bluuebunny/crossref_metadata_2025 huggingface dataset:
A Novel Benzofuran Derivative, a New Olean‐Type Triterpene and Other Constituents from Ligularia odontomanes.
Authors: Fei Dong Qing , Wu Gang , Liu Chun Mei , Gao Kun
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Four New Prenylated 2‐Arylbenzofurans from the Root Bark of Artocarpus petelotii
Authors: Shen Hong , Hou Ai‐Jun , Li Ji‐Zong
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Flavonol Galactoside Caffeiate Ester and Homoisoflavones from Caesalpinia millettii Hook. et Arn.
Authors: Chen Ping , Yang Jun‐Shan
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis of Isagarin, a Tetracyclic Naphthoquinone via a Palladium‐Catalyzed Cyclization.
Authors: Ploysuk Chatchawan , Kongkathip Boonsong , Kongkathip Ngampong
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Total Synthesis of the Antibiotic Erypoegin H and Cognates by a PtCl2‐Catalyzed Cycloisomerization Reaction.
Authors: Fuerstner Alois , Heilmann Eike K. , Davies Paul W.
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Reactions of Neomycin B under Mitsunobu Conditions: A Correction of the Literature.
Authors: Quader Sabina , Boyd Sue E. , Jenkins Ian D. , Houston Todd A.
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Ericifolin (I): An Eugenol 5‐O‐Galloylglucoside and Other Phenolics from Melaleuca ericifolia.
Authors: Hussein S. A. M. , Hashim A. N. M. , El‐Sharawy R. T. , Seliem M. A. , Linscheid M. , Lindequist U. , Nawwar M. A. M.
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Stereoselective Total Synthesis of (+)‐Scyphostatin via a π‐Facially Selective Diels—Alder Reaction.
Authors: Takagi Ryukichi , Miyanaga Wataru , Tojo Kengo , Tsuyumine Shinjiro , Ohkata Katsuo
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Studies on Panax Acetylenes: Absolute Structure of a New Panax Acetylene, and Inhibitory Effects of Related Acetylenes on the Growth of L‐1210 Cells.
Authors: Satoh Yoshio , Satoh Mitsuru , Isobe Kimiaki , Mohri Kunihiko , Yoshida Yuki , Fujimoto Yasuo
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis of a Diastereomeric Mixture of (4R,5S,6E,14R)‐ and (4R,5S,6E,14S)‐Melithiazols G.
Authors: Takayama Hiroyuki , Kato Keisuke , Kimura Masayuki , Akita Hiroyuki
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Novel Flavonoids of Thelypteris torresiana.
Authors: Lin An‐Shen , Chang Fang‐Rong , Yen Hsin‐Fu , Bjoerkeborn HannaMaria , Norlen Per , Wu Yang‐Chang
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Glaziovianin A, a New Isoflavone, from the Leaves of Ateleia Glaziovianna and Its Cytotoxic Activity Against Human Cancer Cells.
Authors: Yokosuka Akihito , Haraguchi Mitsue , Usui Takeo , Kazami Sayaka , Osada Hiroyuki , Yamori Takao , Mimaki Yoshihiro
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Total Synthesis of (‐)‐Conocarpan and Assignment of the Absolute Configuration by Chemical Methods.
Authors: Clive Derrick L. J. , Stoffman Elia J. L.
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Facile Synthesis of (‐)‐Ascochlorin Using Palladium‐Catalyzed Three Component Coupling Reaction.
Authors: Aoki Makoto , Kawashima Kenji , Fujihara Hirohisa , Shimizu Isao
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Microwave‐Assisted Synthesis of cAMP Phosphodiesterase Inhibitor 8‐Hydroxy‐6,7‐dimethoxy‐3‐hydroxymethylisocoumarin.
Authors: Saeed Aamer
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Versatile Approach for the Asymmetric Synhesis of (R)‐ and (S)‐Massoialactones.
Authors: Sabitha Gowravaram , Gopal P. , Yadav J. S.
