bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: Asymmetric Reactions with Chiral Lewis Acid Catalysts
Authors: MARUOKA K. , YAMAMOTO H. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Effective 1,5‐Asymmetric Induction in Tin(IV) Chloride Promoted Reactions Between Aldehydes and (4‐Alkoxy‐2‐alkenyl)tributylstannanes
Authors: MCNEILL A. H. , THOMAS E. J. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Photochemistry of the 9‐Hydroxyxanthenyl Radical in the Laser‐Jet: Evidence for Photochemically Induced, Regioselective Radical Coupling.
Authors: ADAM W. , KITA F. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Minute Synthesis of Electrophilic Alkenes Under Microwave Irradiation.
Authors: ABDALLAH‐EL AYOUBI S. , TEXIER‐BOULLET F. , HAMELIN J. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Horseradish Peroxidase‐Catalyzed Oxidative Coupling of Methyl Sinapate to Give Diastereoisomeric Spiro Dimers.
Authors: SETAELAE H. , PAJUNEN A. , KILPELAEINEN I. , BRUNOW G. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Reactions of 1‐Aza‐3‐ethylbicyclo(1.1.0)butane with Electrophiles. A Facile Entry into New, N‐Substituted 3‐Ethylideneazetidines and 2‐ Azetines.
Authors: MARCHAND A. P. , RAJAGOPAL D. , BOTT S. G. , ARCHIBALD T. G. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Synthesis of Methyl 3‐Aryl‐4‐trifluoromethyl‐1H‐pyrrole‐2‐carboxylates.
Authors: LA PORTA P. , CAPUZZI L. , BETTARINI F. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Synthesis of Benzocarbazoloquinones via Oxidative Cyclization.
Authors: RAJESWARAN W. G. , SRINIVASAN P. C. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Bifunctional Antitumor Agents: Pyrrolo(9,10)phenanthrenes as Intercalative Drug Delivery Vehicles.
Authors: JONES G. B. , MATHEWS J. E. , BANNER W. K. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Synthesis and Antifilarial Activity of Pyrido(3,4‐b)imidazo(1,2‐c′) quinazolo(4,5‐e)/(4,5‐g)indoles.
Authors: AGARWAL A. , AGARWAL S. K. , SINGH S. N. , FATMA N. , MURTHY P. K. , CHATTERJEE R. K. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: An Epimer of 5′‐Noraristeromycin and Its Antiviral Properties.
Authors: SIDDIQI S. M. , CHEN X. , SCHNELLER S. W. , IKEDA S. , SNOECK R. , ANDREI G. , BALZARINI J. , DE CLERCQ E. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Enantiomerically Pure 7‐Oxabicyclo(2.2.1)hept‐5‐en‐2‐yl Derivatives (“ Naked Sugars”) as Synthetic Intermediates. Part 25. Total Asymmetric Synthesis of 3‐Amino‐3‐deoxy‐L‐talose (XI) and Derivatives.
Authors: HUENENBERGER P. , ALLEMANN S. , VOGEL P. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Route from Glycals to Mannose β‐Glycosides.
Authors: LIU K. K.‐C. , DANISHEFSKY S. J. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: A Direct Route from 1α,2α‐Anhydroglucose Derivatives to . alpha.‐Glucosides.
Authors: LIU K. K.‐C. , DANISHEFSKY S. J. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Synthesis of Dinucleoside Phosphoramidimidates.
Authors: BJERGARDE K. , DAHL O. , CARUTHERS M. H. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Intramolecular Oxidative Coupling of Aromatic Compounds. Part 6. An Efficient Synthesis of Some Dibenzocyclooctene Lignans.
Authors: CARROLL A. R. , TAYLOR W. C. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Studies Directed Toward the Synthesis of Phomenoic Acid. Part 1. Enantioselective Synthesis of the C(1)‐to‐C(6) Segment.
Authors: HASSAN H. H. A. M. , TAMM C. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Bottom‐Up Strategy to Obtain Luminescent and Redox‐Active Metal Complexes of Nanometric Dimensions.
Authors: BALZANI V. , CAMPAGNA S. , DENTI G. , JURIS A. , SERRONI S. , VENTURI M. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Transport Characteristics of Microemulsions.
Authors: SINEVA A. V. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: p‐Triallylcalix(4)arene: The Final Member of the p‐Allylcalix(4)arenes.
Authors: HO Z. , KU M. , SHU C. , LIN L. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Design and Synthesis of 1,4‐Dihydropyridine Derivatives as BACE‐1 Inhibitors.
Authors: Choi Soo‐Jeong , Cho Joong‐Heui , Im Isak , Lee So‐Deok , Jang Ji‐Yeong , Oh Yu‐Min , Jung Yong‐Keun , Jeon Eun‐Seok , Kim Yong‐Chul 
Published: September 2010

