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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55条记录   Concise, Convergent Syntheses of (+/-)-Trichostatin A Utilizing a Pd-Catalyzed Ketone Enolate alpha-Alkenylation Reaction [作者：COSNER CASEY C; HELQUIST PAUL,期刊：Organic Letters, 页码：3564-3567 , 文章类型： Article，,卷期：2011年13-14] Two concise, convergent syntheses of (+/-)-trichostatin A (1), a potent histone deacetylase inhibitor, have been accomplished. The key step in both is a Pd-catalyzed alpha-alkenylation reaction between ketone 2 and eithe... A New Type of Monoterpenoid Indole Alkaloid Precursor from Alstonia rostrata [作者：CAI XIANGHAI; BAO MEIFEN; ZHANG YU; ZENG CHUNXIA; LIU YAPING; LUO XIAODONG,期刊：Organic Letters, 页码：3568-3571 , 文章类型： Article，,卷期：2011年13-14] Currently, all monoterpenoid indole alkaloids (MIAs) have been derived from strictosidine, which originates from the condensation of tryptophan with secologanin in a 1:1 ratio. However, our phytochemical research on Alst... Synthesis of a Novel Class of Cyclodextrin-Based Nanotubes [作者：WANG AIXIA; LI WENLLING; ZHANG PING; LING CHANGCHUN,期刊：Organic Letters, 页码：3572-3575 , 文章类型： Article，,卷期：2011年13-14] The synthesis and characterization of a novel class of structurally well-defined nanotubes from beta-cyclodextrin are described. These new hosts were formed using disulfide linkages that substitute all the primary hydrox... New Synthetic Methodology for the Construction of 7-Substituted Farnesyl Diphosphate Analogs [作者：PLACZEK ANDREW T; GIBBS RICHARD A,期刊：Organic Letters, 页码：3576-3579 , 文章类型： Article，,卷期：2011年13-14] Through the use of a 1,2-metalate rearrangement, six 7-substituted farnesol analogs were generated in a concise manner. This new synthetic route allowed us to quickly prepare several diverse farnesyl diphosphate analogs ... Controlling the Facial Selectivity of Asymmetric [4+2] Cyclo-additions: A Concise Synthesis of the cis-Decalin Core Structure of Superstolides A and B [作者：CHEN LEI; HUA ZHENGMAO; LI GANGQIN; JIN ZHENDONG,期刊：Organic Letters, 页码：3580-3583 , 文章类型： Article，,卷期：2011年13-14] Reglo-, stereo-, and facial selective [4 + 2] cycloadditions between highly activated vinyl sulfones and 1,3-dienes derived from (R)-4-tert-wbutyldimethylsilyloxy-2-cyclohexen-1-one provide a powerful approach for the as... Homologous Mukaiyama Reactions via Trapping of the Nazarov Intermediate with Silyloxyalkenes [作者：WU YENKU; MCDONALD ROBERT; WEST F G,期刊：Organic Letters, 页码：3584-3587 , 文章类型： Article，,卷期：2011年13-14] Treatment of 1,4-pentadien-3-ones and silyloxyalkenes with BF(3)center dot OEt(2) at room temperature or lower initiates a domino process consisting of sequential 4 pi electrocyclization and capture of the resulting cycl... Fluorescent 3-Methylene-2,3-Dihydrochalcogenophenes Incorporated in a Rigid Dibenzobarrelene Skeleton [作者：ISHII AKIHIKO; YAMAGUCHI YUKI; NAKATA NORIO,期刊：Organic Letters, 页码：3702-3705 , 文章类型： Article，,卷期：2011年13-14] The fluorescent 3-methylene-2,3-dihydroselenophene derivative (Phi(F) = 0.86 in CH(2)Cl(2)) incorporated in a dibenzobarrelene skeleton was synthesized by the reaction of a four-membered selenaplatinacycle with dimethyl ... Shorter and Modular Synthesis of Hemicryptophane-tren Derivatives [作者：CHATELET BASTIEN; PAYET ELINA; PERRAUD OLIVIER; DIMITROVRAYTCHEV PASCAL; CHAPELLET LAURELISE; DUFAUD VERONIQUE; MARTINEZ ALEXANDRE; DUTASTA JEANPIERRE,期刊：Organic Letters, 页码：3706-3709 , 文章类型： Article，,卷期：2011年13-14] Hemicryptophanes are host molecules with many applications as supramolecular catalysts or in ion selective recognition. A very convenient and