bluuebunny/crossref_metadata_2025 huggingface dataset:
An integrated methodology to evaluate permeability from measured microstructures
Authors: Selomulya C. , Tran T. M. , Jia X. , Williams R. A.
Published: August 2006

Most existing data on solids dewatering behavior are based on macroscale phenomena and are often empirically based, whereas challenges still remain for fundamental understanding at a much smaller length scale. Prediction of microscale properties is now possible with enabling technologies such as X‐ray microtomography (XMT) for 3‐D imaging of solid structures and the Lattice–Boltzmann method (LBM) for calculating their permeability. Microstructural information with a spatial resolution of up to a few microns per pixel can be obtained through XMT and can be used directly by the LBM—a digital equivalent of the conventional CFD that is more adept at dealing with solid boundaries of complex geometry such as filter media—to calculate flow distribution through the porous structure. An example of this approach using glass beads is described here, from which the permeability of sediments containing this material can be predicted on the basis of a bench‐top test and the use of fluid flow simulations. The ability to derive performance information—such as fluid permeability from laboratory‐based measurements of microstructure coupled with appropriate microscale physical simulations—has considerable potentials. It is proposed that the method may be used to predict trends such as the filtration behavior of porous structures under different states of compression. This offers a significant benefit in assisting the formulation design of flocculated materials pertinent to a number of industrial sectors wishing to design optimal filtration or relevant operations. © 2006 American Institute of Chemical Engineers AIChE J, 2006
Who will you ask? An empirical study of interpersonal task information seeking
Authors: Xu Yunjie (Calvin) , Tan Bernard C.Y. , Yang Li
Published: August 2006

Information seeking behavior is an important form of human behavior. Past literature in information science and organizational studies has employed the cost‐benefit framework to analyze Seekers' information‐source choice decision. Conflicting findings have been discovered with regard to the importance of source quality and source accessibility in Seekers' choices. With a focus on interpersonal task information seeking, this study proposes a seeker‐source‐information need framework to understand the source choice decision. In this framework, task importance, as an attribute of information need, is introduced to moderate Seekers' cost‐benefit calculation. Our empirical study finds that in the context of interpersonal task information seeking, first, the least effort principle might not be adequate in explaining personal source choices; rather, a quality‐driven perspective is more adequate, and cost factors are of much less importance. Second, the seeker‐source relationship is not significant to source choices. Third, the nature of information need, especially task importance, can modify Seekers' source choice decisions.
Modeling successful performance in Web searching
Authors: Aula Anne , Nordhausen Klaus
Published: August 2006

Several previous studies have measured differences in the information search success of novices and experts. However, the definitions of novices and experts have varied greatly between the studies, and so have the measures used for search success. Instead of dividing the searchers into different groups based on their expertise, we chose to model search success with task completion speed, TCS. Towards this goal, 22 participants performed three fact‐finding tasks and two broader tasks in an observational user study. In our model, there were two variables related to the Web experience of the participants. Other variables included, for example, the speed of query iteration, the length of the queries, the proportion of precise queries, and the speed of evaluating result documents. Our results showed that the variables related to Web experience had expected effects on TCS. The increase in the years of Web use was related to improvement in TCS in the broader tasks, whereas the less frequent Web use was related to a decrease in TCS in the fact‐finding tasks. Other variables having significant effects on TCS in either of the task types were the speed of composing queries, the average number of query terms per query, the proportion of precise queries, and the participants' own evaluation of their search skills. In addition to the statistical models, we present several qualitative findings of the participants' search strategies. These results give valuable insight into the successful strategies in Web search beyond the previous knowledge of the expert–novice differences.
Site‐Specific Labelling of Proteins with a Rigid Lanthanide‐Binding Tag
Authors: Su Xun‐Cheng , Huber Thomas , Dixon Nicholas E. , Otting Gottfried
Published: August 2006

This paper describes a generic method for the site‐specific attachment of lanthanide complexes to proteins through a disulfide bond. The method is demonstrated by the attachment of a lanthanide‐binding peptide tag to the single cysteine residue present in the N‐terminal DNA‐binding domain of the Escherichia coli arginine repressor. Complexes with Y3+, Tb3+, Dy3+, Ho3+, Er3+, Tm3+ and Yb3+ ions were formed and analysed by NMR spectroscopy. Large pseudocontact shifts and residual dipolar couplings were induced by the lanthanide‐binding tag in the protein NMR spectrum, a result indicating that the tag was rigidly attached to the protein. The axial components of the magnetic susceptibility anisotropy tensors determined for the different lanthanide ions were similarly but not identically oriented. A single tag with a single protein attachment site can provide different pseudocontact shifts from different magnetic susceptibility tensors and thus provide valuable nondegenerate long‐range structure information in the determination of 3D protein structures by NMR spectroscopy.
