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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72条记录   Effect of the "Supersilyl" Group on the Reactivities of Allylsilanes and Silyl Enol Ethers [作者：LAUB HANS A; YAMAMOTO HISASHI; MAYR HERBERT,期刊：Organic Letters, 页码：5206-5209 , 文章类型： Article，,卷期：2010年12-22] Kinetics of the reactions of allylsilanes (1) and silyl enol ethers (2) with benzhydrylium ions (3) were studied by UV-vis spectroscopy in dichloromethane at 20 degrees C. The less than three times higher reaction rates ... Synthesis of the Enantiomer of the Structure Assigned to the Natural Product Nobilisitine A [作者：SCHWARTZ BRETT D; JONES MATTHEW T; BANWELL MARTIN G; CADE IAN A,期刊：Organic Letters, 页码：5210-5213 , 文章类型： Article，,卷期：2010年12-22] The synthesis of the enantiomer of the structure, 1, assigned to the natural product nobilisitine A has been accomplished using the enantiomerically pure cis-1,2-dihydrocatechol 4 as starting material. The H-1 and C-13 N... Copper-Catalyzed Cross Dehydrogenative Coupling Reactions of Tertiary Amines with Ketones or Indoles [作者：YANG FEI; LI JIAN; XIE JIN; HUANG ZHIZHEN,期刊：Organic Letters, 页码：5214-5217 , 文章类型： Article，,卷期：2010年12-22] A novel cross dehydrogenative coupling (CDC) reaction of N,N-dimethylanilines with methyl ketones by cooperative copper and aminocatalysis has been developed, which leads to the formation of beta-arylamino ketones in 42-... Enantioselective Michael Reaction of alpha-Alkyl-beta-keto Esters and Enones under Multifunctional Catalysis [作者：YANG JUANJUAN; LI WENJUN; JIN ZHICHAO; LIANG XINMIAO; YE JINXING,期刊：Organic Letters, 页码：5218-5221 , 文章类型： Article，,卷期：2010年12-22] An efficient approach for the enantioselective Michael additions of beta-alkyl-beta-keto esters to beta-substituted alpha,beta-unsaturated ketones has been developed. The Michael products could be obtained in good to exc... Room-Temperature Metal-Free Electrophilic 5-endo-Selective lodocarbocyclization of 1,5-Enynes [作者：PRADAL ALEXANDRE; NASR ALEXANDRE; TOULLEC PATRICK Y; MICHELET VERONIQUE,期刊：Organic Letters, 页码：5222-5225 , 文章类型： Article，,卷期：2010年12-22] A highly efficient NIS-promoted iodocarbocyclization reaction of various functionalized 1,5-enynes is described via a 5-endo diastereoselective process. The cyclizations are conducted in the presence of 1.2 equiv of N-io... Synthesis of a Functionalized 7,6-Bicyclic Spiroimine Ring Fragment of the Spirolides [作者：GUERET STEPHANIE M; FURKERT DANIEL P; BRIMBLE MARGARET A,期刊：Organic Letters, 页码：5226-5229 , 文章类型： Article，,卷期：2010年12-22] The asymmetric synthesis of a functionalized 7,6-spiroimine related to the spirolides is described. Intermolecular Diels-Alder cycloaddition of a chiral trisubstituted dienophile and Danishefsky's diene enabled simultane... Expanding Stereochemical and Skeletal Diversity Using Petasis Reactions and 1,3-Dipolar Cycloadditions [作者：MUNCIPINTO GIOVANNI; KAYA TANER; WILSON J ANTHONY; KUMAGAI NAOYA; CLEMONS PAUL A; SCHREIBER STUART L,期刊：Organic Letters, 页码：5230-5233 , 文章类型： Article，,卷期：2010年12-22] A short and modular synthetic pathway using intramolecular 1,3-dipolar cycloaddition reactions and yielding functionalized isoxazoles, isoxazolines, and isoxazolidines is described. The change in shape of previous compou... Development of a Strategy for the Asymmetric Synthesis of Polycyclic Polyprenylated Acylphloroglucinols via N-Amino Cyclic Carbamate Hydrazones: Application to the Total Synthesis of (+)-Clusianone [作者：GARNSEY MICHELLE R; LIM DANIEL; YOST JULIANNE M; COLTART DON M,期刊：Organic Letters, 页码：5234-5237 , 文章类型： Article，,卷期：2010年12-22] A broadly applicable asymmetric synthetic strategy utilizing N-amino