bluuebunny/crossref_metadata_2025_split huggingface dataset:
Construction of an Aryliridium—Salen Complex for Highly cis‐ and Enantioselective Cyclopropanations.
Authors: Kanchiku Shigefumi , Suematsu Hidehiro , Matsumoto Kazuhiro , Uchida Tatsuya , Katsuki Tsutomu 
Published: August 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Rhodium‐Catalyzed Intramolecular C—H Insertion of α‐Aryl‐α‐diazo Ketones.
Authors: Taber Douglass F. , Tian Weiwei 
Published: August 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthetic and Mechanistic Investigations on the Rearrangement of 2,3‐Unsaturated 1,4‐Bis(alkylidene)carbenes to Enediynes.
Authors: Sahu Bichismita , Muruganantham Rajendran , Namboothiri Irishi N. N. 
Published: August 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Tandem Catalysis: Access to Ketones from Aldehydes and Arylboronic Acids via Rhodium‐Catalyzed Addition/Oxidation.
Authors: Mora Guilhem , Darses Sylvain , Genet Jean‐Pierre 
Published: August 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Acylation of Alkylidenecyclopropanes for the Facile Synthesis of α,β‐Unsaturated Ketone and Benzofulvene Derivatives with High Stereoselectivity.
Authors: Huang Xian , Yang Yewei 
Published: August 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Vinylic Halogenation in 4‐Alkylidenazetidin‐2‐ones.
Authors: Cainelli Gianfranco , Galletti Paola , Giacomini Daria , Licciulli Sebastiano , Quintavalla Arianna 
Published: August 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
New Method for the Synthesis and the Mechanism of Formation of 1,2‐Di‐ and 1,2,3‐Trialkyldiaziridines.
Authors: Kuznetsov V. V. , Ovchinnikova V. B. , Ananikov V. P. , Makhova N. N. 
Published: August 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Cross‐Metathesis of α‐Methylene Lactones II: γ‐ and δ‐Lactones.
Authors: Raju Ravinder , Allen Laura J. , Le Tri , Taylor Christopher D. , Howell Amy R. 
Published: August 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
An Efficient Oxidative Lactonization of 1,4‐Diols Catalyzed by Cp*Ru(PN) Complexes.
Authors: Ito Masato , Osaku Akihide , Shiibashi Akira , Ikariya Takao 
Published: August 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Novel Synthons from Mucochloric Acid: The First Use of α,β‐Dichloro‐γ‐butenolides and γ‐Butyrolactams for Direct Vinylogous Aldol Addition.
Authors: Sarma Koushik Das , Zhang Ji , Curran Timothy T. 
Published: August 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Stereoselective Synthesis of Both Enantiomers of N‐Aryl Indoles with Axially Chiral N—C Bonds.
Authors: Kamikawa Ken , Kinoshita Shunsuke , Furusyo Masaru , Takemoto Shin , Matsuzaka Hiroyuki , Uemura Motokazu 
Published: August 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis of 2,3‐Disubstituted Indoles by a Rhodium‐Catalyzed Aromatic Amino‐Claisen Rearrangement of N‐Propargyl Anilines.
Authors: Saito Akio , Kanno Ayumi , Hanzawa Yuji 
Published: August 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis and Antimicrobial Activity of Some New 2‐Substituted Aminothiazoles.
Authors: Sutariya Bhavin , Raziya S. K. , Mohan S. , Rao S. V. Sambasiva 
Published: August 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Cu2(OTf)2‐Catalyzed and Microwave‐Controlled Preparation of Tetrazoles from Nitriles and Organic Azides under Mild, Safe Conditions.
Authors: Bosch Lluis , Vilarrasa Jaume 
Published: August 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Cascade Synthesis of Polyoxygenated 6H,11H‐[2]Benzopyrano‐[4,3‐c][1]benzopyran‐11‐ones.
Authors: Naumov Mikael I. , Sutirin Sergey A. , Shavyrin Andrey S. , Ganina Olga G. , Beletskaya Irina P. , Bourgarel‐Rey Veronique , Combes Sebastien , Finet Jean‐Pierre , Fedorov Alexey Yu. 
Published: August 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
A General and Efficient Route to 3‐Amino‐4‐sulfanylcoumarins via Substitution and Palladium‐Catalyzed Amination of 3‐Bromo‐4‐tosyloxycoumarins.
Authors: Wang Weizi , Ding Qiuping , Fan Renhua , Wu Jie 
Published: August 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Reductive Coupling Reactions of 2‐Nitrochalcones and Their β‐Hydroxyanalogues: New Syntheses of 2‐Arylquinoline and 2‐Aryl‐4‐hydroxyquinoline Derivatives.
