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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50条记录   Molecular Genetic Characterization of a Cluster in A. terreus for Biosynthesis of the Meroterpenoid Terretonin [作者：GUO CHUNJUN; KNOX BENJAMIN P; CHIANG YIMING; LO HSIENCHUN; SANCHEZ JAMES F; LEE KUANHAN; OAKLEY BERL R; BRUNO KENNETH S; WANG CLAY C C,期刊：Organic Letters, 页码：5684-5687 , 文章类型： Article，,卷期：2012年14-22] Meroterpenoids are natural products produced from polyketide and terpenoid precursors. A gene targeting system for A. terreus NIH2624 was developed, and a gene cluster for terretonin biosynthesis was characterized. The i... Lycojaponicumins D and E: Two New Alkaloids from Lycopodium japonicum [作者：WANG XIAOJING; LIU YUNBAO; LI LI; YU SHISHAN; LV HAINING; MA SHUANGGANG; BAO XIUQI; ZHANG DAN; QU JING; LI YONG,期刊：Organic Letters, 页码：5688-5691 , 文章类型： Article，,卷期：2012年14-22] Two new alkaloids, lycojaponicumins D (1) and E (2), were isolated from the club moss Lycopodium japonicum. Their structures were elucidated by spectroscopic methods, calculated ECD, CD experiments and X-ray diffraction ... Azobisisobutyronitrile Initiated Aerobic Oxidative Transformation of Amines: Coupling of Primary Amines and Cyanation of Tertiary Amines [作者：LIU LIANGHUI; WANG ZIKUAN; FU XUEFENG; YAN CHUNHUA,期刊：Organic Letters, 页码：5692-5695 , 文章类型： Article，,卷期：2012年14-22] In the presence of a catalytic amount of radical initiator AIBN, primary amines are oxidatively coupled to imines and tertiary amines are cyanated to alpha-aminonitriles. These "metal-free" aerobic oxidative coupling rea... Oligothienyl-BODIPYs: Red and Near-Infrared Emitters [作者：POIREL ARNAUD; DE NICOLA ANTOINETTE; ZIESSEL RAYMOND,期刊：Organic Letters, 页码：5696-5699 , 文章类型： Article，,卷期：2012年14-22] The synthesis of unsymmetrical 3,5-dioligothienyl-BODIPY derivatives and their optical and redox properties are reported. The key step is the monobromination of the 2,6-dimethyl-3,5-dithienyl-BODIPY at the a position of ... Oxetane Ring Enlargement through Nucleophilic Trapping of Radical Cations by Acetonitrile [作者：PEREZRUIZ RAUL; SAEZ JOSE A; DOMINGO LUIS R; CONSUELO JIMENEZ M; MIRANDA MIGUEL A,期刊：Organic Letters, 页码：5700-5703 , 文章类型： Article，,卷期：2012年14-22] Oxidative electron transfer cycloreversion of trans,trans-2-cyclopropyl-4-methyl-3-phenyloxetane, using triphenylthiapyrylium perchlorate as a photosensitizer, leads to distonic 1,4-radical cations; subsequent cleavage g... Investigating the Photochemical Properties of an Arenyl Dienol [作者：PENKETT CLIVE S; WOOLFORD JASON A,期刊：Organic Letters, 页码：5704-5707 , 文章类型： Article，,卷期：2012年14-22] Upon irradiation with UV light, an arenyl dienol was transformed into linear and angular meta photocycloadducts and ortho derived photoadducts. Extended exposure to UV radiation resulted in the formation of other degrada... Exploring the Self-Assembly of Polar Dimeric Capsules Using Molecular Rulers [作者：ESPELT MONICA; BALLESTER PABLO,期刊：Organic Letters, 页码：5708-5711 , 文章类型： Article，,卷期：2012年14-22] A homologous series of N,N,N,N-tetramethylalkyl-N,N-dioxides is used to probe the level of guest induced fit attainable in the assembly of a dimeric capsule based on tetraurea benzyl calix[4]pyrrole components. A sensibl... Why Do Two pi-Electron Four-Membered Huckel Rings Pucker? [作者：MCKEE WILLIAM C; WU JUDY I; HOFMANN MATTHIAS; BERNDT ARMIN; SCHLEYER PAUL VON RAGUE,期刊：Organic Letters, 页码：5712-5715 , 文章类型： Article，,卷期：2012年14-22] Notwithstanding their two (i.e., 4n + 2) pi electrons, four-membered ring systems, 1-4, favor puckered geometries (1a-4a) despite the reduction in vicinal pi overlap and in the ring atom bond angles. This nonplanar prefe... Enantioselective Synthesis of a