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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15条记录   Strategies for Spiroketal Synthesis Based on Transition-Metal Catalysis [作者：PALMES JEAN A; APONICK AARON,期刊：Synthesis, 页码：3699-3721 , 文章类型： Review，,卷期：2012年44-24] The transition-metal-catalyzed synthesis of spiroketals is a rapidly growing area and these methods have facilitated the use of new spiroketal synthons as latent spiroketal equivalents. This review highlights the differe... Copper on Iron: Catalyst and Scavenger for Azide-Alkyne Cycloaddition [作者：KOVACS SZABOLCS; ZIHPERENYI KATALIN; REVESZ ADAM; NOVAK ZOLTAN,期刊：Synthesis, 页码：3722-3730 , 文章类型： Article，,卷期：2012年44-24] Dipolar cycloaddition of terminal alkynes and azides catalyzed by the Cu/Fe bimetallic system is reported. In the presence of a readily accessible nanosized copper source, the cycloaddition reaction can be easily achieve... Gram-Scale Quaternarization of the Anomeric Position of Carbohydrates: Dramatic Effects of Molecular Sieves on Rhodium(II)-Mediated Decomposition of Diazo Sugars [作者：BOULTADAKISARAPINIS MELISSA; LESCOT CAMILLE; MICOUIN LAURENT; LECOURT THOMAS,期刊：Synthesis, 页码：3731-3734 , 文章类型： Article，,卷期：2012年44-24] The optimization of rhodium(II) carbene mediated quaternarization of the anomeric position of carbohydrates is reported. Preparation of ketopyranosides in good and reliable yields requires reverse addition of the substra... Copper-Catalyzed Ring Opening of Furans as a Concise Route to Polysubstituted Furans under Mild Conditions [作者：YIN BIAOLIN; YU HUIYUE; LI ZHENGRONG; ZHONG WEIQIANG; GU WENXIANG,期刊：Synthesis, 页码：3735-3742 , 文章类型： Article，,卷期：2012年44-24] A range of polysubstituted furans were synthesized from furan derivatives involving copper-catalyzed ring opening of the furan ring. This synthetic method possesses the advantages of readily available starting materials,... Iron(III) Chloride Promoted Desulfitative C-C Coupling Reaction of alpha-Oxo Ketene Dithioacetals and Indoles: Highly Selective Synthesis of beta,beta-Bisindolyl and beta-Indolyl alpha,beta-Unsaturated Carbonyl Compounds [作者：YU HAIFENG; LI TIECHUN; LIAO PEIQIU,期刊：Synthesis, 页码：3743-3756 , 文章类型： Article，,卷期：2012年44-24] The iron(III) chloride promoted desulfitative C-C coupling of alpha-oxo ketene dithioacetals with indoles was developed for the synthesis of indole derivatives. In the presence of iron(III) chloride, alpha-oxo ketene dit... Stereospecific Synthesis and Biological Evaluation of Monodesmethyl Metabolites of (+)-13a-(S)-Deoxytylophorinine as Potential Antitumor Agents [作者：YU PENGFEI; LV HAINING; LI CHAO; REN JINHONG; MA SHAUNGGANG; XU SONG; CHEN XIAOGUANG; YU SHISHAN,期刊：Synthesis, 页码：3757-3764 , 文章类型： Article，,卷期：2012年44-24] Three major monodesmethyl metabolites of (+)-13a-(S)-deoxytylophorinine were synthesized stereospecifically and their configurations at C-13a were determined. Biological assays revealed that one of the metabolites, 3-O-d... Stereoselective Synthesis of Novel 2-Alkenyl-2,3,4,5-tetrahydro-1,4-epoxy-1-benzazepines and 2-Alkenyl-2,3,4,5-tetrahydro-1H-1-benzazepin-4-ols [作者：ACOSTA QUINTERO LINA MARIA; PALMA ALIRIO; NOGUERAS MANUEL; COBO JUSTO,期刊：Synthesis, 页码：3765-3782 , 文章类型： Article，,卷期：2012年44-24] New series of polyfunctionalized 2,3,4,5-tetrahydro-1,4-epoxy-1-benzazepines and 2,3,4,5-tetrahydro-1H-1-benzazepin-4-ols substituted at C2 with 2-methylprop-1-enyl, (E)-styryl, and (E)pent-1-enyl were synthesized starti... Novel