Authors: Barros Ana I. R. N. A. , Dias Andre F. R. , Silva Artur M. S. 
Published: August 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
One‐Pot, Multicomponent Route to Pyrazoloquinolizinones.
Authors: Chebanov Valentin A. , Saraev Vyacheslav E. , Desenko Sergey M. , Chernenko Vitaliy N. , Shishikina Svetlana V. , Shishkin Oleg V. , Kobzar Kiril M. , Kappe C. Oliver 
Published: August 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis of 4‐Fluoroalkyl‐Substituted Pyridazines from Fluorinated Diazodiketones.
Authors: Nikolaev Valerij A. , Zakharova Valerija M. , Hennig Lothar , Sieler Joachim 
Published: August 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Microwave‐Assisted Solvent‐Free Synthesis of 3‐Alkyl‐6‐aryl[1,2,4]triazolo[3,4‐b][1,3,4]thiadiazines.
Authors: Hui Xin‐Ping , Wang Ren‐Lin , Zhang Zi‐Yi 
Published: August 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
[4 + 2] Diels—Alder Cycloaddition Reaction of 2‐Benzylidineamino‐4‐phenyl‐1,3‐thiazoles with Sulfene and Their Antifungal Activities.
Authors: Borthakur Susanta Kr. , Boruah Paran , Goswami Birendra N. 
Published: August 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Conversion of Piperidine‐4‐ones into [1,4]‐Diazepan‐5‐ones under Microwave Irradiation Using a Silica Gel Supported NaHSO4 Catalyst.
Authors: Gopalakrishnan M. , Kumar P. Suresh , Thanusu J. , Prabhu C. , Kanagarajan V. 
Published: August 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Novel 1,4‐Benzodiazepine Derivatives with Antiproliferative Properties on Tumor Cell Lines.
Authors: Dourlat Jennifer , Liu Wang‐Qing , Gresh Nohad , Garbay Christiane 
Published: August 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Pd‐Catalyzed Regio‐ and Stereoselective Cyclization—Heck Reaction of Monoesters of 1,2‐Allenyl Phosphonic Acids with Alkenes.
Authors: Yu Fei , Lian Xiongdong , Ma Shengming 
Published: August 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Bioactive Constituents from Chinese Natural Medicines. Part 22. Absolute Structures of New Megastigmane Glycosides, Sedumosides E1 (I), E2, E3 (II), F1, F2, and G, from Sedum sarmentosum (Crassulaceae).
Authors: Morikawa Toshio , Zhang Yi , Nakamura Seikou , Matsuda Hisashi , Muraoka Osamu , Yoshikawa Masayuki 
Published: August 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Diastereoselective Synthesis of α‐Methyl and α‐Hydroxy‐β‐amino Acids via 4‐Substituted‐1,3‐oxazinan‐6‐ones.
Authors: Sleebs Brad E. , Hughes Andrew B. 
Published: August 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Total Synthesis of the Putative Structure of Stemonidine: The Definitive Proof of Misassignment.
Authors: Sanchez‐Izquierdo Francisco , Blanco Pilar , Busque Felix , Alibes Ramon , de March Pedro , Figueredo Marta , Font Josep , Parella Teodor 
Published: August 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Mutagenic, Antimutagenic and Antioxidant Activities of a New Class of β‐Glucoside Hydroxyhydroquinone from Anagallis monelli Growing in Tunisia
Authors: Ammar Samia , Mahjoub Mohamed Ali , Charfi Nesrine , Skandarani Ines , Chekir‐Ghedira Leila , Mighri Zine 
Published: August 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Enzymatic Synthesis and Activity of Novel β‐Lactam Antibiotics. Part 1. Novel Cephalosporins Synthesized by Amination of 2,5‐Dihydroxybenzoic Acid Derivatives Using Fungal Laccases II.
Authors: Mikolasch Annett , et al. et al. 
Published: August 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Low Temperature Synthesis of Nanocrystalline Lanthanum Monoaluminate Powders by Chemical Coprecipitation.
Authors: Kuo Chia‐Liang , Wang Cheng‐Li , Chen Te‐Yuan , Chen Guo‐Ju , Hung I‐Ming , Shih Chi‐Jen , Fung Kuan‐Zong 
Published: August 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
β‐Alkylthio Indolyl Carbinols: Potent Nonsteroidal Antiandrogens with Oral Efficacy in a Prostate Cancer Model.
Authors: Lanter James C. , et al. et al. 
