bluuebunny/crossref_metadata_2025 huggingface dataset:
Asymmetric Aldol Reactions Catalyzed by Tryptophan in Water.
Authors: Jiang Zhaoqin , Liang Zhian , Wu Xiaoyu , Lu Yixin
Published: October 2006

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.
High Chelation Control of Three Contiguous Stereogenic Centers in the Reformatsky Reactions of Indium Enolates with α‐Hydroxy Ketones: Unexpected Stereochemistry of Lactone Formation.
Authors: Babu Srinivasarao Arulananda , Yasuda Makoto , Okabe Yuji , Shibata Ikuya , Baba Akio
Published: October 2006

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.
Asymmetric Cobalt‐Catalyzed Diels—Alder Reactions of a Boron‐Functionalized 1,3‐Diene with Alkynes and Allylboration with Aldehydes.
Authors: Hilt Gerhard , Hess Wilfried , Harms Klaus
Published: October 2006

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.
Nickel‐Mediated Cyclization of Enynes under an Atmosphere of Carbon Dioxide.
Authors: Takimoto Masanori , Mizuno Takashi , Mori Miwako , Sato Yoshihiro
Published: October 2006

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 of 1,2,5‐Oxadiazole, Isoxazole, Isothiazole, 1,2,3‐Triazole, and Pyrrole Rings from N‐(5,5‐Dimethyl‐3‐oxocyclohexenyl)‐S,S‐diphenylsulfilimine (III).
Authors: Takahashi Masahiko , Onda Shinji , Matsumoto Nobuaki
Published: October 2006

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.
Highly Efficient Meinwald Rearrangement Reactions of Epoxides Catalyzed by Copper Tetrafluoroborate.
Authors: Robinson Mathew W. C. , Pillinger Kathryn S. , Graham Andrew E.
Published: October 2006

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 Novel Reduction Reaction for the Conversion of Aldehydes, Ketones and Primary, Secondary and Tertiary Alcohols into Their Corresponding Alkanes.
Authors: Nimmagadda Rama D. , McRae Christopher
Published: October 2006

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.
Highly Efficient 1,4‐Additions of Electron‐Deficient Aryl Boronic Acids with a Novel Rhodium(I) Quinonoid Catalyst.
Authors: Trenkle William C. , Barkin Julia L. , Son Seung Uk , Sweigart Dwight A.
Published: October 2006

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.
Fluorous Phase‐Transfer Activation of Catalysts: Application of a New Rate‐Enhancement Strategy to Alkene Metathesis.
Authors: Correa da Costa Rosenildo , Gladysz J. A.
Published: October 2006

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 Mild and Efficient Reaction for Conversion of Carboxylic Acids into Acid Bromides with Ethyl Tribromoacetate/Triphenylphosphine under Acid‐Free Conditions.
Authors: Kang Dong Ho , Joo Tae Young , Lee Eun Hwa , Chaysripongkul Skaydaw , Chavasiri Warinthorn , Jang Doo Ok
Published: October 2006

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 Efficient Method for the Synthesis of Acylals from Aldehydes Using Silica‐Supported Perchloric Acid (HClO4—SiO2).
Authors: Kamble Vinod T. , Jamode Vasant S. , Joshi Neeta S. , Biradar Ankush V. , Deshmukh Rameshchandra Y.
Published: October 2006

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.
Silica Sulfate, an Efficient Catalyst for the Trimethylsilylation of Alcohols.
Authors: Jin Tong‐Shou , Tian Ruo‐Fei , Liu Li‐Bin , Zhao Ying , Li Tong‐Shuang
Published: October 2006

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.
Deacetylation of Thioacetate Using Acetyl Chloride in Methanol.
Authors: Tewari Neera , Nizar Hashim , Mane Avinash , George Vinod , Prasad Mohan
Published: October 2006

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.
Acetic Acid‐Assisted Copper Methanesulfonate Catalyst for Chemoselective Conversion of Aldehydes to Acylals.
Authors: Wang Min , Gong Hong , Jiang Heng , Wang Zhichang
Published: October 2006

