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文章名     作者     期刊名     摘要     卷     期         如果没有找到您所需要的文献，请点击 ——此处申请     共72条记录   Metalated Aziridines for Cross-Coupling with Aryl and Alkenyl Halides via Palladium Catalysis [作者：NELSON JOHN M; VEDEJS EDWIN,期刊：Organic Letters, 页码：5085-5087 , 文章类型： Article，,卷期：2010年12-22] The palladium-catalyzed coupling of an aziridinylzinc chloride intermediate with alkenyl and aryl halides has been demonstrated. The method provides products with retention of aziridine stereochemistry. The utility of th... Highly Enantioselective Mukaiyama Aldol Reactions Catalyzed by a Chiral Oxazaborolidinium Ion: Total Synthesis of (-)-Inthomycin C [作者：SENAPATI BIDYUT KUMAR; GAO LIZHU; LEE SUNG IL; HWANG GEUMSOOK; RYU DO HYUN,期刊：Organic Letters, 页码：5088-5091 , 文章类型： Article，,卷期：2010年12-22] A cationic oxazaborolidinium-catalyzed asymmetric Mukaiyama aldol reaction of (1-methoxy-2-methyl-propenyloxy)-trimethylsilane with various aldehydes including alpha,beta-disubstituted acroleins has been developed in hig... C-H Bond Functionalization in the Synthesis of Fused 1,2,3-Triazoles [作者：PANTELEEV JANE; GEYER KAROLIN; AGUILARAGUILAR ANGELICA; WANG LETIAN; LAUTENS MARK,期刊：Organic Letters, 页码：5092-5095 , 文章类型： Article，,卷期：2010年12-22] A highly modular approach to fused 1,2,3-triazoles has been developed featuring a one-pot procedure combining copper(I) catalyzed azide-alkyne cycloaddition and palladium-catalyzed C-H bond functionalization. A class of ... Catalytic Acylation of Amines with Aldehydes or Aldoximes [作者：ALLEN C LIANA; DAVULCU SIMGE; WILLIAMS JONATHAN M J,期刊：Organic Letters, 页码：5096-5099 , 文章类型： Article，,卷期：2010年12-22] The simple nickel salt NiCl2 center dot 6H(2)O catalyzes the coupling of aldoximes with amines to give secondary or tertiary amide products. The aldoxime can be prepared in situ from the corresponding aldehyde. The use o... Tandem Pd-Catalyzed Carbonylation and Intramolecular Vinyl Allene Diels-Alder Reaction toward Galiellalactone Analogues [作者：GIDLOF RITHA; JOHANSSON MARTIN; STERNER OLOV,期刊：Organic Letters, 页码：5100-5103 , 文章类型： Article，,卷期：2010年12-22] A novel route toward new galiellalactone analogues via a tandem palladium-catalyzed carbonylation and intramolecular Diels-Alder reaction of a dienyne carbonate is presented. Cinchona Alkaloid-Catalyzed Asymmetric Trifluoromethylation of Alkynyl Ketones with Trimethylsilyl Trifluoromethane [作者：KAWAI HIROYUKI; TACHI KENTARO; TOKUNAGA ETSUKO; SHIRO MOTOO; SHIBATA NORIO,期刊：Organic Letters, 页码：5104-5107 , 文章类型： Article，,卷期：2010年12-22] The first catalytic enantioselective trifluoromethylation of alkynyl ketones 1 with (trifluoromethyl)trimethylsilane is disclosed by an operationally simple procedure, based on the combination of ammonium bromide of bis-... A Case of Fast Photocyclization: The Model of a Downhill Ladder Reaction Pathway for the Bichromophoric Phototrigger 3 ',5 '-Dimethoxybenzoin Acetate [作者：CHEN XUEBO; MA CHENSHENG; PHILLIPS DAVID LEE; FANG WEIHAI,期刊：Organic Letters, 页码：5108-5111 , 文章类型： Article，,卷期：2010年12-22] A downhill ladder reaction pathway for the bichromophoric phototrigger 3',5'-dimethoxybenzoin acetate was mapped using ab initio multiconfigurational methods. These computational results explicitly describe a case of fas... Stereoselective Synthesis of Spirooxindole Amides through Nitrile Hydrozirconation [作者：LU CHUNLIANG; XIAO QING; FLOREANCIG PAUL E,期刊：Organic Letters, 页码：5112-5115 , 文章类型： Article，,卷期：2010年12-22] Spirooxindole amides can be prepared by the intramolecular addition of functionalized indoles into acylimines that are accessed from nitriles by