bluuebunny/crossref_metadata_2025 huggingface dataset:
ChemInform Abstract: Syntheses, Crystal Structures, and Physical Properties of La5Cu6O4S7 and La5Cu6.33O4S7.
Authors: Chan George H. , Liu Ming‐Ling , Chen Li‐Dong , Huang Fu‐Qiang , Bugaris Daniel E. , Wells Daniel M. , Ireland John R. , Hersam Mark C. , Van Duyne Richard P. , Ibers James A.
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract 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 Low Temperature Magnetization and Neutron Diffraction Study of Ca2NiWO6.
Authors: Chakraborty Keka R. , Das A. , Krishna P. S. R. , Yusuf S. M. , Patwe S. J. , Achary S. N. , Tyagi A. K.
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Phase Equilibria of the Co—Mo—Ti System at 950 °C.
Authors: Xu Honghui , Du Yong , Zhang Lijun , Li Shitong , Jin Zhanpeng
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract 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, Raman Spectra and Crystal Structures of [Cu(XeF2)n](SbF6)2 (n = 2, 4).
Authors: Mazej Zoran , Goreshnik Evgeny
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Chiral Enhancement in Diethyl Malonate Addition by Morphosynthesized L‐Proline Mesoporous Silica.
Authors: Prasetyanto Eko Adi , Lee Seung‐Cheol , Jeong Sung‐Min , Park Sang‐Eon
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Highly Efficient, Base‐Catalyzed, Intramolecular Hydroamination of Non‐Activated Olefins.
Authors: Quinet Coralie , Jourdain Pierre , Hermans Christophe , Ates Ali , Lucas Isabelle , Marko Istvan E.
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Efficient and Solvent‐Free Preparation of Formate Esters from Alcohols under Microwave Irradiation.
Authors: Park Hee Joong , Lee Jong Chan
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Ionene‐Supported Peroxodisulfates: Polymeric Reagents for the Oxidative Deprotection of TMS and THP Ethers and Oxidative Cleavage of the C=N Bond in Water.
Authors: Lakouraj Moslem Mansour , Tajbakhsh Mahmood , Ramzanian‐Lehmali Farhad , Ghodrati Keyvan
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: In situ Generation of Mes2Mg as a Non‐nucleophilic Carbon‐Centered Base Reagent for the Efficient One‐Pot Conversion of Ketones of Silyl Enol Ethers.
Authors: Kerr William J. , Watson Allan J. B. , Hayes Douglas
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract 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 Organocatalytic Michael Addition of Aldehydes to Nitroethylene: Efficient Access to γ2‐Amino Acids.
Authors: Chi Yonggui , Guo Li , Kopf Nathan A. , Gellman Samuel H.
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: C2‐Symmetric Chiral Malonamides for Asymmetric Michael Reaction.
Authors: Kim Sung‐Ji , Lee Kyoungyim , Jew Sang‐sup , Park Hyeung‐geun , Jeong Byeong‐Seon
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Utility of Dysprosium Diiodide and Metallic Dysprosium as Reductants in Cyclopropanation Reactions of Alkenes with Dichloromethane.
Authors: Xiang Xu , Shen Quansheng , Wang Jialiang , Zhu Zhenyu , Huang Wen , Zhou Xigeng
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract 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 Mono‐ and 1,3‐Disubstituted Allenes from Propargylic Amines via Palladium‐Catalyzed Hydride‐Transfer Reaction.
Authors: Nakamura Hiroyuki , Ishikura Makoto , Sugiishi Tsuyuka , Kamakura Takaya , Biellmann Jean‐Francois
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract 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 Arylallenes by Palladium‐Catalyzed Retro‐Propargylation of Homopropargyl Alcohols.
Authors: Hayashi Sayuri , Hirano Koji , Yorimitsu Hideki , Oshima Koichiro
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Catalyst Self‐Adaptation in Conjugate Addition to Nitroalkenes and Nitroacrylates: Instant Chirality Control in Diphenylmethane‐Based Phosphoramidite Ligands.
Authors: Wakabayashi Kazuki , Aikawa Kohsuke , Kawauchi Susumu , Mikami Koichi
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract 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 Thiocarbonylation of Iodoarenes with Thiols in Phosphonium Salt Ionic Liquids.
Authors: Cao Hong , McNamee Laura , Alper Howard
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: (S)‐Pyrrolidine Sulfonamide Catalyzed Asymmetric Direct Aldol Reactions of Aryl Methyl Ketones with Aryl Aldehydes.
Authors: Zhang Shilei , et al. et al.
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract 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, Crystal Structure, Solid Photochromic Properties and Light‐Induced Radical Behavior of Bis{3‐[alkyl/(p‐alkoxyphenyl)]‐3‐hydroxyindan‐1‐on‐2‐ylidene} Derivatives.
Authors: Han Jie , Wang Chang‐Qing , Wei Yong‐Heng , Pang Mei‐Li , Meng Ji‐Ben
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Urea Derivatives Are Highly Active Catalysts for the Base‐Mediated Generation of Terminal Epoxides from Aldehydes and Trimethylsulfonium Iodide.
Authors: Kavanagh Sarah A. , Piccinini Alessandro , Fleming Eimear M. , Connon Stephen J.
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract 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 2,4,5‐Trisubstituted 3‐Fluorofurans via Sequential Iodocyclization and Cross‐Coupling of gem‐Difluorohomopropargyl Alcohols.
Authors: Arimitsu Satoru , Jacobsen Jesse M. , Hammond Gerald B.
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract 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 Oxa‐Pictet—Spengler Reaction: A Highlight on the Different Efficiency Between Isochroman and Phthalan or Homoisochroman Derivative Syntheses.
Authors: Guiso Marcella , Betrow Abdulhakem , Marra Carolina
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: One‐Pot Synthesis of 2,3‐Disubstituted Benzo[b]thiophene Derivatives from 2‐Mercaptophenyl Ketones.
Authors: Kobayashi Kazuhiro , Nakamura Daizo , Fukamachi Shuhei , Konishi Hisatoshi
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Reaction of 1,5‐Diaryl‐3‐hydroxy‐4‐methylsulfonyl‐3‐pyrrolin‐2‐ones with Urea, Hydrazine, Ethylenediamine, and o‐Phenylenediamine.
Authors: Gein V. L. , Kataeva A. V. , Gein L. F.
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Three‐Component Coupling Reactions of Isoquinolines, Dimethyl Acetylenedicarboxylate and Indoles: A Facile Synthesis of 3‐Indolyl‐1,2‐dihydro‐2‐isoquinolinyl‐2‐butenedioate.
Authors: Yadav J. S. , Reddy B. V. Subba , Yadav Nagendra Nath , Gupta Manoj K.