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Virtual Screening Studies to Design Potent CDK2‐Cyclin A Inhibitors.
Authors: Vadivelan S. , Sinha Barij Nayan , Irudayam Sheeba Jem , Jagarlapudi Sarma A. R. P.
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Novel Virtual Screening Protocol Based on the Combined Use of Molecular Modeling and Electron‐Ion Interaction Potential Techniques to Design HIV‐1 Integrase Inhibitors.
Authors: Botta Maurizio , et al. et al.
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
DNA Minor Groove Pharmacophores Describing Sequence Specific Properties.
Authors: Spitzer Gudrun M. , Wellenzohn Bernd , Laggner Christian , Langer Thierry , Liedl Klaus R.
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Atypical Protonation States in the Active Site of HIV‐1 Protease: A Computational Study.
Authors: Czodrowski Paul , Sotriffer Christoph A. , Klebe Gerhard
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Formation and Characterization of Lu Silicate Nanoparticles in Amorphous SiO2.
Authors: Kepinski Leszek , Maczka Miroslaw , Drozd Marek
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
α‐Substituted 1‐Aryl‐3‐dimethylaminopropanone Hydrochlorides: Potent Cytotoxins Towards Human WiDr Colon Cancer Cells.
Authors: Pati Hari Narayan , Das Umashankar , Ramirez‐Erosa Irving Javier , Dunlop Donna Mae , Hickie Robert Allan , Dimmock Jonathan Richard
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Hydrothermal Synthesis of Nanostructures.
Authors: Djurisic Aleksandra B. , Xi Yan Y. , Hsu Yan F. , Chan Wai K.
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Environmentally Friendly Methodologies of Nanostructure Synthesis.
Authors: Mao Yuanbing , Park Tae‐Jin , Zhang Fen , Zhou Hongjun , Wong Stanislaus S.
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Understanding Au‐Catalyzed Low‐Temperature CO Oxidation
Authors: Kung Mayfair C. , Davis Robert J. , Kung Harold H.
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
On the Progress of Combustion Synthesis of Si3N4 Ceramic: From Laboratory Research to Industrial Production
Authors: Li Jiang‐Tao , Yang Yun , Jin Hai‐Bo
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
On the Photolysis of Simple Anions and Neutral Molecules as Sources of O‐/OH, SOx‐ and Cl in Aqueous Solution
Authors: Herrmann Hartmut
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Structural Chemistry of Borophosphates, Metalloborophosphates, and Related Compounds
Authors: Ewald Bastian , Huang Ya‐Xi , Kniep Ruediger
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Optical Effects of Metallic Nanoparticles
Authors: Dahmen Christian , von Plessen Gero
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Chemistry in Crop Protection. Part 4. Pyrazole Chemistry in Crop Protection
Authors: Lamberth Clemens
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Organotin Compounds Containing Four‐Membered Distannoxane [Sn(μ‐OH)]2 Units
Authors: Chandrasekhar Vadapalli , Singh Puja , Gopal Kandasamy
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Hybrid Usage of Computational Tools in Drug Synthesis
Authors: Atilgan Canan , Aviyente Viktorya
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Molecular Photochemionics
Authors: Ballardini Roberto , Ceroni Paola , Credi Alberto , Gandolfi M. Teresa , Maestri Mauro , Semararo Monica , Venturi Margherita , Balzani Vincenzo
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Onium‐poly(hydrogen Fluorides): Convenient Ionic Liquids for Fluorination and Acid Catalysis
Authors: Olah George A. , Prakash G. K. Surya , Reddy V. Prakash
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Enantioselective Metal‐Catalyzed Oxidation Processes
Authors: Black David StC.
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Organic Chemistry in Water: Green and Fast
Authors: Engberts Jan B. F. N.
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Ionic Liquids: “Designer” Solvents for Green Chemistry
Authors: Plechkova Natalia V. , Seddon Kenneth R.
