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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   Enantiospecific Synthesis of Pyridinones as Versatile Intermediates toward Asymmetric Piperidines [作者：GOUAULT NICOLAS; LE ROCH MYRIAM; CHEIGNON ADELE; URIAC PHILIPPE; DAVID MICHELE,期刊：Organic Letters, 页码：4371-4373 , 文章类型： Article，,卷期：2011年13-16] The enantiospecific syntheses of pyridinones from amino acids via a gold-catalyzed strategy are reported. Excellent stereocontrol was observed during the cyclization. This approach provides a straightforward tool for fur... Pd-Catalyzed Direct Cross-Coupling of Electron-Deficient Polyfluoroarenes with Heteroaromatic Tosylates [作者：FAN SHILU; YANG JIE; ZHANG XINGANG,期刊：Organic Letters, 页码：4374-4377 , 文章类型： Article，,卷期：2011年13-16] We report a Pd-catalyzed direct cross-coupling of electron-deficient polyfluoroarenes with heteroaromatic tosylates. The notable features of this reaction are its high reaction efficiency, excellent chemoselectivity, ope... Hexaazatriphenylene Derivatives with Tunable Lowest Unoccupied Molecular Orbital Levels [作者：WANG MING; LI YING; TONG HUI; CHENG YANXIANG; WANG LIXIANG; JING XIABIN; WANG FOSONG,期刊：Organic Letters, 页码：4378-4381 , 文章类型： Article，,卷期：2011年13-16] A series of n-type hexaazatriphenylene derivatives were synthesized by condensation coupling of 1,2-diamines and 1,2-diketones. The study of their photophysical and electrochemical properties showed that their lowest uno... Enantioselective Synthesis of Polycyclic Coumarin Derivatives Catalyzed by an in Situ Formed Primary Amine-Imine Catalyst [作者：ZHU XI; LIN AIJUN; SHI YAN; GUO JINGYU; ZHU CHENGJIAN; CHENG YIXIANG,期刊：Organic Letters, 页码：4382-4385 , 文章类型： Article，,卷期：2011年13-16] A facile in situ formed primary amine-imine organocatalyst was developed in the asymmetric Michael addition of substituted 4-hydroxycoumarins to cyclic enones. A series of optically active polycyclic coumarin derivatives... Ferrocene-Appended Aryl Triazole for Electrochemical Recognition of Phosphate Ions [作者：CAO QIANYONG; PRADHAN TUHIN; KIM SUNGTAE; KIM JONG SEUNG,期刊：Organic Letters, 页码：4386-4389 , 文章类型： Article，,卷期：2011年13-16] A neutral ferrocene-appended aryl triazole receptor 1 for phosphate anions has been synthesized and characterized by X-ray crystal analysis. Among various anions, 1 shows a distinct electrochemical recognition of phospha... Rhodium-Catalyzed Oxidative ortho-Acylation of Benzamides with Aldehydes: Direct Functionalization of the sp(2) C-H Bond [作者：PARK JIHYE; PARK EONJEONG; KIM AEJIN; LEE YOUNGIL; CHI KIWHAN; KWAK JONG HWAN; JUNG YOUNG HOON; KIM IN SU,期刊：Organic Letters, 页码：4390-4393 , 文章类型： Article，,卷期：2011年13-16] A rhodium-catalyzed oxidative acylation of benzamides with aryl aldehydes via direct sp(2) C-H bond cleavage is described. In the presence of [Cp*RhCl(2)](2), AgSbF(6), and silver carbonate as an oxidant, N,N-diethyl ben... Palladium-Catalyzed Direct Cross-Coupling Reaction of Glycals with Activated Alkenes [作者：BAI YAGUANG; ZENG JING; CAI SHUTING; LIU XUEWEI,期刊：Organic Letters, 页码：4394-4397 , 文章类型： Article，,卷期：2011年13-16] An efficient method for a Pd(OAc)(2)-catalyzed cross-coupling reaction of glycals with activated alkenes under mild conditions has been developed. This transformation provides an expedient synthetic method to C(2)-functi... Synthesis of the Macrocyclic Core of Leiodermatolide [作者：PATERSON IAN; PAQUET TANYA; DALBY STEPHEN M,期刊：Organic Letters, 页码：4398-4401 , 文章类型： Article，,卷期：2011年13-16] The macrocyclic core (2) of the marine macrolide leiodermatolide (1) has been synthesized in 19 steps through a convergent strategy exploiting boron aldol methodology to Install the requisite