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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48条记录   Diamine-Catalyzed Conjugate Addition to Acrylate Derivatives [作者：TONG BENNY MENG KIAT; CHIBA SHUNSUKE,期刊：Organic Letters, 页码：2948-2951 , 文章类型： Article，,卷期：2011年13-11] Diamines were found to promote catalytic conjugate addition of alpha-cyano active methine nucleophiles to various acrylate derivatives. Silver-Catalyzed Cycloisomerization of 1,n-Allenynamides [作者：GARCIA PIERRE; HARRAK YOUSSEF; DIAB LISA; CORDIER PIERRE; OLLIVIER CYRIL; GANDON VINCENT; MALACRIA MAX; FENSTERBANK LOUIS; AUBERT CORINNE,期刊：Organic Letters, 页码：2952-2955 , 文章类型： Article，,卷期：2011年13-11] A variety of allenynamides can undergo cycloisomerization reactions in the presence of silver triflate thus leading to the formation of N-containing heterocycles incorporating cross-conjugated trienes. Access to new dien... Concise Total Synthesis of (+/-)-Dasyscyphin D [作者：ZHANG LING; XIE XINGANG; LIU JIAN; QI JING; MA DONGHUI; SHE XUEGONG,期刊：Organic Letters, 页码：2956-2958 , 文章类型： Article，,卷期：2011年13-11] The first and efficient total synthesis of (+/-)-dasyscyphin D was achieved in 9 steps with 22.6% overall yield. The key steps involved a PtCl2-catalyzed pentannulation reaction and acid-catalyzed double Robinson annulat... Rhenium-Catalyzed Regio- and Stereoselective Addition of Two Carbon Units to Terminal Alkynes via Carbon-Carbon Bond Cleavage of beta-Keto Sulfones [作者：KUNINOBU YOICHIRO; MATSUZAKI HIRONORI; NISHI MITSUMI; TAKAI KAZUHIKO,期刊：Organic Letters, 页码：2959-2961 , 文章类型： Article，,卷期：2011年13-11] Treatment of beta-keto sulfones with terminal alkynes gave unsaturated delta-keto sulfones in good to excellent yields under rhenium catalysis. In this reaction, the insertion of the alkynes into the nonstrained carbon-c... Intramolecular Alkene Carboamination Reactions for the Synthesis of Enantiomerically Enriched Tropane Derivatives [作者：SCHULTZ DANIELLE M; WOLFE JOHN P,期刊：Organic Letters, 页码：2962-2965 , 文章类型： Article，,卷期：2011年13-11] The synthesis of tropane derivatives via intramolecular Pd-catalyzed alkene difunctionalization reactions is described. Enantiopure N-aryl-gamma-aminoalkenes bearing an aryl or alkenyl halide adjacent to the amino group ... Generation of Nitrile Oxides from Oximes Using t-BuOI and Their Cycloaddition [作者：MINAKATA SATOSHI; OKUMURA SOTA; NAGAMACHI TOSHIKI; TAKEDA YOUHEI,期刊：Organic Letters, 页码：2966-2969 , 文章类型： Article，,卷期：2011年13-11] tert-Butyl hypoiodite (t-BuOI) was found to be a powerful reagent for the cycloaddition of oximes and alkenes/alkynes, leading to the formation of a variety of isoxazolines or isoxazoles under mild conditions. Preparation of Functional Benzofurans, Benzothiophenes, and Indoles Using Ester, Thioester, and Amide via Intramolecular Wittig Reactions [作者：SYU SIANGEN; LEE YUTING; JANG YEONGJIUNN; LIN WENWEI,期刊：Organic Letters, 页码：2970-2973 , 文章类型： Article，,卷期：2011年13-11] Preparation of new types of highly functional benzofurans, benzothiophenes, and indoles Is realized via intramolecular Wittig reactions with the corresponding ester, thioester, and amide functionalities. The key Intermed... Pairing Heterocyclic Cations with closo-Icosahedral Borane and Carborane Anions (vol 11, pg 2623, 2009) [作者：SHACKELFORD SCOTT A; BELLETIRE JOHN L; BOATZ JERRY A; SCHNEIDER STEFAN; WHEATON AMANDA K; WIGHT BRETT A; HUDGENS LESLIE M; AMMON HERMAN L; STRAUSS