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.
Toward a Protecting‐Group‐Free Halogen—Metal Exchange Reaction: Practical, Chemoselective Metalation of Functionalized Aromatic Halides Using Dianion‐Type Zincate, tBu4ZnLi2.
Authors: Uchiyama Masanobu , Furuyama Taniyuki , Kobayashi Minoru , Matsumoto Yotaro , Tanaka Kentaro
Published: October 2006

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.
Directing Effects of Tethered Alkenes in Nickel‐Catalyzed Coupling Reactions of 1,6‐Enynes and Aldehydes.
Authors: Moslin Ryan M. , Miller Karen M. , Jamison Timothy F.
Published: October 2006

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.
Cyclic Vinylogous Triflate Hemiacetals as New Surrogates for Alkynyl Aldehydes.
Authors: Kamijo Shin , Dudley Gregory B.
Published: October 2006

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.
Highly Selective Catalytic Cross‐Aldol Reactions of Chloral with Aliphatic Aldehydes.
Authors: Zhang Fanglin , Su Ning , Gong Yuefa
Published: October 2006

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 Metal‐Free Hydrogenation of the Carbon—Carbon Double Bond in Azulenoid Enones by Use of Cycloheptatriene and Protic Acid.
Authors: Kimura Takatomo , Takahashi Tohru , Nishiura Mitsuko , Yamamura Kimiaki
Published: October 2006

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.
Lactonization of Epoxyendic Anhydride in Reactions with Amines.
Authors: Kas'yan L. I. , Krishchik O. V. , Tarabara I. N. , Kas'yan A. O. , Pal'chikov V. A.
Published: October 2006

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.
Carbonyl Propargylation and Allenylation with 2‐Propynyl Mesylates, Tin(IV) Iodide, and Tetrabutylammonium Iodide Controlled by Either a Steric Effect or Coordination Effect.
Authors: Masuyama Yoshiro , Yamazuki Ryouichi , Ohtsuka Masaru , Kurusu Yasuhiko
Published: October 2006

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.
One‐Step Synthesis of Aromatic Terminal Alkynes from Their Corresponding Ketones under Microwave Irradiation.
Authors: Ghaffarzadeh Mohammad , Bolourtchian Mohammad , Fard Zohreh Hassanzadeh , Halvagar Mohammad Reza , Mohsenzadeh Farshid
Published: October 2006

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.
Grindstone Chemistry: (Diacetoxyiodo)benzene‐Mediated Oxidative Nuclear Halogenation of Arenes Using NaCl, NaBr or I2.
Authors: Karade N. N. , Tiwari G. B. , Huple D. B. , Siddiqui T. A. J.
Published: October 2006

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 New 1,4‐Amino Alcohol and Its Use as Catalyst in the Enantioselective Addition of Organozinc to Aldehydes.
Authors: Scarpi Dina , Lo Galbo Fabrizio , Guarna Antonio
Published: October 2006

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 Hydrogenation of Aromatic Ketones Catalyzed by Ru Complexes of Goodwin—Lions‐Type sp2N/sp3N Hybrid Ligands R‐BINAN‐R′‐Py.
Authors: Huang Hanmin , Okuno Tomoko , Tsuda Kazuomi , Yoshimura Masahiro , Kitamura Masato
Published: October 2006

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.
Applications of Asymmetric Hydrosilylations Mediated by Catalytic (DTBM‐SEGPHOS)CuH.
Authors: Lipshutz Bruce H. , Lower Asher , Kucejko Robert J. , Noson Kevin
Published: October 2006

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 Dialkylzinc Addition to Aldehydes Catalyzed by Chiral Zn(II)‐BINOLates Bearing Phosphonates and Phosphoramides in the 3,3′‐Positions.
Authors: Hatano Manabu , Miyamoto Takashi , Ishihara Kazuaki
Published: October 2006

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 Functionalized Acetophenone.
Authors: Sun Li , Pei Wen , Shen Chen
Published: October 2006

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 Mild and Convenient Synthesis of N‐Carbobenzyloxy Ketimines
Authors: Matsuo Jun‐ichi , Tanaki Yumi , Kido Aimi , Ishibashi Hiroyuki
Published: October 2006

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.
Highly anti‐Selective Catalytic Aldol Reactions of Amides with Aldehydes.
Authors: Saito Susumu , Kobayashi Shu
Published: October 2006

