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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   Iterative Approach to Oligo(arylenevinylene)s Containing Tetrasubstituted Vinylene Units [作者：ISHIDA NAOKI; SHIMAMOTO YASUHIRO; MURAKAMI MASAHIRO,期刊：Organic Letters, 页码：3179-3181 , 文章类型： Article，,卷期：2010年12-14] Monodispersed oligo(arylenevinylene)s containig tetrasubstituted vinylene units were stereoselectively synthesized in an efficient manner by iteration of two different kinds of palladium-catalyzed reactions. Evidence of Hydrogen Migration in an Alkylphenyldiazirine Excited State [作者：ZHANG YUNLONG; KUBICKI JACEK; PLATZ MATTHEW S,期刊：Organic Letters, 页码：3182-3184 , 文章类型： Article，,卷期：2010年12-14] Ultrafast photolysis (350 nm) of alkylphenyldiazirines promotes the diazirine to the Si excited state. Solvent and substituent effects on the excited state lifetimes indicate that the S-1 state is highly polarized and un... Pd(OAc)(2)-Catalyzed Regioselective Arylation of Indoles with Arylsiloxane in Acidic Medium [作者：LIANG ZUNJUN; YAO BANGBEN; ZHANG YUHONG,期刊：Organic Letters, 页码：3185-3187 , 文章类型： Article，,卷期：2010年12-14] Mild conditions have been developed to achieve a Pd(OAc)(2)-catalyzed cross-coupling between indoles and arylsiloxanes in the presence of TBAF and Ag2O in acidic medium. Electron-deficient arylsiloxanes presented high ef... Synthesis of Anthracene-Stacked Oligomers and Polymer [作者：MORISAKI YASUHIRO; SAWAMURA TOSHIYUKI; MURAKAMI TAKUYA; CHUJO YOSHIKI,期刊：Organic Letters, 页码：3188-3191 , 文章类型： Article，,卷期：2010年12-14] Anthracene-stacked oligomers and a polymer were synthesized using a xanthene skeleton as the scaffold, and their structures and properties were fully characterizud. Intramolecular pi-pi stacking of the anthracene rings i... Exploring the Original Proposed Biosynthesis of (+)-Symbioimine: Remote Exocyclic Stereocontrol in a Type I IMDA Reaction [作者：BURKE JASON P; SABAT MICHEL; IOVAN DIANA A; MYERS WILLIAM H; CHRUMA JASON J,期刊：Organic Letters, 页码：3192-3195 , 文章类型： Article，,卷期：2010年12-14] The originally proposed biosynthesis of (+)-symbioimine was explored, resulting in the successful intramolecular Diels-Alder (IMDA) cyclization of an appropriate (E,E,E)-1,7,9-decatrien-3-one. In contrast to the original... A Pair of Windmill-Shaped Enantiomers from Lindera aggregata with Activity toward Improvement of Insulin Sensitivity [作者：WANG FEI; GAO YUAN; ZHANG LING; BAI BING; HU YA NAN; DONG ZE JUN; ZHAI QI WEI; ZHU HUA JIE; LIU JI KAI,期刊：Organic Letters, 页码：3196-3199 , 文章类型： Article，,卷期：2010年12-14] (+)-Linderaspirone A and (-)-linderaspirone A, a pair of natural windmill-shaped enantiomers, were isolated from the traditional Chinese medicine plant tinders aggregate by HPLC using a chiral column, achieving over 98% ... A Domino Reaction of alpha,beta-Acetylenic gamma-Hydroxy Nitriles with Arenecarboxylic Acids: An Unexpected Facile Shortcut to 4-Cyano-3(2H)-furanones [作者：TROFIMOV BORIS A; SHEMYAKINA OLESYA A; MALKINA ANASTASIYA G; USHAKOV IGOR A; KAZHEVA OLGA N; ALEXANDROV GRIGORII G; DYACHENKO OLEG A,期刊：Organic Letters, 页码：3200-3203 , 文章类型： Article，,卷期：2010年12-14] An unexpected facile domino reaction of alpha,beta-acetylenic gamma-hydroxy nitriles with arenecarboxylic acids (Et3N, MeCN, 20-25 degrees C, 48 h) affords 4-cyano-3(2H)-furanones in 67-86% yield. The reaction is trigger... Perylene Bisimides with Rigid 2,2 '-Biphenol Bridges at Bay Area as Conjugated Chiral Platforms [作者：XIE ZENGQI; WUERTHNER FRANK,期刊：Organic Letters, 页码：3204-3207 , 文章类型： Article，,卷期：2010年12-14] Facile nucleophilic substitution of two chlorine atoms by 2,2'-biphenol at one of the two bay areas (1,12- and 6,7-positions) of core-tetrachlorinated perylene