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Dimethyl Carbonate as a Green Reagent
Authors: Tundo Pietro , Selva Maurizio
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Photoinitiated Synthesis: A Useful Perspective in Green Chemistry
Authors: Albini Angelo
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
The Four‐Component Reaction and Other Multicomponent Reactions of the Isocyanides
Authors: Ugi Ivar , Werner Birgit
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Organic Reactions in Superheated Water
Authors: de Carvalho da Silva Fernando
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Quinone Diazides
Authors: Griesbeck A. G. , Zimmermann E.
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Sulfur Analogues of Quinones
Authors: Yoshifuji M. , Kawasaki S.
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Nitrogen‐Containing Hetarene Quinones
Authors: Pindur U. , Lemster T.
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Benzo‐1,2‐quinones
Authors: Nair V. , Radhakrishnan K. V.
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Alkynyl‐, Aryl‐, and Alkenyl‐Substituted Benzo‐1,4‐quinones
Authors: Balci M. , Gultekin M. S. , Celik M.
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Benzo‐1,4‐quinones Substituted by Carbon with Three Bonds to Heteroatoms
Authors: Balci M. , Celik M. , Gultekin M. S.
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Forcing and Controlling Chemical Reactions with Ultrasound
Authors: Cravotto Giancarlo , Cintas Pedro
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Catalytic Enantioselective Construction of Tetrasubstituted Carbons by Self‐Assembled Poly Rare Earth Metal Complexes
Authors: Shibasaki Masakatsu , Kanai Motomu
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
A Synthetic Kiss of Death: Expressed Protein Ligation of a Ubiquitin—Peptide Conjugate
Authors: Hackenberger Christian P. R.
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Calixarene‐Based Oxovanadium Complexes as Molecular Models for Catalytically Active Surface Species and Homogeneous Catalysts
Authors: Limberg Christian
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Chirality Transfer Through Helical Motifs in Coordination Compounds
Authors: He Cheng , Zhao Yonggang , Guo Dong , Lin Zhihua , Duan Chunying
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Heavy Grignard Reagents: Challenges and Possibilities of Aryl Alkaline Earth Metal Compounds
Authors: Westerhausen Matthias , Gaertner Martin , Fischer Reinald , Langer Jens , Yu Lian , Reiher Markus
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Total Synthesis of Merrilactone A: Long‐Range Stereocontrol and Asymmetric Desymmetrization
Authors: Inoue Masayuki , Sato Takaaki , Hirama Masahiro
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Total Synthesis of Brevetoxin B
Authors: Kadota Isao , Takamura Hiroyoshi
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis of (‐)‐Sordarin
Authors: Kitamura Mitsuru , Chiba Shunsuke , Narasaka Koichi
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Total Synthesis of Structurally Unique γ‐Lactam Natural Products
Authors: Takao Ken‐ichi , Aoki Shin‐ya , Tadano Kin‐ichi
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Total Syntheses of FR900482
Authors: Tokuyama Hidetoshi , Suzuki Masashi , Fukuyama Tohru
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Investigation of Prostanoid Synthesis
Authors: Maruyama Toru , Nakai Hisao
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
The First Asymmetric Total Synthesis of Tetrodotoxin, a Puffer Fish Toxin
Authors: Isobe Minoru , Ohyabu Norio , Nishikawa Toshio
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis of Prelaureatin, Laurencin, and the Medium‐Ring Ether Parts of Ciguatoxins
Authors: Fujiwara Kenshu
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Revision of the Stereochemistries of Natural Products Through the Synthetic Study: Synthesis of Fudecalone and Kaitocephalin
Authors: Watanabe Hidenori , Kitahara Takeshi
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Photochemical Synthesis of Oligothiophene Thin Films and Nanopatterns in Condensed Multilayer Films of 2,5‐Diiodothiophene: Effects of Surface Chemistry of Substrates
Authors: Kim Seong H. , Natarajan Sudarshan , Liu Guangming
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthetic Applications of Nitroalkanes Promoted by Solid Catalysis: Recent Results
Authors: Ballini R. , Palmieri A.