efficient modular approach for the synthesis of hemicryptophane-tren (tren, tr... An Efficient Synthesis of the Protected Carbohydrate Moiety of Brasilicardin A [作者：JUNG MICHAEL E; KOCH PIERRE,期刊：Organic Letters, 页码：3710-3713 , 文章类型： Article，,卷期：2011年13-14] A synthesis of the protected carbohydrate moiety 2 of Brasilicardin A starting from L-rhamnose and D-glucosamine is described. The disaccharide was synthesized using a TMSOTf-mediated glycosylation of the 2-phthalimido-2... Low Molecular Weight Fluorescent Organogel for Fluoride Ion Detection [作者：RAJAMALLI P; PRASAD EDAMANA,期刊：Organic Letters, 页码：3714-3717 , 文章类型： Article，,卷期：2011年13-14] The design, synthesis, and the photophyslcal properties of a Low Molecular Weight Gel (LMWG) based on AB(3) and AB(2) type poly(aryl ether) dendrons with an anthracene chromophore attached through an acylhydrazone linkag... An Easy Entry into 2-Halo-3-aryl-4(3H)-quinazoliniminium Halides from Heteroenyne-allenes [作者：NAGANABOINA VIJAYA KUMAR; CHANDRA KUSUM LATA; DESPER JOHN; RAYAT SUNDEEP,期刊：Organic Letters, 页码：3718-3721 , 文章类型： Article，,卷期：2011年13-14] An efficient three-step synthesis of 2-halo-3-aryl-4(3H)-quinazoliniminium halides from commercially available materials is described. Upon reaction with hydrogen halides, generated in situ from a Lewis acid (MX) and tra... Organocatalytic Tail-to-Tail Dimerization of Olefin: Umpolung of Methyl Methacrylate Mediated by N-Heterocyclic Carbene [作者：MATSUOKA SHINICHI; OTA YOSHIYA; WASHIO ATSUSHI; KATADA AKIHO; ICHIOKA KENJI; TAKAGI KOJI; SUZUKI MASATO,期刊：Organic Letters, 页码：3722-3725 , 文章类型： Article，,卷期：2011年13-14] Highly selective tail-to-tall dimerization of methyl methacrylate has been realized by an N-heterocyclic carbene catalyst, giving dimethyl 2,5-dimethyl-2-hexenedioate with an E/Z ratio of 95:5 in 86% isolated yield. The ... The Missing C-17 O-Methyltransferase in Geldanamycin Biosynthesis [作者：YIN MIN; LU TAO; ZHAO LIXING; CHEN YIHUA; HUANG SHENGXIONG; LOHMAN JEREMY R; XU LIHUA; JIANG CHENGLIN; SHEN BEN,期刊：Organic Letters, 页码：3726-3729 , 文章类型： Article，,卷期：2011年13-14] The biosynthetic gene clusters for the Hsp90 Inhibitor geldanamycin (GDM, 1) have been cloned previously from three different Streptomyces strains, but the gene encoding the C-17 O-methyltransferase remains unknown. The ... Rational Design of a Highly Reactive Ratiometric Fluorescent Probe for Cyanide [作者：YUAN LIN; LIN WEIYING; YANG YUETING; SONG JIZENG; WANG JIAOLIANG,期刊：Organic Letters, 页码：3730-3733 , 文章类型： Article，,卷期：2011年13-14] A novel highly reactive ratiometric fluorescent cyanide probe was judiciously designed based on 2-formylacrylonitrile moiety as a new cyanide reaction site. A DFT study was conducted to rationalize the extremely high rea... Stereospecific Synthesis of syn-alpha-Oximinoamides by a Three-Component Reaction of Isocyanides, syn-Chlorooximes, and Carboxylic Acids [作者：PIRALI TRACEY; MOSSETTI RICCARDO; GALLI SIMONE; TRON GIAN CESARE,期刊：Organic Letters, 页码：3734-3737 , 文章类型： Article，,卷期：2011年13-14] A stereospecific multicomponent reaction among isocyanides, syn-chlorooximes, and carboxylic acids provides an efficient synthesis of biologically relevant syn-alpha-oximinoamides. Pd-Catalyzed Intramolecular Oxidative C-H Amination: Synthesis of Carbazoles [作者：YOUN SO WON; BIHN JOON HYUNG; KIM BYUNG SEOK,期刊：Organic Letters, 页码：3738-3741 , 文章类型： Article，,卷期：2011年13-14] A Pd-catalyzed oxidative C-H amination of N-Ts-2-arylanilines under ambient temperature using Ozone as an inexpensive, safe, and easy-to-handle oxidant has been developed. This process represents a green and practical me...