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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80条记录   Copper-Catalyzed Arylation of o-Bromoanilides: Highly Flexible Synthesis of Hexahydropyrroloindole Alkaloids [作者：ZHOU YONGYUN; XI YONGKAI; ZHAO JINGFENG; SHENG XIANFU; ZHANG SHUQIN; ZHANG HONGBIN,期刊：Organic Letters, 页码：3116-3119 , 文章类型： Article，,卷期：2012年14-12] In the presence of catalytic amount of copper iodide, a remote amide-assisted intramolecular arylation followed by alkylation leads to a general and flexible synthetic method toward the synthesis of medicinally interesti... Synthesis of 2,5-Disubstituted 6-Azaindoles from Substituted Aziridines via Intramolecular Cyclization [作者：LEE HOGYU; KIM JUN HEE; LEE WON KOO; JUNG JAEHOON; HA HYUNJOON,期刊：Organic Letters, 页码：3120-3122 , 文章类型： Article，,卷期：2012年14-12] A new and efficient preparation of pharmacologically and biologically important 2,5-disubstituted 6-azaindoles was achieved from cyclizations of aziridin-2-yl dipropargylic alcohols as adducts of two propargyl groups to ... Optical Resolution of Aromatic Alcohols Using Silica Nanoparticles Grafted with Helicene [作者：ICHINOSE WATARU; MIYAGAWA MASAMICHI; AN ZENGJIAN; YAMAGUCHI MASAHIKO,期刊：Organic Letters, 页码：3123-3125 , 文章类型： Article，,卷期：2012年14-12] Optically active silica nanoparticles, with a 70-nm diameter, grafted with (P)-1,12-dimethyl-8-methoxycarbonylbenzo[c]phenanthrene-5-carboxyamide were synthesized, and their use in the kinetic resolution of aromatic alco... A Ligand-Free Pd-Catalyzed Cascade Reaction: An Access to the Highly Diverse Isoquinolin-1(2H)-one Derivatives via Isocyanide and Ugi-MCR Synthesized Amide Precursors [作者：TYAGI VIKAS; KHAN SHAHNAWAZ; GIRI ARCHANA; GAUNIYAL HARSH M; SRIDHAR B; CHAUHAN PREM M S,期刊：Organic Letters, 页码：3126-3129 , 文章类型： Article，,卷期：2012年14-12] A novel ligand-free palladium-catalyzed cascade reaction for the synthesis of highly diverse isoquinolin-1(2H)-one derivatives from isocyanide and amide precursors synthesized by Ugi-MCR has been developed. A broad varie... Microwave-Enhanced Solid-Phase Synthesis of N,N '-Linked Aliphatic Oligoureas and Related Hybrids [作者：DOUATCASASSUS CELINE; PULKA KAROLINA; CLAUDON PAUL; GUICHARD GILLES,期刊：Organic Letters, 页码：3130-3133 , 文章类型： Article，,卷期：2012年14-12] A practical and efficient microwave-assisted solid-phase method for the synthesis of N,N'-linked oligoureas and related amide/urea hybrid oligomers, featuring the use of succinimidyl (2-azido-2-substituted ethyl) carbama... A New Approach to 1,4-Oxazines and 1,4-Oxazepines via Base-Promoted Exo Mode Cyclization of Alkynyl Alcohols: Mechanism and DFT Studies [作者：VANDAVASI JAYA KISHORE; HU WANPING; CHEN HSINGYIN; SENADI GOPAL CHANDRU; CHEN CHUNGYU; WANG JEHJENG,期刊：Organic Letters, 页码：3134-3137 , 文章类型： Article，,卷期：2012年14-12] A new approach was developed to synthesize 1,4-oxazine and 1,4-oxazepine derivatives without solvent and metal. Regioselective cyclization occurred to afford exclusively the exo-clig product, and stereochemistry was stud... Suzuki-Miyaura Cross-Coupling Reactions of Potassium Boc-Protected Aminomethyltrifluoroborate with Aryl and Hetaryl Mesylates [作者：MOLANDER GARY A; SHIN INJI,期刊：Organic Letters, 页码：3138-3141 , 文章类型： Article，,卷期：2012年14-12] Palladium-catalyzed Suzuki-Miyaura cross-coupling reactions were studied with potassium Boc-protected aminomethyltrifluoroborate through C-O activation of various mesylate derivatives to afford the corresponding products... Synthesis and Utility of beta-Selenol-Phenylalanine for Native Chemical Ligation-Deselenization Chemistry [作者：MALINS LARA R; PAYNE RICHARD J,期刊：Organic Letters, 页码：3142-3145 , 文章类型： Article，,卷期：2012年14-12] An efficient synthetic route to a suitably protected