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract 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 1,1,3,3‐Tetraalkylisoindolines Using a Microwave‐Assisted Grignard Reaction.
Authors: Foitzik Richard C. , Bottle Steven E. , White Jonathan M. , Scammells Peter J.
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Regioselective Formylation of Pyrazolo[3,4‐b]pyridine and Pyrazolo[1,5‐a]pyrimidine Systems Using Vilsmeier—Haack Conditions.
Authors: Quiroga Jairo , Trilleras Jorge , Insuasty Braulio , Abonia Rodrigo , Nogueras Manuel , Cobo Justo
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract 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 a Few Novel Bioactive 2‐Substituted Amino‐5‐indol‐3‐oyl‐4‐phenylthiazoles.
Authors: Thomas K. K. , Reshmy R. , Ushadevi K. S.
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: LiBr‐Catalyzed, Microwave‐Enhanced Synthesis of 5‐Arylidene Rhodanine under Solvent‐Free Conditions.
Authors: Saini Anil , Bhatti Ravinder S. , Sandhu Jagir S.
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract 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 Efficient One‐Pot Synthesis of 3‐Substituted‐5‐amino‐1,2,4‐thiadiazoles from Isothiocyanates and Amidines.
Authors: Wu Yong‐Jin , Zhang Yunhui
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract 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 Heterogeneous Strong Basic Mg/La Mixed Oxide Catalyst for Efficient Synthesis of Polyfunctionalized Pyrans.
Authors: Babu N. Seshu , Pasha Nayeem , Rao K. T. Venkateswara , Prasad P. S. Sai , Lingaiah N.
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract 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 Reduction of 2‐Substituted Tetrahydropyran‐4‐ones Using Daucus carota Plant Cells.
Authors: Yadav J. S. , Reddy B. V. Subba , Sreelakshmi Ch. , Kumar G. G. K. S. Narayana , Rao A. Bhaskar
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: o‐Quinone Methide Based Approach to Isoflavans: Application to the Total Syntheses of Equol, 3′‐Hydroxyequol and Vestitol.
Authors: Gharpure Santosh J. , Sathiyanarayanan A. M. , Jonnalagadda Prasad
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Microwave‐Assisted Synthesis and Characterization of Some New Annulated Pyrimidinone Derivatives.
Authors: Sancheti A. , Swarnkar N. , Soni M. D. , Vardia J. , Punjabi P. B. , Ameta Suresh C.
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Zinc‐Catalyzed Silylation of Terminal Alkynes
Authors: Rahaim Ronald J. Jr. , Shaw Jared T.
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract 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 Design Concept of Long‐Wavelength Fluorescent Analogues of Rhodamine Dyes: Replacement of Oxygen with Silicon Atom.
Authors: Fu Meiyan , Xiao Yi , Qian Xuhong , Zhao Defeng , Xu Yufang
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: First Asymmetric Total Synthesis of (+)‐Curcutetraol.
Authors: Zhang Chenxia , Ito Suguru , Hosoda Naoya , Asami Masatoshi
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Two Novel Asymmetric Eremophilane Dimers from the Roots of Ligularia virgaurea.
Authors: Zhang Zhan‐Xin , Wang Chun‐Ming , Fei Dong‐Qing , Jia Zhong‐Jian
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract 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 Facile Synthesis of a Series of Tryptophan Derivatives.
Authors: Blaser Georg , Sanderson John M. , Batsanov Andrei S. , Howard Judith A. K.
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Thiogalactosides: Synthesis of S‐Tetra‐O‐acetyl‐β‐D‐galactosyl‐1‐aryl Isothiocarbamides (III)
Authors: Gabhe B. S. , Korpe G. V. , Deshmukh S. P.
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Novel Bibenzyl Derivatives from the Tubers of Bletilla striata
Authors: Feng Jia‐Quan , Zhang Ru‐Jun , Zhao Wei‐Min
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Discovery and Antibacterial Activity of Lucensimycin C from Streptomyces lucensis.
Authors: Singh Sheo B. , Zink Deborah L. , Herath Kithsiri B. , Salazar Oscar , Genilloud Olga
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: MM‐GB/SA Rescoring of Docking Poses in Structure‐Based Lead Optimization.
Authors: Guimaraes Cristiano R .W. , Cardozo Mario
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Probing the Structures of Leishmanial Farnesyl Pyrophosphate Synthases: Homology Modeling and Docking Studies.
Authors: Mukherjee Prasenjit , Desai Prashant V. , Srivastava Anuradha , Tekwani Babu L. , Avery Mitchell A.
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Technique for Generating Three‐Dimensional Alignments of Multiple Ligands from One‐Dimensional Alignments.
Authors: Anghelescu Andrei V. , DeLisle Robert K. , Lowrie Jeffrey F. , Klon Anthony E. , Xie Xiaoming , Diller David J.
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Structure, Porosity, and Redox in Porous Manganese Oxide Octahedral Layer and Molecular Sieve Materials
Authors: Suib Steven L.
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract 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 Properties of 5‐Pyrrolyl‐cytidine and Uridine Derivatives
Authors: Miyata Kenichi , Mineo Ryouta , Tamamushi Ryuji , Taguchi Haruhiko , Seio Kohji , Sekine Mitsuo
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Solid‐Phase Synthesis of SiRNA Oligonucleotides
Authors: Beaucage Serge L.
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Bis‐Phosphorus Stabilized Carbene Complexes
Authors: Cantat Thibault , Mezailles Nicolas , Auffrant Audrey , Le Floch Pascal
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Development of Anaplastic Lymphoma Kinase (ALK) Small‐Molecule Inhibitors for Cancer Therapy
Authors: Li Rongshi , Morris Stephan W.
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Physical Organic Chemistry on the Brain
Authors: Dougherty Dennis A.
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Extended Lifetime Biofuel Cells
Authors: Moehlenbrock Michael J. , Minteer Shelley D.
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: NMR Spectroscopy
Authors: Hunger Michael , Brunner Eike
Published: July 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Targeting the Folate Receptor (FR): Imaging and Cytotoxicity of ReI Conjugates in FR‐Overexpressing Cancer Cells
Authors: Viola‐Villegas Nerissa , Rabideau Amy E. , Cesnavicious Justin , Zubieta Jon , Doyle Robert P.
Published: July 2008

