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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31条记录   SYNLETT [作者：GIESE BERND,期刊：SYNLETT, 页码：1481-1481 , 文章类型： Editorial Material，,卷期：2011年-11] Atom-Economical Synthesis of Cyclic Imides [作者：MUTHAIAH SENTHILKUMAR; HONG SOON HYEOK,期刊：SYNLETT, 页码：1481-1485 , 文章类型： Article，,卷期：2011年-11] Cyclic imides were synthesized from simple diols with primary amines in a single step using an in situ generated ruthenium catalytic system. The developed methodology is atom economical and operatively simple for the syn... Artificial Ribozyme-Based Regulators of Gene Expression [作者：SEEMANN ISABELLE T; HARTIG JOERG S,期刊：SYNLETT, 页码：1486-1494 , 文章类型： Article，,卷期：2011年-11] The development of RNA-based switches of gene expression is summarized. Most switches are based on the Schistosoma mansonii hammerhead ribozyme (HHR), a self-cleaving RNA sequence that is inserted into an mRNA. Control o... Synthesis of Highly Substituted Indoles via Diels-Alder/Plieninger Indolization Sequence: Applications in Total Synthesis [作者：SAPETA KATARINA; LEBOLD TERRY P; KERR MICHAEL A,期刊：SYNLETT, 页码：1495-1514 , 文章类型： Article，,卷期：2011年-11] This account describes the development of a Diels-Alder-based methodology towards highly functionalized dihydronaphthalenamines, and their conversion into indoles through a modified Plieninger procedure. Applications tow... Efficient Bronsted Acid Catalyzed Hydrations and Hydroaminations of (Dicyclopropylmethylene)cyclopropane [作者：ACKERMANN LUTZ; KOZHUSHKOV SERGEI I; YUFIT DMITRY S; MAREK ILAN,期刊：SYNLETT, 页码：1515-1518 , 文章类型： Article，,卷期：2011年-11] (Dicyclopropylmethylene)cyclopropane underwent efficient Bronsted acid catalyzed hydrations and hydroaminations with H2O and basic amines, respectively, occurring with conservation of all three cyclopropane rings. Synthesis of 3,4-Bis(benzylidene)cyclobutenes [作者：PARKHURST REBECCA R; SWAGER TIMOTHY M,期刊：SYNLETT, 页码：1519-1522 , 文章类型： Article，,卷期：2011年-11] The syntheses of several derivatives of 3,4-bis(benzylidene)cyclobutene are reported. Previously unknown 1,2-dibromo-3,4-bis(benzylidene)cyclobutene was obtained through in situ generation of 1,6-diphenyl-3,4-dibromo-1,2... 2,6-Disubstituted Tetrahydropyrans by Domino Meyer-Schuster Rearrangement-Hetero-Michael Addition of 6-Alkyne-1,5-diols [作者：WOHLAND MAX; MAIER MARTIN E,期刊：SYNLETT, 页码：1523-1526 , 文章类型： Article，,卷期：2011年-11] Starting from pentanediol various oct-6-yne-1,5-diols were prepared. In the presence of catalytic amounts of an Au(I) or Pt(II) catalyst transformation to cis-2,6-tetrahydropyrans was observed. It is assumed that this no... Development of a Scalable Chiral Synthesis of MK-3281, an Inhibitor of the Hepatitis C Virus NS5B Polymerase [作者：COLARUSSO STEFANIA; CONTE IMMACOLATA; DI FILIPPO MARCELLO; ERCOLANI CATERINA; MACKAY ANGELA C; PALUMBI MARIA CECILIA; FERREIRA MARIA DEL ROSARIO RICO; STANSFIELD IAN; ZARAMELLA SIMONE; NARJES FRANK; HABERMANN JOERG,期刊：SYNLETT, 页码：1527-1532 , 文章类型： Article，,卷期：2011年-11] The development of a scalable chiral synthesis for the HCV NS5B inhibitor MK-3281 is being reported. Several alternative routes were explored and are being described. Weinreb Amide Based Building Blocks for the Synthesis of alpha- and beta-Organylseleno Aryl Ketones [作者：BALASUBRAMANIAN SIVARAMAN; AIDHEN INDRAPAL SINGH,期刊：SYNLETT, 页码：1533-1536 , 文章类型： Article，,卷期：2011年-11] A