AbstractUsing structure‐based drug design based on computer‐aided molecular docking, an isophthalamide moiety in a known BACE‐1 inhibitor is replaced by the 1,4‐dihydropyridine (DHP) skeleton with assumed enhanced permeability through the blood‐brain barrier.
Radioisotope tracer study in trickle bed reactors
Authors: Nigam Krishna Deo Prasad , Saroha Anil Kumar , Kundu Arunabha , Pant Harish Jagat 
Published: September 2010

AbstractThe residence time distribution (RTD) of liquid phase in trickle bed reactors has been measured for air‐water system using radioisotope tracer technique. Experiments were carried out in a glass column of internal diameter of 0.152 m packed with glass beads and actual catalyst particles of two different shapes. From the measured RTD curves, mean residence time of liquid was calculated and used to estimate liquid holdup. The axial dispersion model was used to simulate the experimental data and estimate mixing index, ie. Peclet number. The effect of liquid and gas flow rates on total liquid holdup and Peclet number has been investigated. Results of the study indicated that shape of the packing has significant effect on holdup and axial dispersion. Bodenstein number has been correlated to Reynolds number, Galileo number, shape and size of the packing.
Numerical simulation of viscous fingering of shear‐thinning fluids
Authors: Singh Brajeesh K. , Azaiez Jalel 
Published: September 2010

AbstractThe viscous fingering instability of miscible shear‐thinning fluids has been examined using a pseudo‐spectral numerical technique based on the Hartley transform. The instability was studied for a flow in a rectilinear Hele‐Shaw cell, and the shear‐thinning character of the fluids has been modelied using the Carreau equation. New mechanisms of viscous fingering not previously observed in the case of similar Newtonian flow displacements have been identified. These mechanisms, which are reminiscent of the fractal patterns observed in experimental studies, were interpreted in terms of the velocity‐dependent mobility of the flow.
Further developments in the new approach to boundary condition iteration in optimal control
Authors: Luus Rein 
Published: September 2010

AbstractIn solving the boundary value problem resulting from the use of Pontryagin's maximum principle, a transformation matrix is used to relate the sensitivity of the final state to the initial state. This avoids the need to solve the (n × n) differential equation to give the transition matrix, and yields very rapid convergence to the optimum. To ensure convergence, iterative dynamic programming (IDP) is used for a number of passes to yield good starting conditions for this boundary condition iteration procedure. Clipping technique is used to handle constraints on control. Five optimal control problems are used to illustrate and to test the procedure.
Synthesis, structure and conformation of 1,3‐difluorotetraphenyl benzene
Authors: Zi‐Rong Zheng , Yin‐Ming Pan , Wei‐Guo Liu , Zhen‐Wei Huan 
Published: September 2010

AbstractThe compound trifluoroiodomethane can be activated to react with the electron donor, 1,4‐dilithiotetraphenyl butadiene, by means of electron transfer catalysis (ETC). The structure of the product, 1,3‐difluorotetraphenyl,benzene (1), was determined by MS, NMR, and X‐ray single crystal diffraction. The conformations of compound 1 and its derivatives were analyized by molecular mechanics.
Asymmetric Meerwein‐Ponndorf‐Verley reduction catalyzed by a new type of chiral binaphthol‐samarium complex
Authors: Zong‐Biao Ding , Ke‐Jun Cheng , Shi‐Hui Wu 
Published: September 2010

AbstractA new type of chiral 1,1′‐binaphthol(BINOL) derived samarium complex, prepared from (R)‐or (S)‐BINOL and SmCl3, serves as an enantioselective catalyst for the Meerwein‐Ponndorf‐Verley (MPV) reduction in the presence of Molecular Sieves 4Å(MS 4Å). Moderate enantioselectivity was obtained. Kinetic studies show slight decrease of the enantiomeric excess with the conversion.
The eigenenergies for 3S excited states of the helium atom with CFPHGLF method
Authors: Wang Yi‐Xuan , Deng Cong‐Hao 
Published: September 2010

AbstractThe matrix elements of the correlation function between symmetric potential harmonics were first simplified into the analytical summation of the grand angular momentum. The correlation‐function potential‐harmonic and generalized Laguerre function method (CFPHGLF) proposed by us recently was then applied to directly solve the Schrödinger equation for n3S(n=2–5) excited states of the helium atom. With only 12 PHs, the convergent eigenenergies of 23S, 33S, 43S and 53S states were 2.17427, 2.06849, 2.03644, 2.02257 Eh, respectively. The errors only were 0.00096, 0.00020, 0.00007, 0.00005 Eh, when compared with the exact Hylleraas variational results respectively.
Synthesis, structure and characterization of binuclear copper(II) complexes
Authors: Yang Rui‐Na , Xue Baeyu , Wang Dong‐Mei , Jin Dou‐Man , Chen Jun , Li Ming‐Xing 
Published: September 2010