Paramagnetic Properties of the Halide‐Bound Derivatives of Oxidised Tyrosinase Investigated by 1H NMR Spectroscopy
Authors: Tepper Armand W. J. W. , Bubacco Luigi , Canters Gerard W.
Published: August 2006

The 1H NMR relaxation characteristics of the histidines in the oxidised type‐3 copper site of tyrosinase (Tymet) from the bacterium Streptomyces antibioticus in the halide‐bound forms (TymetX with X = F−, Cl−, Br−) have been determined and analysed. The 1H NMR spectra of the TymetX species display remarkably sharp, well‐resolved, paramagnetically shifted 1H signals, which originate from the protons of the six His residues coordinated to the two CuII ions in the type‐3 centre. From the temperature‐dependence of the 1H paramagnetic shifts the following values for the exchange‐coupling parameter −2J were determined: 260 (TymetF), 200 (TymetCl) and 162 cm−1 (TymetBr). The 1H T1 relaxation is dipolar in origin and correlates with the CuH distances. Electronic relaxation times τS derived from the 1H T1 data amount to about 10−11 s and follow the order TymetF>TymetCl>TymetBr. They are two orders of magnitude shorter than the τS values reported for mononuclear copper systems, in accordance with the sharpness of the 1H signals. The results corroborate the Cu2 bridging mode of the halide ions. On the basis of the measured hyperfine interaction constants for the ligand histidine nuclei, it is concluded that 70–80 % of the spin density in the excited triplet state resides on the two copper ions and the bridging atoms.
Complexes between Lithium Cation and Diphenylalkanes in the Gas Phase: The Pincer Effect
Authors: Gal Jean‐François , Maria Pierre‐Charles , Mó Otilia , Yáñez Manuel , Kuck Dietmar
Published: August 2006

The gas‐phase lithium cation basicities (LCB values, Gibbs free energies of binding) of α,ω‐diphenylalkanes Ph‐(CH2)n‐Ph (n=2, 3, or 7) and 1,1‐diphenylethane Ph‐CH(Me)‐Ph were investigated by means of Fourier‐transform ion cyclotron resonance (FTICR) mass spectrometry. Their structures, and those of the corresponding Li+complexes were optimized at the B3LYP/6‐31G(d) level and their relative stabilities calculated at the B3LYP/6‐311+G(3df,2p)//B3LYP/6‐31G(d) level. Whereas the most stable conformers of the free diphenylalkanes were found to adopt a completely stretched aliphatic chain connecting the two benzene rings, the most stable Li+complexes correspond to conformers in which the alkali metal cation interacts simultaneously with both benzene rings through the folding of the aliphatic chain (“pincer effect”). This chelation brings about a significant enhancement of the Li+binding enthalpies (LBE values), which were calculated to be approximately 75 kJ mol−1higher than those evaluated for conventional (singly coordinated) π complexes in which the metal cation interacts with only one of the benzene rings. The increase of the corresponding lithium cation basicities, however, (Gibbs free energies of Li+binding, LCB values) was calculated to be smaller by approximately 15 kJ mol−1as the pincer effect is entropically disfavored. The good agreement between the calculated LCB values, assuming a statistical distribution of the different conformers present in the gas phase, and the experimental LCB values measured by means of FTICR mass spectrometry are considered indirect evidence of the existence of the pincer effect.
Solvent Effects on the Thermal and Photochemical Reactions of 4′‐Iodo‐8‐methoxyflavylium and Their Consequences on the Coloring Phenomena Caused by Anthocyanins in Plants
Authors: Gomes Raquel , Parola A. Jorge , Lima João C. , Pina Fernando
Published: August 2006

The chemistry and photochemistry of the compound 4′‐iodo‐8‐methoxyflavylium tetrafluoroborate was studied in solvent mixtures of water and ethanol. The trans‐chalcone form (Ct) is always the most stable species at equilibrium. In particular, for the first time, Ct and not the flavylium cation is reported as the most stable species in mixtures containing water at pH 1.0. The rate of Ct formation as a function of the water content exhibits a bell‐shaped dependence, showing a maximum at approximately 50 % water. These trends are explained by a slower cis–trans isomerization in ethanol relative to that in water due to the expected stabilization in polar solvents of the zwitterionic intermediate; on the other hand, the decrease in the concentration of cis‐chalcone (Cc) in the pseudoequilibrium with increasing water content, gives rise to a decrease in the rate of Ct formation (kobs=kreal[Cc]). The hydration reaction was found to be much more efficient when water is present in low concentrations. This result has important consequences for the interpretation of the coloring phenomena caused by anthocyanins in plants, as well as for applications of flavylium compounds in the field of optical memories.
