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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   Intermolecular C-O Addition of Carboxylic Acids to Arynes [作者：DUBROVSKIY ANTON V; LAROCK RICHARD C,期刊：Organic Letters, 页码：3117-3119 , 文章类型： Article，,卷期：2010年12-14] A novel, efficient, and expedient route to biologically and pharmaceutically important o-hydroxyaryl ketones, xanthones, 4-chromanones, and flavones has been developed starting from readily available carboxylic acids and... Enantioselective Syntheses of the Proposed Structures of Cytotoxic Macrolides Iriomoteolide-1a and-1b [作者：GHOSH ARUN K; YUAN HAO,期刊：Organic Letters, 页码：3120-3123 , 文章类型： Article，,卷期：2010年12-14] Enantioselective total syntheses of the proposed structures of macrolide cytotoxic agents iriomoteolide-1a and -1b have been accomplished. The synthesis was carried out in a convergent and stereoselective manner. However... Enantioselective Synthesis of a Diastereomer of Iriomoteolide-1a. What Is the Correct Structure of the Natural Product? [作者：FANG LIJING; YANG JIONG; YANG FEI,期刊：Organic Letters, 页码：3124-3127 , 文章类型： Article，,卷期：2010年12-14] An enantioselective approach to a diastereomer of iriomoteolide-1a is described. Highlighted is a Sml(2)-mediated intramolecular reductive cyclization approach to complex cyclic hemiketals. An acetylide-chloroformate cou... Simple and Efficient Copper-Catalyzed Approach to 2,4-Disubstituted Imidazolones [作者：GONG XIAOYU; YANG HAIJUN; LIU HONGXIA; JIANG YUYANG; ZHAO YUFEN; FU HUA,期刊：Organic Letters, 页码：3128-3131 , 文章类型： Article，,卷期：2010年12-14] Some imidazolone derivatives are biological and pharmaceutical active molecules and the chromophores of the fluorescent proteins. In this communication, a simple and efficient approach to 4-arylidene-2-alkyl-4,5-dihydro-... Highly Enantioselective Construction of Spiro[4H-pyran-3,3 '-oxindoles] Through a Domino Knoevenagel/Michael/Cyclization Sequence Catalyzed by Cupreine [作者：CHEN WENBING; WU ZHIJUN; PEI QINGLAN; CUN LINFENG; ZHANG XIAOMEI; YUAN WEICHENG,期刊：Organic Letters, 页码：3132-3135 , 文章类型： Article，,卷期：2010年12-14] The first enantioselective organocatalytic two- and three-component reactions via a domino Knoevenagel/Michael/cyclization sequence with cupreine as catalyst have been developed. A wide range of optically active spiro[4H... Synthesis of All-L Cyclic Tetrapeptides Using Pseudoprolines as Removable Turn Inducers [作者：FAIRWEATHER KELLY A; SAYYADI NIMA; LUCK IAN J; CLEGG JACK K; JOLLIFFE KATRINA A,期刊：Organic Letters, 页码：3136-3139 , 文章类型： Article，,卷期：2010年12-14] Cyclic tetrapeptides h we generated great interest because of their broad-ranging biological properties. In order to synthesize these highly strained 12-membered cyclic compounds, a cyclization strategy using pseudoproli... Expedient Drug Synthesis and Diversification via ortho-C-H Iodination using Recyclable Pdl(2) as the Precatalyst [作者：MEI TIANSHENG; WANG DONGHUI; YU JINQUAN,期刊：Organic Letters, 页码：3140-3143 , 文章类型： Article，,卷期：2010年12-14] Pd(II)-catalyzed ortho-C H iodination reactions of phenylacetic acid substrates have been achieved using recyclable Pdl(2) as the precatalyst. This class of substrates is incompatible with the classic amide formation/ort... Cytosporolides A-C, Antimicrobial Meroterpenoids with a Unique Peroxylactone Skeleton from Cytospora sp. [作者：LI YAN; NIU SUBIN; SUN BINGDA; LIU SHUCHUN; LIU XINGZHONG; CHE YONGSHENG,期刊：Organic Letters, 页码：3144-3147 , 文章类型： Article，,卷期：2010年12-14] Cytosporolides A-C (1-3), three caryophyllene-derived meroterpenoids with a unique peroxylactone skeleton, were isolated from cultures