bluuebunny/crossref_metadata_2025 huggingface dataset:
ChemInform Abstract: Primary and Secondary Vinylarsines: Synthesis, Stability, and Characterization.
Authors: GUILLEMIN J.‐C. , LASSALLE L.
Published: September 2010

ChemInform 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 Convenient One‐Pot Preparation of Bis(nitroaryl) Tellurides Using a Tellurium‐Copper Couple as the Telluration Reagent.
Authors: SUZUKI H. , NAKAMURA T.
Published: September 2010

ChemInform 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: On Steroids. Part 374. 7a‐Keto‐B‐homotestosterone and 7a‐Keto‐B‐ homoepitestosterone.
Authors: KOHOUT L. , KASAL A.
Published: September 2010

ChemInform 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: Preparation of 6‐Azaandrost‐4‐ene‐3,7,17‐trione and Some Related 3‐ Oxygenated 6‐Azaandrostanes.
Authors: BACK T. G. , BARON D. L. , MORZYCKI J. W.
Published: September 2010

ChemInform 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: Pyripyropenes, Novel Inhibitors of Acyl‐CoA: Cholesterol Acyltransferase Produced by Aspergillus fumigatus. Part 2. Structure Elucidation of Pyripyropenes A, B, C and D.
Authors: KIM Y. K. , TOMODA H. , NISHIDA H. , SUNAZUKA T. , OBATA R. , OMURA S.
Published: September 2010

ChemInform 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: The Norrish Type I Photocleavage of (+)‐2β‐Ethyl‐9‐azabicyclo(3.3.1)nonan‐3‐one: A Short, Enantioselective Formal Synthesis of (‐)‐Indolizidine 223AB.
Authors: MURAOKA O. , OKUMURA K. , MAEDA T. , TANABE G. , MOMOSE T.
Published: September 2010

ChemInform 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: New General Synthesis of Organophosphorus P‐F Compounds via Reaction of Azolides of Phosphorus Acids with Acyl Fluorides: Novel Route to 2‐ Deoxynucleosidyl Phosphorofluoridates and Phosphorodifluoridates.
Authors: DABKOWSKI W. , MICHALSKI J. , WASIAK J. , CRAMER F.
Published: September 2010

ChemInform 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 Biological Activity of the D‐3‐Deoxy‐3‐fluoro and D‐3‐ Chloro‐3‐deoxy Analogues of Phosphatidylinositol.
Authors: KOZIKOWSKI A. P. , POWIS G. , FAUQ A. H. , TUECKMANTEL W. , GALLEGOS A.
Published: September 2010

ChemInform 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 Simple and Highly Diastereoselective Synthesis of a 1β‐ Methylcarbapenem Key Intermediate (IV) by Deallyloxycarbonylation Using Palladium Complexes.
Authors: MURAYAMA T. , YOSHIDA A. , KOBAYASHI T. , MIURA T.
Published: September 2010

ChemInform 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: Semisynthetic C23‐Substituted Milbemycins via Spiroacetal Cleavage and Resynthesis.
Authors: BAKER G. H. , HUDNER J. F. , HUSSAIN N. , MORGAN D. O. , DORGAN R. J. J.
Published: September 2010

ChemInform 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 New Topoisomerase II Inhibitor, BE‐22179, Produced by a Streptomycete. Part 1. Producing Strain, Fermentation, Isolation and Biological Activity.
Authors: OKADA H. , SUZUKI H. , YOSHINARI T. , ARAKAWA H. , OKURA A. , SUDA H. , YAMADA A. , UEMURA D.
Published: September 2010

ChemInform 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: Magnesidin A, a Component of Marine Antibiotic Magnesidin, Produced by Vibrio gazogenes ATCC29988.
Authors: IMAMURA N. , ADACHI K. , SANO H.
Published: September 2010

ChemInform 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 2‐Methylheptadecane and 14‐Methylpentadecan‐3‐one.
Authors: SINGH J. , ARORA A. K. , KAUR A. , KAD G. L.
Published: September 2010

ChemInform 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: Structural Predictions in the ABO3 Phase Diagram
Authors: GIAQUINTA D. M. , ZUR LOYE H.‐C.
Published: September 2010

ChemInform 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: Natural Zeolite Utilization in Pollution Control: A Review of Applications to Metals′ Effluents
Authors: KESRAOUI‐OUKI S. , CHEESEMAN C. R. , PERRY R.
Published: September 2010

ChemInform 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: Low‐Temperature Deep Oxidation of Aliphatic and Aromatic Hydrocarbons
Authors: VANDERSALL M. T. , MAROLDO S. G. , BRENDLEY W. H. JUN. , JURCZYK K. , DRAGO R. S.
Published: September 2010

