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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75条记录   Iridium-Catalyzed Direct Tetraborylation of Perylene Bisimides [作者：TERAOKA TAKURO; HIROTO SATORU; SHINOKUBO HIROSHI,期刊：Organic Letters, 页码：2532-2535 , 文章类型： Article，,卷期：2011年13-10] Treatment of perylene bisimides (PBIs) with bls(pinacolato)diboron in the presence of an iridium catalyst provides tetraborylated PBIs at 2,5,8,11-positions in good yields with perfect regioselectivity. The planar struct... Identification of a Tetraene-Containing Product of the Indanomycin Biosynthetic Pathway [作者：ROMMEL KATHRYN R; LI CHAOXUAN; KELLY WENDY L,期刊：Organic Letters, 页码：2536-2539 , 文章类型： Article，,卷期：2011年13-10] The indanomycin biosynthetic gene (idm) cluster was recently identified from Streptomyces antibioticus NRRL 8167. The disruption of one of these genes, idmH, and the increased production of a previously unreported metabo... Asymmetric Bioreduction of Alkenes Using Ene-Reductases YersER and KYE1 and Effects of Organic Solvents [作者：YANTO YANTO; WINKLER CHRISTOPH K; LOHR STEPHANIE; HALL MELANIE; FABER KURT; BOMMARIUS ANDREAS S,期刊：Organic Letters, 页码：2540-2543 , 文章类型： Article，,卷期：2011年13-10] Asymmetric: trans-bioreduction of activated alkenes by KYE1 from Kluyveromyces leas and Yers-ER from Yersinia bercovierl, two ene-reductases from the Old Yellow Enzyme family, showed a broad substrate spectrum with a mod... Conjugate Addition of Lithium N-Phenyl-N-(alpha-methylbenzyl)amide: Application to the Asymmetric Synthesis of (R)-(-)-Angustureine [作者：BENTLEY SCOTT A; DAVIES STEPHEN G; LEE JAMES A; ROBERTS PAUL M; THOMSON JAMES E,期刊：Organic Letters, 页码：2544-2547 , 文章类型： Article，,卷期：2011年13-10] The conjugate addition of lithium (R)-N-phenyl-N-(alpha-methylbenzyl)amide to a range of alpha,beta-unsaturated 4-methoxyphenyl esters proceeds with excellent levels of diastereoselectivity to give the corresponding beta... Palladium-Catalyzed C-H Perfluoroalkylation of Arenes [作者：LOY REBECCA N; SANFORD MELANIE S,期刊：Organic Letters, 页码：2548-2551 , 文章类型： Article，,卷期：2011年13-10] A new Pd-catalyzed reaction for the coupling between perfluoroalkyl Iodides (RFI) and simple aromatic substrates is described. The perfluoroalkylated arene products are obtained In good to excellent yields in the presenc... Silver Triflate Catalyzed Reaction of 2-Alkynylbenzaldoxime with Aryne [作者：REN HUI; LUO YONG; YE SHENGQING; WU JIE,期刊：Organic Letters, 页码：2552-2555 , 文章类型： Article，,卷期：2011年13-10] A novel and unexpected reaction of 2-alkynylbenzaldoxime with aryne in the presence of silver triflate (10 mol %) under mild conditions is discovered. This reaction proceeds through 6-endo-cyclization, [3 + 2] cycloaddit... Rapid Access to Unusual Solid-State Luminescent Merocyanines by a Novel One-Pot Three-Component Synthesis [作者：MUSCHELKNAUTZ CHRISTIAN; FRANK WALTER; MUELLER THOMAS J J,期刊：Organic Letters, 页码：2556-2559 , 文章类型： Article，,卷期：2011年13-10] A novel consecutive three-component coupling-enamine addition synthesis gives access to three types of diene merocyanines in a selective fashion and in good yields. Moreover, all these push-pull systems are intensely red... Synthesis and Characterization of 2,8-Diazaperylene-1,3,7,9-tetraone, a New Anthracene Diimide Containing Six-Membered Imide Rings [作者：MOHEBBI ALI REZA; MUNOZ CEDRIC; WUDL FRED,期刊：Organic Letters, 页码：2560-2563 , 文章类型： Article，,卷期：2011年13-10] A successful synthesis of novel diimides, namely anthracene amide containing six-membered hide rings, with potential application in organic electronics is reported. The single crystal of 5a exhibits a close interplanar