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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61条记录   Catalytic enantioselective addition of diethylzinc to trifluoromethyl ketones. [Erratum to document cited in CA149:307341]. [作者：Yearick, Kimberly;Wolf, Christian;,期刊：Organic Letters, 页码：4391-4391 , 文章类型： 研究论文，,卷期：2008年10-19] discusses the enantioselective synthesis of tertiary alcs. via addn. of diethylzinc to trifluoromethyl ketones in the presence of nitrogen-contg. polydentate ligands. The following ref. citation should be included: "Hig... Aggregation and Columnar Assembly of Crescent Oligoamides. [作者：Zhang, Yunfeng;Yamato, Kazuhiro;Zhong, Kai;Zhu, Jin;Deng, Jingen;Gong, Bing;,期刊：Organic Letters, 页码：4339-4342 , 文章类型： 研究论文，,卷期：2008年10-19] The aggregation and assembly of crescent oligoamides with two to six benzene residues are studied. In chloroform, the pentamer and hexamer assoc. into large aggregates. In the solid state, all oligomers examd. assoc. i... Oct-2-en-4-ynoyl-CoA as a Specific Inhibitor of Acyl-CoA Oxidase. [作者：Zeng, Jia;Wu, Long;Zhang, Xiaojian;Liu, Yuandong;Deng, Guisheng;Li, Ding;,期刊：Organic Letters, 页码：4287-4290 , 文章类型： 研究论文，,卷期：2008年10-19] oxidase in fatty acid oxidn. in peroxisomes that has no inhibitory effect on acyl-Co-A dehydrogenase in mitochondria. The inhibition reaction involves a nucleophilic attack of Glu421 to the d carbon of the inhibitor. Th... Rearrangement of Biaryl Monoaminocarbenes via Concerted Asynchronous Insertion into Aromatic C-H Bonds. [作者：Vignolle, Joan;Asay, Matthew;Miqueu, Karinne;Bourissou, Didier;Bertrand, Guy;,期刊：Organic Letters, 页码：4299-4302 , 文章类型： 研究论文，,卷期：2008年10-19] The biphenyl and binaphthyl diisopropylaminocarbenes were found to be only transient species that spontaneously and quant. rearrange into the corresponding aminofluorenes. DFT calcns. confirm that these insertion reacti... Synthesis of high enantiopurity N-protected a-amino ketones by thiol ester-organostannane cross-coupling using pH-neutral conditions. [作者：Li, Hao;Yang, Hao;Liebeskind, Lanny S.;,期刊：Organic Letters, 页码：4375-4378 , 文章类型： 研究论文，,卷期：2008年10-19] An efficient synthesis of high enantiopurity N-protected a-amino ketones is described. Complementing other studies using boronic acids and thiol esters, this Cu(I) diphenylphosphinate (CuDPP)-mediated, palladium-catalyz... A Concise Entry into Nonsymmetrical Alkyl Polyamines. [作者：Pirali, Tracey;Callipari, Grazia;Ercolano, Emanuela;Genazzani, Armando A.;Giovenzana, Giovanni Battista;Tron, Gian Cesare;,期刊：Organic Letters, 页码：4199-4202 , 文章类型： 研究论文，,卷期：2008年10-19] An innovative synthetic protocol for prepn. of nonsym. polyamines (PAs) from isocyanides, N-acylamino acids, diamines and paraformaldehyde using a modified Ugi reaction (N-split Ugi) which simplifies the synthesis of the... Combination of Perfluoroalkyl and Triazole Moieties: A New Recovery Strategy for TEMPO. [作者：Gheorghe, Alexandru;Chinnusamy, Tamilselvi;Cuevas-Yanez, Erick;Hilgers, Petra;Reiser, Oliver;,期刊：Organic Letters, 页码：4171-4174 , 文章类型： 研究论文，,卷期：2008年10-19] The attachment of multiple triazole moieties and perfluoroalkyl chains to TEMPO promotes emulsion formation in dichloromethane/water, giving a highly active and easily recoverable catalyst for the oxidn. of alcs. Taumycins A and B, Two Bioactive Lipodepsipeptides from the Madagascar Sponge Fascaplysinopsis sp. [作者：Bishara, Ashgan;Rudi, Amira;Aknin, Maurice;Neumann, Drorit;Ben-Califa, Nathalie;Kashman, Yoel;,期刊：Organic Letters, 页码：4307-4309 , 文章类型： 研究论文，,卷期：2008年10-19] Two closely related lipodepsipeptides, taumycins A and B (I and II) have been isolated from the Madagascar sponge Fascaplysinopsis sp. The two compds. have the same 12-membered oxodepsipeptide ring system in common. Bot... Bistellettazines A-C and Bistellettazole A: New Terpenyl-Pyrrolizidine and Terpenyl-Imidazole Alkaloids from a Southern Australian Marine Sponge, Stelletta sp. [作者：El-Naggar, Mohamed;Piggott, Andrew M.;Capon, Robert J.;,期刊：Organic Letters, 页码：4247-4250 , 文章类型： 研究论文，,卷期：2008年10-19] Four new alkaloids have been isolated during chem. investigations into a southern Australian marine sponge, Stelletta sp. Detailed spectroscopic anal., supported by chem. degrdn. and partial synthesis, permitted structu... Exploring Electronically Polarized Pentacenes. [作者：Lehnherr, Dan;McDonald, Robert;Tykwinski, Rik R.;,期刊：Organic Letters, 页码：4163-4166 , 文章类型： 研究论文，,卷期：2008年10-19] Unsym. functionalized pentacenes with electron-rich and/or -poor substituents at the 6- and 13-positions were synthesized. The electronic influence was evaluated by soln.-state UV-vis absorption and emission spectroscop... Conformation as a Protecting Group: A Regioselective Aromatic Bromination En Route to Complex p-Electron Systems. [作者：Guthrie, Daryl A.;Tovar, John D.;,期刊：Organic Letters, 页码：4323-4326 , 文章类型： 研究论文，,卷期：2008年10-19] A new strategy to achieve regioselective functionalization of a sterically congested arom. system driven by conformational demands is described. Electrophilic substitution occurs at the more planarizable subunit without... Two Novel Triterpenoids from Dysoxylum hainanense. [作者：He, Xiu-Feng;Wang, Xiao-Ning;Gan, Li-She;Yin, Sheng;Dong, Lei;Yue, Jian-Min;,期刊：Organic Letters, 页码：4327-4330 , 文章类型： 研究论文，,卷期：2008年10-19] Two novel rearranged oleanane-type triterpenes, dysoxyhainanin A (I) possessing a unique 1,3-cyclo-2,3-seco A ring with a formamido-contg. appendage and dysoxyhainanin B (II) featuring an unprecedented 1,2-dinor-3,10:9,1... Structure of Membrane-Bound Amphidinol 3 in Isotropic Small Bicelles. [作者：Houdai, Toshihiro;Matsumori, Nobuaki;Murata, Michio;,期刊：Organic Letters, 页码：4191-4194 , 文章类型： 研究论文，,卷期：2008年10-19] Amphidinol 3 (AM3) exhibits a potent membrane permeabilizing activity by forming pores in biol. membranes. We examd. the conformation and location of AM3 using isotropic bicelles, a more natural membrane model than mice...