ChemInform 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: Hydrolysis of COS on Titania Catalysts. Mechanism and Influence of Oxygen
Authors: HUISMAN H. M. , VAN DER BERG P. , MOS R. , VAN DILLEN A. J. , GEUS J. W.
Published: September 2010

ChemInform 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: Mass Spectrometry of Macrocyclic Compounds.
Authors: KIREMIRE B. , SERAGLIA R. , TRALDI P.
Published: September 2010

ChemInform 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: Electrical Properties of Thin Anodic Oxides Formed on Silicon in Aqueous NH4OH Solutions.
Authors: LANDHEER D. , BARDWELL J. A. , CLARK K. B.
Published: September 2010

ChemInform 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: Improving the Use of Hydroxyl Proton Resonances in Structure Determination and NMR Spectral Assignment: Inhibition of Exchange by Dilution.
Authors: PEARCE C. M. , SANDERS J. K. M.
Published: September 2010

ChemInform 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: Titanium Tetrachloride Mediated Addition of 1,8‐Bis(trimethylsilyl)‐2, 6‐octadiene to Aldehydes. A One‐Step Control of Four Stereogenic Carbon Centers.
Authors: PELLISSIER H. , TOUPET L. , SANTELLI M.
Published: September 2010

ChemInform 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: Mechanistic Evaluation of Dissociative Electron‐Transfer and Nucleophilic Substitution Reactions.
Authors: KIMURA N. , TAKAMUKU S.
Published: September 2010

ChemInform 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: Combined Use of Diphenyltin Sulfide or Lawesson′s Reagent and Silver Perchlorate as Effective Catalyst Systems in Aldol Reaction.
Authors: MUKAIYAMA T. , SAITO K. , KITAGAWA H. , SHIMOMURA N.
Published: September 2010

ChemInform 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: Face Selectivity of the Diels‐Alder Additions and Cheletropic Additions of Sulfur Dioxide to 2‐Vinyl‐7‐oxabicyclo(2.2.1)hept‐2‐ene Derivatives.
Authors: MEERPOEL L. , VRAHAMI M.‐M. , DEGUIN B. , VOGEL P.
Published: September 2010

ChemInform 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: Alcoholysis of Epoxides Catalyzed by Tetracyanoethylene.
Authors: MASAKI Y. , MIURA T. , OCHIAI M.
Published: September 2010

ChemInform 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: Periselective Intramolecular Cycloaddition of Allenyl Thioethers and Allenyl Sulfones.
Authors: YEO S.‐K. , SHIRO M. , KANEMATSU K.
Published: September 2010

ChemInform 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: Ring Cleavage of Benzofurans and Tetrahydrobenzofurans by m‐ Chloroperbenzoic Acid Epoxidation.
Authors: ADAM W. , AHRWEILER M. , SAUTER M.
Published: September 2010

ChemInform 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: Autorecycling System for the Specific 1,4‐Reduction of α,β‐ Unsaturated Carbonyl Compounds Catalyzed by 1,5‐Dihydro‐5‐deazaflavin.
Authors: NAGAMATSU T. , KURODA K. , MIMURA N. , YANADA R. , YONEDA F.
Published: September 2010

ChemInform 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: Selective Bromochlorination of endo‐1,4‐Dibromotricyclo(5.2.1.02,6) deca‐3,8‐diene‐5,10‐dione 10‐Ethylene Acetal at the Conjugated Carbon‐ Carbon Double Bond.
Authors: GABLE R. W. , PARKER K. J. , TSANAKTSIDIS J.
Published: September 2010

ChemInform 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: Investigation of the Active Site of Aminopeptidase A Using a Series of New Thiol‐Containing Inhibitors.
Authors: CHAUVEL E. N. , CORIC P. , LLORENS‐CORTES C. , WILK S. , ROQUES B. P. , FOURNIE‐ZALUSKI M.‐C.
Published: September 2010

ChemInform 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: 2,6‐Dicyano‐1,5‐dimethyl‐4,8‐diphenylsemibullvalene. Synthesis, Structure and the Reactions with Triplet Oxygen.
Authors: QUAST H. , HERKERT T. , WITZEL A. , PETERS E.‐M. , PETERS K. , VON SCHNERING H. G.
Published: September 2010

ChemInform 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 General Synthesis of N‐Styrylbenzamides, N‐Styrylphenylacetamides, and N‐Carbethoxy‐N‐styrylphenylethylamines.
Authors: ESTEVEZ J. C. , VILLAVERDE M. C. , ESTEVEZ R. J. , CASTEDO L.
Published: September 2010