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
The Synthesis of Tertiary and Secondary Phosphines and Their Applications in Organic Synthesis
Authors: Honaker Matthew T. , Hovland Jason M. , Salvatore Ralph Nicholas
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Chiral α‐Phosphorylvinyl Sulfoxides
Authors: Mikolajczyk Marian , Midura Wanda H.
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Metal‐Substituted Benzo‐1,4‐quinones
Authors: Vong B. G. , Theodorakis E. A.
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis and Unprecedented Reactivity Characteristics of Unsaturated Bridgehead Sultams
Authors: Paquette Leo A.
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Efficient Two‐Pot Procedure for the Preparation of Anilines from Readily Available Aldehydes
Authors: Lang Stuart
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Inclusion Compounds
Authors: Weber Edwin
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Molecular Recognition
Authors: Weber Edwin
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Chemistry in Low‐Temperature Matrices
Authors: Almond Matthew J. , Goldberg Nicola
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Reactivity of High‐Valent Iron—Oxo Species in Enzymes and Synthetic Reagents: A Tale of Many States
Authors: Shaik Sason , Hirao Hajime , Kumar Devesh
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Role of Proton‐Coupled Electron Transfer in O—O Bond Activation
Authors: Rosenthal Joel , Nocera Daniel G.
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Reactivities of Oxo and Peroxo Intermediates Studied by Hemoprotein Mutants
Authors: Watanabe Yoshihito , Nakajima Hiroshi , Ueno Takafumi
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Heme—Copper/Dioxygen Adduct Formation, Properties, and Reactivity
Authors: Chufan Eduardo E. , Puiu Simona C. , Karlin Kenneth D.
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Structural and Mechanistic Insights into Methane Oxidation by Particulate Methane Monooxygenase
Authors: Balasubramanian Ramakrishnan , Rosenzweig Amy C.
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
O2 and N2O Activation by Bi‐, Tri‐, and Tetranuclear Cu Clusters in Biology
Authors: Solomon Edward I. , Sarangi Ritimukta , Woertink Julia S. , Augustine Anthony J. , Yoon Jungjoo , Ghosh Somdatta
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Monooxygenase Activity of Type 3 Copper Proteins
Authors: Itoh Shinobu , Fukuzumi Shunichi
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Mononuclear Cu—O2 Complexes: Geometries, Spectroscopic Properties, Electronic Structures, and Reactivity
Authors: Cramer Christopher J. , Tolman William B.
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Ligand Effects on Dioxygen Activation by Copper and Nickel Complexes: Reactivity and Intermediates
Authors: Suzuki Masatatsu
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Dioxygen Activation at Monovalent Nickel
Authors: Kieber‐Emmons Matthew T. , Riordan Charles G.
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Corrolazines: New Frontiers in High‐Valent Metalloporphyrinoid Stability and Reactivity
Authors: Goldberg David P.
Published: September 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
An adaptive extension library for improving collective communication operations
Authors: Hartmann O. , Kühnemann M. , Rauber T. , Rünger G.
Published: September 2007

In this paper, we present an adaptive extension library that combines the advantage of using a portable MPI library with the ability to optimize the performance of specific collective communication operations. The extension library is built on top of MPI and can be used with any MPI library. Using the extension library, performance improvements can be achieved by an orthogonal organization of the processors in 2D or 3D meshes and by decomposing the collective communication operations into several consecutive phases of MPI communication. Additional point‐to‐point‐based algorithms are also provided. The extension library works in two steps, an a priori configuration phase detecting possible improvements for implementing collective communication for the MPI library used and an execution phase selecting a better implementation during execution time. This allows an adaptation of the performance of MPI programs to a specific execution platform and communication situation. The experimental evaluation shows that significant performance improvements can be obtained for different MPI libraries by using the library extension for collective MPI communication operations in isolation as well as in the context of application programs. Copyright © 2007 John Wiley & Sons, Ltd.