Synthesis of 4,5-Unsubstituted 2,3-Dihydroisoxazoles from 5-Acetoxyisoxazolidines [作者：FISCHER ROBERT; LACKOVICOVA DANIELA; FISERA LUBOR,期刊：Synthesis, 页码：3783-3788 , 文章类型： Article，,卷期：2012年44-24] A new synthetic method for the preparation of 4,5-unsubstituted 2,3-dihydroisoxazoles from readily available 5-acetoxyisoxazolidines is presented. Elimination reactions are carried out in anhydrous N-methylpyrrolidin-2-o... Enantioselective Synthesis of Axially Chiral Tetrasubstituted Allenes via Lipase-Catalyzed Desymmetrization [作者：HAMMEL MATTHIAS; DESKA JAN,期刊：Synthesis, 页码：3789-3796 , 文章类型： Article，,卷期：2012年44-24] Lipase from Pseudomonas fluorescens efficiently catalyzes the transesterification of prochiral tetrasubstituted allenic diols yielding highly enantioenriched axially chiral allenyl monoesters. In combination with subsequ... Synthetic Studies towards NG-121: Diastereoselective Synthesis of NG-121 Methyl Ether [作者：SINGH MANDEEP; ARGADE NARSHINHA P,期刊：Synthesis, 页码：3797-3804 , 文章类型： Article，,卷期：2012年44-24] Starting from unsymmetrically O-protected methyl 4-bromo-3,5-dihydroxybenzoate, a facile synthesis of the methyl ether of bioactive natural product NG-121 was accomplished in very good overall yield. The key steps were: ... Palladium-Catalyzed Synthesis of Mono- and Diphosphorylated 1,10-Phenanthrolines [作者：MITROFANOV ALEXANDRE; LEMEUNE ALLA BESSMERTNYKH; STERN CHRISTINE; GUILARD ROGER; GULYUKINA NATALIYA; BELETSKAYA IRINA,期刊：Synthesis, 页码：3805-3810 , 文章类型： Article，,卷期：2012年44-24] A general protocol for the coupling of mono- and dihalo-1,10-phenanthrolines with diethyl phosphite is reported. This reaction proceeds smoothly in the presence of a Pd(OAc)(2)/dppf catalytic system and triethylamine as ... Synthesis of Indoles by Copper-Catalyzed Heteroannulation of o-Aminophenylboronic Acid Pinacol Esters with beta-Keto Esters [作者：BUNESCU ALA; WANG QIAN; ZHU JIEPING,期刊：Synthesis, 页码：3811-3814 , 文章类型： Article，,卷期：2012年44-24] Copper-catalyzed coupling of o-aminophenylboronic acid pinacol esters with beta-keto esters afforded, under mild base-free oxidative conditions, 2,3-disubstituted indoles featuring a key Chan-Lam-type carbon-carbon bond-... [RuH2(PPh3)(4)]-Catalyzed Michael Addition Reaction of alpha-Fluoronitroalkanes [作者：WANG QI; CHEN QINGYUN; YANG XIANJIN; GUO YONG,期刊：Synthesis, 页码：3815-3821 , 文章类型： Article，,卷期：2012年44-24] The Michael addition reactions of alpha-fluoronitroalkanes with various electron-deficient olefins were realized by catalysis of low-valence ruthenium species through C-sp3-H activation, providing a useful way to constru... Synthetic Approaches towards 4-Functionalized Estrone Derivatives [作者：SCHOEN UWE; MESSINGER JOSEF; SOLODENKO WLADIMIR; KIRSCHNING ANDREAS,期刊：Synthesis, 页码：3822-3828 , 文章类型： Article，,卷期：2012年44-24] Directed ortho-lithiation of estrone carbamate followed by reaction with electrophiles afforded 2-substituted estrone derivatives. Reductive cleavage of the carbamate group followed by O-allylation and Claisen rearrangem... Versatile Synthesis of Dissymmetric Diarylideneacetones via a Palladium-Catalyzed Coupling-Isomerization Reaction [作者：GENDRON THIBAULT; DAVIOUDCHARVET ELISABETH; MUELLER THOMAS J J,期刊：Synthesis, 页码：3829-3835 , 文章类型： Article，,卷期：2012年44-24] As a twofold Michael system, the diarylideneacetone core is of particular interest in organic synthesis and for therapeutic applications. To overcome the drawbacks of the classical Claisen-Schmidt protocol, a new methodo...