiro , Quang Dang Ngoc , Kuratsune Michio , Asakawa Yoshinori 
Published: November 2006

AbstractChemInform 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.
Matrix Preparation and Spectroscopic and Theoretical Investigations of Simple Methylidene and Methylidyne Complexes of Group 4—6 Transition Metals
Authors: Andrews Lester , Cho Han‐Gook 
Published: November 2006

AbstractChemInform 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.
Cyclic and Polymeric Alkyl/Aryl Phosphazenes
Authors: Wisian‐Neilson Patty , Jung June‐Ho , Potluri Srinagesh K. 
Published: November 2006

AbstractChemInform 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.
DNA Nanomachines and Nanostructures Involving Quadruplexes
Authors: Albert Patrizia , Bourdoncle Anne , Sacca Barbara , Lacroix Laurent , Mergny Jean‐Louis 
Published: November 2006

AbstractChemInform 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 phenylacetylene addition to aldehydes and ketones catalyzed by recyclable polymeric Zn(salen) complex
Authors: Pathak Kavita , Bhatt Achyut P. , Abdi Sayed H. R. , Kureshy Rukhsana I. , Khan Noor‐Ul H. , Ahmad Irshad , Jasra Raksh V. 
Published: November 2006

AbstractNew polymeric Zn(salen) complex was employed in the enantioselective phenylacetylene addition to aldehydes and ketones to produce corresponding chiral secondary propargylic alcohols with yields (up to 96%) and enantioselectivity (up to 72%) and tertiary propargylic alcohols with yields (up to 79%) and enantioselectivity (up to 68%) at room temperature, with added advantage of four times reuse with retention of enantioselectivity. Chirality, 2006. © 2006 Wiley‐Liss, Inc.
Einflüsse auf die elektroosmotische Durchströmung von nanoporösen Haufwerken
Authors: Schäfer B. , Nirschl H. 
Published: November 2006

AbstractDie Durchströmung von Haufwerken, in denen Partikel in engem Kontakt mit ihren Nachbarn stehen, ist für viele industrielle Prozesse von Bedeutung. In nanoporösen Haufwerken sind Stoff‐ und Ladungstransport miteinander verknüpft. Diese elektrokinetischen Effekte bieten die Möglichkeit, das Problem des hohen Durchströmungswiderstandes zu umgehen. Der hohe Durchströmungswiderstand schränkt den Einsatz von Nanopartikeln ein, z. B. als Katalysatorträger in Festbettreaktoren. Die hier untersuchten Haufwerke wurden durch Filtration von wässrigen Titandioxid‐ und Aluminiumoxidsuspensionen hergestellt und anschließend mit Elektrolytlösungen verschiedener pH‐Werte und Ionenkonzentrationen durchströmt. Die druckgetriebene Durchströmung führt zur Ausbildung eines Strömungspotenzials. Das Anlegen einer externen Spannung ruft hingegen einen elektrischen Strom und einen elektroosmotischen Volumenstrom hervor. Die Messergebnisse zeigen eine klare Abhängigkeit des Strömungspotenzials und des elektroosmotischen Volumenstroms vom pH‐Wert und der Ionenstärke der Elektrolytlösung.
A simple method to calculate the signal‐to‐noise ratio of a circular‐shaped coil for MRI
Authors: Ocegueda K. , Rodríguez A.O. 
Published: November 2006

AbstractThe introduction of the ultrafast imaging sequences has renewed the interest in development of RF coils. The theoretical frame of the SNR of MRI coils is a challenge because it requires a deep mathematical background to master the associated concepts. Here, a simpler method is proposed based on Legendre polynomials. This approximation method, together with a quasi‐static approach, was used to derive a signal‐to‐noise ratio expression for a circular‐shaped coil. Legendre polynomials were used instead of a weighting function to simplify the vector potential of the power loss, and an SNR formula was then derived. The simplified version of the SNR formula of a circular coil was compared with the weighting function‐derived SNR expression using the quasi‐static approach. SNR‐vs.‐depth plots were computed to theoretically compare both SNR formulas. Results showed a strong agreement between SNR values for the circular‐shaped coil. This approach can be used as a tool to derive SNR expressions for more complex geometries. © 2006 Wiley Periodicals, Inc. Concepts Magn Reson Part A 28A: 422–429, 2006
A New Method for the Study of Processes at the Liquid–Liquid Interface Using an Array of Microdroplets on a Au Electrode
Authors: Simm Andrew O. , Chevallier François G. , Ordeig Olga , del Campo F. Javier , Munoz Francesc X. , Compton Richard G. 
Published: November 2006