Design equations for fractional‐order sinusoidal oscillators: Four practical circuit examples
Authors: Radwan A. G. , Soliman A. M. , Elwakil A. S.
Published: September 2007

Four practical sinusoidal oscillators are studied in the general form where fractional‐order energy storage elements are considered. A fractional‐order element is one whose complex impedance is given byZ = a(jω)±α, whereais a constant and α is not necessarily an integer. As a result, these oscillators are described by sets of fractional‐order differential equations. The integer‐order oscillation condition and oscillation frequency formulae are verified as special cases. Numerical and PSpice simulation results are given. Experimental results are also reported for a selected Wien‐bridge oscillator. Copyright © 2007 John Wiley & Sons, Ltd.
Universal resistorless current‐mode filters employing CCCIIs
Authors: Yuce Erkan , Kircay Ali , Tokat Sezai
Published: September 2007

In this paper, four different‐type second‐order current‐mode filters, employing second‐generation current‐controlled conveyors (CCCIIs) and two capacitors, are proposed. The first two of the presented filters can simultaneously realize high‐output impedance low‐pass, band‐pass and high‐pass responses. Also, the two filters can provide notch and all‐pass filter responses with interconnection of the relevant output currents. The first developed one needs no critical active and passive element matching conditions and/or cancellation constraints. The second and third introduced ones employ only grounded capacitors. The fourth proposed filter derived from the third one uses only plus‐type single output CCCIIs (CCCII+s). The fifth filter can be constructed using commercially available active devices such as AD844s along with additional resistors instead of CCCII+s of the fourth proposed filter to perform experimental test easily. All of the proposed filters have low active and passive element sensitivities. Time and frequency domain analyses are performed for the first, second and third realized filters using SPICE simulation program. Also, experimental test is achieved for the fifth filter. In this study, stability problems attributed to non‐ideal gains of the CCCIIs and signal limitations of the first, second and third introduced filters due to restricted power supply voltages are investigated. Copyright © 2007 John Wiley & Sons, Ltd.
CFA‐based grounded‐capacitor operational simulation of ladder filters
Authors: Rathore T. S. , Khot U. P.
Published: September 2007

A systematic method for deriving CFA‐based all‐grounded‐capacitor filters from current modeRLCprototype ladder has been given. It is based on the operational simulation of node voltages and branch currents. It is extended to a voltage‐mode ladder. These filters employ a minimum number of capacitors and minimum total capacitance. In some cases, all the capacitors can be made of equal value. Such filters are suitable for fabrication in integrated circuit technology. Illustrative examples for realizing generic filters are included with their simulation results. Copyright © 2007 John Wiley & Sons, Ltd.
Performance comparison between fixed length switching and variable length switching
Authors: Hu Chengchen , Li Wenjie , Chen Xuefei , Liu Bin
Published: September 2007

Fixed length switching (FLS) and variable length switching (VLS) are two main types of switching architecture in high‐speed input‐queued switches. FLS is based on a cell‐by‐cell scheduling algorithm, while VLS operates on the variable packet granularity. This paper aims to make a comprehensive comparison between these two switching modes to guide the industrial design and academic research. We use stochastic models, Petri net models, analysis and simulations to investigate various performance measures of interest. Average packet latency, bandwidth utilization, segmentation and reassembly overhead, as well as packet loss are the identified key parameters that influence the outcome of the comparison. The results achieved in this paper are twofold. On one hand, it is shown that FLS enables smaller packet loss and lower packet delay in case of a short packet. On the other hand, VLS favors better bandwidth utilization, reduced implementation complexity and lower average packet delay. We recommend VLS in the conclusion since its disadvantages can be compensated by some methods, while the problems in FLS are difficult to be solved. Copyright © 2007 John Wiley & Sons, Ltd.