The synthesis, characterization, in vitro imaging, and cytotoxic properties of a new folate conjugate of rhenium(I) are reported. The conjugate [FA‐PEG‐BQAV‐Re(CO)3]+ (γ‐4) was screened against an adriamycin‐ and cisplatin‐resistant human ovarian cancer cell line (A2780/AD) that overexpresses the folate receptor (FR). Compound γ‐4 was internalized by a folate‐receptor‐mediated endocytotic pathway, which results in internal accumulation of γ‐4. This was contrasted with a FR‐negative Chinese hamster ovary cell line in which no internalization of γ‐4 was observed. γ‐4 was found to be cytotoxic with IC50 values of 189 and 78 μM at 6 and 24 h, respectively, toward the FR‐positive cell line. This is in contrast to the IC50 value of 502 μM at 6 h and 84 μM at 24 h for cisplatin in the same cell line, with a significantly greater toxicity at the earlier time point. The cytotoxicity of γ‐4 as explained by interactions that occur between the rhenium(I) complex moiety and DNA is described.
Microstructuring of Polystyrene Surfaces with Nonsolvent Sessile Droplets
Authors: Pericet‐Camara Ramon , Bonaccurso Elmar , Graf Karlheinz
Published: July 2008

Herein, we study the microstructuring of toluene‐vapor‐softened polystyrene surfaces with nonsolvent sessile droplets. Arrays of microvessels are obtained by depositing non‐evaporating droplets of ethylene glycol/water on the original polystyrene surfaces and subsequently exposing them to saturated toluene vapor. The droplets act as a mask on the polymer, thereby impeding the toluene vapor to diffuse and soften the polystyrene surface below them. Alternatively, the formation of microcraters at random positions—with an average depth‐to‐width aspect ratio of 0.5 and a diameter as small as 1.5 μm—is achieved by condensing water droplets on a softened polystyrene surface. The cross‐sections of the microvessels and the contact angle of the sessile water droplets suggest that the structures are formed by the combined action of the Laplace pressure at the bottom of the droplet and the surface tension acting at the three‐phase contact line of the droplets. As a support, the rim height and the depth of the microvessels are fitted with an elastic theory to provide Young’s modulus of the softened polystyrene surface.
Micelles as Containers for Self‐Assembled Nanodevices: A Fluorescent Sensor for Lipophilicity
Authors: Chirico Giuseppe , Collini Maddalena , D'Alfonso Laura , Denat Franck , Diaz‐Fernandez Yuri A. , Pasotti Luca , Rousselin Yoann , Sok Nicolas , Pallavicini Piersandro
Published: July 2008