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.
Three‐Component Mannich‐Type Reaction Catalyzed by Iodine.
Authors: Kataki Dolly , Phukan Prodeep
Published: October 2006

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.
CuI/L‐Proline Potassium Salt Catalyzed Synthesis of Vinyl Sulfones via Coupling Reaction of Vinyl Bromides with Sulfinic Acid Salts in Ionic Liquid.
Authors: Bao Weiliang , Wang Congna
Published: October 2006

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 Efficient Negishi Cross‐Coupling Reaction Catalyzed by Nickel(II) and Diethyl Phosphite.
Authors: Gavryushin Andrei , Kofink Christiane , Manolikakes Georg , Knochel Paul
Published: October 2006

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 Liquid—Crystalline Properties of Bromoalkyloxy‐Substituted Terphenylenes.
Authors: Larios‐Lopez Leticia , Navarro‐Rodriguez Damaso , Donnio Bertrand , Guillon Daniel
Published: October 2006

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.
Oxidation of α‐Hydroxy Ketones to Diketones by Iodic Acid Supported on Alumina.
Authors: Hashemi Mohammed M. , Naeimi Hossein , Shirazizadeh Farveh , Karimi‐Jaberi Zahed
Published: October 2006

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.
Medium‐Size Cyclophanes. Part 69. Synthesis and ipso‐Nitration of Di‐tert‐butyl‐1,2‐dimethyl[2.10]metacyclophan‐1‐enes.
Authors: Yamato Takehiko , Hironaka Tohru , Miyamoto Shinpei
Published: October 2006

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.
Domino Metal‐Free Allene‐β‐lactam‐Based Access to Functionalized Pyrroles.
Authors: Alcaide Benito , Almendros Pedro , Redondo Maria C.
Published: October 2006

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 and Practical Synthesis of Mannich Bases Related to Gramine Mediated by Zinc Chloride.
Authors: Dai Hong‐Guang , Li Ji‐Tai , Li Tong‐Shuang
Published: October 2006

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.
Preparation of 7‐Halo‐indoles by Thallation of N‐Formylindoline and Their Attempted Use for Synthesis of the Right‐Hand Segment of Chloropeptin.
Authors: Yamada Yaeko , Arima Shiho , Okada Chiharu , Akiba Ai , Kai Toshitsugu , Harigaya Yoshihiro
Published: October 2006

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 General Method for the Preparation of 3‐Acyl‐4‐cyano‐5‐amino‐pyrazoles.
Authors: Ge Min , Cline Eric , Yang Lihu
Published: October 2006

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 1,5‐Disubstituted 4‐Haloimidazoles from α‐Aminonitriles.
Authors: Pawar Vijaykumar G. , De Borggraeve Wim M. , Robeyns Koen , Van Meervelt Luc , Compernolle Frans , Hoornaert Georges
Published: October 2006

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 Nitrone Cycloadditions of α,β‐Unsaturated 2‐Acyl Imidazoles Catalyzed by Bis(oxazolinyl)pyridine—Cerium(IV) Triflate Complexes.
Authors: Evans David A. , Song Hyun‐Ji , Fandrick Keith R.
Published: October 2006

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.
Organocatalysis “on Water”. Regioselective [3 + 2]‐Cycloaddition of Nitrones and Allenolates.
Authors: Gonzalez‐Cruz David , Tejedor David , de Armas Pedro , Morales Ezequiel Q. , Garcia‐Tellado Fernando
Published: October 2006

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.
Asymmetric 1,3‐Dipolar Cycloaddition of Nitrones with an Electron‐Withdrawing Group to Allylic Alcohols Utilizing Diisopropyl Tartrate as a Chiral Auxiliary.
Authors: Ding Xia , Taniguchi Katsumi , Hamamoto Yoshihara , Sada Kazunori , Fujinami Shuhei , Ukaji Yutaka , Inomata Katsuhiko
Published: October 2006

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.
New Isothiazole Derivatives: Synthesis, Reactivity, Physiochemical Properties and Pharmacological Activity.
Authors: Regiec Andrzej , Machon Zdzislaw , Miedzybrodzki Ryszard , Szymaniec Stanislaw
Published: October 2006