ß‐cell function and anti‐diabetic pharmacotherapy
Authors: Del Prato Stefano , Bianchi Cristina , Marchetti Piero
Published: September 2007

Type 2 diabetes is a chronic disease characterized by progressive worsening of glycaemic control as indicated by the United Kingdom Prospective Diabetes Study (UKPDS). The progressive nature of the disease is mainly due to continuous loss of β‐cell mass and function. Though much of this loss is due to intrinsic defects of the β‐cell several factors may accelerate such process. These include the metabolic environment where hyperglycaemia and increased circulating free‐fatty acid exert a toxic effect on the β‐cell. Therefore, tight metabolic control may prevent not only the risk of long‐term diabetic complication but also preserve β‐cell function. Several therapeutic agents are currently used for treatment of type 2 diabetic patients. However, their effect on maintenance of β‐cell function has not been yet systematically reviewed. By literature searching we have then analysed in detail the effect of sulfonylureas and non‐sulfonylureic secretagogues, incretin‐mimetics, insulin sensitizers, α‐glucosidase inhibitors, and insulin on β‐cell function. Moreover, promising future approaches aiming at preserving β‐cell function and mass are discussed. Copyright © 2007 John Wiley & Sons, Ltd.
Mixed‐Valence Cobalt(II/III) Carboxylate Clusters: CoII4CoIII2 and CoIICoIII2 Complexes from the Use of 2‐(Hydroxymethyl)pyridine
Authors: Stamatatos Theocharis C. , Boudalis Athanassios K. , Pringouri Konstantina V. , Raptopoulou Catherine P. , Terzis Aris , Wolowska Joanna , McInnes Eric J. L. , Perlepes Spyros P.
Published: September 2007

Aerobic reactions of Co(O2CR)2 with 2‐(hydroxymethyl)pyridine (hmpH), in the presence of ClO4– counterions give the hexanuclear, mixed‐valence clusters [CoII4CoIII2(O2CR)4(hmp)8](ClO4)2 [R = Me (1), Ph (2)] which possess the unprecedented [CoII4CoIII2(μ3‐OR′)4(μ‐OR′)4]6+ [R′ = (2‐pyridyl)CH2‐] core. Replacement of ClO4– by N3– in the reaction mixture that gives 1 leads to the linear complex [CoIII,II,III3(O2CMe)2(N3)2(hmp)4] (3). Q‐band EPR spectra and variable‐temperature magnetic susceptibility studies for 1 and 2 provide strong evidence that the CoII ions are antiferromagnetically coupled.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)
Uniformly Nucleobase‐Functionalized β‐Peptide Helices: Watson–Crick Pairing or Nonspecific Aggregation
Authors: Weiß Angelina , Diederichsen Ulf
Published: September 2007

The organization and architecture of helices is fundamental in folding of protein tertiary structures. Therefore, stable β‐peptide helices are used as models for the selective organization of secondary structures. Nucleobases are already established as recognition elements to organize two β‐peptide helices in antiparallel orientation. The investigation of β‐peptide helices uniformly functionalized with one type of nucleobases provided further insight in the recognition mode and requirements for specific interaction within the linear and very rigid helical backbone topology. Specific helix interaction based on base pair recognition is predominant as soon as Watson–Crick pairing is allowed. If the hydrogen bonding donor/acceptor pattern prohibits the Watson–Crick geometry, a quite stable nonspecific interaction was found based on aromatic interactions or on a nonspecific hydrogen bonding network. The latter aggregation was also confirmed with tyrosine side chains.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)
Preparation of Chiral Homoannularly Bridged N,P‐Ferrocenyl Ligands by Intramolecular Coupling of 1,5‐Dilithioferrocenes and Their Application in Asymmetric Allylic Substitution Reactions
Authors: Fukuzawa Shin‐ichi , Yamamoto Masahisa , Hosaka Mitsuteru , Kikuchi Satoshi
Published: September 2007