s... Mild Pd-Catalyzed N-Arylation of Methanesulfonamide and Related Nucleophiles: Avoiding Potentially Genotoxic Reagents and Byproducts [作者：ROSEN BRANDON R; RUBLE J CRAIG; BEAUCHAMP THOMAS J; NAVARRO ANTONIO,期刊：Organic Letters, 页码：2564-2567 , 文章类型： Article，,卷期：2011年13-10] A convenient, general, and high yielding Pd-catalyzed cross-coupling of methanesulfonamide with aryl bromides and chlorides Is reported. The use of this method eliminates concern over genotoxic impurities that can arise ... NbCl3-Catalyzed Three-Component [2+2+2] Cycloaddition Reaction of Terminal Alkynes, Internal Alkynes, and Alkenes to 1,3,4,5-Tetrasubstituted 1,3-Cyclohexadienes [作者：SATOH YASUSHI; OBORA YASUSHI,期刊：Organic Letters, 页码：2568-2571 , 文章类型： Article，,卷期：2011年13-10] Three-component [2 + 2 + 2] cycloaddition of terminal alkynes, internal alkynes, and terminal alkenes is achieved using an NbCl3(DME) catalyst, leading to 1,3,4,5-substituted 1,3-cyclohexadienes in excellent yields with ... Genetic Expression of an Amyloid Peptide Fragment and Analysis of Formylated Products [作者：CHENG G; KRASEL C; ZHOU H G; CHAPPELL D; HAMLEY I W,期刊：Organic Letters, 页码：2572-2575 , 文章类型： Article，,卷期：2011年13-10] The model amylold peptide AAKLVFF was expressed as a His-tagged fusion protein with the immunoglobulin-binding domain B1 of streptococcal protein G (GB1), a small (56 residues), stable, single-domain protein. It is shown... One-Pot Metal-Free Syntheses of Acetophenones from Styrenes through Aerobic Photo-oxidation and Deiodination with Iodine [作者：NOBUTA TOMOYA; HIRASHIMA SHINICHI; TADA NORIHIRO; MIURA TSUYOSHI; ITOH AKICHIKA,期刊：Organic Letters, 页码：2576-2579 , 文章类型： Article，,卷期：2011年13-10] A one-pot synthetic protocol of acetophenones from styrenes with molecular oxygen, visible light, and molecular iodine is reported. This procedure involves aerobic photo-oxidation and deiodination in one pot and provides... Iron-Catalyzed Direct Alkenylation of 2-Substituted Azaarenes with N-Sulfonyl Aldimines via C-H Bond Activation [作者：QIAN BO; XIE PAN; XIE YINJUN; HUANG HANMIN,期刊：Organic Letters, 页码：2580-2583 , 文章类型： Article，,卷期：2011年13-10] A novel iron-catalyzed alkenylation of 2-substituted azaarenes through sp(3) C-H bond activation has been developed. A favorable E2-elimination Is proposed as a key step to cleavage of C-H and C-N bonds for the construct... Trifluoroacetic Anhydride-Catalyzed Oxidation of Isonitriles by DMSO: A Rapid, Convenient Synthesis of Isocyanates [作者：LE HOANG V; GANEM BRUCE,期刊：Organic Letters, 页码：2584-2585 , 文章类型： Article，,卷期：2011年13-10] A smooth and efficient oxidation of isonitriles to isocyanates by sulfoxides is catalyzed by trifluoroacetic anhydride. With use of DMSO as the oxidant and 5 mol.% TFAA (dichloromethane, -60 to 0 degrees C), the process ... Phosphine-Catalyzed beta '-Umpolung Addition of Nucleophiles to Activated alpha-Alkyl Allenes [作者：MARTIN TIOGA J; VAKHSHORI VENUS G; TRAN YANG S; KWON OHYUN,期刊：Organic Letters, 页码：2586-2589 , 文章类型： Article，,卷期：2011年13-10] Highly function alized alkenes can be prepared through phosphine-catalyzed beta'-umpolung additions of nucleophiles (carbon-, oxygen-, nitrogen-, and sulfur-centered) to activated alpha-disubstituted allenes, providing m... Facile and Unified Approach to Skeletally Diverse, Privileged Scaffolds [作者：SAHN JAMES J; SU JUSTIN Y; MARTIN STEPHEN F,期刊：Organic Letters, 页码：2590-2593 , 文章类型： Article，,卷期：2011年13-10] A novel strategy has been developed to generate a diverse array of privileged scaffolds from readily available tetrahydropyridine precursors that may be prepared by a multicomponent assembly process followed by a ring-cl...