beta-selenol-phenylalanine derivative from commercially available Garner's aldehyde is described. The incorporation of this building block into peptides and its applic... Three-Component Assembly of Conjugated Enyne Scaffolds via E-Selective Olefination of Ynals [作者：CHENG DONG; LING FEI; LI ZEXIANG; YAO WEIJUN; MA CHENG,期刊：Organic Letters, 页码：3146-3149 , 文章类型： Article，,卷期：2012年14-12] Benefited by the accessible ynamido-lithium intermediates Ib from a Cu-catalyzed azide-alkyne cycloaddition in the presence of stoichiometric amounts of LIOH, a mild and flexible three-component route to conjugated enyne... Design, Synthesis, and Spectroscopic Properties of Extended and Fused Pyrrolo-dC and Pyrrolo-C Analogs [作者：NOE MARY S; RIOS ANDRO C; TOR YITZHAK,期刊：Organic Letters, 页码：3150-3153 , 文章类型： Article，,卷期：2012年14-12] The syntheses of four fluorescent nucleoside analogs, related to pyrrolo-C (PyC) and pyrrolo-dC (PydC) through the conjugation or fusion of a thiophene moiety, are described. A thorough photophysical analysis of the nucl... Rhodium-Catalyzed Asymmetric Formal Cycloadditions of Racemic Butadiene Monoxide with Imines [作者：LIU ZHAOQUN; FENG XIANGQING; DU HAIFENG,期刊：Organic Letters, 页码：3154-3157 , 文章类型： Article，,卷期：2012年14-12] A simple chiral sulfur alkene hybrid ligand has proven to be highly effective for rhodium-catalyzed formal cycloaddition reactions of racemic butadiene monoxide and imines to furnish spirooxindole oxazolidines or 1,3-oxa... Chiral Phosphoric Acid Catalyzed Inverse-Electron-Demand Aza-Diels-Alder Reaction of Isoeugenol Derivatives [作者：HE LONG; BEKKAYE MATHIEU; RETAILLEAU PASCAL; MASSON GERALDINE,期刊：Organic Letters, 页码：3158-3161 , 文章类型： Article，,卷期：2012年14-12] Highly enantio- and diastereoselective three-component inverse electron-demand aza-Diels-Alder reaction of aldehydes, anilines, and isoeugenol derivatives catalyzed by a chiral phosphoric acid catalyst are reported. A wi... Fluorescence Switching of Imidazo[1,5-a]pyridinium Ions: pH-Sensors with Dual Emission Pathways [作者：HUTT JOHNATHON T; JO JUNYONG; OLASZ ANDRES; CHEN CHUNHSING; LEE DONGWHAN; ARON ZACHARY D,期刊：Organic Letters, 页码：3162-3165 , 文章类型： Article，,卷期：2012年14-12] Imidazo[1,5-a]pyridinium ions are identified as highly emissive and water-soluble fluorophores accessed by an efficient three-component coupling reaction. Synthetic modifications of groups conjugated to the polyheterocyc... Synthesis of Chiral Helical 1,3-Oxazines [作者：TALELE HARISH R; SAHOO SIBAPRASAD; BEDEKAR ASHUTOSH V,期刊：Organic Letters, 页码：3166-3169 , 文章类型： Article，,卷期：2012年14-12] A series of novel 1,3-oxazines were prepared to construct a helical framework. The 1,3-oxazine attached to the phenanthrene unit showed a small bite angle theta (similar to 12 degrees), while the units attached to [4]hel... Design, Preparation, X-ray Crystal Structure, and Reactivity of o-Alkoxyphenyliodonium Bis(methoxycarbonyl)methanide, a Highly Soluble Carbene Precursor [作者：ZHU CHENJIE; YOSHIMURA AKIRA; JI LEI; WEI YUNYANG; NEMYKIN VICTOR N; ZHDANKIN VIKTOR V,期刊：Organic Letters, 页码：3170-3173 , 文章类型： Article，,卷期：2012年14-12] The preparation, X-ray structure, and reactivity of new, highly soluble, and reactive iodonium ylides derived from malonate methyl ester and bearing an ortho substituent on the phenyl ring are reported. These new reagent... Acetylphosphonate as a Surrogate of Acetate or Acetamide in Organocatalyzed Enantioselective Aldol Reactions [作者：GUANG JIE; GUO QUNSHENG; ZHAO JOHN CONGGUI,期刊：Organic Letters, 页码：3174-3177 , 文章类型： Article，,卷期：2012年14-12] Highly enantioselective aldol reactions of acetylphosphonates and activated carbonyl compounds was realized with cinchona alkaloid derived catalysts, in which the acetylphosphonate was directly used as an enolate precurs...