Homoannularly bridged ferrocene 6b was prepared by intramolecular coupling of 1,5‐dilithioferrocene 5b mediated by Fe(acac)3. Dilithioferrocene 5b was prepared by lithium–halogen exchange of the corresponding diiodide, which was prepared by 1,5‐dilithiation of the o‐TMS‐blocked ferrocene and followed by trapping with iodine and removal of the TMS group. Alternatively, 5b could be readily prepared by the reaction of o‐bromophenylferrocene 8 with nBuLi (>2 equiv.). The benzene ring of 6b underwent ortho lithiation with tBuLi, and the resulting lithiated species was trapped with Ph2PCl to produce corresponding aminophosphane 7d. Aminophosphane 13, which has the phosphanyl group on the cyclopentadienyl ring, was prepared by intramolecular coupling of 1,5‐dilithiated PhPPFA 11 mediated by Fe(acac)3. New N,P ligands 7d and 13 were used in the palladium‐catalyzed allylic alkylation and amination of 1,3‐diphenyl‐2‐propenyl acetate (14), and ligand 7d was found to give good yields with enantioselectivities as high as 96 % ee. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)
Experimental investigation on a base isolation system incorporating steel–Teflon sliders and pressurized fluid viscous spring dampers
Authors: Sorace Stefano , Terenzi Gloria , Magonette Georges , Molina Francisco J.
Published: September 2007

An experimental investigation on a base isolation system incorporating stainless steel–Teflon bearings as sliders, and pressurized fluid viscous spring dampers, is presented in this paper. In the system examined, dampers are connected to the base floor of an isolated building to provide the desired passive control of response in the superstructure, as well as to guarantee that it re‐centres completely after the termination of a seismic action. Two types of experiments were conducted: sinusoidal and random cyclic tests, and a pseudodynamic test in ‘substructured’ configuration. The cyclic tests were aimed at characterizing what follows: the hysteretic and strain‐rate‐dependent response of the considered highly non‐linear spring dampers; the normal pressure‐ and strain‐rate‐dependent frictional behaviour of steel–Teflon bearings, manufactured in compliance with the latest standards for this class of sliders; and the combined response of their assembly. The pseudodynamic test simulated the installation of the protection system at the base of a 2:3‐scale three‐storey steel frame structure, already tested in unprotected conditions by an earlier experimental campaign. Among other findings, the results of the performed tests, as well as of relevant mechanical interpretation and numerical simulation analyses, confirmed the linear additive combination of the dissipative actions of spring dampers and sliders in this mixed installation, and the high protective performance of the considered base isolation/supplemental damping system in a realistic earthquake simulation. Copyright © 2007 John Wiley & Sons, Ltd.
The impact of depression removal on catchment geomorphology, soil erosion and landscape evolution
Authors: Hancock G. R.
Published: September 2007

The current generation of landscape evolution models use a digital elevation model for landscape representation. These programs also contain a hydrological model that defines overland flow with the drainage network routed to an outlet. One of the issues with landscape evolution modelling is the hydrological correctness of the digital elevation model used for the simulations. Despite the wide use and increased quality of digital elevation models, data pits and depressions in the elevation data are a common feature and their removal will remain a necessary step for many data sets. This study examines whether a digital elevation model can be hydrologically correct (i.e. all depressions removed so that all water can run downslope) before use in a landscape evolution model and what effect depression removal has on long‐term geomorphology and hydrology. The impact on sediment transport rates is also examined. The study was conducted using a field catchment and a proposed landform for a post‐mining landscape. The results show that there is little difference in catchment geomorphology and hydrology for the non‐depression removed and depression removed data sets. The non‐depression removed and depression removed digital elevation models were also evaluated as input to a landscape evolution model for a 50 000 year simulation period. The results show that after 1000 years there is little difference between the data sets, although sediment transport rates did vary considerably early on in the simulation. Copyright © 2007 John Wiley & Sons, Ltd.
