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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46条记录   In Situ Measurement of the Enantiomeric Excess of Alcohols and Amines under Asymmetric Reduction Reaction by H-1 NMR [作者：YE XIAOXIA; LEI XINXIANG; CHEN ZHENFEI; ZHANG LIXUE; ZHANG ANJIANG,期刊：Organic Letters, 页码：3238-3241 , 文章类型： Article，,卷期：2010年12-14] H-1 NMR, in situ, determines the enantiomeric excess of reduced chiral alcohols or amines without adding any auxiliary and workup. The percent ee data determined by this method agree well with those given by HPLC. This a... Two-Component Approach Toward a Fully Substituted N-Fused Pyrrole Ring [作者：CHERNYAK DMITRI; SKONTOS CATHY; GEVORGYAN VLADIMIR,期刊：Organic Letters, 页码：3242-3245 , 文章类型： Article，,卷期：2010年12-14] An efficient two-component palladium-catalyzed arylation/cyclization cascade approach toward a variety of N-fused pyrroloheterocycles has been developed. This transformation proceeds via the palladium-catalyzed coupling ... syn-Selective Catalytic Asymmetric 1,4-Addition of alpha-Ketoanilides to Nitroalkenes under Dinuclear Nickel Catalysis [作者：XU YINGJIE; MATSUNAGA SHIGEKI; SHIBASAKI MASAKATSU,期刊：Organic Letters, 页码：3246-3249 , 文章类型： Article，,卷期：2010年12-14] A syn-selective catalytic asymmetric 1,4-addition of a-ketoanilides to nitroalkenes is described. The homodinuclear Ni-2-Schiff base 1b complex was suitable for the reaction, and products were obtained in 61-92% yield, 8... Cyclic Structural Motifs in 5,6-Dihyclroxyindole Polymerization Uncovered: Biomimetic Modular Buildup of a Unique Five-Membered Macrocycle [作者：ARZILLO MARIANNA; PEZZELLA ALESSANDRO; CRESCENZI ORLANDO; NAPOLITANO ALESSANDRA; LAND EDWARD J; BARONE VINCENZO; DISCHIA MARCO,期刊：Organic Letters, 页码：3250-3253 , 文章类型： Article，,卷期：2010年12-14] An unprecedented 5,6-dihydroxyindole macrocycle (4) featuring a rigid twisted backbone was obtained by biomimetic oxidative cross-coupling of the 2,2'-biindole 2 and triindole 3. A putative reaction intermediate, 2-quino... Cyclic Peptide Synthesis with Thioacids [作者：SASAKI KANAME; CRICH DAVID,期刊：Organic Letters, 页码：3254-3257 , 文章类型： Article，,卷期：2010年12-14] C-Terminal amino acid 9-fluorenylmethylthioesters may be carried through Boc chemistry solution phase peptide synthesis sequences. After insertion of the final residue in the form of an Fmoc carbamate, treatment with pip... A Facile Access to [60]Fullerene-Fused 1,3-Dioxolanes: Reaction of [60]Fullerene with Aldehydes/Ketones Promoted by Ferric Perchlorate [作者：LI FABAO; LIU TONGXIN; YOU XUN; WANG GUANWU,期刊：Organic Letters, 页码：3258-3261 , 文章类型： Article，,卷期：2010年12-14] The facile reaction of [60]fullerene (C-60) with various aldehydes or ketones in the presence of ferric perchlorate successfully afforded the rare C-60-fused 1,3-dioxolanes. A possible reaction mechanism for the formatio... Silver-Catalyzed Difunctionalization of Terminal Alkynes: Highly Regio- and Stereoselective Synthesis of (Z)-beta-Haloenol Acetates [作者：CHEN ZHENGWANG; LI JINGHAO; JIANG HUANFENG; ZHU SHIFA; LI YIBIAO; QI CHAORONG,期刊：Organic Letters, 