One‐Electron Oxidation Pathways during β‐Cyclodextrin‐Modified TiO2 Photocatalytic Reactions
Authors: Tachikawa Takashi , Tojo Sachiko , Fujitsuka Mamoru , Majima Tetsuro
Published: August 2006

The photocatalytic one‐electron oxidation reactions of aromatic sulfides using the carboxymethyl‐β‐cyclodextrin (CM‐β‐CD)‐modified TiO2 nanoparticles (TiO2/CM‐β‐CD) were investigated by using nano‐ and femtosecond transient absorption spectroscopies. The one‐electron oxidation processes of the substrate (S) by the valence band hole (hVB+) at the TiO2 surface and the trapped hole at the adsorption site of the CM‐β‐CD (hCD+) were examined. The transient absorption spectra and time traces observed for the charge carriers and the radical cation of S (S.+) revealed that the one‐electron oxidation reaction of S during the nano‐ and femtosecond laser flash photolyses of TiO2/CM‐β‐CD is significantly enhanced relative to bare TiO2. The kinetics of the decay and the dimerization processes between S.+s are discussed on the basis of the results obtained by the pulse radiolysis technique.
Relationship between Incoherent Excitation Energy Migration Processes and Molecular Structures in Zinc(II) Porphyrin Dendrimers
Authors: Cho Sung , Li Wei‐Shi , Yoon Min‐Chul , Ahn Tae Kyu , Jiang Dong‐Lin , Kim Jiwon , Aida Takuzo , Kim Dongho
Published: August 2006

Multiporphyrin dendrimers are among the most promising architectures to mimic the oxygenic light‐harvesting complex because of their structural similarities and synthetic convenience. The overall geometries of dendrimers are determined by the core structure, the type of dendron, and the number of generations of interior repeating units. The rigid core and bulky volume of exterior porphyrin units in multiporphyrin dendrimers give rise to well‐ordered three‐dimensional structures. As the number of generations of interior repeating units increases, however, the overall structures of dendrimers become disordered and randomized due to the flexibility of the repeating units. To reveal the relationship between molecular structure and processes of excitation‐energy migration in multiporphyrin dendrimers, we calculated the molecular structure and measured the time‐resolved transient absorption and fluorescence anisotropy decays for various hexaarylbenzene‐anchored polyester zinc(II) porphyrin dendrimers along with three types of porphyrin dendrons as references. We found that the congested two‐branched type dendrimers exhibit more efficient energy migration processes than one‐ or three‐branched type dendrimers because of multiple energy migration pathways, and the three‐dimensional packing efficiency of dendrimers strongly depends on the type of dendrons.
Individual Dissolution of Single‐Walled Carbon Nanotubes in Aqueous Solutions of Steroid or Sugar Compounds and Their Raman and Near‐IR Spectral Properties
Authors: Ishibashi Ayumi , Nakashima Naotoshi
Published: August 2006

The individual solubilization of single‐walled carbon nanotubes (SWNTs), achieved by using ten different anionic‐, zwitterionic‐, and nonionic‐steroid biosurfactants and three different sugar biosurfactants, was examined. Aqueous micelles of anionic cholate analogues, such as sodium cholate (SC), sodium deoxycholate (SDC), sodium taurocholate (STC), sodium taurodeoxycholate (STDC), sodium glycocholate (SGC), as well as N,N‐bis(3‐D‐gluconamidopropyl)cholamide (BIGCHAP) and N,N‐bis(3‐D‐gluconamidopropyl)deoxycholamide (deoxy‐BIGCHAP), exhibited good abilities to dissolve the SWNTs individually. Aqueous micelles of nonionic biosurfactants, such as sucrose monocholate (SMC), n‐octyl‐β‐D‐glucoside (OG), n‐decyl‐β‐D‐maltoside (DM), and n‐decanoyl‐N‐methylglucamide (MEGA‐10), could dissolve the SWNTs, however, the solubilization abilities were weaker than those of the anionic cholate analogues. In sharp contrast, the solubilization abilities of the zwitterionic micelles of 3‐[(3‐cholamidopropyl)dimethylammonio]propanesulfonic acid (CHAPS) and 3‐[(3‐cholamidopropyl)dimethylammonio]‐2‐hydroxypropanesulfonic acid (CHAPSO) were very low, and almost zero for OG. It is evident that the chemical structures, in particular the substituent groups of the surfactants, play an important role in the solubilization of SWNTs. The near‐IR photoluminescence behaviors of the SWNTs dissolved in aqueous micelles and in 1 mM biosurfactants were investigated. The chirality indices of the SWNTs dissolved in these solutions depend on the chemical structures of the biosurfactants. The Raman spectra of the SWNTs dissolved in a 1 mM solution of SC suggest the selective extraction of the metallic SWNTs. Finally, a possible solubilization mechanism using steroid surfactants is described. The SWNTs dissolved individually in water‐containing biocompounds are useful in many areas of nano‐ and materials chemistry.
