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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96条记录   Versatile Configuration-Encoded Strategy for Rapid Synthesis of 1,5-Polyol Stereoisomers [作者：FRIESTAD GREGORY K; SREENILAYAM GOPEEKRISHNAN,期刊：Organic Letters, 页码：5016-5019 , 文章类型： Article，,卷期：2010年12-21] The isolated stereogenic centers of 1,5-polyol-containing natural products present challenges to synthesis and structure determination. To address this problem, a configuration-encoded strategy defines each configuration... Novel Method for Synthesizing Spiro[4.5]cyclohexadienones through a Pd-Catalyzed Intramolecular ipso-Friedel-Crafts Allylic Alkylation of Phenols [作者：NEMOTO TETSUHIRO; ISHIGE YUTA; YOSHIDA MARIKO; KOHNO YUTA; KANEMATSU MUTSUMI; HAMADA YASUMASA,期刊：Organic Letters, 页码：5020-5023 , 文章类型： Article，,卷期：2010年12-21] The first successful Pd-catalyzed intramolecular ipso-Friedel Crafts allylic alkylation of phenols, which provided a new access to spiro[4.5]cyclohexadienones, is described. The present method could be applied to catalyt... Phosphine-Catalyzed Tandem Reaction of Allenoates with Nitroalkenes [作者：GUAN XIAOYANG; WEI YIN; SHI MIN,期刊：Organic Letters, 页码：5024-5027 , 文章类型： Article，,卷期：2010年12-21] A P(p-FC6H4)(3)-catalyzed tandem reaction between ethyl 2,3-butadienoate and nitroalkenes has been developed, which involves a [3 + 2] cycloaddition and a subsequent umpolung addition. The asymmetric version of this tand... Total Synthesis of the Proposed Structure of Briarellin J [作者：CRIMMINS MICHAEL T; MANS MARK C; RODRIGUEZ ABIMAEL D,期刊：Organic Letters, 页码：5028-5031 , 文章类型： Article，,卷期：2010年12-21] The total synthesis of the originally proposed structure of briarellin J is reported in 15 steps from a known compound and in 23 steps from readily available materials. Key reactions include an exo-selective intramolecul... Mechanistic Insight into Direct Arylations with Ruthenium(II) Carboxylate Catalysts [作者：ACKERMANN LUTZ; VICENTE RUBEN; POTUKUCHI HARISH K; PIROVANO VALENTINA,期刊：Organic Letters, 页码：5032-5035 , 文章类型： Article，,卷期：2010年12-21] Mechanistic studies revealed ruthenium-catalyzed direct arylations to proceed through reversible C-H bond activation and subsequent rate-limiting oxidative addition with aryl halides, which led to the development of wide... Hexaazaphenalene Derivatives: One-Pot Synthesis, Hydrogen-Bonded Chiral Helix, and Fluorescence Properties [作者：SUZUKI SHUICHI; FUKUI KOZO; FUYUHIRO AKIRA; SATO KAZUNOBU; TAKUI TAKEJI; NAKASUJI KAZUHIRO; MORITA YASUSHI,期刊：Organic Letters, 页码：5036-5039 , 文章类型： Article，,卷期：2010年12-21] Symmetric hexaazaphenalenes (R = phenyl and tert-butyl) have been synthesized by one-pot condensations of corresponding amidine hydrochlorides with tricyanomethanide. The hexaazaphenalenes are linked with each other by a... Psiguadials A and B, Two Novel Meroterpenoids with Unusual Skeletons from the Leaves of Psidium guajava [作者：SHAO MENG; WANG YING; LIU ZHONG; ZHANG DONGMEI; CAO HUIHUI; JIANG RENWANG; FAN CHUNLIN; ZHANG XIAOQI; CHEN HERU; YAO XINSHENG; YE WENCAI,期刊：Organic Letters, 页码：5040-5043 , 文章类型： Article，,卷期：2010年12-21] Psiguadials A (1) and B (2), two novel sesquiterpenoid-diphenylmethane meroterpenoids with unusual skeletons, along with a pair of known epimers, psidial A (3) and guajadial (4), were isolated from the leaves of Psidium ... Diastereoselective Preparation of Azetidines and Pyrrolidines [作者：FEULA ANTONIO; MALE LOUISE; FOSSEY JOHN S,期刊：Organic Letters, 页码：5044-5047 , 文章类型： Article，,卷期：2010年12-21] Iodine-mediated cyclization of homoallyl amines at room temperature delivered cis-2,4-azetidine through a 4-exo trig cyclization. Isomerization of iodo-azetidines to cis-pyrrolidines could be