ChemInform 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: Preparation of 1‐Alkynyl Thiotosylates.
Authors: WILLIAMSON B. L. , MURCH P. , FISCHER D. R. , STANG P. J.
Published: September 2010

ChemInform 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: Synthetic Anticonvulsants, Antihypoxants and Inductors of the Hepatic Monooxygenase System. Part 13. Antihypoxic Properties of N‐ Benzhydrylamines
Authors: BAKIBAEV A. A. , GORSHKOVA V. K. , TIGNIBIDINA L. G. , FILIMONOV V. D. , OLEINIK N. B. , SARATIKOV A. S. , KRASNOV V. A.
Published: September 2010

ChemInform 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: Palladium‐Catalyzed Alkylative Cyclization of 2,3‐Butadienylmalonates to γ‐Lactones.
Authors: BESSON L. , BAZIN J. , GORE J. , CAZES B.
Published: September 2010

ChemInform 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: Lactam Acetals. Part 24. Reaction with Activated Haloalkyl Compounds with and without Zinc.
Authors: JAIN S. , JAIN R. , SINGH J. , ANAND N.
Published: September 2010

ChemInform 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: Derivatives of 4‐(Aminomethyl)pyrrole‐3‐carboxylic Acid.
Authors: ARNOLD D. P. , BROWN R. F. C. , NITSCHINSK L. J. , PERLMUTTER P. , TOPE H. K.
Published: September 2010

ChemInform 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: Heterocycle Formation Through Aza‐Annulation: Stereochemically Controlled Syntheses of (.+‐.)‐5‐Epitashiromine and (.+‐.)‐Tashiromine.
Authors: PAULVANNAN K. , STILLE J. R.
Published: September 2010

ChemInform 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 Thieno(2,3‐a)quinolizidines.
Authors: OUSSAID B. , AURELL M. J. , GARRIGUES B. , SOUFIAOUI M.
Published: September 2010

ChemInform 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: Ritter Reactions. Part 9. Transannular Addition of Nitriles to the 5H‐ Dibenzo(a,d)cycloheptene Ring System.
Authors: PICH K. C. , BISHOP R. , CRAIG D. C. , SCUDDER M. L.
Published: September 2010

ChemInform 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: Large Water‐Soluble Cyclophanes with Convergent Intracavity Functionality.
Authors: DIEDERICH F. , CARCANAGUE D. R.
Published: September 2010

ChemInform 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 Convenient Method for Preparing Some New Macrocyclic Diamides (V), ( VIII).
Authors: LIU L. K. , HSIEH T.‐P. , KUO S.‐M.
Published: September 2010

ChemInform 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: Antineoplastic Agents. Part 267. The Dolastatins. Part 19. Synthesis of Dolaisoleucine.
Authors: PETTIT G. R. , SINGH S. B. , SRIRANGAM J. K. , HOGAN‐PIERSON F. , WILLIAMS M. D.
Published: September 2010

ChemInform 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 Safe and Efficient Method for Preparation of N,N′‐Unsymmetrically Disubstituted Ureas Utilizing Triphosgene.
Authors: MAJER P. , RANDAD R. S.
Published: September 2010

ChemInform 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: C‐Terminal Sequencing of Peptides and Proteins by Successive Degradation with Heptafluorobutyric Anhydride Vapor.
Authors: NABUCHI Y. , YANO H. , KAMO M. , TAKAMOTO K. , SATAKE K. , TSUGITA A.
Published: September 2010

ChemInform 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: π‐Facial Selectivity in the Cycloaddition of Nitrile Oxides to 5,6‐ Dideoxy‐5‐enofuranoses.
Authors: BLAKE A. J. , KIRKPATRICK G. , MCGHIE K. E. , PATON R. M. , PENMAN K. J.
Published: September 2010

ChemInform 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 New Simple Method for the Synthesis of Nα‐Fmoc‐Nβ‐ Glycosylated L‐Asparagine Derivatives.
Authors: INAZU T. , KOBAYASHI K.
Published: September 2010

ChemInform 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 (.+‐.)‐Isoautumnaline and (.+‐.)‐Dysoxyline.
Authors: NIMGIRAWATH S.
Published: September 2010

ChemInform 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: Biomimetic Synthesis of Ascididemin and Derivatives.
Authors: GELLERMAN G. , RUDI A. , KASHMAN Y.
Published: September 2010

ChemInform 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: Properties of 1,2‐Borylphosphinoalkenes
Authors: BALUEVA A. S. , NIKONOV G. N.
Published: September 2010

ChemInform 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: Tilden Lecture. Studies on Thymidylate Synthase and Dihydrofolate Reductase ‐ Two Enzymes Involved in the Synthesis of Thymidine
Authors: YOUNG D. W.
Published: September 2010