Novel Properties from Experimental Charge Densities: An Application to the Zwitterionic Neurotransmitter Taurine
Authors: Waller M. P. , Howard S. T. , Platts J. A. , Piltz R. O. , Willock D. J. , Hibbs D. E.
Published: August 2006

The charge distribution of taurine (2‐aminoethane‐sulfonic acid) is revisited by using an orbital‐based method that describes the density in a fixed molecular orbital basis with variable orbital occupation numbers. A new neutron data set is also employed to explore whether this improves the deconvolution of thermal motion and charge density. A range of molecular properties that are novel for experimentally determined charge densities are computed, including Weinhold population analysis, Mayer bond orders, and local kinetic energy densities, in addition to charge topological analysis and quantum theory of atoms‐in‐molecules (QTAIM) integrated properties. The ease with which a distributed multipole analysis can be performed on the fitted density matrix makes it straightforward to compute molecular moments, the lattice energy, and the electrostatic interaction energies of molecules removed from the crystal. Results are compared with high‐level (QCISD) gas‐phase calculations and band structure calculations employing density functional theory. Finally, the avenues available for extending the range of molecular properties that can be calculated from experimental charge densities still further using this approach are discussed.
Density Functional Theory Study of 10‐Atom Germanium Clusters: Effect of Electron Count on Cluster Geometry.
Authors: King R. B. , Silaghi‐Dumitrescu I. , Uja M. M.
Published: August 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.
Lanthanoid(III) Oxide Chloride Oxoselenates(IV): A Fascinating Class of Multinary Compounds.
Authors: Schleid Thomas , Wontcheu Joseph
Published: August 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.
Three Structure Types for Strontium Copper(I) Lanthanide(III) Selenides SrCuLnSe3 (Ln: La, Gd, Lu).
Authors: Strobel Sabine , Schleid Thomas
Published: August 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 New Environment‐Friendly Yellow Pigments.
Authors: Furukawa Shinya , Masui Toshiyuki , Imanaka Nobuhito
Published: August 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 a New NASICON‐Type Blue Luminescent Material.
Authors: Masui Toshiyuki , Koyabu Kazuhiko , Tamura Shinji , Imanaka Nobuhito
Published: August 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 New Green Emitting Phosphors Based on Rare Earth Oxycarbonates.
Authors: Koyabu Kazuhiko , Mayama Yuhei , Masui Toshiyuki , Imanaka Nobuhito
Published: August 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 Type of Potassium Ion Conducting Solid Based on Lanthanum Oxysulfate.
Authors: Yamamoto Shohei , Tamura Shinji , Imanaka Nobuhito
Published: August 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.
Anion Composition Control and Magnetic Short‐ and Long‐Range Order in Transition Metal Oxide Hydrides.
Authors: Bowman A. , Claridge J. B. , Rosseinsky M. J.
Published: August 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.
Structure and Physical Properties of Ternary Uranium Transition‐Metal Antimonides U3MSb5 (M: Zr, Hf, Nb).
Authors: Tkachuk Andriy V. , Muirhead Craig P. T. , Mar Arthur
Published: August 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.
System Ln—Fe—O (Ln: Ho, Er): Thermodynamic Properties of Ternary Oxides Using Differential Scanning Calorimetry and Solid‐State Electrochemical Cells.
Authors: Parida S. C. , Rakshit S. K. , Dash S. , Singh Ziley , Sen B. K. , Venugopal V.
Published: August 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.
Primary Reaction Steps of Al‐13 Clusters in an HCl Atmosphere: Snapshots of the Dissolution of a Base Metal.