Potentiometric titrations, fluorescence versus pH titrations, dynamic light scattering and fluorescence polarization anisotropy studies demonstrate that inside the nanodimensioned Triton X‐100 micelles, 1‐pyrenecarboxylic acid, PCOO−, forms an apical complex with the Zn2+ cation encircled by a lipophilic cyclen ligand and hugely increasing its fluorescence. The ability of the Zn2+‐cyclen‐PCOO− complex plus its micellar container to act as a fluorescent sensor to evaluate the lipophilicity of molecular species is demonstrated on the fatty acid series CH3(CH2)xCOOH (x=0–16). At pH 7.4 a decrease in fluorescence is observed on the addition of fatty acids that is directly related to their chain length, that is, to their tendency to enter the micellar containers, where they dislocate PCOO− from the Zn2+ centre. The independent determination of fatty acid pKa values in the presence of Triton X‐100 micelles confirms that our fluorescent micellar device is capable of sensing their lipophilicity.
Experimental determination of sample stream focusing with fluorescent dye
Authors: Taylor Jay , Stubley G. D. , Ren Carolyn L.
Published: July 2008

This study aims to develop an experimental method for determining the focused‐sample stream width in microfluidic chips. The focused‐sample stream width in the junction of a cross‐linked microchannel is determined by the distance between the two streamlines dividing the focusing sheath streams and the sample stream, which should be insensitive to the sample properties. However, the commonly used FWHM intensity method is dependent on the dye properties and cannot be used to estimate the sample focusing effects very accurately. The proposed method is based upon the fact that the cross‐stream concentration profile of the sample stream in a region downstream of the junction matches the Gaussian distribution. Therefore, the width of the focused sample stream can be estimated from the channel widths and the variance and maximum concentration of the experimentally measured concentration profile. To validate this method, fluorescein dye has been used to obtain the concentration profile. It has been shown that the proposed method is independent of the fluorescent dye properties. Comparison between the proposed method, FWHM method, and some reported analytical methods also validates the proposed method.
Protein separation using preparative‐scale dynamic field gradient focusing
Authors: Tracy Noah I. , Ivory Cornelius F.
Published: July 2008

