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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84条记录   Nucleophilic Ring Opening of Cyclopropane Hemimalonates Using Internal Bronsted Acid Activation [作者：EMMETT MICHAEL R; KERR MICHAEL A,期刊：Organic Letters, 页码：4180-4183 , 文章类型： Article，,卷期：2011年13-16] The reaction of cyclopropanes, geminally disubstituted with one carboalkoxy and one carbohydroxy group, undergoes ring-opening reactions with indole nucleophiles under catalyst-free, hyperbaric (13 kbar) conditions. An i... Synthesis of 2,5-Dihydropyridine Derivatives by Gold-Catalyzed Reactions of beta-Ketoesters and Propargylamines [作者：FANANAS FRANCISCO J; ARTO TAMARA; MENDOZA ABRAHAM; RODRIGUEZ FELIX,期刊：Organic Letters, 页码：4184-4187 , 文章类型： Article，,卷期：2011年13-16] The reaction of simple beta-ketoesters and propargylamines under gold(III) catalysis leads to the formation of the elusive 2,5-dihydropyridine system. This new reaction provides the synthesis of potentially bioactive com... Highly Chromic, Proton-Responsive Phenyl Pyrimidones [作者：DHUGURU JYOTHI; GHEEWALA CHIRAG; KUMAR N S SALEESH; WILSON JAMES N,期刊：Organic Letters, 页码：4188-4191 , 文章类型： Article，,卷期：2011年13-16] Aryl pyrimidones are pharmacologically relevant compounds whose optical properties have only been partially explored. We report the synthesis and optical characterization of a series of aryl- and diaryl-2(1H)-pyrimidones... The Diastereoselective Alkylation of Arenesulfenate Anions Using Homochiral Electrophiles [作者：SOEDERMAN STEFAN C; SCHWAN ADRIAN L,期刊：Organic Letters, 页码：4192-4195 , 文章类型： Article，,卷期：2011年13-16] A series of Boc-protected beta-amino sulfoxides were prepared by the reaction of arenesulfenate anions with chiral Boc-protected beta-amino iodides. The stereoselective substitution reaction Is believed to arise through ... Palladium-/Copper-Catalyzed Regioselective Amination and Chloroamination of Indoles [作者：LIU XUEYUAN; GAO PIN; SHEN YONGWEN; LIANG YONGMIN,期刊：Organic Letters, 页码：4196-4199 , 文章类型： Article，,卷期：2011年13-16] A palladium-/copper-catalyzed intermolecular C-H amination reaction of indoles has been developed. This reaction proceeds in good to excellent yields to produce a variety of 2-amino-substituted indoles and exhibits excel... A Ferrier-Type Allylic Rearrangement of 3 '-Deoxy-3 ',4 '-didehydronucleosides Mediated by DMF Dimethyl Acetal: Direct Access to 4 '-Alkoxy-2 ',3 '-didehydro-2 ',3 '-dideoxynucleosides [作者：PETROVA MAGDALENA; BUDESINSKY MILOS; ZBORNIKOVA EVA; FIEDLER PAVEL; ROSENBERG IVAN,期刊：Organic Letters, 页码：4200-4203 , 文章类型： Article，,卷期：2011年13-16] A straightforward synthesis of epimeric 4'-alkoxy-substituted 2',3'-didehydro-2',3'-dideoxynucleosides via a DMF dimethyl acetal mediated allylic rearrangement of 3'-deoxy-3',4'-didehydronucleosides is described. Discovery and Process Synthesis of Novel 2,7-Pyrrolo[2,1-f][1,2,4]triazines [作者：THIEU THO; SCLAFANI JOSEPH A; LEVY DANIEL V; MCLEAN ANDREW; BRESLIN HENRY J; OTT GREGORY R; BAKALE ROGER P; DORSEY BRUCE D,期刊：Organic Letters, 页码：4204-4207 , 文章类型： Article，,卷期：2011年13-16] The synthesis of a new kinase inhibitor template 2-anilino-7-aryl-pyrrolo[2,1-f][1,2,4]triazine Is described which Includes a late stage orthogonally reactive key intermediate amenable to rapid diversification as well an... CuCl(2)-Promoted 6-endo-dig Chlorocyclization and Oxidative Aromatization Cascade: Efficient Construction of 1-Azaanthraquinones from N-Propargylaminoquinones [作者：FEI NA; YIN HAO; WANG SHAOZHONG; WANG HUAQIN; YAO ZHUJUN,期刊：Organic Letters, 页码：4208-4211 , 文章类型： Article，,卷期：2011年13-16] An efficient synthetic methodology was developed to assemble 1-azaanthraquinones from N-propargylaminoquinones