STEVEN H,期刊：Organic Letters, 页码：2974-2974 , 文章类型： Correction，,卷期：2011年13-11] Asymmetric Synthesis of alpha-Keto Esters via Cu(II)-Catalyzed Aerobic Deacylation of Acetoacetate Alkylation Products: An Unusually Simple Synthetic Equivalent to the Glyoxylate Anion Synthon (vol 13, pg 2426, 2011) [作者：STEWARD KIMBERLY M; JOHNSON JEFFREY S,期刊：Organic Letters, 页码：2975-2975 , 文章类型： Correction，,卷期：2011年13-11] Cu(II)-Catalyzed Synthesis of Primary Amides from Aldehydes (vol 13, pg 2976, 2011) [作者：DAS RIMA; CHAKRABORTY DEBASHIS,期刊：Organic Letters, 页码：2976-2976 , 文章类型： Correction，,卷期：2011年13-11] Ratiometric Fluorescence Imaging of Cellular Glutathione [作者：KIM GUNJOONG; LEE KIWON; KWON HYOCKMAN; KIM HAEJO,期刊：Organic Letters, 页码：2799-2801 , 文章类型： Article，,卷期：2011年13-11] A fluorescent probe (1) with a hydrogen bond was designed for the detection of GSH. The probe exhibited a rapid and ratiometric fluorescence response to GSH through a Michael reaction and allowed us to obtain clear cellu... Intermolecular Energy Transfer from Tb3+ to Eu3+ in Aqueous Aggregates and on the Surface of Human Cells [作者：LEE MINHEE; TREMBLAY MATTHEW S; JOCKUSCH STEFFEN; TURRO NICHOLAS J; SAMES DALIBOR,期刊：Organic Letters, 页码：2802-2805 , 文章类型： Article，,卷期：2011年13-11] Efficient intermolecular energy transfer from carbostyril 124-sensitized Tb3+ to Eu3+ in aqueous aggregates is reported. This energy transfer was also recapitulated on the cell surface of a human kidney cell line (HEK-29... (R)-3,5-diCF(3)-SYNPHOS and (R)-p-CF3-SYNPHOS, Electron-Poor Diphosphines for Efficient Room Temperature Rh-Catalyzed Asymmetric Conjugate Addition of Arylboronic Acids [作者：BERHAL FAROUK; ESSEIVA OLIVIER; MARTIN CHARLESHENRI; TONE HITOSHI; GENET JEANPIERRE; AYAD TAHAR; RATOVELOMANANAVIDAL VIRGINIE,期刊：Organic Letters, 页码：2806-2809 , 文章类型： Article，,卷期：2011年13-11] Two new atropisomeric electron-poor chiral diphosphine ligand analogues of SYNPHOS were prepared, and their electronic properties are described. These two ligands afforded high performance for the Rh-catalyzed asymmetric... Enantioselective Iridium-Catalyzed Allylic Substitutions with Hydroxamic Acid Derivatives as N-Nucleophiles [作者：GAERTNER MARTIN; JAEKEL MASCHA; ACHATZ MANUEL; SONNENSCHEIN CHRISTOPH; TVERSKOY OLENA; HELMCHEN GUENTER,期刊：Organic Letters, 页码：2810-2813 , 文章类型： Article，,卷期：2011年13-11] Enantioselective Ir-catalyzed allylic aminations with hydroxamic acid derivatives are described. Catalysts were prepared in situ from [Ir(cod)Cl](2) or [Ir(dbcot)Cl](2), a phosphoramidite and base. In addition, pure (pi-... Cyclopropenium Cation Promoted Dehydrative Glycosylations Using 2-Deoxy- and 2,6-Dideoxy-Sugar Donors [作者：NOGUEIRA JASON M; SON HONG NGUYEN; BENNETT CLAY S,期刊：Organic Letters, 页码：2814-2817 , 文章类型： Article，,卷期：2011年13-11] Dehydrative glycosylation reactions using 2-deoxy- and 2,6-dideoxy-sugar donors promoted by a combination of 3,3-dichloro-1,2-diphenylcyclopropene and tetrabutylammonium iodide (TBAI) are described. The reactions are a-s... A Simple Copper-Catalyzed Synthesis of Tertiary Acyclic Amides [作者：RACINE EMILIE; MONNIER FLORIAN; VORS JEANPIERRE; TAILLEFER MARC,期刊：Organic Letters, 页码：2818-2821 , 文章类型： Article，,卷期：2011年13-11] The N-arylation of aromatic and aliphatic secondary acyclic amides, known to be poor nucleophiles, has been accomplished using a simple and cheap copper catalytic system. The corresponding tertiary acyclic amides, which ...