Dynamic field gradient focusing uses an electric field gradient to separate and concentrate proteins in native buffers. A prototype preparative‐scale dynamic field gradient focusing apparatus reproducibly separated hemoglobin and bovine serum albumin with a mean resolution of 2.64 ± 0.503. Run‐to‐run variations in the hemoglobin's focal point and peak width appeared to be related to fluctuations in the shape of the electric field, rather than the 5% accuracy of the pump that provided the counter‐flow in the separation annulus. The variation in the electric field gradient was probably due to the formation and expansion of an ion‐depleted region at the top of the separation annulus.
Evaluation of confidence and reproducibility in quantitative proteomics performed by a capillary isoelectric focusing‐based proteomic platform coupled with a spectral counting approach
Authors: Balgley Brian M. , Wang Weijie , Song Tao , Fang Xueping , Yang Li , Lee Cheng S.
Published: July 2008

Multidimensional separations of the peptides resulting from enzymatic digestions of complex protein mixtures prior to MS/MS, namely shotgun proteomics, is increasingly utilized for large‐scale identification and quantitation of proteins. Inherent to the performance of proteomic measurements is the resolving power of each of the separations both separately and in combination. By simply raising the number of CIEF fractions, the resulting enhancement in the overall peak capacity of combined CIEF/nano‐RPLC separations greatly reduces the complexity of eluted peptides prior to MS detection and sequencing and increases the proteome coverage. The capabilities of the CIEF‐based proteome platform coupled with the spectral counting approach to confidently and reproducibly quantify proteins and changes in protein expression levels among samples are evaluated. Analytical reproducibility of relative protein abundance is determined to exhibit a Pearson R2 value greater than 0.99 and a CV of 14.1%. The platform is demonstrated to be capable of measuring changes in protein expression as low as 1.5‐fold, with confidence following multiple testing adjustment.
Analyzing dynamic performance of stressed power systems in vicinity of instability by modal series method
Authors: Naghshbandy Ali H. , Shanechi Hasan Modir , Kazemi Ahad , Pourfar Iman
Published: July 2008

Highly stressed power systems exhibit complex dynamic behaviors such as inter‐area oscillations when subjected to large disturbances. In such conditions, nonlinear effects have dominant role in determining dynamic response of the systems. In this paper by using modal series method, dynamic behaviors of the stressed power systems in severe conditions and near instability have been studied. Also two measures, mode dominance measure (MDM) and most perturbed machine factor (MPF) have been introduced. They determine the most dominant modes and identify the most perturbed generators when the system is subjected to a given fault. Contribution factors have been used to show the links between identified modes and machines from the analysis. Time domain simulation has been helped for validation of the results. By using similarity transformation, state variables have been represented in modal space and utilized to check the results. The studies are carried out on the IEEE 50‐generator test system which demonstrates a wide range of dynamic characteristics at different loading levels and fault scenarios. Copyright © 2008 John Wiley & Sons, Ltd.
Diet‐induced insulin resistance impairs hippocampal synaptic plasticity and cognition in middle‐aged rats
Authors: Stranahan Alexis M. , Norman Eric D. , Lee Kim , Cutler Roy G. , Telljohann Richard S. , Egan Josephine M. , Mattson Mark P.
Published: July 2008