Authors: Burgert Ralf , Stokes Sarah T. , Bowen Kit H. , Schnoeckel Hansgeorg
Published: August 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.
On the Possibility of Metal Borides for Hydrodesulfurization.
Authors: Skrabalak Sara E. , Suslick Kenneth S.
Published: August 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 Metathesis Reactions of [SNS][SbF6] and [SN][AsF6] with Li[Al(OC(CF3)3)4] in Liquid SO2.
Authors: Knapp Carsten , Mailman Aaron , Nikiforov Grigory B. , Passmore Jack
Published: August 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.
Are Ionic Liquids Really a Boon for the Synthesis of Inorganic Materials? A General Method for the Fabrication of Nanosized Metal Fluorides.
Authors: Jacob David S. , Bitton Liora , Grinblat Judith , Felner Israel , Koltypin Yuri , Gedanken Aharon
Published: August 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 Crystal Structure of Li4BH4(NH2)3.
Authors: Chater Philip A. , David William I. F. , Johnson Simon R. , Edwards Peter P. , Anderson Paul A.
Published: August 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.
CuInS2 Films for Photovoltaic Applications Deposited by a Low‐Cost Method.
Authors: Todorov T. , Cordoncillo E. , Sanchez‐Royo J. F. , Carda J. , Escribano P.
Published: August 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 Hydrogenation of Diaryl‐Substituted α,β‐Unsaturated Nitriles.
Authors: Wabnitz Tobias C. , Rizzo Simona , Goette Carsten , Buschauer Armin , Benincori Tiziana , Reiser Oliver
Published: August 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.
Functionalized Chiral Ionic Liquids as Highly Efficient Asymmetric Organocatalysts for Michael Addition to Nitroolefins.
Authors: Luo Sanzhong , Mi Xueling , Zhang Long , Liu Song , Xu Hui , Cheng Jin‐Pei
Published: August 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.
4‐trans‐Amino‐Proline Based Di‐ and Tetrapeptides as Organic Catalysts for Asymmetric C—C Bond Formation Reactions.
Authors: Tsogoeva Svetlana B. , Jagtap Sunil B. , Ardemasova Zoya A.
Published: August 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 Cyanosilylation of Aldehydes Catalyzed by a Diastereomeric Mixture of Atropisomeric Thioureas.
Authors: Steele Rebecca M. , Monti Chiara , Gennari Cesare , Piarulli Umberto , Andreoli Federico , Vanthuyne Nicolas , Roussel Christian
Published: August 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 Silanes via Asymmetric Hydrosilylation with Catalytic CuH.
Authors: Lipshutz Bruce H. , Tanaka Naoki , Taft Benjamin R. , Lee Ching‐Tien
Published: August 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.
Rhodium‐Catalyzed Asymmetric Cyclization/Hydroboration of 1,6‐Enynes.
Authors: Kinder Robert E. , Widenhoefer Ross A.
Published: August 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 Diastereoselective Asymmetric Mannich Reactions of 1,3‐Dicarbonyls with Acyl Imines.
Authors: Ting Amal , Lou Sha , Schaus Scott E.
Published: August 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.
Asymmetric Synthesis of Trifluoromethylphenyl Cyclopropanes Catalyzed by Chiral Metalloporphyrins.
Authors: Le Maux Paul , Juillard Sandrine , Simonneaux Gerard
Published: August 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 Epoxidation of N‐Enoylsultams with Different Chiral Sultams as Auxiliaries.
Authors: Zhang Shu‐Jia , Chen Yong‐Kang , Li Hui‐Ming , Huang Wei‐Yang , Rogatchov Viktor , Metz Peter
Published: August 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.
Fast Aqueous/Organic Hydrogenation of Arenes, Olefins and Carbonyl Compounds by Poly(N‐vinylpyrrolidone)‐Ru as Amphiphilic Microreactor System.
Authors: Lu Fang , Liu Jing , Xu Jie
Published: August 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.
Microwave‐Assisted Reduction of Acetophenones Using Ni—Al Alloy in Water.
Authors: Miyazawa Akira , Tashiro Masashi , Prakash G. K. Surya , Olah George A.
Published: August 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.
Rapid Conversion of Hindered Arylsulfonates to Alkyl Chlorides with Retention of Configuration.
Authors: Lepore Salvatore D. , Bhunia Anjan K. , Mondal Deboprosad , Cohn Pamela C. , Lefkowitz Craig
Published: August 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 Tunable Aromatic Bromination Method Using Alkyl Bromides and Sodium Hybride in DMSO.