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 with Heteroaromatic Amines. A New Route to 2‐Azolylamino‐2‐thiazolin‐4‐ones.
Authors: Al‐Zaydi Khadijah M. , Al‐Shamary Asma , Elnagdi Mohamed H.
Published: October 2006

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 Rapid and Efficient Synthesis of Nitrogen and Sulfur Containing Heterocyclic Compounds and Their Pharmacological Evaluation.
Authors: Mistry Ketan , Desai K. R.
Published: October 2006

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.
Regio‐ and Stereoselective Synthesis of Methyl 5‐Methylenetetrahydropyran‐3‐carboxylates from Baylis—Hillman Adducts via Allyltributylstannane‐Mediated Radical Cyclization.
Authors: Gowrisankar Saravanan , Lee Ka Young , Kim Taek Hyeon , Kim Jae Nyoung
Published: October 2006

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.
Clean, One‐Pot Synthesis of Naphthopyran Derivatives in Aqueous Media.
Authors: Jin Tong‐Shou , Zhang Jian‐She , Liu Li‐Bin , Wang Ai‐Qing , Li Tong‐Shuang
Published: October 2006

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.
First C‐3 Lithiation of DMAP: A New Entry into Chemical Tuning of Acylation Catalysts.
Authors: Gros Philippe C. , Doudouh Abdelatif , Woltermann Christopher
Published: October 2006

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.
Highly Enantioselective Azadiene Diels—Alder Reactions Catalyzed by Chiral N‐Heterocyclic Carbenes.
Authors: He Ming , Struble Justin R. , Bode Jeffrey W.
Published: October 2006

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 [3 + 3] Annelation Approach to Tetrahydropyridines.
Authors: Pattenden Lisa C. , Wybrow Robert A. J. , Smith Stephen A. , Harrity Joseph P. A.
Published: October 2006

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, Stereochemistry, and Antimicrobial Activity of 2,6‐Diaryl‐3‐(arylthio)piperidin‐4‐ones.
Authors: Srinivasan Murugesan , Perumal Subbu , Selvaraj Sangavanaicker
Published: October 2006

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.
Carbon—Carbon Bond Formation by Radical Cyclization: Regioselective Synthesis of spiro Heterocyclic Compounds by nBu3SnH‐Mediated Reaction.
Authors: Majumdar K. C. , Kundu N.
Published: October 2006

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.
New Synthesis of Isoquinoline and 3,4‐Dihydroisoquinoline Derivatives.
Authors: Kobayashi Kazuhiro , Shiokawa Taiyo , Omote Hiroki , Hashimoto Kenichi , Morikawa Osamu , Konishi Hisatoshi
Published: October 2006

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.
Amino Acid Derived Enaminones: A Study in Ring Formation Providing Valuable Asymmetric Synthons.
Authors: Turunen Brandon J. , Georg Gunda I.
Published: October 2006

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 Synthesis of Fused Bicyclic Glutarimides. Its Application to (.+‐.)‐Alloyohimbane and Louisianin D.
Authors: Chen Hung‐Wei , Hsu Ru‐Ting , Chang Meng‐Yang , Chang Nein‐Chen
Published: October 2006

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 New Synthetic Route to Polyalkoxypyrimidines Based on the Reaction of Esters and Methyl Thiocyanate.
Authors: Herrera Antonio , Martinez‐Alvarez Roberto , Ramiro Pedro , Almy John , Molero Dolores , Sanchez Angel
Published: October 2006

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 Facile Synthesis of New Tetrahydropyrido[4,3‐d]pyrimidine Derivatives.
Authors: Herrera Antonio , Martinez‐Alvarez Roberto , Chioua Rachid , Almy John
Published: October 2006

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.
Convergent One‐Pot Synthesis of 3‐Substituted Quinazolin‐4(3H)‐ones under Solvent‐Free Conditions.
Authors: Rad‐Moghadam Kurosh , Mamghani Manoochehr , Samavi Laleh
Published: October 2006

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.
Regioselective Synthesis of Novel 4‐Aryl‐2‐ethylthio‐7‐methyl Pyrazolo[1,5‐a]‐[1,3,5]‐triazines.
Authors: Insuasty Henry , Estrada Martin , Cortes Edward , Quiroga Jairo , Insuasty Braulio , Abonia Rodrigo , Nogueras Manuel , Cobo Justo
Published: October 2006