Overall dietary energy intake, particularly the consumption of simple sugars such as fructose, has been increasing steadily in Western societies, but the effects of such diets on the brain are poorly understood. Here, we used functional and structural assays to characterize the effects of excessive caloric intake on the hippocampus, a brain region important for learning and memory. Rats fed with a high‐fat, high‐glucose diet supplemented with high‐fructose corn syrup showed alterations in energy and lipid metabolism similar to clinical diabetes, with elevated fasting glucose and increased cholesterol and triglycerides. Rats maintained on this diet for 8 months exhibited impaired spatial learning ability, reduced hippocampal dendritic spine density, and reduced long‐term potentiation at Schaffer collateral—CA1 synapses. These changes occurred concurrently with reductions in levels of brain‐derived neurotrophic factor in the hippocampus. We conclude that a high‐calorie diet reduces hippocampal synaptic plasticity and impairs cognitive function, possibly through BDNF‐mediated effects on dendritic spines. Published 2008 Wiley‐Liss, Inc.
6‐(Diazomethyl)‐1,3‐bis(methoxymethyl)uracil, Synthesis and Transformation into Annulated Pyrimidinediones
Authors: Zhang Fuyi , Kulesza Anna , Rani Shikha , Bernet Bruno , Vasella Andrea
Published: July 2008

6‐(Diazomethyl)‐1,3‐bis(methoxymethyl)uracil (5) was prepared from the known aldehyde 3 by hydrazone formation and oxidation. Thermolysis of 5 and deprotection gave the pyrazolo[4,3‐d]pyrimidine‐5,7‐diones 7a and 7b. Rh2(OAc)4 catalyzed the transformation of 5 into to a 2 : 1 (Z)/(E) mixture of 1,2‐diuracilylethenes 9 (67%). Heating (Z)‐9 in 12n HCl at 95° led to electrocyclisation, oxidation, and deprotection to afford 73% of the pyrimido[5,4‐f]quinazolinetetraone 12. The Rh2(OAc)4‐catalyzed reaction of 5 with 3,4‐dihydro‐2H‐pyran and 2,3‐dihydrofuran gave endo/exo‐mixtures of the 2‐oxabicyclo[4.1.0]heptane 13 (78%) and the 2‐oxabicyclo[3.1.0]hexane 15 (86%), Their treatment with AlCl3 or Me2AlCl promoted a vinylcyclopropane–cyclopentene rearrangement, leading to the pyrano‐ and furanocyclopenta[1,2‐d]pyrimidinediones 14 (88%) and 16 (51%), respectively. Similarly, the addition product of 5 to 2‐methoxypropene was transformed into the 5‐methylcyclopenta‐pyrimidinedione 18 (55%). The Rh2(OAc)4‐catalyzed reaction of 5 with thiophene gave the exo‐configured 2‐thiabicyclo[3.1.0]hexane 19 (69%). The analoguous reaction with furan led to 8‐oxabicyclo[3.2.1]oct‐2‐ene 20 (73%), and the reaction with (E)‐2‐styrylfuran yielded a diastereoisomeric mixture of hepta‐1,4,6‐trien‐3‐ones 21 (75%) that was transformed into the (1E,4E,6E)‐configured hepta‐1,4,6‐trien‐3‐one 21 (60%) at ambient temperature.
Squalene‐Derived Triterpene Polyethers from the Red Alga Laurencia omaezakiana
Authors: Matsuo Yoshihide , Suzuki Minoru , Masuda Michio , Iwai Toshiyuki , Morimoto Yoshiki
Published: July 2008

In our continuing search on halogenated metabolites from species of the red algal genus Laurencia, a novel squalene‐derived triterpene polyether, named omaezakianol (2), was isolated from Laurencia omaezakiana Masuda along with 15,16‐anhydrothyrsiferol (3). Their structures were determined by spectral and chemical methods.
Five New Aromatic Glycosides from Carthamus tinctorius
Authors: Zhou Yu‐Zhi , Chen Huan , Qiao Li , Lu Xuan , Hua Hui‐Ming , Pei Yue‐Hu
Published: July 2008

Five new aromatic glycosides, 1–5, named as carthamosides B4–B8, together with three known compounds, 4′‐(hydroxyphenacyl)‐β‐D‐glucopyranoside (6), benzyl‐O‐α‐L‐rhamnopyranosyl‐(1→6)‐β‐D‐glucopyranoside (7), and 4‐(methoxybenzyl)‐O‐β‐D‐glucopyranoside (8), have been isolated from the air‐dried flower of Carthamus tinctorius. Their structures were identified on the basis of chemical and spectroscopic methods.
Triumfettamide and Triumfettoside Ic, Two Ceramides and Other Secondary Metabolites from the Stems of WildTriumfetta cordifoliaA. Rich. (Tiliaceae)
Authors: Pergaud Sandjo Louis , Hannewald Paul , Yemloul Mehdi , Kirsch Gilbert , Tchaleu Ngadjui Bonaventure
Published: July 2008