页码：3262-3265 , 文章类型： Article，,卷期：2010年12-14] A new silver-catalyzed highly regio- and stereoselective difunctionalization reaction of simple terminal alkynes was reported in which the (Z)-beta-haloenol acetate derivatives were formed efficiently. The resulting prod... A New Synthesis of 2,3-Di- or 2,3,3-Trisubstituted 2,3-Dihydro-4-pyridones by Reaction of 3-Ethoxycyclobutanones and N-p-Toluenesulfonyl Imines Using Titanium(IV) Chloride: Synthesis of (+/-)-Bremazocine [作者：MATSUO JUNICHI; OKADO RYOHEI; ISHIBASHI HIROYUKI,期刊：Organic Letters, 页码：3266-3268 , 文章类型： Article，,卷期：2010年12-14] N-p-Toluenesulfonyl (Ts) aldimines reacted with 3-ethoxycyclobutanones by catalysis of titanium(IV) chloride to afford 2,3-di- or 2,3,3-trisubstituted N-Ts-2,3-dihydro-4-pyridones. Synthesis of (+/-)-bremazocine was effi... One-Flask Syntheses of c-di-GMP and the [R-p,R-p] and [R-p,S-p] Thiophosphate Analogues [作者：GAFFNEY BARBARA L; VELIATH ELIZABETH; ZHAO JIANWEI; JONES ROGER A,期刊：Organic Letters, 页码：3269-3271 , 文章类型： Article，,卷期：2010年12-14] An integrated set of reactions and conditions that allow an eight-step one-flask synthesis of the protected derivatives of c-di-GMP and the [R-p,R-p] and [R-p,S-p] thiophosphate analogues is reported. Deprotection is als... Copper-Catalyzed Alkynylation of Amides with Potassium Alkynyltrifluoroborates: A Room-Temperature, Base-Free Synthesis of Ynamides [作者：JOUVIN KEVIN; COUTY FRANCOIS; EVANO GWILHERM,期刊：Organic Letters, 页码：3272-3275 , 文章类型： Article，,卷期：2010年12-14] An efficient copper-mediated method for the coupling of potassium alkynyltrifluoroborates with nitrogen nucleophiles is reported. This reaction provides the first base-free and room-temperature synthesis of ynamides and ... General Access to Chiral N-Alkyl Terminal Aziridines via Organocatalysis [作者：FADEYI OLUGBEMINIYI O; SCHULTE MICHAEL L; LINDSLEY CRAIG W,期刊：Organic Letters, 页码：3276-3278 , 文章类型： Article，,卷期：2010年12-14] A three step, one-pot protocol involving enantioselective a-chlorination of aldehydes, subsequent reductive amination with a primary amine, and SN2 displacement to afford chiral N-alkyl terminal aziridines in 40-65% yiel... 2,3-Disubstituted Indoles via Palladium-Catalyzed Reaction of 2-Alkynyltrifluoroacetanilides with Arenediazonium Tetrafluoroborates [作者：CACCHI SANDRO; FABRIZI GIANCARLO; GOGGIAMANI ANTONELLA; PERBONI ALCIDE; SFERRAZZA ALESSIO; STABILE PAOLO,期刊：Organic Letters, 页码：3279-3281 , 文章类型： Article，,卷期：2010年12-14] A novel palladium-catalyzed synthesis of free N-H 2,3-disubstituted indoles from arenediazonium tetrafluoroborates and 2-alkynyltrifluoroacetanilides is presented. The reaction tolerates a variety of useful substituents ... Total Synthesis of (-)-Aurantioclavine (vol 131, pg 6961, 2009) [作者：BRAK KATRIEN; ELLMAN JONATHAN A,期刊：Organic Letters, 页码：3283-3283 , 文章类型： Correction，,卷期：2010年12-14] Reversible Thiazolidine Exchange: A New Reaction Suitable for Dynamic Combinatorial Chemistry (vol 11, pg 3172, 2009) [作者：SAIZ CECILIA; WIPF PETER; MANTA EDUARDO; MAHLER GRACIELA,期刊：Organic Letters, 页码：3284-3284 , 文章类型： Correction，,卷期：2010年12-14]