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.
Alkyne Hydrosilylation Catalyzed by Nickel Complexes of N‐Heterocyclic Carbenes.
Authors: Chaulagain Mani Raj , Mahandru Gireesh M. , Montgomery John
Published: October 2006

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.
Cobalt‐Mediated Cross‐Coupling Reactions of Primary and Secondary Alkyl Halides with 1‐(Trimethylsilyl)ethenyl‐ and 2‐Trimethylsilylethynylmagnesium Reagents.
Authors: Ohmiya Hirohisa , Yorimitsu Hideki , Oshima Koichiro
Published: October 2006

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 1,3‐Selenazines and 1,3‐Selenazolidines via Intramolecular Addition of N‐Allylselenoureas.
Authors: Koketsu Mamoru , Kiyokuni Takashi , Sakai Tsutomu , Ando Hiromune , Ishihara Hideharu
Published: October 2006

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.
Highly Stereoselective Allylic Alkylations of Peptides.
Authors: Kazmaier Uli , Deska Jan , Watzke Anja
Published: October 2006

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 Synthesis of a Phenylalanine Library Containing Alkyl Groups on the Aromatic Moiety: Confirmation of Stereostructure by X‐Ray Analysis.
Authors: Li Tingyou , Tsuda Yuko , Minoura Katsuhiko , In Yasuko , Ishida Toshimasa , Lazarus Lawrence H. , Okada Yoshio
Published: October 2006

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 (.+‐.)‐Symbioimine (I).
Authors: Varseev Georgy N. , Maier Martin E.
Published: October 2006

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 (S)‐(‐)‐Cyclooroidin.
Authors: Patel Jignesh , Pelloux‐Leon Nadia , Minassian Frederic , Vallee Yannick
Published: October 2006

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.
CVD Deposition of Binary AlSb and GaSb Material Films — A Single‐Source Approach
Authors: Schulz Stephan
Published: October 2006

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.
Stable Derivatives of New Isomeric Forms of Heavier Group 14 Element Alkene Analogues
Authors: Power Philip P.
Published: October 2006

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.
Palladium‐Catalyzed Cross‐Coupling and Related Reactions Involving Pyrroles
Authors: Banwell Martin G. , Goodwin Thomas E. , Ng Sarah , Smith Jason A. , Wong David J.
Published: October 2006

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.
Cationic Rare Earth Metal Alkyls as Novel Catalysts for Olefin Polymerization and Copolymerization
Authors: Hou Zhaomin , Luo Yunjie , Li Xiaofang
Published: October 2006

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.
Recent Advances in the Synthetic Applications of the Oxazaborolidine‐Mediated Asymmetric Reduction
Authors: Cho Byung Tae
Published: October 2006

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.
Heterocyclic Nucleosides: Chemical Synthesis and Biological Properties
Authors: Merino Pedro
Published: October 2006

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.
Macrocyclic Systems with Photoswitchable Functions
Authors: Fedorova O. A. , Ushakov E. N. , Fedorov Y. V. , Strokach Y. P. , Gromov S. P.
Published: October 2006

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.
Azamacrocyclic Systems with Different Supramolecular Functions
Authors: Koenig Burkhard , Svoboda Jiri
Published: October 2006

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.
Towards Functional Macrocycles: Self‐Assembly and Template Strategies
Authors: Schalley C. A. , Baytekin H. T. , Baytekin B.
Published: October 2006

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.
From Functionalized Catenanes, Rotaxanes and Knots to Higher Intertwined Assemblies
Authors: Lukin Oleg , Voegtle Fritz
Published: October 2006

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 Photochromic Properties of Naphthopyrans
Authors: Hepworth John D. , Heron B. Mark
Published: October 2006

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.
Photonucleophilic Substitution Reactions
Authors: Fagnoni Maurizio , Albini Angelo
Published: October 2006

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.
Asymmetric Dihydroxylation of Alkenes
Authors: Noe Mark C. , Letavic Michael A. , Snow Sheri L.
Published: October 2006

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.
Medicinal Chemistry of hERG Optimizations: Highlights and Hang‐Ups
Authors: Jamieson Craig , Moir Elizabeth M. , Rankovic Zoran , Wishart Grant
Published: October 2006

