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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58条记录   Controlled Synthesis of Linear alpha-Cyclodextrin Oligomers Using Copper-Catalyzed Huisgen 1,3-Dipolar Cycloaddition [作者：RAWAL GIRISH K; ZHANG PING; LING CHANGCHUN,期刊：Organic Letters, 页码：3096-3099 , 文章类型： Article，,卷期：2010年12-13] The design and efficient synthesis of a novel class of linear oligomers based on cyclodextrins are described. These supramolecules have relatively rigid structures with well-defined topology and sizes, which could provid... Photooxidation of Mixed Aryl and Biarylphosphines [作者：ZHANG DONG; CELAJE JEFF A; AGUA ALON; DOAN CHAD; STEWART TIMOTHY; BAU ROBERT; SELKE MATTHIAS,期刊：Organic Letters, 页码：3100-3103 , 文章类型： Article，,卷期：2010年12-13] Arylphosphines and dialkylbiarylphosphines react with singlet oxygen to form phosphine oxides and phosphinate esters. For mixed arylphosphines, the most electron-rich aryl group migrates to form the phosphinate, while fo... Visible Light-Mediated Intermolecular C-H Functionalization of Electron-Rich Heterocycles with Malonates [作者：FURST LAURA; MATSUURA BRYAN S; NARAYANAM JAGAN M R; TUCKER JOSEPH W; STEPHENSON COREY R J,期刊：Organic Letters, 页码：3104-3107 , 文章类型： Article，,卷期：2010年12-13] The photoredox-mediated direct intermolecular C-H functionalization of substituted indoles, pyrroles, and furans with diethyl bromomalonate is described, utilizing the visible light-induced reductive quenching pathway of... Synthesis of All-Carbon, Quaternary Center-Containing Cyclohexenones through an Organocatalyzed, Multicomponent Coupling [作者：YANG HUA; CARTER RICH G,期刊：Organic Letters, 页码：3108-3111 , 文章类型： Article，,卷期：2010年12-13] Organocatalyzed multicomponent coupling using a new ester-containing, proline aryl sulfonamide has been developed for accessing densely functionalized cyclohexenones, each containing a quaternary center in high enantio- ... Efficient Total Synthesis of Ammosamide B [作者：REDDY P V NARASIMHA; BANERJEE BIPLAB; CUSHMAN MARK,期刊：Organic Letters, 页码：3112-3114 , 文章类型： Article，,卷期：2010年12-13] A total synthesis of ammosamide B, a metabolite of the marine-derived Streptomyces strain CNR-698, has been executed in nine steps and 6.9% overall yield. The key step involves the condensation of a 4,6-diBoc-protected 1... (S)-2-[(R)-Fluoro(phenyl)methyl]oxirane: A General Reagent for Determining the ee of alpha-Chiral Amines. (vol 7, pg 3829, 2005) [作者：RODRIGUEZESCRICH SERGI; POPA DANA; JIMENO CIRIL; VIDALFERRAN ANTON; PERICAS MIQUEL A,期刊：Organic Letters, 页码：3116-3116 , 文章类型： Correction，,卷期：2010年12-13] Transfer Hydrogenation in Water: Enantioselective, Catalytic Reduction of alpha-Cyano and alpha-Nitro Substituted Acetophenones [作者：SOLTANI OMID; ARIGER MARTIN A; VAZQUEZVILLA HENAR; CARREIRA ERICK M,期刊：Organic Letters, 页码：2893-2895 , 文章类型： Article，,卷期：2010年12-13] Catalytic reduction of a-substituted acetophenones under conditions involving asymmetric transfer hydrogenation in water is described. The reaction is conducted in water and open to air, and formic acid is used as reduct... Highly Diastereo- and Enantioselective Michael Additions of 3-Substituted Oxindoles to Maleimides Catalyzed by Chiral Bifunctional Thiourea-Tertiary Amine [作者：LIAO YUHUA; LIU XIONGLI; WU ZHIJUN; CUN LINFENG; ZHANG XIAOMEI; YUAN WEICHENG,期刊：Organic Letters, 页码：2896-2899 , 文章类型： Article，,卷期：2010年12-13] A highly diastereo- and enantioselective Michael addition reaction with respect to prochiral 3-substituted oxindoles and maleimides by a chiral bifunctional thiourea tertiary amine catalyst was investigated for the first... Selective Addition of Organolithium