Authors: Guo MaoJun , Varady Laszlo , Fokas Demosthenes , Baldino Carmen , Yu Libing
Published: August 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.
Sodium Nitrite Catalyzed Oxybromination of Aromatic Compounds and Aryl Ketones with a Combination of Hydrobromic Acid and Molecular Oxygen under Mild Conditions.
Authors: Zhang Guofu , Liu Renhua , Xu Qing , Ma Lixin , Liang Xinmiao
Published: August 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.
Stereospecific C—S Bond Formation from Chiral Tertiary Alcohols by Quinone‐Mediated Oxidation—Reduction Condensation Using Alkyl Diphenylphosphinites and Its Application to the Synthesis of a Chiral Tertiary Thiol.
Authors: Ikegai Kazuhiro , Pluempanupat Wanchai , Mukaiyama Teruaki
Published: August 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 Fluorapatite Catalyzed N‐Arylation of Heterocycles with Bromo and Iodoarenes.
Authors: Kantam M. Lakshmi , Venkanna G. T. , Sridhar Ch. , Kumar K. B. Shiva
Published: August 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 the Catalytic Conditions on the Selectivity of the Pd‐Catalyzed Heck Arylation of Acrolein Derivatives.
Authors: Noel Sebastien , Djakovitch Laurent , Pinel Catherine
Published: August 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.
Lanthanoid Complexes of the Monovacant Dawson Polyoxotungstate [α1‐P2W17O61] 10‐ as Selective and Recoverable Lewis Acid Catalysts.
Authors: Boglio Cecile , Lemiere Gilles , Hasenknopf Bernold , Thorimbert Serge , Lacote Emmanuel , Malacria Max
Published: August 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 4‐Nitrophenyl Sulfones and Application in the Modified Julia Olefination.
Authors: Mirk Daniela , Grassot Jean‐Marie , Zhu Jieping
Published: August 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.
Organic Solvent Nanofiltration in Asymmetric Hydrogenation: Enhancement of Enantioselectivity and Catalyst Stability by Ionic Liquids.
Authors: Wong Hau‐To , See‐Toh Yoong Hsiang , Ferreira Frederico Castelo , Crook Robert , Livingston Andrew G.
Published: August 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 Addition of Secondary Amines to Carbodiimides by a Half‐Sandwich Yttrium Complex: An Efficient Route to N,N′,N′′,N′′‐Tetrasubstituted Guanidines.
Authors: Zhang Wen‐Xiong , Nishiura Masayoshi , Hou Zhaomin
Published: August 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/Lewis Acid Catalyzed Reactions of Bicyclic Hydrazines with Organostannanes: A General Methodology for the Stereoselective Synthesis of 3,4‐Disubstituted Cyclopentenes.
Authors: Sajisha V. S. , Radhakrishnan K. V.
Published: August 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.
Development of Drug Intermediates by Using Direct Organocatalytic Multi‐Component Reactions.
Authors: Ramachary Dhevalapally B. , Kishor M. , Reddy G. Babul
Published: August 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 Diastereoselective Synthesis of Bicyclo[3.2.1]octenones Through Phosphine‐Mediated Condensations of 1,4‐Dien‐3‐ones.
Authors: McDougal Nolan T. , Schaus Scott E.
Published: August 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 Addition of Organoboronates to 1,2‐Dienes and the Corresponding Three‐Component Reaction with an Alkyne.
Authors: Takahashi Go , Shirakawa Eiji , Tsuchimoto Teruhisa , Kawakami Yusuke
Published: August 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.
Development of Nonproprietary Phosphine Ligands for the Pd‐Catalyzed Amination Reaction.
Authors: Singer Robert A. , Dore Michael , Sieser Janice E. , Berliner Martin A.
Published: August 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 Organic Activators for the Enantioselective Reduction of Aromatic Imines with Trichlorosilane.
Authors: Onomura Osamu , Kouchi Yoshimi , Iwasaki Fumiaki , Matsumura Yoshihiro
Published: August 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.
Asymmetric Aza‐Morita—Baylis—Hillman Reaction of N‐Sulfonated Imines with Activated Olefins Catalyzed by Chiral Phosphine Lewis Bases Bearing Multiple Phenol Groups.
Authors: Liu Ying‐Hao , Chen Lian‐Hui , Shi Min
Published: August 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 Efficient One‐Pot Three‐Component Mannich Reaction in Water Catalyzed by Heteropoly Acids.
Authors: Azizi Najmodin , Torkiyan Lalleh , Saidi Mohammad R.
Published: August 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.