ChemInform 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: Hydrothermal Synthesis, Texture and Phase Composition of Binary, Porous Xerogels Based on Highly Disperse Powders of Al2O3 and SiO2.
Authors: CHERTOV V. M. , KAGANOVSKII V. A. , TSYRINA V. V. , MIRONYUK I. F.
Published: September 2010

ChemInform 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: Selective Photooxidation of Propane to Propanone over Alkali‐Ion‐ Modified Silica‐Supported Vanadium Oxides.
Authors: TANAKA T. , TAKENAKA S. , FUNABIKI T. , YOSHIDA S.
Published: September 2010

ChemInform 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: Enantioselective Synthesis of the Hexahydronaphthalene Nucleus (XIII) of (‐)‐Compactin from Ethyl (1R,2S)‐2‐Methyl‐4‐ oxocyclohexanecarboxylate and 2‐(3‐Nitropropyl)‐1,3‐dioxolane as Four‐ Carbon Bifunctional Annelating Agent.
Authors: BARCO A. , BENETTI S. , BIANCHI A. , CASOLARI A. , POLLINI G. P. , ROMAGNOLI R. , SPALLUTO G. , ZANIRATO V.
Published: September 2010

ChemInform 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.
Cholesterol oxidase biosensor based on a glassy carbon electrode modified with Nafion and methyl viologen
Authors: Jin Li‐Tong , Zhao Gui‐Zhu , Fang Yu‐Zhi
Published: September 2010

Cholesterol oxidase biosensor has been constructed by using bovine serum albumin and glutaraldehyde as cross linker to immobilize cholesterol oxidase and cholesterol esterase on a glassy carbon electrode modified with Nafion and methyl viologen. The biosensor has been used to determine total cholesterol in blood. The linear range of the determination is 2.5×10−7 to 1.0×10−4 mol/L. The detection limit is about 5.0×10−8 mol/L. The response time is 12 s. This biosensor has the advantage of high selectivity, sensitivity and short response time.
Mass spectrometric identification of double bond positional isomers of hexadecenyl acetate without chemical derivatization
Authors: Yuan Gu , Horiike Michio , Kim Chul‐Sa , Hirano Chisato
Published: September 2010

A method for the identification of the double bond positional isomers of hexadecenyl acetate has been established by analysing similarity of the mass spectra patterns on a fuzzy classification, in which the intensity ratios of six diagnostic pairs of the predominant ions were selected as standard parameters for the characterization of the double bond position. The procedure was tested with λ2 to λ15‐isomers of chemically unmodified hexadecenyl acetate, and the original double bond position in the acetates was located unambiguously.
Theoretical studies on the band structures of superconducting solid compounds: Nb3X (X=Si, Ge, Sn, Pb)
Authors: Cai Shu‐Hui , Li Jun , Liu Chun‐Wan
Published: September 2010

The band structures of several analogous superconducting A‐15 type solid compounds, Nb3X (X=Si, Ge, Sn, Pb), have been calculated by use of the tight‐binding method within the Extended Hückel approximation (EHT). By analysis of their energy bands, densities of states and crystal orbital overlap populations, the dependence of the superconducting transition temperatures (Tc) on the electronic structures and bondings is qualitatively elucidated.
A new method to evaluate force constants from experimental spectral data
Authors: Li Le‐Min , Liu Yi , Wang Xiu‐Zhen
Published: September 2010

An iterative procedure is proposed to facilitate the determination of molecular vibrational force constants from the experimental fundamental frequencies. Proper restrictions are introduced to the force constants based on physical considerations for getting reasonable results. The experimental data of Coriolis coupling coefficients and isotopic frequency shifts are utilized to reduce the uncertainty of the calculated force constants when they are available. A series of various kinds of molecules have been calculated by this method and the results are satisfactory.
Synthesis and magnetic properties of copper (II)‐lanthanoid (III) binuclear complexes with N, N′‐bis(3‐aminopropyl) oxamido ligand
Authors: Li Yan‐Tuan , Jiang Zong‐Hui , Liao Dai‐Zeng , Yan Shi‐Ping , Ma Shu‐Lin , Wang Gen‐Lin
Published: September 2010