new strategy for the synthesis of alpha- and beta-organylseleno aryl ketones has been achieved. The strategy is based on the use of hitherto unreported 2,2'-diselenediylbis(N-methoxy-N-methylacetamide) and 3,3'-diselen... Simple and Efficient Method for the Halogenation of Oxygenated Aromatic Compounds [作者：KOINI EFTYCHIA N; AVLONITIS NICOLAOS; CALOGEROPOULOU THEODORA,期刊：SYNLETT, 页码：1537-1542 , 文章类型： Article，,卷期：2011年-11] An efficient and mild method for the chlorination and bromination of oxygenated aromatics, with good regioselectivity and excellent yields, using a combination of HX/H2O2/AcOH in petroleum ether is presented. The effect ... Synthesis of a Novel Octahydro Pyrrolo[3,4-c]pyrrole Cyclic Amidine via 1,3-Dipolar Cycloaddition of Azomethine Ylides [作者：PARADOWSKI MICHAEL; LANE CHARLOTTE A L; PEAKMAN TORREN,期刊：SYNLETT, 页码：1543-1546 , 文章类型： Article，,卷期：2011年-11] A concise synthesis of fused bicyclic pyrrolidines via 1,3-dipolar cycloaddition of azomethine ylides is reported. The exo cycloadduct isomer enables the synthesis of a novel cyclic amidine toward the preparation of a po... An Efficient One-Pot, Three-Component Reaction: Synthesis of Complex-Annelated alpha-Carbolines via an Intramolecular [3+2]-Dipolar Cycloaddition Reaction [作者：MAJUMDER SWARUP; BHUYAN PULAK J,期刊：SYNLETT, 页码：1547-1550 , 文章类型： Article，,卷期：2011年-11] Novel annelated alpha-carbolines have been synthesized from oxindole using three components in a one-pot procedure involving an intramolecular [3+2]-dipolar cycloaddition reaction of azides to nitriles. A New Method to Prepare 3-Alkyl-2-hydroxy-1,4-naphthoquinones: Synthesis of Lapachol and Phthiocol [作者：FERREIRA SABRINA BAPTISTA; DA ROCHA DAVID RODRIGUES; CARNEIRO JOSE WALKIMAR M; SANTOS WILSON COSTA; FERREIRA VITOR FRANCISCO,期刊：SYNLETT, 页码：1551-1554 , 文章类型： Article，,卷期：2011年-11] In this article a mild, simple, safe, and chemoselective synthesis and reduction of o-quinone methides to the corresponding 3-alkyl-2-hydroxy-1,4-naphthoquinones, compounds with interesting biological activity, mediated ... Synthetic Approaches to the Bottom Half Fragment for Bryostatin 11 [作者：NAKAGAWAGOTO KYOKO; CRIMMINS MICHAEL T,期刊：SYNLETT, 页码：1555-1558 , 文章类型： Article，,卷期：2011年-11] An approach towards the stereoselective synthesis of the bottom half fragment of bryostatin 11 is described. Key steps include asymmetric aldol and Saksena-Evans reduction reactions to construct multiple stereogenic cent... Highly Enantioselective Conjugate Addition of 3-Substituted Oxindoles to Vinyl Sulfone Catalyzed by Binaphthyl-Modified Tertiary Amines [作者：LEE HYUN JOO; KANG SEUNG HEE; KIM DAE YOUNG,期刊：SYNLETT, 页码：1559-1562 , 文章类型： Article，,卷期：2011年-11] The enantioselective conjugate addition reaction of 3-substituted oxindoles with 1,1-bis(benzenesulfonyl)ethylene by binaphthyl-modified bifunctional organocatalysts was investigated. The corresponding Michael adducts, c... Hypervalent Iodine(III)-LiX Combination in Fluoroalcohol Solvent for Aromatic Halogenation of Electron-Rich Arenecarboxylic Acids [作者：HAMAMOTO HIROMI; HATTORI SHO; TAKEMARU KAORI; MIKI YASUYOSHI,期刊：SYNLETT, 页码：1563-1566 , 文章类型： Article，,卷期：2011年-11] The novel reagent system, PhI(OAc)(2)-LiX combination in fluoroalcohol solvents, was found to be effective for halodecarboxylation of electron-rich arenecarboxylic acids. The method provided an efficient route to halogen...