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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43条记录   Intramolecular and Intermolecular Contributions to the Barriers for Rotation of Methyl Groups in Crystalline Solids: Electronic Structure Calculations and Solid-State NMR Relaxation Measurements [作者：WANG XIANLONG; BECKMANN PETER A; MALLORY CLELIA W; RHEINGOLD ARNOLD L; DIPASQUALE ANTONIO G; CARROLL PATRICK J; MALLORY FRANK B,期刊：Journal of Organic Chemistry, 页码：5170-5176 , 文章类型： Article，,卷期：2011年76-13] The rotation barriers for 10 different methyl groups in five methyl-substituted phenanthrenes and three methyl-substituted naphthalenes were determined by ab initio electronic structure calculations, both for the isolate... Synthesis, Crystal Structures, and Supramolecular Assemblies of Pyrrole-Based Anion Receptors Bearing Modified Pyrrole beta-Substituents [作者：HAKETA YOHEI; SAKAMOTO SHOHEI; CHIGUSA KENGO; NAKANISHI TAKASHI; MAEDA HIROMITSU,期刊：Journal of Organic Chemistry, 页码：5177-5184 , 文章类型： Article，,卷期：2011年76-13] Dipyrrolyldiketone BF2 complexes acting as acyclic anion receptors form supramolecular assemblies with structures and properties that are dependent on the pyrrole beta-substituents. In particular, although beta-alkyl sub... 3-(Hetero)aryl-4-indolylamino-alpha-tetralones by Diastereoselective Internal Redox Cyclization: An "Azaenamine" Conjugate Addition [作者：GHAVTADZE NUGZAR; NARAYAN RISHIKESH; WIBBELING BIRGIT; WUERTHWEIN ERNSTULRICH,期刊：Journal of Organic Chemistry, 页码：5185-5197 , 文章类型： Article，,卷期：2011年76-13] (E)-3-(Hetero)aryl-1-(2-((E)-(indolin-1-ylimino)methyl)phenyl)prop-2-en- 1-ones 1 undergo 6-exo-trig cyclization reactions upon treatment with BF3 center dot Me2S in dichloromethane at low temperature to give the tetralo... Catalytic Asymmetric Synthesis of a Tertiary Benzylic Carbon Center via Phenol-Directed Alkene Hydrogenation [作者：CAILLE SEB; CROCKETT RICH; RANGANATHAN KRISHNAKUMAR; WANG XIANG; WOO JACQUELINE C S; WALKER SHAWN D,期刊：Journal of Organic Chemistry, 页码：5198-5206 , 文章类型： Article，,卷期：2011年76-13] An expeditious synthetic approach to chiral phenol 1, a. key building block m the preparation of a series of drug candidates, is reported. The strategy includes a cost effective and readily scalable route to cyclopentano... Total Synthesis of Iejimalide B [作者：CHEN QINGSHOU; SCHWEITZER DIRK; KANE JOHN; DAVISSON V JO; HELQUIST PAUL,期刊：Journal of Organic Chemistry, 页码：5157-5169 , 文章类型： Article，,卷期：2011年76-13] Iejimalide B, a structurally unique 24-membered polyene macrolide having a previously underutilized mode of anticancer activity, was synthesized according to a strategy employing Julia-Kocienski olefinations, a palladium... Asymmetric Total Synthesis of (-)-Saframycin A from L-Tyrosine [作者：DONG WENFANG; LIU WEI; LIAO XIANGWEI; GUAN BAOHE; CHEN SHIZHI; LIU ZHANZHU,期刊：Journal of Organic Chemistry, 页码：5363-5368 , 文章类型： Article，,卷期：2011年76-13] The asymmetric total synthesis of (-)-saframycin A, a natural antitumor product of the tetrahydroisoquinoline antitumor antibiotics family, has been accomplished by employing L-tyrosine as the starting chiral building bl... Synthesis of Purine Nucleosides Built on a 3-Oxabicyclo[3.2.0]heptane Scaffold [作者：FLORES RAMON; RUSTULLET ALBERT; ALIBES RAMON; ALVAREZLARENA ANGEL; DE MARCH PEDRO; FIGUEREDO MARTA; FONT JOSEP,期刊：Journal of Organic Chemistry, 页码：5369-5383 , 文章类型： Article，,卷期：2011年76-13] The photochemical [2 + 2] cycloaddition of chiral 3-chloro and 3-fluoro-5-hydroxymethyl-2(5H)-furanone to ethylene and acetylene has been studied. The effect of the halogen atom on the chemical yield and facial diastereo... An Aza Cyclopropylcarbinyl-Homoallyl Radical Rearrangement-Radical Cyclization Cascade. Synthesis of Dibenzoimidazoazepine and Oxazepine Derivatives [作者：KHEBNIKOV ALEXANDER F; NOVIKOV MIKHAIL S; PETROVSKII PETR P; STOECKLIEVANS HELEN,期刊：Journal of Organic Chemistry, 页码：5384-5391 , 