Six novel μ‐oxamido binuclear complexes, namely Cu(axpn)Ln(L)2(ClO4)3 (Ln: Eu, Gd, Tb, Nd, Ho, Er), where oxpn is N,N'‐bis(3‐aminopropyl) oxamido, L denotes 5‐nitro,10‐phenanthroline (abbreviated as NO2‐phen), have been synthesized and characterised. The magnetic susceptibility of complexes Cu(oxpn)Gd(NO2‐phen)2(ClO4)3.2H2O was measured over the 4–300 K and the observed data were successfully simulated by equation based on spin Hamiltonian operator (H = ‐2J1 · S2), giving the exchange integral J(Cu‐Gd)=‐1.62 cm−1. This indicates a weak antiferromagnetic interaction between the Cu(II) and Gd(III) ions.
Determination of bioelectrochemical parameters of red cell using a piezoelectric crystal sensor
Authors: Si Shi‐Hui , Nie Li‐Hua , Yao Shou‐Zhuo
Published: September 2010

Based on the impedance behavior of red cell at high frequency, the frequency response of series piezoelectric crystal sensor in the red cell suspension was derived and verified experimentally. A method of using piezoelectric crystal sensor to determine the conductivity of the interior of the cell was proposed. The experimental results show that the mean conductivity of rabbit red cell cytoplasm was 0.269 S/m and the mean shape factor of red cell was 2.05.
Study on Lewis acid promoted condensation of allylalkoxysilanes with (‐)‐menthyl glyoxylate
Authors: Chen Yong‐Jun , Huang Liang , Wang Dong , Li Ji‐Sheng
Published: September 2010

Allylalkoxydimethylsilanes (2) condense with (‐)‐menthyl glyoxylate (3) in the presence of Lewis acid to give optically active menthyl 2‐hydroxy‐4‐pentenoate (7) with optical purity of 31–42%. Factors affecting the yield and de of 7 have been examined. The stereochemistry of transition state of the reaction was discussed.
Studies of di[(phenyldimethylsilyl)methyl]‐methyltin dithiophosphates
Authors: Xie Qing‐Lan , Sha Yin‐Lin
Published: September 2010

Thirteen derivatives of di[(phenyldimethylsilyl)methyl]methyltin dithiophosphates have been synthesised and characterized by the elemental analysis, IR, 1H, 13C, 119Sn NMR and MS. The results show that they are four‐coordinated. The preliminary bioassay reveals that they have good acaricidal activity and some of them have insecticidal, herbicidal activities at the same time.
Synthesis of per(poly)fluoroalkyl substituted alkenes and alkynes—Utilizing potassium fluoride supported on alumina as a dehydrohalogenating agent
Authors: Chen Jian , Hu Chang‐Ming
Published: September 2010

Potassium fluoride on alumina was proved to be an efficient dehydrohalogenating agent for the synthesis of per(poly)fluoroalkyl substituted alkenes and alkynes. The reaction was simple, mild and the yields ranged from good to excellent.
[Co3(1,2‐S2C6H4)3(PPh3)3]+, A basic triangle unit of some polynuclear molecules
Authors: Jiang Fei‐Long , Huang Xiao‐Ying , Hong Mao‐Chun , Cao Rong , Wu Da‐Xu , Liu Han‐Qin
Published: September 2010

[Co3(1,2‐S2C6H4)3(PPh3)3][CoBr3(DMF)]sol (1, sol=CHCl3·O(C2H5)2·H2O) was obtained from the reaction of CoBr(PPh3)3 with Na2(S2C6H4) in chloroform. The Co3 core in the cation of 1 exhibits a metal‐metal bonded isosceles triangle, in which the two longer Co—Co bonds are both bridged by S2C6H4 ligands on two sides of the triangle plane respectively, while the bottom short Co—Co bond is bridged by the third bidentate S2C6H4 ligand. A series of polynuclear cobalt cluster compounds with phosphine, thiolate and/or sulphur ligands were prepared by low oxidation state Co+ with thiolates in organic solvents. These tri‐, tetra‐, hexa‐, heptanuclear cluster compounds 1–8 with various types of crystal structures can be viewed as the condensed polynuclear cobalt complexes that the cobalt atom frameworks with sulphur bridged were built through the small triangular units of [Co3S3nL3] (n=1,2) with or without [CoL] (L=PR3, Br, Cl,5‐C5H5) fragments.
Substituent effects on the EPR aN values of symmetrically para‐disubstituted diphenyl nitroxides
Authors: Zhang Yu‐Huang , Jiang Bin , Zhou Cheng‐Ming , Jiang Xi‐Kui
Published: September 2010

Nitrogen hyperfine splitting constants (aN values) of seven symmetrically para‐disubstituted diphenyl nitroxides (1‐Y's) were measured by EPR and used in conjunction with five literature values in our correlation analysis. The correlation of these aN values by single‐parameter Eq. 1 and dual‐parameter Eq. 2 shows that the application of Eq. 2 does not significantly improve the correlation. But our data can also be interpreted by the proposition that the spin‐delocalization effect is not completely nonexistent and that it might have revealed itself through the aN values of two very weakly polar substituents with pronounced spin‐stabilizing abilities, i.e., SMe and SiMe3.
The preparation, structure and spectra properties of dual μ3‐oxo bridged tetranuclear complexes containing the (CrFe4‐nO2]8+ core (n =0, 2, 4)
Authors: Pan Wen‐Yu , Yu Xiu‐Fen
Published: September 2010