Regioselective [5,5]‐Sigmatropic Rearrangement Reactions of Aryl Hydrazides.
Authors: Kang Hong‐Min , Lim Young‐Kwan , Shin In‐Jee , Kim Hee‐Yeon , Cho Cheon‐Gyu
Published: August 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.
Ruthenium‐Catalyzed Rearrangement of cis‐1‐Ethynyl‐2‐vinyloxiranes to Substituted Phenols.
Authors: Maddirala Shambabu Joseph , Odedra Arjan , Taduri Bhanu Pratap , Liu Rai‐Shung
Published: August 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, Carbonyl‐Ene‐Type Reactions: Selective for α‐Olefins and More Efficient with Electron‐Rich Aldehydes.
Authors: Ho Chun‐Yu , Ng Sze‐Sze , Jamison Timothy F.
Published: August 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.
Dicationic (BINAP)Palladium‐Catalyzed Enantioselective Aldol Reaction of Aldehydes with a Silyl Enol Ether: A Simplified Practical Procedure.
Authors: Kiyooka Syun‐ichi , Hosokawa Satomi , Tsukasa Sayaka
Published: August 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 Regioselective Friedel—Crafts Reactions of Electron‐Rich Aromatic Compounds with Pyruvate Catalyzed by Lewis Acid‐Base: Efficient Synthesis of Pesticide Cycloprothrin.
Authors: Si Yu‐Gui , Chen Jun , Li Fan , Li Jin‐Hua , Qin Ye‐Jun , Jiang Biao
Published: August 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.
Cannizzaro‐Type Disproportionation of Aromatic Aldehydes to Amides and Alcohols by Using Either a Stoichiometric Amount or a Catalytic Amount of Lanthanoid Compounds.
Authors: Zhang Lijun , Wang Shaowu , Zhou Shuangliu , Yang Gaosheng , Sheng Enhong
Published: August 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.
Ring Opening of Aziridines by Aromatic Thiols Followed by Amino‐Substitution.
Authors: Ingebrigtsen Truls , Lejon Tore
Published: August 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 SAR of α‐Sulfonylcarboxylic Acids as Potent Matrix Metalloproteinase Inhibitors.
Authors: Zhang Yue‐Mei , Fan Xiaodong , Xiang Bangping , Chakravarty Devraj , Scannevin Robert , Burke Sharon , Karnachi Prabha , Rhodes Kenneth , Jackson Paul
Published: August 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 Bisphosphine‐Containing Polymers and Their Applications as Bidentate Ligands for Nickel(0)‐Catalyzed Cross‐Coupling Reactions.
Authors: Lu Yong , Plocher Elizabeth , Hu Qiao‐Sheng
Published: August 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‐Less and Fluoride‐Free Hiyama Reaction of Arylsiloxanes with Aryl Bromides and Chlorides Promoted by Sodium Hydroxide: A Useful Protocol for Palladium Recycling and Product Isolation.
Authors: Alacid Emilio , Najera Carmen
Published: August 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.
Dearomatizing Anionic Cyclization of 1‐Lithio‐4‐naphthyl‐1,3‐butadienes Leading to the Formation of Spiro Cyclopentadiene Derivatives.
Authors: Wang Zhihui , Xi Zhenfeng
Published: August 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.
AuI‐Catalyzed Cycloisomerization of 1,5‐Enynes Bearing a Propargylic Acetate: Formation of Unexpected Bicyclo[3.1.0]hexene.
Authors: Marion Nicolas , de Fremont Pierre , Lemiere Gilles , Stevens Edwin D. , Fensterbank Louis , Malacria Max , Nolan Steven P.
Published: August 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.
Intermolecular [4 + 2] Cycloadditions of a Reactive Cyclopentadienone.
Authors: Harmata Michael , Gomes Maria G.
Published: August 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.
C64H4: Production, Isolation, and Structural Characterizations of a Stable Unconventional Fulleride.
Authors: Wang Chun‐Ru , Shi Zhi‐Qiang , Wan Li‐Jun , Lu Xin , Dunsch Lothar , Shu Chun‐Ying , Tang Ya‐Lin , Shinohara Hisanori
Published: August 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 Regioselective Transformation of Alkenyl Bromides into α‐Bromoaziridines and α‐Bromohydrazones.
Authors: Krasnova Larissa B. , Yudin Andrei K.
Published: August 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‐Catalyzed Reaction Cascade: Direct Conversion of Alkynes into N‐Sulfonylazetidin‐2‐imines.