AbstractAt room temperature, dibenzoyl peroxide undergoes oxidative addition reaction with metallic copper powder and pyridine N‐oxide (triphenylphosphine oxide or 2,9‐dimethyl‐4,7‐diphenyl‐1, 10‐phenanthrolin) which affords the last products as binuclear copper(II) complexes, [Cu(C5H5NO)‐(C6H5COO)2]2(1), [Cu(OPPh3)(C6H5COO)2]2(2) and [Cu(C6H5COO)(C26H20N2)](3, C26H20N2 is 2,9‐dimethyl‐4,7‐diphenyl‐l,l∼phenanthrolin). The structure of the Complexes were characterized by elemental analyses. IR spectra, TGDTA and magnetic property. Crystals(1) are triclinic, space group P1, a=0.92617(36), b=1.06973(17), c=1.08813(29) nm, a=59.60(2)°, β=74.83(3)°, γ=72.80(2)°, V=0.880 nm3, Dc = 1.520 g/cm3. Z=1, R=0.044, R,=0.048, Mr=805.78, 3477 reflections with I > 3o(I). Esch copper(II) ion is coordinated by two bridging bidentate benzoate ligands and one pyridine N‐oxide or triphenylphosphine oxide to form dimeric binuclear molecules. The structure of the compound(1) shows a clear centre of symmetry.
Transesterification catalyzed by samarium tri‐2‐propoxide
Authors: Fu Xiao‐Lin , Wu Shi‐Hui 
Published: September 2010

AbstractA facile method for transesterification was reported. Under catalysis by samarium tri‐2‐propoxide tbe yields of transesterification are good to excellent, and this reaction has surprising selectivity and mildness due to the neutral condition during the reaction.
Syntheses and characterization of the noble‐metal substituted heptadecatungstodiarsenates
Authors: Jin Song‐Lin , Liu Hui‐Zhang , Shen Lan , Li Pei , Qiu De‐Ren , Xie Gao‐Yang , Chen Shi‐Ming 
Published: September 2010

AbstractFour Dawson type heteropolyoxotungstates substituted by noble metals with the general Formula (TBA)u [As2W17M(OH2)O61], where M=PdII, RuIII, IrIV and PtIV, are prepared by filling the vacant site of the lacunary precursor α2‐K10As2W17O61. UV‐vis and IR spectra are similar to the other transition metal substituted Dawson type tungstodiarsenates. EPR result provides direct evidence to identify the presence of noble metal cation. Electrochemical behavior investigated by cyclic voltammetry in acetonitrile displays four reversible one‐electron redox couples attributed to the W(VI→V) process of tungsten‐oxo framework.
Studies on the diterpenoid constituents from Rabdosia angustifolia
Authors: Zhang Rong‐Ping , Sun Han‐Dong 
Published: September 2010

AbstractTwo new ent‐kaurene diterpenoids, angustifolin B and natural hydrogen‐bonded 1:1 complex, angustifolin C, as well as four known diterpenoids, angustifolin, isodonal, sodoponin, tri‐chorabdal B, were isolated from the leaves of Rabdosia angustifolia.
Synthesis of dimeric estradiol enzyme model containing imidazolyl and study on its catalytic efficiency in hydrolysis of carboxylates and phosphates
Authors: Yan Jia‐Ming , Xie Ru‐Gang , Zhao Hua‐Ming , Wu De‐Xian , Xia Ping‐Fang 
Published: September 2010

AbstractDimeric estradiol enzyme model (2) was synthesized by etherification of 2,4‐bis(N‐imidazolylmethyl)‐17β‐estradiol (1) with 1,3‐dibromopropane in the presence of anhydrous K2CO3. Hydrolysis of carboxylates and phosphates catalyzed by the model showed Michaelis‐Menten kinetic behavior. Hydrophobic interaction between the model and ester accelerates the hydrolysis markedly, rate enhancement of up to 65 and 285 fold, relative to imidazole, is observed.
A study on bonding and energetic aspect of the Fe‐Si binary system
Authors: Long Xiang‐Yun , Chacon Garardo , Zheng Chong 
Published: September 2010

AbstractWe have studied the electronic, bonding and energetic characteristics of the Fe‐Si bi‐nary system using the tight‐bonding extended Huckel method. Among the Fe‐Si binary compounds, FeSi has the most symmetric geometric arrangement in the crystal structure. It also possesses the largest cohesive energy per atom. This correlates to the fact that FeSi the most stable congruently‐melting compound in the bulk phase diagram. An estimate of interaction energies between different atoms is also given.
Synthesis and photochromism of dimers of 4,5‐diaryl‐2‐(2,5‐dimethylthiophen‐3‐yl)imidazolyl
Authors: Bai Jin‐Quan , Han Xiao‐Chun , Wang Yong‐Mei , Meng Ji‐Ben 
Published: September 2010