The preparation and characterization of [CrnFe4‐nO2(O2CMe)7(bipy)2]Cl (1, n=0; 2, n=2; 3, n=4, bipy=2,2'‐bipyridine) are described. The three complexes (1, 2 and 3) are obtained by bipyridine‐mediated conversion of trinuclear [CrnFe3‐nO(O2CMe)6(H2O)3]+(1, n=0; 2, n=1; 3, n=3), and crystallized as three of approximate isomorphs. Crystal 2 is monoclinic with space group C2/c, a=27.454(5)Å, b=11.789(1)Å, c=16.570(3)Å, β=118.78(1)°, V=4700.8Å3, z=4, μ(MoK)=11.64cm−1, F(000)=2056, final R=0.058 and Rw=0.066 for 3479 reflections with I ⩽ 3σ(I). The Fe and Cr atoms in the cation are all +3 oxide state and disordered in the lattice, which is also supported by its Mossbauer studies. The [Cr2Fe2O2]8+ core can be thought of as being derived from two edge‐sharing M3O units (M=Fe or Cr), and as a butterfly‐like structure. The cations' structure of all three crystals are similar to each other and have C2 symmetry. The species are characterized by IR spectra and magnetic techniques, with particular emphasis on differentiation of coordination bond strengths and electronic environment of metal atoms in these complexes.
Synthesis of a new salt containing polyoxometallate anion and MCuS cluster cation [MS4Cu4(γ‐MePy)8][M6O19] (M = Mo, W). Crystal structure of [WS4Cu4(γ‐MePy)8] [W6O19]
Authors: Pope Michael T. , Lang Jian‐Ping , Xin Xin‐Quan , Yu Kai‐Bei
Published: September 2010

Reactions of (NH4)2MS4, AgBr and CuBr in γ‐methylpyridine produced one new compound, [MS4Cu4(γ‐MePy)8][M6O19] (1, M = W;2, M = Mo), of which 1 was characterized by single crystal X‐ray analysis. The crystal data: orthorhombic, Pbcn, a = 15.434(4), b = 16.732(2), c = 28.657(7) Å, V = 7400.8(8) Å3, Z =4, R = 0.072 for 3121 independent data. The compound is the first example which contains both polyoxotungstate anion and heteropolynuclear cluster cation. In the structure of the cation four edges of the tetrahedral WS2−4 core are coordinated by four copper atoms, giving a WS4Cu4 aggregate of approximate D2h symmetry. The differences between the reaction of Cu+ with MS2−4 and that of Ag+ with MS2−4 in pyridine and its derivatives are discussed.
The Syntheses and crystal structures of trans‐dichlorobis (10‐thiabenzo‐15‐crown‐5)‐palladium(II) and trans‐dichlorobis‐(10‐selenabenzo‐15‐crown‐5)palladium(II)
Authors: Li Wei‐Ping , Liu Xiu‐Fang , Xu Han‐Sheng , Huang You‐Qing , Hu Sheng‐Zhi
Published: September 2010

The preparation and X‐ray crystal structures of the adducts of 10‐thiabenzo‐15‐crown‐5 and 10‐selenabenzo‐15‐crown‐5 with PdCl2 are reported. [PdCl2(C14H20O4S)2] (1): orthorhombic, space group Pbca with cell dimensions of a=17.285(5), b=8.354(3), c=21.689(4) Å, V=3131.9 Å3, Z=4; R=0.0330 for 2301 reflections with I > 3σ(I), [PdCl2(C14H20O4Se)2] (2): monoclinic, space group P21/n with cell dimensions of a=18.928(4), b=8.912(3), c=9.813(2) Å, β=96.90(2)°, V=1643.4 Å3, Z=2; R=0.0289 for 2617 reflections with I > 3σ(I), Both complexes are monomeric, square‐planar palladium(II) compounds with the Pd(II) ion situating on a crystallographic inversion centre, and the crown ligands all adopt the axial coordination with the Pd–‐S bond of 2.3233(7) Å and the Pd–‐Se bond of 2.4357(3) Å. Their complexing characteristics are discussed in brief.
Study on phase diagrams and properties of solutions in ternary systems Li+,K+(Mg2+)/SO42‐‐H2O at 25°C
Authors: Li Bing , Li Jun , Fang Chun‐Hui , Wang Qing‐Zhong , Song Peng‐Sheng
Published: September 2010