stereochemistry and a select... Asymmetric Aza-[3+3] Annulation in the Synthesis of Indolizidines: An Unexpected Reversal of Regiochemistry [作者：BUCHANAN GRANT S; DAI HUIFANG; HSUNG RICHARD P; GERASYUTO ALEKSEY I; SCHEINEBECK CASI M,期刊：Organic Letters, 页码：4402-4405 , 文章类型： Article，,卷期：2011年13-16] An enantioselective and diastereoselective aza-[3 + 3] annulation of pyrrolidine-based exo-cyclic vinylogous amides and urethanes with chiral vinyl iminium salts is described. This asymmetric annulation manifold is possi... Efficient Synthesis of Dissymmetric Malonic Acid S,O-Esters via Monoalcoholysis of Symmetric Dithiomalonates under Neutral Conditions [作者：MATSUO KAZUMASA; SHINDO MITSURU,期刊：Organic Letters, 页码：4406-4409 , 文章类型： Article，,卷期：2011年13-16] A novel method for the highly selective synthesis of dissymmetric S,O-malonates starting from symmetric diphenyl dithiomalonates under neutral conditions is described. The key step is the thermal formation of an acylkete... A Modular Synthesis of Salvileucalin B Structural Domains [作者：TSENG CHIHCHUNG; DING HANFENG; LI ANG; GUAN YUCUI; CHEN DAVID Y K,期刊：Organic Letters, 页码：4410-4413 , 文章类型： Article，,卷期：2011年13-16] A modular strategy leading to the salvileucalin B core structure has been accomplished. The developed synthetic strategy featured a bioinspired intramolecular Diels-Alder reaction to construct domain "A", REDOX chemistry... Synthesis of Fully Substituted Polyhydroxylated Pyrrolizidines via Cope-House Cyclization [作者：ZHANG WEI; SATO KASUMI; KATO ATSUSHI; JIA YUEMEI; HU XIANGGUO; WILSON FRANCIS X; VAN WELL RENATE; HORNE GRAEME; FLEET GEORGE W J; NASH ROBERT J; YU CHUYI,期刊：Organic Letters, 页码：4414-4417 , 文章类型： Article，,卷期：2011年13-16] Total synthesis of the proposed structure of (-)-hyacinthacine C(5) and its epimers at C6 and C7 is described. A key step of the synthesis was the construction of the bicyclic pyrrolizidine system by means of a nucleophi... Synthesis and Properties of a Blue Bipolar Indenofluorene Emitter Based on a D-pi-A Design [作者：THIRION DAMIEN; RAULTBERTHELOT JOEELLE; VIGNAU LAURENCE; PORIEL CYRIL,期刊：Organic Letters, 页码：4418-4421 , 文章类型： Article，,卷期：2011年13-16] Through a rational design, a novel Donor-Acceptor pi-conjugated (D-pi-A) blue fluorescent indenofluorene dye, DA-DSF-IF, has been synthesized for application In single-layer Small Molecule Organic Light Emitting Diodes (... Microwave-Assisted Domino Access to C(2)-Chain Functionalized Furans from Tertiary Propargyl Vinyl Ethers [作者：TEJEDOR DAVID; COTOS LEANDRO; GARCIATELLADO FERNANDO,期刊：Organic Letters, 页码：4422-4425 , 文章类型： Article，,卷期：2011年13-16] Tertiary propargyl vinyl ethers armed with an electron-withdrawing group (amide or ester) at the tertiary propargylic position have been efficiently transformed Into trisubstituted C(2)-chain functionalized furans. The m... Organocatalytic Asymmetric Sulfa-Michael Addition of Thiols to 4,4,4-Trifluorocrotonates [作者：DONG XIUQIN; FANG XIN; WANG CHUNJIANG,期刊：Organic Letters, 页码：4426-4429 , 文章类型： Article，,卷期：2011年13-16] The first asymmetric sulfa-Michael addition of thiols to 4,4,4-trifluorocrotonates for the construction of a stereogenic center bearing a unique trifluoromethyl group and a sulfur atom has been achieved in high yields an... Diels-Alder Cycloaddition of Chiral Nonracemic 2,5-Diketopiperazine Dienes [作者：MORRIS ERIN N; NENNINGER E KATHERINE; PIKE ROBERT D; SCHEERER JONATHAN R,期刊：Organic Letters, 页码：4430-4433 , 文章类型： Article，,卷期：2011年13-16] Preparation of a chiral, nonracemic 2,5-diketopiperazine diene has enabled the Investigation of Intermolecular hetero-Diels-Alder cycloadditions. The diketopiperazine diene is reactive with both electron-rich and -defici...