by copper(II)-promoted sequential 6-endo-dig chlorocyclization and oxidative aromatization. The approach can ... A Hydrogen Peroxide Based Access to Qinghaosu (Artemisinin) [作者：HAO HONGDONG; LI YUN; HAN WEIBO; WU YIKANG,期刊：Organic Letters, 页码：4212-4215 , 文章类型： Article，,卷期：2011年13-16] Attachment of H(2)O(2) onto the highly hindered quaternary C-12a in an advanced qinghaosu (artemisinin) precursor has been achieved through a facile perhydrolysis of a spiro epoxy ring with the aid of a previously unknow... Synthesis of Peptides Containing Overlapping Lanthionine Bridges on the Solid Phase: An Analogue of Rings D and E of the Lantibiotic Nisin [作者：MOTHIA BEGUM; APPLEYARD ANTONY N; WADMAN SJOERD; TABOR ALETHEA B,期刊：Organic Letters, 页码：4216-4219 , 文章类型： Article，,卷期：2011年13-16] A methodology for the solid-phase synthesis of the overlapping lanthionine bridges found in many lantibiotics has been developed. A novel Teoc/TMSE-protected lanthionine derivative has been synthesized, and this lanthion... A Novel Synthesis of Fluorinated Pyrazoles via Gold(I)-Catalyzed Tandem Aminofluorination of Alkynes in the Presence of Selectfluor [作者：QIAN JIANQIANG; LIU YUNKUI; ZHU JIE; JIANG BO; XU ZHENYUAN,期刊：Organic Letters, 页码：4220-4223 , 文章类型： Article，,卷期：2011年13-16] A mild and efficient protocol for the synthesis of fluorinated pyrazoles has been developed via gold(I)-catalyzed tandem aminofluorination of alkynes in the presence of Selectfluor. This method offers a broad substrate s... Syntheses of Chloroisosulochrin and Isosulochrin and Biomimetic Elaboration to Maldoxin, Maldoxone, Dihydromaldoxin, and Dechlorodihydromaldoxin [作者：YU MIN; SNIDER BARRY B,期刊：Organic Letters, 页码：4224-4227 , 文章类型： Article，,卷期：2011年13-16] An efficient synthesis of chloroisosulochrin was accomplished using a novel ortho-selective chlorination of a phenol with sulfuryl chloride and 2,2,6,6-tetramethylpiperidine as the key step. Further elaboration by a biom... Gold Catalyzed Cyclization of Alkyne-Tethered Dihydropyrimidones [作者：BROWN LAUREN E; DAI PENG; PORCO JOHN A JR; SCHAUS SCOTT E,期刊：Organic Letters, 页码：4228-4231 , 文章类型： Article，,卷期：2011年13-16] Dihydropyrimidones are an important class of biologically active heterocycles accessible from the multicomponent Biginelli condensation. Further manipulation of the dihydropyrimidone skeleton gives access to unique heter... Synthesis of Coronafacic Acid via TBAF-Assisted Elimination of the Mesylate and Its Conversion to the Isoleucine Conjugate [作者：KOSAKI YUSUKE; OGAWA NARIHITO; WANG QIAN; KOBAYASHI YUICHI,期刊：Organic Letters, 页码：4232-4235 , 文章类型： Article，,卷期：2011年13-16] An aldol reaction followed by elimination of the derived mesylate was used to construct the side chain that was designed to afford the cyclohexene ring of coronafacic acid via intramolecular alkylation. Elimination of th... Modular Synthesis of Naphthothiophenes by Pd-Catalyzed Tandem Direct Arylation/Suzuki Coupling [作者：NICOLAUS NORMAN; FRANKE PATRICK T; LAUTENS MARK,期刊：Organic Letters, 页码：4236-4239 , 文章类型： Article，,卷期：2011年13-16] A short and highly modular three-step synthesis of a new class of substituted naphthothiophenes has been developed exploiting a Pd-catalyzed tandem direct arylation/Suzuki coupling transformation as the key step. Palladium-Catalyzed Decarboxylative Coupling of Potassium Nitrophenyl Acetates with Aryl Halides [作者：SHANG RUI; HUANG ZHENG; CHU LING; FU YAO; LIU LEI,期刊：Organic Letters, 页码：4240-4243 , 文章类型： Article，,卷期：2011年13-16] A palladium-catalyzed decarboxylative cross-coupling of potassium 2- and 4-nitrophenyl acetates with aryl chlorides and bromides has been developed. Because the nitro group can be readily converted to many other function...