Solubilities of ternary systems Li+,K+/SO2‐4‐H2O (1) and Li+,Mg2+/SO42‐‐H2O (2) were investigated by isothermal method at 25°C. Physico‐chemical properties of solutions, such as density, refractive index, viscosity, conductivity and pH, were determined. Phase diagram of the system (1) consists of three solubility branches and three crystallization fields corresponding to K2SO4, Li2SO4·H2O and LiKSO4. LiKSO4 is an incongruent compound, and its transition point is estimated graphically to be 45.5–46.0°C. No solid solution of LiKSO4 with Li2SO4·H2O was found in the system. The system (2) is a simple eutonic type. Pitzer model of electrolyte solution was used to check the obtained solubilities. Data comparison gives good agreement. Two equations were used to correlate density, refractive index of the solution with its composition. Differences between measured and calculated values are less than 0.6% for density, 0.15% for the latter.
Quantum chemical studies on antimalarial of artemisinin (qinghaosu) derivatives
Authors: Jiang Hua‐Liang , Chen Kai‐Xian , Tang Yun , Chen Jian‐Zhong , Ji Ru‐Yung
Published: September 2010

In this paper theoretical studies were performed on artemisinin (qinghaosu) derivatives with semiempirical quantum chemical methods AMI and PM3. The antimalarial activity ‐logC has an obvious correlation with the net charge of C(16) and bond orders of bonds O(1)‐C(10), O(2)‐C(6), O(1)‐O(2) and O(5)‐C(16). According to the calculation results, we derived structure‐activity relationship, presented the probable pharmacophore of qinghaosu derivatives and the interaction fashion between the drugs and the plasmodium receptor.
The synthesis and crystal structure of heteronuclear complex of lanthanide with sulfo‐salicylic acid [Na3YLa2(C7H3SO6)4·26H2O]n
Authors: Sun Hong‐Ye , Huang Chun‐Hui , Gan Liang‐Bing , Xu Guang‐Xian , Ma Zhe‐Sheng , Shi Ni‐Cheng
Published: September 2010

The titled complex has been synthesized by the reaction of sodium sulfo‐salicylate with lanthanum and yttrium perchlorate. The crystal structure has been determined by single crystal X‐ray diffractometry. The crystal is monoclinic with space group C2/c. The unit cell parameters are as follows: a=16.289(8), b=18.323(8), c=22.044(8) Å, β=106.34(2)°, V=6314(6) Å3, Z=4 and Dc= 1.764 g/cm3. The structure was solved by direct method. The least‐square refinement based on 3776 observed reflections [F > 6σ(F)] converged to a final R=8.6% and F(000) is 3548. Yttrium ion with eight‐coordinate is located in central of the molecule, the two lanthanum ions with ten‐coordinate are located at the two sides of yttrium ion. There are two positions for Na in the molecule, one is in the C2 axis with six coordinate, the other one is in a general position with five‐coordinate.
Studies on basicity of alkali metal cation exchanged β and X zeolites by pyrrole‐IR spectroscopy
Authors: Xu Jun , Yan Ai‐Zhen , Xu Qin‐Hua
Published: September 2010

The strength of basic sites has been measured by pyrrole‐IR on alkali metal cation exchanged β and X zeolites, as well as NaOH loaded Naβ. The influence of cation type and the structure of zeolites on their basicity has been studied. The acidic and basic properties of the samples were investigated by NH3‐TPD and isopropanol reaction. It was shown that the strength of basic sites on samples could be characterized by the shift of vnh band in the pyrrole‐IR spectra. The framework oxygen charges were calculated from the Sanderson electronegativity. The changes in basic properties with various alkali metal cation are consistent with the changes of local oxygen charges of the zeolite framework.
The structural characterization of some palladium(II) complexes of 1,10‐phenanthroline and amino acids by NMR spectroscopy
Authors: Ye Bao‐Hui , Zeng Tian‐Xian , Ji Liang‐Nian
Published: September 2010