Published: August 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Strategies to Bypass the Taxol Problem. Enantioselective Cascade Catalysis, a New Approach for the Efficient Construction of Molecular Complexity
Authors: Walji Abbas M. , MacMillan David W. C. 
Published: August 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Greener Approaches to Organic Synthesis Using Microreactor Technology
Authors: Mason Brian P. , Price Kristin E. , Steinbacher Jeremy L. , Bogdan Andrew R. , McQuade D. Tyler 
Published: August 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Reactivity Patterns of Cytochrome P450 Enzymes: Multifunctionality of the Active Species, and the Two States—Two Oxidants Conundrum
Authors: Shaik Sason , Hirao Hajime , Kumar Devesh 
Published: August 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Heme to Protein Linkages in Mammalian Peroxidases: Impact on Spectroscopic, Redox and Catalytic Properties
Authors: Zederbauer Martina , Furtmueller Paul G. , Brogioni Silvia , Jakopitsch Christa , Smulevich Giulietta , Obinger Christian 
Published: August 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
N‐Heterocyclic Carbene‐Palladium Complex Catalyzed Oxidative Carbonylation of Amines to Ureas
Authors: Zheng Shu‐Zhan , Peng Xin‐Gao , Liu Jian‐Ming , Sun Wei , Xia Chun‐Gu 
Published: August 2007

AbstractPalladium carbene shows high efficiency without any promoter on oxidative carbonylation of amines to ureas and a new type of palladium carbene complex containing both an aniline and an NHC ligands was found to be the active species for the reaction.
Development of an Indirect Competitive ELISA Based on Polyclonal Antibody for the Detection of Diethylstilbestrol in Water Samples
Authors: Wang Wen‐Jun , Ling Yun , Xu Ting , Gao Hong‐Bin , Sheng Wei , Li Ji 
Published: August 2007

AbstractAn indirect competitive enzyme‐linked immunosorbent assay (icELISA) based on polyclonal antibody for the estrogen diethylstilbestrol (DES) was developed. With this aim, two different haptens mono‐O‐3‐carboxypropyl‐ diethylstilbestrol (DES‐CP) and mono‐O‐carboxymethyldiethylstilbestrol (DES‐CM) with carboxylic group that preserve the molecular structure character of diethylstilbestrol were synthesized. The haptens were conjugated with the carrier proteins bovine serum albumin (BSA) by mixed‐anhydride method for immunogen and conjugated with ovalbumin (OVA) by active ester method for coating antigen. Polyclonal antibodies for diethylstilbestrol were raised by immunizing mice with immune antigen DES‐CP‐BSA. Under optimized system, the lowest limit of detection (LLD) of diethylstilbestrol was 0.01 ng/mL, and IC50 = 1.02 ng/mL. Its analogs were tested and no obvious cross‐reactivity was found to anti‐diethylstilbestrol antibody. DES‐fortified water samples were determined by simple dilution to diminish the matrix effect. The comparison between the amount of DES estimated by ELISA and the amount added indicates good agreement for all water samples tested, with mean recovery values ranging from 86% to 120.2%.
Isolation and Identification of the Major Chemical Components Found in the Upper Parts of Teucrium Polium Plants Grown in Khuzestan Province of Iran
Authors: Ashnagar Alamdar , Gharib naseri Nahid , Foroozanfar Shahla 
Published: August 2007

AbstractTeucrium polium is a dwarf sub‐shrub usually 30–60 cm high with many branches, which is fairly distributed throughout Iran, with its flowering being season mainly from April to July. The plant was collected during its flowering season in Baghmalek region in the North‐East of Khuzestan province, Iran. After the identification of the genus, species and variety of the plant, the dried whole plant (flowers, fruits and the leaves) was steam distilled with different methods. The isolated essential oil was dried over anhydrous sodium sulphate and stored at 4–6 °C. Analysis of the essential oil was carried out by GC‐MS technique. At least 10 major components were identified (3‐carene/α‐pinene, β‐phellandrene, limonene, germacrene, β‐bourbonene, β‐caryophylene, (‐muurolene, γ‐elemene, spathulenol, β‐eudesmol) (totally 97.02%). Also, successive TLC and column chromatography of the essential oil resulted in the separation of four fractions. Based upon 1H NMR, IR and mass spectra, the fractions with Rf0.12 and 0.93 were determined as guaiol and a mixture of α‐pinene, β‐phellandrene and limonene, respectively.