Hydroxymethyl-cis-1,3-cyclopentenediol Building Block [作者：CRAIG ROBERT A II; ROIZEN JENNIFER L; SMITH RUSSELL C; JONES AMANDA C; STOLTZ BRIAN M,期刊：Organic Letters, 页码：5716-5719 , 文章类型： Article，,卷期：2012年14-22] A brief, enantioselective synthesis of a hydroxymethyl-cis-1,3-cyclopentenediol building block is presented. This scaffold allows access to the cis-1,3-cyclopentanediol fragments found in a variety of biologically active... Total Synthesis, Structure, and Oral Absorption of a Thiazole Cyclic Peptide, Sanguinamide A [作者：NIELSEN DANIEL S; HOANG HUY N; LOHMAN RINKJAN; DINESS FREDERIK; FAIRLIE DAVID P,期刊：Organic Letters, 页码：5720-5723 , 文章类型： Article，,卷期：2012年14-22] The first total synthesis and three-dimensional solution structure are reported for sanguinamide A, a thiazole-containing cyclic peptide from the sea slug H. sanguineus. Solution phase fragment synthesis, solid phase fra... Comparison of Photo-oxidation Reactions in Batch and a New Photosensitizer-Immobilized Microfluidic Device [作者：LUMLEY EMILY K; DYER CHARLOTTE E; PAMME NICOLE; BOYLE ROSS W,期刊：Organic Letters, 页码：5724-5727 , 文章类型： Article，,卷期：2012年14-22] A glass microfluidic device has been functionalized with photoactive porphyrins for performing reactions which are mediated by singlet molecular oxygen. The resulting device was used to Investigate the photochemical oxid... Efficient Synthesis of alpha,beta-Unsaturated Alkylimines Performed with Allyl Cations and Azides: Application to the Synthesis of an Ant Venom Alkaloid [作者：HAYASHI KYOHEI; TANIMOTO HIROKI; ZHANG HUAN; MORIMOTO TSUMORU; NISHIYAMA YASUHIRO; KAKIUCHI KIYOMI,期刊：Organic Letters, 页码：5728-5731 , 文章类型： Article，,卷期：2012年14-22] An efficient synthesis of alpha,beta-unsaturated alkylimines at low temperature using azides has been developed. Carbocations generated from allyl alcohols helped achieve a rapid conversion under mild conditions with azi... Organic Dyes Incorporating Oligothienylenevinylene for Efficient Dye-Sensitized Solar Cells [作者：ALJARILLA ANA; LOPEZARROYO LETICIA; DE LA CRUZ PILAR; OSWALD FREDERIC; MEYER TOBY B; LANGA FERNANDO,期刊：Organic Letters, 页码：5732-5735 , 文章类型： Article，,卷期：2012年14-22] Two new organic dyes incorporating triphenylamine as a donor and oligothienylenevinylene as a bridge have been synthesized. The new dyes cover the entire visible region and have a power conversion of up to 6.25%. alpha-Aryl-Substituted Allenamides in an Imino-Nazarov Cyclization Cascade Catalyzed by Au(I) [作者：MA ZHIXIONG; HE SHUZHONG; SONG WANGZE; HSUNG RICHARD P,期刊：Organic Letters, 页码：5736-5739 , 文章类型： Article，,卷期：2012年14-22] An imino-Nazarov cyclization using alpha-aryl-substituted allenamides is described. This gold(I)-catalyzed cascade is efficient and regioselective in constructing a diverse array of synthetically useful aromatic-ring fus... Synthesis of Monolysyl Advanced Glycation Endproducts and Their Incorporation into Collagen Model Peptides [作者：WOODS TOM M; KAMALOV MEDER; HARRIS PAUL W R; COOPER GARTH J S; BRIMBLE MARGARET,期刊：Organic Letters, 页码：5740-5743 , 文章类型： Article，,卷期：2012年14-22] The synthesis of advanced glycation endproducts (AGEs), CML, CEL, and pyrraline and their incorporation into collagen model peptides is reported. AGEs are modified amino acids that form on proteins such as collagen and a... Phase Tag-Assisted Synthesis of Benzo[b]carbazole End-Capped Oligothiophenes [作者：LEVICK MATTHEW T; COOTE SUSANNAH C; GRACE IAIN; LAMBERT COLIN; TURNER MICHAEL L; PROCTER DAVID J,期刊：Organic Letters, 页码：5744-5747 , 文章类型： Article，,卷期：2012年14-22] The introduction and removal of a phase tag have been used to trigger cyclization events in a new synthesis of benzo[b]carbazoles. The approach has been exploited in a tag-assisted approach to new benzo[b]carbazole end-c...