文章类型： Article，,卷期：2011年76-13] The cycloaddition of the dibenzoxazepinium W-ylides, generated by heating of trans-1-aryl-7,11b-dihydro-1H-azirino[1,2-a]dibenzo[c,f]azepines, to the C=N double bond of 3-aryl-2H-azirines proceeds endo-stereoselectively ... High-Pressure Access to the Delta(9)-cis- and Delta(9)-trans-Tetrahydrocannabinols Family [作者：MINUTI LUCIO; BALLERINI ELEONORA,期刊：Journal of Organic Chemistry, 页码：5392-5403 , 文章类型： Article，,卷期：2011年76-13] Diels-Alder reactions of a range of 1-(alkoxy/alkyl-substituted phenyl)buta-1,3-dienes with methyl vinyl ketone and methyl acrylate carried out in ethanol as the reaction medium under 9 kbar pressure were investigated. T... A Short Desymmetrization Protocol for the Coordination Environment in Bis-salphen Scaffolds [作者：ESCUDEROADAN EDUARDO C; MARTINEZ BELMONTE MARTA; MARTIN EDDY; SALASSA GIOVANNI; BENETBUCHHOLZ JORDI; KLEIJ ARJAN W,期刊：Journal of Organic Chemistry, 页码：5404-5412 , 文章类型： Article，,卷期：2011年76-13] A remarkable short preparation of desymmetrized bis-salphen scaffolds is presented. The protocol consists of an hydroxide-mediated hydrolysis of Lewis acidic bis-Zn-(salphen) complexes yielding C-s-symmetric diimine/amin... Switching of Enantioselectivity in the Catalytic Addition of Diethylzinc to Aldehydes by Regioisomeric Chiral 1,3-Amino Sulfonamide Ligands [作者：HIROSE TAKUJI; SUGAWARA KAZUYUKI; KODAMA KOICHI,期刊：Journal of Organic Chemistry, 页码：5413-5428 , 文章类型： Article，,卷期：2011年76-13] Twenty chiral 1,3-amino sulfonamides of two classes (2a-i and 3a-k) have been prepared from (-)-cis-2-benzamidocyclohexanecarboxylic acid (1) and studied as ligands for catalytic enantioselective addition of Et2Zn to a v... Reagents for Stereoselective Preparation of N-Carbamyl beta-D-Glucuronides [作者：BUNNELLE WILLIAM H,期刊：Journal of Organic Chemistry, 页码：5429-5432 , 文章类型： Article，,卷期：2011年76-13] Carbamyl glucuronidation is an increasingly well-recognized route of metabolism for secondary amine drugs. Proper characterization of these metabolites requires the synthesis of authentic standards. beta-Protected glucur... Total Synthesis and Bioactivity of 18(R)-Hydroxyeicosapentaenoic Acid [作者：KRISHNAMURTHY VENKATA R; DOUGHERTY ANN; HALLER CAROLYN A; CHAIKOF ELLIOT L,期刊：Journal of Organic Chemistry, 页码：5433-5437 , 文章类型： Article，,卷期：2011年76-13] Resolvins are family of lipid mediators derived from omega-3 polyunsaturated fatty acids, which are generated during the resolution phase of acute inflammation. Resolvin E1 is biosynthesized from eicosapentaenoic add via... General Base-Guanidinium Cooperation in Bifunctional Artificial Phosphodiesterases [作者：SALVIO RICCARDO; CACCIAPAGLIA ROBERTA; MANDOLINI LUIGI,期刊：Journal of Organic Chemistry, 页码：5438-5443 , 文章类型： Article，,卷期：2011年76-13] Artificial phosphodiesterases that combine a guanidinium unit with a general base connected by a m-xylylene linker catalyze the transesterification of the RNA model compound 2-hydroxypropyl p-nitrophenyl phosphate (HPNP)... Copper-Catalyzed Direct Oxidative C-H Amination of Benzoxazoles with Formamides or Secondary Amines under Mild Conditions [作者：LI YAMING; XIE YUSHENG; ZHANG RONG; JIN KUN; WANG XIUNA; DUAN CHUNYING,期刊：Journal of Organic Chemistry, 页码：5444-5449 , 文章类型： Article，,卷期：2011年76-13] A facile, efficient, and practical method for copper-catalyzed direct C-H amination of benzoxazoles with formamides or secondary amines has been developed. The system can be performed in the absence of external base and ... Catalytic Asymmetric Friedel-Crafts/Protonation of Nitroalkenes and N-Heteroaromatics [作者：ARAI TAKAYOSHI; AWATA ATSUKO; WASAI MAKIKO; YOKOYAMA NAOTA; MASU HYUMA,期刊：Journal of Organic Chemistry, 页码：5450-5456 , 文章类型： Article，,卷期：2011年76-13] The catalytic asymmetric Friedel-Crafts/protonation of indoles and pyrroles with a-substituted nitroalkenes to give the corresponding adducts in a highly anti-selective manner was achieved by an imidazoline aminophenol (...