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.
Targeting EGFR and HER‐2 Receptor Tyrosine Kinases for Cancer Drug Discovery and Development
Authors: Kamath Shantaram , Buolamwini John K.
Published: October 2006

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.
Energy, Charge, and Spin Transport in Molecules and Self‐Assembled Nanostructures Inspired by Photosynthesis
Authors: Wasielewski Michael R.
Published: October 2006

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.
Vladimir Prelog
Authors: Arigoni Duilio , Dunitz Jack D. , Eschenmoser Albert
Published: October 2006

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.
Magnetic X‐Ray Microdiffraction
Authors: Evans Paul G. , Isaacs Eric D.
Published: October 2006

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.
Single‐Scan Multidimensional NMR
Authors: Frydman Lucio
Published: October 2006

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.
Incremental call‐path profiling
Authors: Bernat Andrew R. , Miller Barton P.
Published: October 2006

Profiling is a key technique for achieving high performance. Call‐path profiling is a refinement of this technique that classifies a function's behavior based on the path taken to reach the function. This information is particularly useful when optimizing programs that use libraries, such as those for communication (MPI or PVM), linear algebra (ScaLAPACK), or threading. We present a new method for call‐path profiling called incremental call‐path profiling. We profile only a subset of the functions in the program, allowing the use of more complex metrics while lowering the overhead. This combination of call‐path information and complex metrics is particularly useful for localizing bottlenecks in frequently called functions. We also describe the implementation and application of iPath, an incremental call‐path profiler. iPath was used to profile two real‐world applications: the MILC su3_rmd QCD distributed simulation and the Paradyn instrumentation daemon. In both applications we found and removed call‐path‐specific bottlenecks. Our modifications to su3_rmd reduced the running time of the program from 3001 to 1652 s, a 45% decrease. Our modifications to the Paradyn instrumentation daemon greatly increased its efficiency. The time required to instrument our benchmark program was reduced from 296 to 6.4 s, a 98% decrease. Copyright © 2006 John Wiley & Sons, Ltd.
Knowledge engineering for automatic parallel performance diagnosis
Authors: Li L. , Malony A. D.
Published: October 2006

Scientific parallel programs often undergo significant performance tuning before meeting their performance expectation. Performance tuning naturally involves a diagnostic process—locating performance bugs that make a program inefficient and explaining them in terms of high‐level program design. We present a systematic approach to generating performance knowledge for automatically diagnosing parallel programs. Our approach exploits program semantics and parallelism found in parallel programming patterns to search for and define bugs. The approach addresses how to extract the expert knowledge required for performance diagnosis from parallel patterns and represents this knowledge in a manner such that the diagnostic process can be automated. We demonstrate the effectiveness of our knowledge‐engineering approach through a case study. Our experience diagnosing divide‐and‐conquer programs shows that pattern‐based performance knowledge can provide effective guidance for locating and defining performance bugs at a high level of program abstraction. Copyright © 2006 John Wiley & Sons, Ltd.
Automatic analysis of inefficiency patterns in parallel applications
Authors: Wolf Felix , Mohr Bernd , Dongarra Jack , Moore Shirley
Published: October 2006

Event tracing is a powerful method for analyzing the performance behavior of parallel applications. Because event traces record the temporal and spatial relationships between individual runtime events, they allow application developers to analyze dependences of performance phenomena across concurrent control flows. However, in view of the large amounts of data generated on contemporary parallel machines, the depth and coverage of a purely manual analysis is often limited. Our approach automatically searches event traces for patterns of inefficient behavior, classifies detected instances by category, and quantifies the associated performance penalty. This enables developers to study the performance of their applications at a high level of abstraction, while requiring significantly less time and expertise than a manual analysis. Copyright © 2006 John Wiley & Sons, Ltd.
A distributed adaptive guard channel reservation scheme for cellular networks
Authors: Pati H.K.
Published: October 2006