Two new ceramides, triumfettamide (1) and triumfettoside Ic (2), characterized as (2R,6Z)‐2‐hydroxy‐N‐[(2S,3S,4R)‐1,3,4‐trihydroxyhexacosan‐2‐yl]heptadec‐6‐enamide and (2R)‐N‐{(1S,2R,3E,6Z, 9Z,12Z,15Z)‐1‐[(β‐D‐glucopyranosyloxy)methyl]‐2‐hydroxyheneicosa‐3,6,9,12,15‐pentaen‐1‐yl}‐2‐hydroxytetradecanamide, respectively, were isolated from the stems ofTriumfetta cordifoliaA. Rich.besides eight known secondary metabolites identified as heptadecanoic acid,β‐sitosterol glucopyranoside, friedelin, lupeol, betulin, maslinic acid, 2‐hydroxyoleanolic acid and the mixture of stigmasterol andβ‐sitosterol. Their structures were determined on the basis of spectroscopic methods as well as HR‐MALDI‐FT‐ICR‐MS analysis, chemical transformation, and by comparison of their physical and spectral data with those reported in the literature and with authentic specimens for some known compounds. Five pentacyclic triterpenoids, friedelin, lupeol, betulin, maslinic acid, and 2‐hydroxyoleanolic acid, have been isolated fromTriumfettagenus for the first time.
New Antifungal Terpenoid Glycosides from Alibertia edulis (Rubiaceae)
Authors: Cândida da Silva Viviane , Soares Mendes Giannini Maria José , Carbone Virginia , Piacente Sonia , Pizza Cosimo , da Silva Bolzani Vanderlan , Nasser Lopes Márcia
Published: July 2008

Phytochemical investigation from the stems of Alibertia edulis led to the isolation and identification of a new iridoid 6β‐hydroxy‐7‐epigardoside methyl ester (1) and a new saponin 3β‐O‐[α‐L‐rhamnopyranosyl‐(1→2)‐O‐β‐D‐glucopyranosyl‐(1→2)‐O‐β‐D‐glucopyranosyl]‐28‐O‐β‐D‐glucopyranoside pomolate (2), along with three known compounds, shanzhiside methyl ester (3), ixoside (4), and 3,4,5‐trimethoxyphenyl 1‐O‐β‐D‐apiofuranosyl‐(1→6)‐O‐β‐D‐glucopyranoside (5). The structures of 1 and 2 were established on the basis of their spectroscopic data. Iridoid 1 and saponin 2 exhibited moderate inhibitory activities against Candida albicans and C. krusei in a dilution assay.
A Convenient and Efficient Method for the Preparation of Unique Fluorophores of Lariat Naphtho‐Aza‐Crown Ethers
Authors: Sharghi Hashem , Ebrahimpourmoghaddam Sakineh
Published: July 2008

New naphtho‐aza‐crown ethers containing different phenolic side‐arms attached through the ortho‐position of the phenol have been prepared under solvent‐free conditions. The starting macrocyclic naphtho‐aza‐crown ether 2 was obtained by treatment of naphthalene dicarboxylic acid diester 1 with diethylenetriamine in EtOH at room temperature for two days without stirring in 77% yield (Scheme 1). Phenolic ligands (3–14) were synthesized by the Mannich reaction of the secondary macrocyclic amine 2 with the substituted phenols using nontoxic and inexpensive CaCl2. This procedure was applied successfully for the synthesis of Mannich bases from simple secondary amines. The CaCl2 powder can be reused up to three times after simple washing with dry acetone.
Experimental and Theoretical Studies on DNA‐Binding and Spectral Properties of ‘Light Switch’ Complexes [Ru(L)2(ppn)]2+ (L=2,2′‐Bipyridine and 1,10‐Phenanthroline; ppn=Pteridino[6,7‐f] [1,10]phenanthroline‐11,13‐diamine)
Authors: Liu Xue‐Wen , Chen Jin‐Can , Hu Xia , Li Hong , Zheng Kang‐Cheng , Ji Liang‐Nian
Published: July 2008