hydrozirconation and acylation. The stereochemical outcome at the quaternar... Reaction of Singlet Oxygen with Thioanisole in Ionic Liquid-Acetonitrile Binary Mixtures [作者：BACIOCCHI ENRICO; CHIAPPE CINZIA; FASCIANI CHIARA; LANZALUNGA OSVALDO; LAPI ANDREA,期刊：Organic Letters, 页码：5116-5119 , 文章类型： Article，,卷期：2010年12-22] A study of the reaction of thioanisole with singlet oxygen in different ionic liquid acetonitrile binary mixtures has shown that ILs are able to accelerate the thioanisole sulfoxidation when used as additives. With imida... Thermally Induced Electrocyclic Reaction of Methylenecyclopropane Methylene Diketone Derivatives: A Facile Method for the Synthesis of Spiro[2.5]octa-3,5-dienes [作者：TANG XIANGYING; WEI YIN; SHI MIN,期刊：Organic Letters, 页码：5120-5123 , 文章类型： Article，,卷期：2010年12-22] Thermally induced electrocyclic reactions of methylenecyclopropane (MCP) methylene diketone derivatives afford a novel method for the synthesis of spiro[2.5]octa-3,5-dienes in moderate to good yields. Applying this metho... Intermolecular Michael Reactions: A Computational Investigation [作者：KWAN EUGENE E; EVANS DAVID A,期刊：Organic Letters, 页码：5124-5127 , 文章类型： Article，,卷期：2010年12-22] Computational studies have suggested that eta(3)-lithium enolates in which the cation is partially bound to both carbon and oxygen may be important reactive intermediates. DFT calculations are used to demonstrate that ex... Diastereoselective Access to trans-2-Substituted Cyclopentylamines [作者：JOOSTEN ANTOINE; LAMBERT EMILIE; VASSE JEANLUC; SZYMONIAK JAN,期刊：Organic Letters, 页码：5128-5131 , 文章类型： Article，,卷期：2010年12-22] A highly diastereoselective synthesis of trans-2-substituted cyclopentylamines via a tandem hydrozirconation/Lewis acid-mediated cyclization sequence applied to butenyl oxazolidines is described. The method allows an eas... Nickel-Catalyzed Hydrosilylation/Cyclization of Difluoro-Substituted 1,6-Enynes [作者：TAKACHI MANABU; CHATANI NAOTO,期刊：Organic Letters, 页码：5132-5134 , 文章类型： Article，,卷期：2010年12-22] Ni-catalyzed hydrosilylative cyclization of difluoro-substituted 1,6-enynes can be carried out. The presence of a geminal-difluoromethylene group at an alkene terminus in enynes is essential for the reaction to proceed. Concise Synthesis of the Oxapentacyclic Core of Cortistatin A [作者：YU FANGMIAO; LI GUOZHI; GAO PENG; GONG HONGJU; LIU YINGHUA; WU YONGMING; CHENG BIN; ZHAI HONGBIN,期刊：Organic Letters, 页码：5135-5137 , 文章类型： Article，,卷期：2010年12-22] A concise synthetic approach for constructing the oxapentacyclic framework of cortistatin A is described. The synthesis features a furan-oxyallyl [4 + 3] cycloaddition and double-intramolecular aldol reactions. In additi... Modular Face-to-Face Assembly of Multichromophore Arrays That Absorb Across the Complete UV-Visible Spectrum and into the Near-IR [作者：ZHAO ZHIXIN; CAMMIDGE ANDREW N; HUGHES DAVID L; COOK MICHAEL J,期刊：Organic Letters, 页码：5138-5141 , 文章类型： Article，,卷期：2010年12-22] Defined face-to-face structures of phthalocyanine and porphyrin chromophores can be prepared using a modular strategy that allows directional, stepwise construction. mu-Oxo linkage between the central group of 14 metallo... Computational Design of a Self-Assembling beta-Peptide Oligomer [作者：KORENDOVYCH IVAN V; KIM YONG HO; RYAN ANDREW H; LEAR JAMES D; DEGRADO WILLIAM F; SHANDLER SCOTT J,期刊：Organic Letters, 页码：5142-5145 , 文章类型： Article，,卷期：2010年12-22] The first computationally designed self-assembling oligomer consisting of exclusively beta-amino acids (beta AAs) is presented. The packing of a beta-3(14) helix into coiled-coils of varying stoichiometries as a function...