Abstract4,5‐Diphenyl, 4,5‐di(4‐methylphenyl), 4,5‐di(4‐methoxyphenyl)‐2‐(2,5‐dimethylthiophen‐3‐yl)imidazoles were synthesized. Oxidation of the obtained imidazoles with potassium ferricyanide in water‐alcohol solution of alkali gave the corresponding dimers. The structures were characterized by IR, 1H NMR, mass spectroscopy and elemental analysis. The dimers showed photochromism in solution on irradiation.
Synthesis of affinity column of phosphatidylinositol‐3,4‐diphosphate
Authors: Ozaki Shoichiro , Kong Xiang‐Zheng , Watanabe Yutaka , Ogasawara Tomio 
Published: September 2010

AbstractPhosphatidylinositol polyphosphates (PIPx) are related with tyrosine kinase activation, cell proliferation and carcinogenesis. In order to investigate the action mechanism of PIPx, it is desirable to synthesize affinity column of PI‐3, 4‐P2, which is expected to be able to isolate the binding proteins of PI‐3, 4‐P2. Thyramine reacted with CH‐Sepharose 4B giving column 13. The p‐amino group of 3′‐(1′, 2′‐distearoyl‐glyceryl)‐1‐(2‐p‐aminobenzyl)‐3,4‐di‐O‐phosphoryl‐myo‐inosityl phosphate (12) was diazotized, then diazo‐coupled with column 13 to give PI‐3, 4‐P2 affinity column 14. This PI‐3,4‐P2 affinity column is an effective tool to pick up binding proteins of PI‐3, 4‐P2.
Synthesis and crystal structure of (E)‐[(2‐cyclohexenyl)vinyl]triaryitin
Authors: Kui Huang , Fang‐Xin Fu , Hua‐De Pan 
Published: September 2010

Abstract(E)‐[(2‐Cyclohexenyl)vinyl]triaryitin (aryl=phenyl, p‐tolyl) were synthesized and characterized by elemental analysis, IR, 1H NMR spectroscopy. The crystal structure of (E‐)[(2 cyclohexenyl)vinyl]triphenyltin was also determined by the X‐ray diffraction. Experiments show that this compound has the conjugated system, which makes it have possible bioactivity and antitumor activity.
Density functional theory (DFT) and ab initio investigations of the electronic and molecular structures of the monomer and the dimer of trimethylaluminium
Authors: Gong‐Yi Hong , Xiao‐Yan Cao , Dian‐Xun Wang , Le‐Mm Li , Guang‐Xian Xu 
Published: September 2010

AbstractThe electronic and molecular structures of the monomer and dimer of trimethylaluminium have been studied using density functional theory and ab initio MP2 method. The optimized geometry of the monomer Al(CH3)3 is of C3h symmetry, whew that of the dimer [Al(CH3)3]2 contains a carbon‐bridged four‐membered ring structure with C2h symmetry. The hydrogen‐bridged six‐membered ring structure is found to be unstable. The calculated dimerization energy for the four‐membered ring structure is 78 kJ/mol, in close proximity to the experimental due of 85.27 kJ/mol.
Synthesis and characterization of novel heteronuclear complexes of Ln(III)‐Cu(II) with non‐cyclic polyether Schiff base
Authors: Ke‐Min Yao , Jing Wu , Qing Xu , Lian‐Fang Shen , Han‐Zhen Yuan 
Published: September 2010

AbstractNine novel heteronuclear complexes of Ln(III)‐Cu(II) with salicylidene tetraethylene glycol diamine (SALTTA) have been synthesized and characterized. They have the general formulae [LnCu2(SALTTA)2(NO3)3](NO3)4·3H2O (Ln=La, Pr, Nd, Sm) and [LnCu3(SALTTA)3(NO3)5]‐(NO3)4·4H2O (Ln=Gd, Tb, Er, Yb, Y). The IR spectra show that vC=N in the Ln(III)‐Cu(II) heteronuclear complexes are splitted up into two peaks with a far distance. It has been confirmed that oxygen atoms in oxyethylene of the ligand are not all coordinated to the central metal ions by both IR and NMR methods.
Photochemical addition of methanol to C60: Formation of 1,4‐dimethoxyfullerene
Authors: Wen Zhang , Liang‐Bing Gan , Chun‐Hui Huang 
Published: September 2010

AbstractThe addition of methanol to C60 in the presence of acetylglycine (AG) was carried out under irradiation. The novel compound, 1,4‐dimethoxyl‐1,4‐dihydrofullerene (1), was isolated and characterized by FTIR, UV‐vis, 1H and 13C NMR, and FDMS.