bisimide afforded a novel, completely desymmetrized perylene... Ansellone A, a Sesterterpenoid Isolated from the Nudibranch Cadlina luteromarginata and the Sponge Phorbas sp., Activates the cAMP Signaling Pathway [作者：DAOUST JULIE; FONTANA ANGELO; MERCHANT CATHERINE E; DE VOOGD NICOLE J; PATRICK BRIAN O; KIEFFER TIMOTHY J; ANDERSEN RAYMOND J,期刊：Organic Letters, 页码：3208-3211 , 文章类型： Article，,卷期：2010年12-14] Ansellone A (1) has ben isolated from the dorid nudibranch Cadlina luteomarginata and the sponge Phorbas sp. It has the new "ansellane" sesterterpenoid carbon skeleton, and it activates the cAMP signaling pathway. Azatripyrrolic and Azatetrapyrrolic Macrocycles from the Mannich Reaction of Pyrrole: Receptors for Anions [作者：MANI GANESAN; JANA DEBASISH; KUMAR RAJNISH; GHORAI DEBASISH,期刊：Organic Letters, 页码：3212-3215 , 文章类型： Article，,卷期：2010年12-14] Azatripyrrolic 1 and azatetrapyrrolic 2 macrocycles were synthesized in a single step by the Mannich reaction of pyrrole in the presence of primary amine hydrochloride and were structurally characterized among several ot... Catalytic S(N)2 '-Selective Substitution of Allylic Chlorides With Arylboronic Esters [作者：WHITTAKER AARON M; RUCKER RICHARD P; LALIC GOJKO,期刊：Organic Letters, 页码：3216-3218 , 文章类型： Article，,卷期：2010年12-14] A copper-catalyzed S(N)2'-selective arylation of allylic chlorides has been achieved using arylboronic esters as nucleophiles. Arylation products were obtained in high yield with a variety of allylic chlorides and arylbo... Design and Investigation of a Series of Rhodamine-Based Fluorescent Probes for Optical Measurements of pH [作者：BEST QUINN A; XU RUISONG; MCCARROLL MATTHEW E; WANG LICHANG; DYER DANIEL J,期刊：Organic Letters, 页码：3219-3221 , 文章类型： Article，,卷期：2010年12-14] A series of structurally similar fluorescent probes (1-4), synthesized from rhodamine B, were designed to optically measure pH. Each probe had a unique off-on response as the solution went from basic to acidic. Probes 1-... Skeletal Diversity via Cationic Rearrangements of Substituted Dihydropyrans [作者：MEDEIROS MATTHEW R; NARAYAN RADHA S; MCDOUGAL NOLAN T; SCHAUS SCOTT E; PORCO JOHN A JR,期刊：Organic Letters, 页码：3222-3225 , 文章类型： Article，,卷期：2010年12-14] Substituted dihydropyrans, easily accessed from a commercially available glycal, undergo acid-catalyzed rearrangement to provide highly functionalized isochroman and dioxabicyclooctane scaffolds. Designed Synthesis of Ferrocenylanthraquinones and Their Bifunctional Electrochromic Properties [作者：SHARMOUKH W; KO KYOUNG CHUL; KO JU HONG; JUNG IL GU; NOH CHANGHO; LEE JIN YOUNG; SON SEUNG UK,期刊：Organic Letters, 页码：3226-3229 , 文章类型： Article，,卷期：2010年12-14] New bifunctional electrochromic systems were developed by combination of reductive anthraquinone with oxidative ferrocene redox systems. The resultant ferrocenylanthraquinones demonstrated enhanced stability in electroch... Spiro Oligothiophenes [作者：MIYASAKA MAKOTO; PINK MAREN; RAJCA SUCHADA; RAJCA ANDRZEJ,期刊：Organic Letters, 页码：3230-3233 , 文章类型： Article，,卷期：2010年12-14] Linear oligothiophenes, containing annelated dithieno[2,3-b:3',2'-d]thiophene units, undergo unexpected spirocyclizations upon treatment with trifluoroacetic acid. The resultant spiro oligothiophenes possess novel struct... Facile Approach to Optically Active alpha-Alkylidene-beta-amino Esters by Thermal Overman Rearrangement [作者：LEE SUNG IL; MOON SOON YOUNG; HWANG GEUMSOOK; RYU DO HYUN,期刊：Organic Letters, 页码：3234-3237 , 文章类型： Article，,卷期：2010年12-14] A convenient synthetic method for enantioenriched (E)-alpha-alkylidene-beta-amino esters has been developed through thermal Overman rearrangement. Readily accessible (Z)-beta-branched Morita-Baylis-Hillman esters serve a...