In this paper, adistributed adaptive guard channel reservation(DAGCR) scheme is proposed to give priority to handoff calls. This scheme is built upon the concept of guard channels and it uses an adaptive algorithm to search automatically the optimal number of guard channels to be reserved at each base station. Thequality‐of‐service(QoS) parameters used are the new and handoff call blockings. Simulation studies are performed to compare the present algorithm with the static guard channel policy. Simulation results show that this proposed algorithm guarantees the handoff call blocking probability to remain below the targeted threshold up to a substantially high offered load with a minimal blocking to new calls up to a moderate offered load and also shows significantly high channel utilization in all offered load conditions. This scheme is examined over a wide range of offered load. Thus, it seems the proposed scheme is very useful in controlling the blocking performances in wireless cellular networks. Copyright © 2006 John Wiley & Sons, Ltd.
Dimerization of Diruthenium Coordination Compounds via Olefin Metathesis
Authors: Chen Wei‐Zhong , Protasiewicz John D. , Shirar Amanda J. , Ren Tong
Published: October 2006

Diruthenium compounds containing an ω‐alkene‐α‐carboxylate ligand, Ru2Cl[D(3,5‐Cl2Ph) F]3[O2C(CH2)nCH=CH2] [n = 1 (1a) and 2 (1b)], were prepared from the reactions between Ru2Cl[D(3,5‐Cl2Ph)F]3(O2CCH3) [D(3,5‐Cl2Ph)F = N,N′‐bis(3,5‐dicholorophenyl)formamidinate] and ω‐alkene‐α‐carboxylic acids. Both compounds 1a and 1b undergo olefin cross‐metathesis reactions catalyzed by (Cy3P)2Cl2Ru(=CHPh) to afford the dimerized compounds [Ru2Cl{D(3,5‐Cl2Ph)F}3]2[μ‐O2C(CH2)nCH=CH(CH2)nCO2] [n = 1 (2a) and 2 (2b)]. Molecular structures of compounds 1a/1b and 2a/2b were established by X‐ray diffraction studies, which revealed the formation of trans product only in the case of shorter tether (2a) and a mixture of cis‐/trans isomers in the case of longer tether (2b). (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)
Uncommon 5‐Methoxyisoflavans from Desmodium canum
Authors: de Andrade Lima Cláudia Sampaio , Zappia Giovanni , Delle Monache Giuliano , Botta Bruno
Published: October 2006

Bioactive minor components of the hexane extract of Desmodium canum root have been assigned the new structures 2–7 of complex isoflavans. Four of them contain the 6‐methyl group typical of the major isoflavanone plant constituents and were named desmodians A–C and 3′‐hydroxydesmodian C, the others being 6‐desmethyldesmodians A and B. All of the isoflavans except 6 (with a 5‐OH group) carry a quite rare 5‐OMe substituent. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)
Model‐Aided Testing of a PEMFC CHP System
Authors: König P. , Weber A. , Lewald N. , Aicher T. , Jörissen L. , Ivers‐Tiffée E.
Published: October 2006

Based on system tests, a model‐aided system analysis tool is developed to model different types of fuel cell systems. In the experimental modeling approach, a model system which is general and flexible is parameterized on the basis of data measured from a system. The aim of this model is to obtain information concerning the efficiency of the system and its individual system components, to reveal problems during operation and to analyze the potential for optimization. A first evaluation of the procedure is performed on a 2 kWeland 4 kWthermalPolymer Electrolyte Membrane fuel cell (PEMFC) Combined Heat and Power (CHP) prototype system, installed at the Institut für Werkstoffe der Elektrotechnik (IWE), Universität Karlsruhe (TH). The system, which was developed at the Zentrum für Sonnenenergie‐ und Wasserstoff‐Forschung ZSW, Ulm (FC stack) and the Fraunhofer‐Institut für Solare Energiesysteme ISE, Freiburg (natural gas reformer) is operated and tested in close cooperation with the Stadtwerke Karlsruhe. The CHP system including the measurement equipment, as well as the modeling and simulation approach based on system tests are presented.
On the Efficiency of an Advanced Automotive Fuel Cell System
Authors: Büchi F. N. , Freunberger S. A. , Reum M. , Paganelli G. , Tsukada A. , Dietrich P. , Delfino A.
Published: October 2006