AbstractWe report the fabrication of partially blocked gold electrodes, with regularly and hexagonally spaced inert hydrophobic blocks on their surface. The hydrophobic blocks, with diameters of 5 μm, are used to support liquid 5‐nonyl‐salicylaldoxime (Acorga‐P50) droplets on the surface. By voltametrically monitoring the transport‐controlled reduction rate of CuII (in pH 5 solution) at the unblocked part of the gold surface it is possible to deduce, via simulation, the parameters controlling the rate of uptake of CuII at the droplet–aqueous solution interface as the droplet “fills up” with CuII. Experimentally, it is recorded that the reduction current increases until the droplet is filled completely; after this, there is no further noticeable effect of the droplet coating. A rigorous theoretical analysis of the transients permits the deduction of partition coefficients between the aqueous solution and the organic‐droplet phase and of diffusion coefficients within the droplet. The partition coefficient for CuII between water and 5‐nonyl‐salicylaldoxime was found to be 200 at 25 °C and the diffusion coefficient of CuII inside the organic phase was determined to be 5×10−11 cm2 s−1.
Growth and characterization of glycine lithium sulphate single crystal
Authors: Balakrishnan T. , Ramamurthi K. 
Published: November 2006

AbstractSingle crystal of glycine lithium sulphate, a nonlinear optical material, was grown from aqua solution by temperature reduction method. The solubility and metastable zonewidth of glycine lithium sulphate were estimated using aqueous solution. The cell parameters of the grown crystal were estimated by single crystal X‐ ray diffraction analysis. The presence of functional groups was identified from FTIR spectrum. Thermal analysis was performed to study the thermal stability of the grown crystal. The transmission and absorption spectra of this crystal show that the lower cut off wavelength lies at 330 nm. Powder Second Harmonic Generation efficiency of the grown crystal measured by Kurtz technique is 0.75 times that of potassium dihydrogen orthophosphate. Vickers microhardness study was carried out on the well developed (011) face of the grown crystal. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
A hexagonal columnar packing structure of C7 symmetric supramolecules: a superstructure of a 2:3 complex of heptakis‐(6‐O‐tert‐butyldimethylsilyl)‐β‐cyclodextrin and ethyl acetate
Authors: Katoh M. , Kohmoto S. , Kishikawa K. 
Published: November 2006

AbstractThe recrystallization of Heptakis[6‐O‐tert
‐butyldimethylsilyl)]‐β ‐cyclodextrin (1) from ethyl
acetate gave single crystals of 12·(ethyl acetate)3 complex. The superstructure of 12·(ethyl acetate)3 complex was investigated by 1H NMR spectroscopy, molecular modeling, and single crystal/powder X‐ray diffractions. Encapsulation of ethyl acetate molecules with 1 and a unique hexagonal columnar superstructure in its crystal were found. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
High Temporal Resolution Monitoring of Fermentations Using an On‐Line Amperometric Flow‐Through Microdetector
Authors: Zór Kinga , Gáspár Szilveszter , Hashimoto Masatoshi , Suzuki Hiroaki , Csöregi Elisabeth 
Published: November 2006

AbstractAn on‐line microdetector containing amperometric biosensors was used for high temporal resolution (t90%≈120 s) monitoring of glucose and ethanol concentrations during small scale fermentations. The ability of the microdetector to report on the effect of different experimental conditions was tested in fermentation processes carried out at 30 and at 37 °C. An increased ethanol production rate accompanied by an increased glucose consumption rate in the fermentation carried out at 37 °C was promptly revealed. Therefore, the microdetector proved to be an especially useful tool to monitor fermentations where the investigated processes are too fast to be followed by classical analytical approaches.
Chiral capillary electrophoretic determination of the enantiomeric purity of homocamptothecin derivatives, promising antitumor topoisomerase I inhibitors, using highly sulfated CDs and fluorescence detection
Authors: Goossens Jean‐François , Mahieu Christine , Dias Nathalie , Bailly Christian , Principe Paola , Bonte Jean‐Paul , Lansiaux Amélie , Vaccher Claude , Foulon Catherine 
Published: November 2006