cyclic carbamate alkylation that provides access to the various stereochemical permutations of a common structural motif found in many polycyclic polyp... Bis(2-sulfanylethyl)amino Native Peptide Ligation [作者：OLLIVIER NATHALIE; DHEUR JULIEN; MHIDIA REDA; BLANPAIN ANNICK; MELNYK OLEG,期刊：Organic Letters, 页码：5238-5241 , 文章类型： Article，,卷期：2010年12-22] The reaction of a peptide featuring a bis(2-sulfanylethyl)amino (SEA) group on its C-terminus with a cysteinyl peptide in water at pH 7 and 37 C leads to the chemoselective and regioselective formation of a native peptid... Synthesis, Characterization, and Catalytic Reactivity of a Highly Basic Macrotricyclic Aminopyridine [作者：UCHIDA NATSUKO; TAKETOSHI AYAKO; KUWABARA JUNPEI; YAMAMOTO TOSHIHIDE; INOUE YOSHIAKI; WATANABE YU; KANBARA TAKAKI,期刊：Organic Letters, 页码：5242-5245 , 文章类型： Article，,卷期：2010年12-22] The synthesis methods, physicochemical and structural characteristics, and catalytic reactivity of new macrocyclic proton chelators, N,N ',N ''-tris(p-tolyl)azacalix[3](2,6)(4-pyrrolidinopyridine) and N,N ',N ''-tris(p-t... Highly Diastereo- and Enantioselective Organocatalytic Michael Addition of alpha-Ketoamides to Nitroalkenes [作者：BASLE OLIVIER; RAIMONDI WILFRIED; DUQUE MARIA DEL MAR SANCHEZ; BONNE DAMIEN; CONSTANTIEUX THIERRY; RODRIGUEZ JEAN,期刊：Organic Letters, 页码：5246-5249 , 文章类型： Article，,卷期：2010年12-22] The first organocatalytic enantio- and diastereoselective conjugate addition of alpha-ketoamides to nitroalkenes has been achieved using a bifunctional amino thiourea catalyst. In this new approach, the substrate amide p... One-Pot Enantioselective Syntheses of Iminosugar Derivatives Using Organocatalytic anti-Michael-anti-Aza-Henry Reactions [作者：IMASHIRO RITSUO; UEHARA HISATOSHI; BARBAS CARLOS F III,期刊：Organic Letters, 页码：5250-5253 , 文章类型： Article，,卷期：2010年12-22] Organocatalyst-controlled asymmetric anti-Michael reactions of (tert-butyldimethylsilyloxy)acetaidehyde with a range of nitroolefins, followed by an intermolecular aza-Henry reaction with imine, provided iminosugar deriv... General and Mild Preparation of 2-Aminopyridines [作者：LONDREGAN ALLYN T; JENNINGS SANDRA; WEI LIUQING,期刊：Organic Letters, 页码：5254-5257 , 文章类型： Article，,卷期：2010年12-22] A general and facile one-pot amination procedure for the synthesis of 2-aminopyridines from the corresponding pyridine-N-oxides is presented as a mild alternative to SNAr chemistry. A variety of amines and heterocyclic-N... (-)-Lytophilippine A: Synthesis of a C1-C18 Building Block [作者：GILLE ANNIKA; HIERSEMANN MARTIN,期刊：Organic Letters, 页码：5258-5261 , 文章类型： Article，,卷期：2010年12-22] The convergent enantioselective synthesis of a protected C1-C18 building block for the total synthesis of (-)-lytophilippine A was achieved. A catalytic asymmetric Gosteli-Claisen rearrangement and an Evans aldol reactio... Adaptable Synthesis of C-Glycosidic Multivalent Carbohydrates and Succinamide-Linked Derivatization [作者：MILLER GAVIN J; GARDINER JOHN M,期刊：Organic Letters, 页码：5262-5265 , 文章类型： Article，,卷期：2010年12-22] A modular approach to the synthesis of trivalent C-glycosidic carbohydrates is described. The approach is illustrated employing carboxylate-terminated C-glycosidic D-mannose, D-glucose, and D-galactose derivatives with d... Single Boryl Isomerization in Silyl-Bridged Photochromic Diboryl Dyes [作者：MURPHY STEPHEN K; BAIK CHUL; LU JIASHENG; WANG SUNING,期刊：Organic Letters, 页码：5266-5269 , 文章类型： Article，,卷期：2010年12-22] Silyl-bridged dimers of a ppy-BMes(2) (ppy = 2-phenylpyridine, Mes = mesityl) photochrome were found to undergo photochromic switching involving a single boryl unit only. A through-space intramolecular energy transfer wa...