Wireless signal‐preamble assisted Mach–Zehnder modulator bias stabilisation in wireless signal transmission over optical fibre
Authors: Chanda Debashis , Sesay Abu
Published: September 2007

Lithium niobate based Mach–Zehnder electro‐optic modulators are increasingly being used in high‐speed digital as well as analog optical links. Depending on the application, digital or analog, the bias point of such a modulator is held constant at a particular point on the sinusoidal electrical to optical power transfer characteristics of the modulator. Bias point drift is one of the major limitations of lithium niobate based Mach–Zehnder electro‐optic modulators. This increases the bit error rate of the system and affects adjacent channel performances. In one of the most popular methods of bias control, a pilot tone is used to track the bias point drift. However, pilot tone based bias tracking reduces overall intermodulation free dynamic range of the link. In this paper we propose a method where Mach–Zehnder modulator bias drift is tracked and maintained at the desired point by tracking the power variation of the preamble of wireless signal data frames. The method has no detrimental effects on system performances as no external signal is exclusively injected into the system for bias tracking purposes. Copyright © 2007 John Wiley & Sons, Ltd.
Vasculogenesis, angiogenesis, and arteriogenesis: Mechanisms of blood vessel formation and remodeling
Authors: Semenza Gregg L.
Published: September 2007

In this review, the concept of oxygen homeostasis will be presented as an organizing principle for discussion of the phylogeny, ontogeny, physiology, and pathology of blood vessel formation and remodeling, with a focus on molecular mechanisms and potential therapeutic applications. J. Cell. Biochem. 102: 840–847, 2007. © 2007 Wiley‐Liss, Inc.
Specific LPA receptor subtype mediation of LPA‐induced hypertrophy of cardiac myocytes and involvement of Akt and NFκB signal pathways
Authors: Chen Jinghai , Chen Yuefeng , Zhu Weiquan , Han Yu , Han Bianmei , Xu Ruixia , Deng Linzi , Cai Yan , Cong Xiangfeng , Yang Yuejing , Hu Shengshou , Chen Xi
Published: September 2007

Lysophosphatidic acid (LPA) is a bioactive phospholipid with diverse functions mediated via G‐protein‐coupled receptors (GPCRs). In view of the elevated levels of LPA in acute myocardial infarction (MI) patients we have conducted studies aimed at identifying specific LPA receptor subtypes and signaling events that may mediate its actions in hypertrophic remodeling. Experiments were carried out in cultured neonatal rat cardiomyocytes (NRCMs) exposed to LPA and in a rat MI model. In NRCMs, LPA‐induced hypertrophic growth was completely abrogated by DGPP, an LPA1/LPA3 antagonist. The LPA3 agonist OMPT, but not the LPA2 agonist dodecylphosphate, promoted hypertrophy as examined by3[H]‐Leucine incorporation, ANF‐luciferase expression and cell area. In in vivo experiments, LPA1, LPA2 and LPA3 mRNA levels as well as LPA1 and LPA3 protein levels increased together with left ventricular remodeling (LVRM) after MI. In addition, LPA stimulated the phosphorylation of Akt and p65 protein and activated NF‐κB‐luciferase expression. Inhibitors of PI3K (wortmannin), mTOR (rapamycin), and NF‐κB (PDTC or SN50) effectively prevented LPA‐induced3[H]‐Leucine incorporation and ANF‐luciferase expression. Furthermore, ERK inhibitors (U0126 and PD98059) suppressed LPA‐stimulated activation of NF‐κB and p65 phosphorylation whereas wortmannin showed no effect on NF‐κB activation. Our findings indicate that LPA3 and/or LPA1 mediate LPA‐induced hypertrophy of NRCMs and that LPA1 and LPA3 may be involved in LVRM of MI rats. Moreover, Akt and NF‐κB signaling pathways independently implicate in LPA‐stimulated myocardial hypertrophic growth. J. Cell. Biochem. 103: 1718–1731, 2008. © 2007 Wiley‐Liss, Inc.