The complexes [Pd(phen)(aa)]Cl·3H2O, where phen is 1,10‐phenanthroline and as is the anion of glycine (gly), DL‐alanine (ala), DL‐serine (ser) or DL‐asparagine (asn), were synthesized and characterized by spectroscopies. The NMR signals were assigned completely on the basis of the double irradiation, 1H‐1 H COSY and 1H‐13C COSY techniques. In the 1H NMR spectra of phen in the complexes, the signals of 2‐H and 9‐H show upfield shifts 0.8–1 ppm, while the signals of 4‐H and 3‐H show downfield shifts or almost no shift, as compared to the free phen ligand, and the signal of 4‐H appears in the lowest field. The signals of ring B which is trans to the carboxyl group show significant upfield shirts as compared to those of ring A. The probable structures were described on the basis of a metal‐non‐bonded hydrogen interaction, trans effect and ligand‐ligand interaction. There may exist three conformation isomers in the [Pd(phen)(asn)]Cl·3H2O complex at room temperature. The preferred conformation isomer is about 75% in terms of the relative peak areas in the α‐CH part of the spectra.
Ferromagnetically coupled heterobinuclear Cu(II)‐Ln(III) complexes with N,N′‐bis(2‐aminoethyl)‐oxamido dianion as a bridged ligand
Authors: Li Yan‐Tuan , Liao Dai‐Zheng , Jiang Zong‐Hui , Wang Geng‐Lin
Published: September 2010

Six novel μ‐oxamido heterobinuclear complexes, namely Cu(oxae)Ln(Me2bpy)2‐(ClO4)3 (LnLa, Nd, Gd, Tb, Ho, Er), where oxae denotes N, N'‐bis(2‐aminoethyl)oxamido dianion, Me2bpy is 4,4'‐dimethyl‐2,2'‐bipyridyl, have been synthesized and characterised by elemental analyses, IR, conductivity measurements and electronic spectra. The temperature dependence of the magnetic susceptibility of Cu(oxae)Gd(Me2bpy)2(ClO4)3 has been measured over the range 4–300 K. The least‐squares fit of the experimental susceptibilities yielded J = 1.87 cm−1. The observed Gd(III)‐Cu(II) coupling is ferromagnetic. One plausible mechanism that can cause a ferromagnetic coupling between Gd(III) and Cu(II) is discussed in terms of spin‐polarization.
Heteroaggregation between porphyrin and phthalocyanine bearing oppositely charged substituents
Authors: Mao Hai‐Fang , Tian Hong‐Jian , Xu Hui‐Jun
Published: September 2010

Heteroaggregates composed of cationic porphyrin, meso‐tetra(p‐trimethylamino)porphyrin iodide, its zinc complex and anionic phthalocyanine sodium hydxoxygallium 4,4′,4″,4″′‐tetrasulfonated phthalocyanine have been investigated by absorption and fluorescence spectroscopy. It has been found that both free base cationic porphyrin and its zinc complex can form very stable heterodimers with anionic phthalocyanine in water, methanol and dimethylformamide. The stability of the aggregate depends on the polarity as well as the ligation ability of the solvent. No evidence of higher aggregates was detected. Besides axial coordination, steric hindrance which influences the relative orientation of the macrocycles are considered.
Synthesis of polyfluoroalkylated glycerol and crown ether
Authors: Huang Wei‐Yuan , Wu Yong‐Ming , Liu Jin‐Tao
Published: September 2010

Perfluoroalkylated glycerol (5, 9) and crown ethers (22, 23, 24) were synthesized starting from glycerol. 5 was synthesized by allylation of glycerol 1,2‐acetonide followed by perfluoroalkylation initiated with sodium dithionite, reduction of iodide and hydrolysis in good overall yield and was shown to possess good surface activities. Glycerol bis‐ether (9) was synthesized in a similar way. Allyloxymethyl crown ethers (15, 16, 18) were prepared as key intermediates through multi‐step reactions, which were then perfluoroalkylated to give the title crown ethers 33, 33, 34.
Two new cyclopeptides from stellaria yunnanensis
Authors: Zhao Yu‐Rui , Wang Xian‐Kai , Zhao Tong‐Fang , Zhou Jun , Huang Xiao‐Lin , Wu Hou‐Ming
Published: September 2010

In the previous papers, we reported the isolation and structural elucidation of three new cyclopeptides, namely stellarin A, B and C., from the fresh roots of stellaria yunnanensis Franch. In a continued study on this plant, other two new cyclopeptides named stellarin D(1) and E(2) were obtained and their structures were established to be cyclo (Gly‐Tyr‐Leu‐Phe‐Pro‐Ile‐Pro)(1), cyclo(Gly‐Ile‐Pro‐Tyr‐Ile‐Ala‐Ala)(2), respectively.
Addition of polyfluoropolyhaloethanes to alkenes
Authors: Chen Jian , Hu Chang‐Ming
Published: September 2010

In the presence of CrCl3/Fe redox system, polyfluoropolyhaloethanog readily added to electron‐deficient or electron‐rich alkenes, giving the corresponding 1:1 hydropolyfluoroalkylation product or 1:1 adduct in high yields. This reaction provided a simple and convenient method to synthesize building blocks containing a CF3 or CF2 moiety.