Efficiency is the key parameter for the application of fuel cells in automotive applications. The efficiency of a hydrogen/oxygen polymer electrolyte fuel cell system is analyzed and compared to hydrogen/air systems. The analysis is performed for the tank to electric power chain. Furthermore, the additional energy required for using pure oxygen as a second fuel is analyzed and included in the calculation. The results show that if hydrogen is produced from primary fossil energy carriers, such as natural gas and pure oxygen needs to be obtained by a conventional process; the fuel to electric current efficiency is comparable for hydrogen/oxygen and hydrogen/air systems. However, if hydrogen and oxygen are produced by the splitting of water, i.e., by electrolysis or by a thermochemical process, the fuel to electric current efficiency for the hydrogen/oxygen system is clearly superior.
Super‐simple resolvable balanced incomplete block designs with block size 4 and index 2
Authors: Zhang Xiande , Ge Gennian
Published: October 2006

The necessary conditions for the existence of a super‐simple resolvable balanced incomplete block design on v points with block size k = 4 and index λ = 2, are that v ≥ 16 and $v \equiv 4\; (\bmod\; {12})$. These conditions are shown to be sufficient. © 2006 Wiley Periodicals, Inc. J Combin Designs 15: 341–356, 2007
A Class of 2‐(3n7, 3n−17, (3n−17−1)/2) Designs
Authors: Tonchev Vladimir D.
Published: October 2006

Generalized Hadamard matrices are used for the construction of a class of quasi‐residual nonresolvable BIBD's with parameters $2\hbox{-}(3^{n}7, 3^{n-1}7, (3^{n-1}7-1)/2), n\ge 2$. The designs are not embeddable as residual designs into symmetric designs if n is even. The construction yields many nonisomorphic designs for every given n ≥ 2, including more than 1017 nonisomorphic 2‐(63,21,10) designs. © 2006 Wiley Periodicals, Inc. J Combin Designs 15: 460–464, 2007
Low doses of ethanol and hypoxia administered together act synergistically to promote the death of cortical neurons
Authors: Genetta Thomas , Lee Ben H. , Sola Augusto
Published: October 2006

The majority of clinically relevant injuries to the developing brain are increasingly being recognized as the result of a combination of least two insults. Evidence from epidemiologic and clinical studies suggests that many of these insults do not cause injury in and of themselves. Rather, they act as predisposing factors (pre‐conditioning cytotoxic factors, such as chronic ethanol consumption), increasing the susceptibility to a second, injury‐producing (precipitating), unfavorable event (such as hypoxia‐ischemia). In this study we make use of primary neuronal cultures to test, in a reproducible system, this two‐hit hypothesis. We show that, when administered in combination, low levels of two clinically important environmental insults, hypoxia and ethanol, despite having minimal effects on their own, can act synergistically produce a significant degree of neuronal injury. We further show that one indicator of apoptotic cell death, activated caspase 3, undetectable in neurons subjected to low levels of either insult alone, is detectable when they are administered together. © 2006 Wiley‐Liss, Inc.
Modeling the neurovascular niche: VEGF‐ and BDNF‐mediated cross‐talk between neural stem cells and endothelial cells: An in vitro study
Authors: Li Qi , Ford Millicent C. , Lavik Erin B. , Madri Joseph A.
Published: October 2006

Neural stem cells (NSCs) exist in vascularized niches. Although there has been ample evidence supporting a role for endothelial cell‐derived soluble factors as modulators of neural stem cell self‐renewal and neuronal differentiation there is a paucity of data reported on neural stem cell modulation of endothelial cell behavior. We show that co‐culture of NSCs with brain‐derived endothelial cells (BECs) either in direct contact or separated by a porous membrane elicited robust vascular tube formation and maintenance, mediated by induction of vascular vascular endothelial growth factor (VEGF) and brain‐derived neurotrophic factor (BDNF) and activation of vascular VEGFR2 and TrkB by NSC NO. Nitric oxide (NO) scavengers and sequestration of VEGF and BDNF blunted this induction of tube formation, whereas addition of exogenous NO donor, rBDNF and rVEGF rescued the induction of tube formation. Further, rBDNF enhanced NSC eNOS activation and NO generation, suggesting an inducible positive feed‐back signaling loop between NSCs and BECs, providing for homeostasis and responsiveness of the resident NSCs and BECs comprising the neurovascular niche. These findings show the importance of reciprocal modulation of NSCs and BECs in induction and maintenance of the neurovascular niche and underscores their dynamic interactions. © 2006 Wiley‐Liss, Inc.