Artesunate and Dihydroartemisinin (DHA): Unusual Decomposition Products Formed under Mild Conditions and Comments on the Fitness of DHA as an Antimalarial Drug
Authors: Haynes Richard K. , Chan Ho‐Wai , Lung Chung‐Man , Ng Nga‐Chun , Wong Ho‐Ning , Shek Lai Yung , Williams Ian D. , Cartwright Anthony , Gomes Melba F. 
Published: August 2007

AbstractArtesunate drug substance, for which a rectal capsule formulation is under development for the treatment of severe malaria, when heated at 100 °C for 39 h gives β‐artesunate, artesunate dimers, 9,10‐anhydrodihydroartemisinin (glycal), a DHA β‐formate ester, and smaller amounts of other products that arise via intermediate formation of dihydroartemisinin (DHA) and subsequent thermal degradation. Solid DHA at 100 °C provides an epimeric mixture of a known peroxyhemiacetal, arising via ring opening to a hydroperoxide and re‐closure, smaller amounts of a 3:1 mixture of epimers of a known tricarbonyl compound, and a single epimer of a new dicarbonyl compound. The latter arises via homolysis of the peroxide and an ensuing cascade of α‐cleavage reactions which leads to loss of formic acid incorporating the C10 carbonyl group of DHA exposed by this 'unzipping' cascade. The tricarbonyl compound that arises via peroxide homolysis and extrusion of formic acid from a penultimate hydroxyformate ester incorporating C12 of the original DHA, is epimeric at the exocyclic 1′′‐aldehyde, and not in the cyclohexanone moiety. It is converted into the dicarbonyl compound by peroxide‐induced deformylation. The dicarbonyl compound is not formed during anhydrous ferrous bromide mediated decomposition of DHA at room temperature, which provides the 1′′‐R epimer of the tricarbonyl compound as the dominant product; this equilibrates at room temperature to the 3:1 mixture of epimers of the tricarbonyl compound obtained from thermolysis. Each of artesunate and DHA decomposes readily under aqueous acidic conditions to provide significant amounts of the peroxyhemiacetal, which, like DHA, decomposes to the inert end product 2‐deoxyartemisinin under acidic or basic conditions. DHA and the peroxyhemiacetal are the principal degradants in aged rectal capsule formulations of artesunate. TGA analysis and thermal degradation of DHA reveals a thermal lability which would pose a problem not only in relation to ICH stability testing guidelines, but in the use of DHA in fixed formulations currently under development. This thermolability coupled with the poor physicochemical properties and relative oral bioavailability of DHA suggests that it is inferior to artesunate in application as an antimalarial drug.
Identification of Hexameric Water and Hybrid Water–Chloride Clusters Intercalated in the Crystal Hosts of (Imidoylamidine)nickel(II) Complexes
Authors: Kopylovich Maximilian N. , Tronova Ekaterina A. , Haukka Matti , Kirillov Alexander M. , Kukushkin Vadim Yu. , Fraústo da Silva João J. R. , Pombeiro Armando J. L. 
Published: August 2007

AbstractTwo structurally related bis(imidoylamidine or 1,3,5‐triazapentadiene)nickel(II) compounds {Ni[HN=C(3‐py)NC(3‐py)=NH]2}·H2O·MeOH (1) and [Ni{HN=C(3‐py)N(H)C(3‐py)=NH}2]Cl2 (2) with symmetrical 3‐pyridyl (3‐py) substituents have been prepared by direct 2‐butanone oxime mediated transformation of 3‐cyanopyridine in the presence of Ni(MeCO2)2·4H2O or NiCl2·2H2O, respectively. Compounds 1 and 2 have been characterized by elemental analyses, IR, 1H and 13C{1H} NMR spectroscopy, and FAB+ mass spectrometry, while their slow recrystallization in air from organic solvents revealed a high affinity for water and resulted in the formation of the derived compounds [Ni{HN=C(3‐py)NC(3‐py)=NH}2]·6H2O (1′) and [Ni{HN=C(3‐py)N(H)0.5C(3‐py)=NH}2]Cl·2H2O (2′). Single‐crystal X‐ray diffraction analyses allowed the identification of discrete hexameric water or hybrid water–chloride clusters hosted by the crystal matrixes of 1′ and 2′, respectively. Both the (H2O)6 and [(H2O)4(Cl)2]2– clusters possess similar geometries and consist of cyclic planar tetranuclear (H2O)4 or [(H2O)2(Cl)2]2– cores with two dangling water molecules. These water associates occupy voids in the crystal cells and display extensive H‐bonding interactions with monomeric nickel–organic units, thus playing a key role in the formation of 3D hydrogen‐bonded supramolecular assemblies. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)