achieved by heating, with co... Facile Synthesis of Tetrahydro-1H-isoindolones via a Sequential Three-Component Copper-Catalyzed Coupling/Propargyl-Allenyl Isomerization/[4+2] Cyclization Reaction [作者：CAO JIAN; HUANG XIAN,期刊：Organic Letters, 页码：5048-5051 , 文章类型： Article，,卷期：2010年12-21] An interesting sequential three-component copper-catalyzed coupling/propargyl-allenyl isomerization/[4 + 2] cyclization reaction, providing a facile synthesis of highly substituted tetrahydro-1H-isoindolones from conjuga... Organocatalytic Preparation of Simple beta-Hydroxy and beta-Amino Esters: Low Catalyst Loadings and Gram-Scale Synthesis [作者：JIANG HAO; GSCHWEND BJORN; ALBRECHT LUKASZ; JORGENSEN KARL ANKER,期刊：Organic Letters, 页码：5052-5055 , 文章类型： Article，,卷期：2010年12-21] A combined amino- and N-heterocyclic carbene (NHC)-catalyzed one-pot reaction sequence for the synthesis of simple enantioenriched beta-hydroxy and beta-amino esters using commercially available catalysts at low catalyst... Influence of beta-Substituents in Aldol Reactions of Boron Enolates of beta-Alkoxy Methylketones [作者：DIAS LUIZ C; DE LUCCA EMILIO C JR; FERREIRA MARCO A B; GARCIA DANILO C; TORMENA CLAUDIO F,期刊：Organic Letters, 页码：5056-5059 , 文章类型： Article，,卷期：2010年12-21] Moderate to good levels of substrate-based 1,5-syn-stereocontrol could be achieved in the boron-mediated aldol reactions of beta-tert-butyl methylketones with achiral aldehydes, independent of the nature of the beta-alko... Copper-Mediated Oxidative Trifluoromethylation of Boronic Acids [作者：CHU LINGLING; QING FENGLING,期刊：Organic Letters, 页码：5060-5063 , 文章类型： Article，,卷期：2010年12-21] A copper-mediated oxidative cross-coupling of aryl- and alkenylboronic acids with (trifluoromethyl)trimethylsilane (Me3SiCF3) under mild conditions has been developed. This method allows a wide range of functional group ... Catalytic Enantioselective Friedlander Condensations: Facile Access to Quinolines with Remote Stereogenic Centers [作者：LI LE; SEIDEL DANIEL,期刊：Organic Letters, 页码：5064-5067 , 文章类型： Article，,卷期：2010年12-21] Enamine catalysis enables the first catalytic enantioselective Friedlander reaction. The desymmetrization of 4-substituted cyclohexanones upon reaction with o-aminobenzaldehydes allows for the synthesis of quinolines wit... Total Synthesis of Incednam, the Aglycon of Incednine [作者：OHTANI TAKASHI; TSUKAMOTO SHINYA; KANDA HIROSHI; MISAWA KENSUKE; URAKAWA YOSHIFUMI; FUJIMAKI TAKAHIRO; IMOTO MASAYA; TAKAHASHI YOSHIKAZU; TAKAHASHI DAISUKE; TOSHIMA KAZUNOBU,期刊：Organic Letters, 页码：5068-5071 , 文章类型： Article，,卷期：2010年12-21] The first total synthesis of incednam (1), the aglycon of antibiotic incednine (2), is described. Incednine has been reported to exhibit significant inhibitory activity against the antiapoptotic oncoproteins Bcl-2 and Bc... gamma-Oxygenation of alpha,beta-Unsaturated Esters by Vinylogous O-Nitroso Mukaiyama Aldol Reaction [作者：TIAN GUOQIANG; YANG JIONG; ROSAPEREZ KELLYMAR,期刊：Organic Letters, 页码：5072-5074 , 文章类型： Article，,卷期：2010年12-21] A practical procedure has been developed for gamma-oxygenation of alpha,beta-unsaturated esters by a vinylogous O-nitroso Mukaiyama aldol reaction followed by a one-pot N-O bond heterolysis of the in situ generated gamma... Enantioselective Pd-Catalyzed Hydrogenation of Fluorinated Imines: Facile Access to Chiral Fluorinated Amines [作者：CHEN MUWANG; DUAN YING; CHEN QINGAN; WANG DUOSHENG; YU CHANGBIN; ZHOU YONGGUI,期刊：Organic Letters, 页码：5075-5077 , 文章类型： Article，,卷期：2010年12-21] An enantioselective hydrogenation of simple fluorinated imines has been developed using Pd(OCOCF3)(2)/(R)-Cl-MeO-BIPHEP as a catalyst, and up to 94% ee was achieved. This method provides an efficient route to enantioenri...