The ligand pteridino[6,7‐f] [1,10]phenanthroline‐11,13‐diamine (ppn) and its RuII complexes [Ru(bpy)2(ppn)]2+ (1; bpy=2,2′‐bipyridine) and [Ru(phen)2(ppn)]2+ (2; phen=1,10‐phenanthroline) were synthesized and characterized by elemental analysis, electrospray MS, 1H‐NMR, and cyclic voltammetry. The DNA‐binding behaviors of 1 and 2 were studied by spectroscopic and viscosity measurements. The results indicate that both complexes strongly bind to calf‐thymus DNA in an intercalative mode, with DNA‐binding constants Kb of (1.7±0.4)⋅106 M−1 and (2.6±0.2)⋅106 M−1, respectively. The complexes 1 and 2 exhibit excellent DNA‐‘light switch’ performances, i.e., they do not (or extremely weakly) show luminescence in aqueous solution at room temperature but are strongly luminescent in the presence of DNA. In particular, the experimental results suggest that the ancillary ligands bpy and phen not only have a significant effect on the DNA‐binding affinities of 1 and 2 but also have a certain effect on their spectral properties. [Ru(phen)2(ppn)]2+(2) might be developed into a very prospective DNA‐‘light switch’ complex. To explain the DNA‐binding and spectral properties of 1 and 2, theoretical calculations were also carried out applying the DFT/TDDFT method.
Nanotubes Made from Deeply Undercooled Cryolite/Alumina Melts
Authors: Korenko Michal , Kucharík Marián , Oboňa Jozef Vincenc , Janičkovič Dušan , Córdoba Rosa , De Teresa José María , Kubíková Blanka
Published: July 2008

The rapid‐solidification processing (by a cooling rate of 105–106 K/s) was used for the preparation of deeply undercooled cryolite/alumina (Na3AlF6/Al2O3) melts. We found a mass of nanotubes on the surface of these undercooled melts. The nanotubes were preferentially located on the defect places of the surface with the following approximate dimensions: base≈100×100 nm, length≈1000 nm. The solidified samples with the nanotubes on the surface were analyzed by scanning electron microscopy (SEM), energy‐dispersive X‐ray spectroscopy (EDX), X‐ray diffraction (XRD), and infrared spectroscopy (IR).
Application of the Alpine 3D model for glacier mass balance and glacier runoff studies at Goldbergkees, Austria
Authors: Michlmayr Gernot , Lehning Michael , Koboltschnig Gernot , Holzmann Hubert , Zappa Massimiliano , Mott Rebecca , Schöner Wolfgang
Published: July 2008

The model for mountain surface processes, Alpine 3D, was applied to the Goldbergkees basin (2·7 km2, 52% glacierized) in the central Austrian Alps to model hourly discharge and glacier mass balance. Alpine 3D is a physically based model which focuses on snow‐ice‐soil energy and mass fluxes (without lateral, gravity driven flows) in rugged terrain. From the records of the Sonnblick observatory, located in the study area, a high‐quality set of meteorological, glaciological and hydrological data could be provided to force and evaluate the model. A 1‐year period was simulated starting from September 2004. The model results were evaluated using observations of the glacier mass balance and discharge at the catchment outlet. The spatial variation of modelled annual net mass balance of Goldbergkees shows good agreement to observed data. Significant deviations occur mainly at locations, which are presumably influenced by avalanche events or drifting snow. The quality of runoff simulation was estimated using the Nash–Sutcliffe model efficiency and the explained variance number. Both criteria demonstrate that the modelled catchment discharge is of satisfactory quality, despite the fact that the local mass balance is not well represented at all grid points. Copyright © 2008 John Wiley & Sons, Ltd.
What do we know about serotonin?
Authors: Jonnakuty Catherine , Gragnoli Claudia
Published: July 2008

The present review focuses on what is known of basic serotonin physiology in the human body. Here, we describe serotonin biochemistry and metabolism and summarize the results of studies that have contributed significantly to our understanding of serotonin physiology. We report the well‐established role of serotonin in cardiovascular, gastrointestinal, and circulatory physiology. Emphasis is placed on the role of serotonin in peripheral physiological systems rather than in the central nervous system. A brief overview is provided on the emerging role of serotonin in novel areas such as bone pathways and glucose uptake. We also report a select few animal studies and animal models that have provided worthwhile contributions to the understanding of serotonin in human physiology. In addition, we summarize the results of large‐scale genetic studies on serotonin and serotonin transporter genes, performed in relation to behavioral and mood disorders. J. Cell. Physiol. 217: 301–306, 2008. © 2008 Wiley‐Liss, Inc.