Reagents to BF2-Chelates of beta-Ketoesters [作者：STEFANE BOGDAN,期刊：Organic Letters, 页码：2900-2903 , 文章类型： Article，,卷期：2010年12-13] A short, mild, and highly chemoselective addition of organolithium reagents to a BF2 complex of 3-oxopropanoates has been developed. The methodology allows straightforward preparation of various 1,3-dioxa-BF2 complexes a... ROMP-Derived Oligomeric Phosphates for Application in Facile Benzylation [作者：LONG TOBY R; MAITY PRADIP K; SAMARAKOON THIWANKA B; HANSON PAUL R,期刊：Organic Letters, 页码：2904-2907 , 文章类型： Article，,卷期：2010年12-13] The development of new ROMP-based oligomeric benzyl phosphates (OBPn) is reported for use as soluble, stable benzylating reagents. These oligomeric reagents are readily synthesized from commercially available materials a... Synthesis of beta- and gamma-Carbolinones via Pd-Catalyzed Direct Dehydrogenative Annulation (DDA) of Indole-carboxamides with Alkynes Using Air as the Oxidant [作者：SHI ZHUANGZHI; CUI YUXIN; JIAO NING,期刊：Organic Letters, 页码：2908-2911 , 文章类型： Article，,卷期：2010年12-13] A palladium-catalyzed direct dehydrogenative annulation (DDA) of indolecarboxamides with internal alkynes via C-H and N-H bond cleavage using air as the oxidant was developed. With this method, both beta- and gamma-carbo... Absolute Configuration Assignment of Inherently Chiral Calix[4]arenes using DFT Calculations of Chiroptical Properties [作者：TALOTTA CARMEN; GAETA CARMINE; TROISI FRANCESCO; MONACO GUGLIELMO; ZANASI RICCARDO; MAZZEO GIUSEPPE; ROSINI CARLO; NERI PLACIDO,期刊：Organic Letters, 页码：2912-2915 , 文章类型： Article，,卷期：2010年12-13] The racemate of an inherently chiral meta-substituted calix[4]arene derivative 3 has been resolved via enantioselective HPLC. Measured optical rotation dispersion and electronic circular dichroism have been compared with... Copper-Catalyzed N-Arylation of Semicarbazones for the Synthesis of Aza-Arylglycine-Containing Aza-Peptides [作者：PROULX CAROLINE; LUBELL WILLIAM D,期刊：Organic Letters, 页码：2916-2919 , 文章类型： Article，,卷期：2010年12-13] Parallel synthesis of 13 aza-arylglycine peptides, based on the hexapeptide sequence of Growth Hormone Releasing Peptide-6 (GHRP-6), was accomplished via selective N-arylation of a semicarbazone peptide building block an... Concise Approach to Pupukeanane Skeleton: Synthetic Study of Chloropupukeananin [作者：SUZUKI TAKAHIRO; KOBAYASHI SUSUMU,期刊：Organic Letters, 页码：2920-2923 , 文章类型： Article，,卷期：2010年12-13] A concise synthesis of a highly functionalized chloropupukeananin (1) skeleton via a reverse electron-demand Diels-Alder reaction and intramolecular carbonyl-ene reaction sequence based on our proposed biosynthetic pathw... Intense One- and Two-Photon Excited Fluorescent Bis(BF2) Core Complex Containing a 1,8-Naphthyridine Derivative [作者：LI HUIFANGJIE; FU WENFU; LI LI; GAN XIN; MU WEIHUA; CHEN WEIQIANG; DUAN XUANMING; SONG HAIBIN,期刊：Organic Letters, 页码：2924-2927 , 文章类型： Article，,卷期：2010年12-13] The first bis(BF2) core complex containing a 1,8-naphthyridin derivative (1,2-bis(5,7-dimethy1-1,8-naphthyridin-2-yl)hydrazine) and with yellow-green emission as well as a high quantum yield was synthesized and structura... Synthesis and Evaluation of Amino-Modified alpha-GalCer Analogues [作者：TRAPPENIERS MATTHIAS; CHOFOR RENE; ASPESLAGH SANDRINE; LI YALI; LINCLAU BRUNO; ZAJONC DIRK M; ELEWAUT DIRK; VAN CALENBERGH SERGE,期刊：Organic Letters, 页码：2928-2931 , 文章类型： Article，,卷期：2010年12-13] alpha-GalCer analogues featuring a phytoceramide 3- and 4-amino group have been synthesized. A Mitsunobu reaction involving phthalimide was employed for the introduction of the amino groups at the 3- and 4-positions of s...