AbstractEKC methods for the enantiomeric resolution of homocamptothecin derivatives, potent anticancer agents targeting DNA topoisomerase I selected for clinical trials, were developed using highly sulfated β‐CD as chiral selectors at acidic pH. Optimal electrophoretic conditions, with migration times under 15 min, were as follows: for the neutral homocamptothecin analog1, a BGE of 75 mM phosphate buffer pH 2.5 (H3PO4 + triethanolamine)/ACN – 95/5 v/v, with 7.5% w/v highly S‐β‐CD, an applied field of 0.2 kV/cm and a fused capillary temperature control of 30 ± 0.1°C (typical current approximately 175 μA); for the cationic homocamptothecin2, a BGE of 25 mM phosphate buffer pH 2.5 (H3PO4 + TEA)/ACN – 90/10 v/v, with 2.5% w/v highly S‐β‐CD, an applied field of 0.15 kV/cm and a fused capillary temperature control of 25 ± 0.1°C (typical current approximately 45 μA), and both are validated. The best results in terms of LOQ were obtained by EC with fluorescence detection: 10 ng/mL and 20 ng/mL for1and2, respectively (LOQ divided by 150 for1and 5 for2with respect to UV), thus making this method particularly convenient for enantiomeric purity determination of galenic forms. UV detection appears to be an alternative to fluorescence for the analysis of the main component either for the control of galenic forms or for therapeutic adaptation. Moreover, this method exhibits better performances than HPLC.
Performance improvement studies of masonry houses using elastic post‐tensioning straps
Authors: Turer Ahmet , Korkmaz Serra Zerrin , Korkmaz Hasan Husnu 
Published: November 2006

Abstract
Unreinforced masonry houses are composed of building blocks with weak inter‐binding action between them which commonly possess low tensile strength. The principal tensile stresses generated by out‐of‐plane bending and in‐plane shear forces cannot be tolerated well and leads to heavy structural damage and brittle collapse beyond linear capacity of the material. Remedies such as externally applied mesh reinforcement and post‐tensioning improves post and pre‐cracking performances; however, yielding of reinforcement material or shortening of walls due to cracking causes loss of integrity and post‐tensioning force. This paper discusses a research programme on earthquake strengthening of masonry houses using post‐tensioning by elastomeric straps and related shaking table tests on 1/10 scale single storey rural dwelling models. The aim of the study is to assess the use and effectiveness of post‐tensioning rubber straps at several different configurations especially for houses with heavy earth roofs supported on wooden logs. Full‐scale application can be conducted using scrap automobile tyres, which might be implemented as an economic and environment friendly alternative strengthening technique for poor residents of low‐cost dwellings. The performance and validity of the proposed strengthening techniques were tested on 1/10 scale models using a simplistic shaking table. The structural performance of the reinforced models with vertical post‐tensioning rubber straps was significantly improved as compared to the original specimen; the results were even better when vertical and horizontal straps were used. Obtained results show promise for seismic strengthening using rubber straps for post‐tensioning. Copyright © 2006 John Wiley & Sons, Ltd.
Identification of modal parameters of non‐classically damped linear structures under multi‐component earthquake loading
Authors: Mahmoudabadi M. , Ghafory‐Ashtiany M. , Hosseini M. 
Published: November 2006

AbstractA method for parametric system identification of classically damped linear system in frequency domain is adopted and extended for non‐classically damped linear systems subjected up to six components of earthquake ground motions. This method is able to work in multi‐input/multi‐output (MIMO) case. The response of a two‐degree‐of‐freedom model with non‐classical damping, excited by one‐component earthquake ground motion, is simulated and used to verify the proposed system identification method in the single‐input/multi‐output case. Also, the records of a 10 storey real building during the Northridge earthquake is used to verify the proposed system identification method in the MIMO case. In this case, at first, a single‐input/multi‐output assumption is considered for the system and modal parameters are identified, then other components of earthquake ground motions are added, respectively, and the modal parameters are identified again. This procedure is repeated until all four components of earthquake ground motions which are measured at the base level of the building are included in the identification process. The results of identification of real building show that consideration of non‐classical damping and inclusion of the multi‐components effect of earthquake ground motions can improve the least‐squares match between the finite Fourier transforms of recorded and calculated acceleration responses. Copyright © 2006 John Wiley & Sons, Ltd.