Authors: Whiting Matthew , Fokin Valery V.
Published: August 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 5‐Endo Electrophilic Cyclization of Unsaturated Amides with tBuOCl/I2.
Authors: Tang Yu , Li Chaozhong
Published: August 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 Unusual Palladium‐Catalyzed Carbonylative Cyclization of β‐Bromovinyl Aldehydes Leading to Lactones.
Authors: Cho Chan Sik , Shim Hyung Sup
Published: August 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 Ring Transformation of 1,2,3‐Thiadiazoles into Furan‐2‐carbothioamides.
Authors: Kropotina Polina E. , Dyudya Lyudmila V. , Glukhareva Tatiana V. , Morzherin Yury Yu. , Bakulev Vasiliy A. , Van Hecke Kristof , Van Meervelt Luc , Dehaen Wim
Published: August 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.
Benzo[b]thiophene‐2‐carboxamides and Benzo[b]furan‐2‐carboxamides Are Potent Antagonists of the Human H3‐Receptor.
Authors: Peschke Bernd , Bak Sonja , Hohlweg Rolf , Nielsen Rita , Viuff Dorthe , Rimvall Karin
Published: August 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.
Identification of 2‐Acylaminothiophene‐3‐carboxamides as Potent Inhibitors of FLT3.
Authors: Patch Raymond J. , Baumann Christian A. , Liu Jian , Gibbs Alan C. , Ott Heidi , Lattanze Jennifer , Player Mark R.
Published: August 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.
Microwave‐Assisted Ring‐Closing Metathesis of Diallylamines: A Rapid Synthesis of Pyrrole and Pyrroline Derivatives.
Authors: Yang Qian , Li Xin‐Yong , Wu Hong , Xiao Wen‐Jing
Published: August 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 Highly Substituted γ‐Lactams by the [3 + 2] Annulation of α‐Siloxy Allylic Silanes with Chlorosulfonyl Isocyanate.
Authors: Romero Antonio , Woerpel K. A.
Published: August 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.
Rhodium(I)‐Catalyzed Nucleophilic Ring‐Opening Reactions of Oxabicyclo Adducts Derived from the [4 + 2]‐Cycloaddition of 2‐Imido‐Substituted Furans.
Authors: Padwa Albert , Wang Qiu
Published: August 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.
Rhodium‐Catalyzed Asymmetric Addition of Aryl‐ and Alkenylboronic Acids to Isatins.
Authors: Shintani Ryo , Inoue Mitsunori , Hayashi Tamio
Published: August 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 C—H Arylation of SEM‐Protected Azoles with Palladium Complexes of NHCs and Phosphines.
Authors: Toure B. Barry , Lane Benjamin S. , Sames Dalibor
Published: August 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 Synthesis of Bipyrroles Using Phenyliodine Bis(trifluoroacetate) with Bromotrimethylsilane.
Authors: Dohi Toshifumi , Morimoto Koji , Maruyama Akinobu , Kita Yasuyuki
Published: August 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 Synthesis of 2‐(Aminomethyl)indoles from Ethyl 3‐(o‐Trifluoroacetamidophenyl)‐1‐propargyl Carbonate.
Authors: Ambrogio Ilaria , Cacchi Sandro , Fabrizi Giancarlo
Published: August 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 Friedel—Crafts Alkylation of Indoles with Nitroalkenes Catalyzed by Bifunctional Tridentate Bis(oxazoline)—Zn(II) Complex.
Authors: Lu Shao‐Feng , Du Da‐Ming , Xu Jiaxi
Published: August 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.
Kinesin Spindle Protein (KSP) Inhibitors. Part 4. Structure‐Based Design of 5‐Alkylamino‐3,5‐diaryl‐4,5‐dihydropyrazoles as Potent, Water‐Soluble Inhibitors of the Mitotic Kinesin KSP.
Authors: Cox Christopher D. , et al. et al.
Published: August 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 Easy Approach to the Synthesis of 2,5‐Disubstituted and 2,4,5‐Trisubstituted 1,3‐Oxazoles. The Reaction of 1‐(Methylthio)acetone with Nitriles.
Authors: Herrera Antonio , Martinez‐Alvarez Roberto , Ramiro Pedro , Molero Dolores , Almy John
Published: August 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 Efficient Approach to 4‐Ethoxy‐5,6‐dihydro‐6,6‐disubstituted Pyran‐2‐ones Using a Combinational Lewis Acid‐Base System.
Authors: Liu Jie , Li Xing , Wang Jun , Feng Xiaoming
Published: August 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.