of the fungus Cytospora sp. Their structures were elucidated by NMR spectroscopy, and... Synthesis of Chiral Cyclobutane Containing C-3-Symmetric Peptide Dendrimers [作者：GUTIERREZABAD RAQUEL; ILLA ONA; ORTUNO ROSA M,期刊：Organic Letters, 页码：3148-3151 , 文章类型： Article，,卷期：2010年12-14] Five new highly functionalized cyclobutane containing C-3-symmetric peptide dendrimers have been synthesized through a convergent approach from 1,3,5-trisubstituted benzene and chiral gamma,epsilon-amino diacid derivativ... Syntheses of trans-SCH-A and cis-SCH-A via a Stereodivergent Cyclopropanation Protocol [作者：CSATAYOVA KRISTINA; DAVIES STEPHEN G; LEE JAMES A; LING KENNETH B; ROBERTS PAUL M; RUSSELL ANGELA J; THOMSON JAMES E,期刊：Organic Letters, 页码：3152-3155 , 文章类型： Article，,卷期：2010年12-14] A highly diastereoselective cyclopropanation protocol has been employed in the syntheses of trans-SCH-A and cis-SCH-A. This strategy encompasses a stereodivergent procedure for the preparation of syn- and anti-cyclopropa... Multiple Hydrogen-Bond-Mediated Molecular Duplexes Based on the Self-Complementary Amidourea Motif [作者：CHU WEIJUN; YANG YONG; CHEN CHUANFENG,期刊：Organic Letters, 页码：3156-3159 , 文章类型： Article，,卷期：2010年12-14] The self-complementary amidourea motif, which was stabilized by four intermolecular tricenter hydrogen bonds, was investigated in solution and in the solid state. Extensive studies on oligomer 2 indicated that the hydrog... A Rhodium IBiox[(-)-menthyl] Complex as a Highly Selective Catalyst for the Asymmetric Hydroarylation of Azabicyles: An Alternative Route to Epibatidine [作者：BEXRUD JASON; LAUTENS MARK,期刊：Organic Letters, 页码：3160-3163 , 文章类型： Article，,卷期：2010年12-14] The synthesis and characterization of a new chiral rhodium N-heterocyclic carbene complex, Rh(IBiox[(-)-menthyl](CO)(2)Cl, is reported. In addition, the very high enantioselectivity exhibited by this complex, as a cataly... Synthesis and Characterization of New Carbazolocarbazoles: Toward pi-Extended N-Fused Heteroacenes [作者：CURIEL DAVID; MASMONTOYA MIRIAM; URUVAKILI ANASUYAMA; ORENES RAUL A; PALLAMREDDY HARANATH; MOLINA PEDRO,期刊：Organic Letters, 页码：3164-3167 , 文章类型： Article，,卷期：2010年12-14] A regiospecific route has been developed for the synthesis of carbazolo[1,2-a]carbazole. The synthetic strategy is based on the use of appropriately tetrasubstituted naphthalene. Optical and electrochemical characterizat... Synthesis of 5-Azaindoles via a Cycloaddition Reaction between Nitriles and Donor-Acceptor Cyclopropanes [作者：MOUSTAFA MAHMOUD M ABD RABO; PAGENKOPF BRIAN L,期刊：Organic Letters, 页码：3168-3171 , 文章类型： Article，,卷期：2010年12-14] A new method for the synthesis of 5-azaindole derivatives is reported. A [3+2] dipolar cycloaddition between nitriles and a 3,4-cyclopropanopiperidirie followed by SeO2 oxidation affords the target compounds in moderate ... Total Synthesis of Jerangolid A [作者：HANESSIAN STEPHEN; FOCKEN THILO; OZA RUPAL,期刊：Organic Letters, 页码：3172-3175 , 文章类型： Article，,卷期：2010年12-14] The first total synthesis of the antifungal polyketide jerangolid A has been accomplished. Starting with the readily available (R)-Roche ester and (S)-glycidol as chirons, the synthesis involved a highly syn-selective Le... Ru-Catalyzed Decarbonylative Addition of Aliphatic Aldehydes to Terminal Alkynes [作者：GUO XIANGYU; WANG JUN; LI CHAOJUN,期刊：Organic Letters, 页码：3176-3178 , 文章类型： Article，,卷期：2010年12-14] A novel method for the formation of isolated C=C bonds was developed via a ruthenium-catalyzed decarbonylative addition of aliphatic aldehydes and alkynes. An unprecedented complete switch of chemoselectivity from aromat...