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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99条记录   Indium(III)-Catalyzed Asymmetric Hetero-Diels-Alder Reaction of Brassard-Type Diene with Aliphatic Aldehydes [作者：LIN LILI; KUANG YULONG; LIU XIAOHUA; FENG XIAOMING,期刊：Organic Letters, 页码：3868-3871 , 文章类型： Article，,卷期：2011年13-15] A highly diastereo- and enantioselective hetero-Diels-Alder (HDA) reaction of a Brassard-type diene with aliphatic aldehydes has been developed. The chiral N,N'-dioxide L2/In(OTf)(3) complex was efficient toward the obte... "Supramolecular Circuitry": Three Chemiluminescent, Cucurbit[7]uril-Controlled On/Off Switches [作者：MASSON ERIC; SHAKER YASSER M; MASSON JEANPIERRE; KORDESCH MARTIN E; YUWONO CITRA,期刊：Organic Letters, 页码：3872-3875 , 文章类型： Article，,卷期：2011年13-15] Three Cucurbit[7]uril-controlled chemiluminescent on/off switches based on the lucigenin motif have been synthesized. Light emission Is triggered upon addition of sodium peroxide, interrupted or dimmed in the presence of... Ru-Catalyzed Asymmetric Hydrogenation of 3-Oxoglutaric Acid Derivatives via Solvent-Assisted Pinpoint Recognition of Carbonyls in Close Chemical Propinquity [作者：LI WANFANG; MA XIN; FAN WEIZHENG; TAO XIAOMING; LI XIAOMING; XIE XIAOMIN; ZHANG ZHAOGUO,期刊：Organic Letters, 页码：3876-3879 , 文章类型： Article，,卷期：2011年13-15] Upon comparison of hydrogenation rates of various beta-ketocarboxylic acid derivatives, beta-ketoamides were found to be hydrogenated slightly faster than beta-ketoesters in EtOH in the presence of [RuCl(benzene)(S)-SunP... Novel Quinoxaline-Based Organic Sensitizers for Dye-Sensitized Solar Cells [作者：CHANG DONG WOOK; LEE HYO JOONG; KIM JONG H; PARK SOO YOUNG; PARK SUMOON; DAI LIMING; BAEK JONGBEOM,期刊：Organic Letters, 页码：3880-3883 , 文章类型： Article，,卷期：2011年13-15] Novel quinoxaline-based organic sensitizers using vertical (RC-21) and horizontal (RC-22) conjugation between an electron-donating triphenylamine unit and electron-accepting quinoxaline unit have been synthesized and use... Singlet Oxygen Generation by Novel NIR BODIPY Dyes [作者：AWUAH SAMUEL G; POLREIS JASON; BIRADAR VIDYA; YOU YOUNGJAE,期刊：Organic Letters, 页码：3884-3887 , 文章类型： Article，,卷期：2011年13-15] Five novel near-infrared BODIPY dyes were prepared for improved singlet oxygen generation using thiophene and bromine. Theoretical, optical, photostable, and singlet oxygen generation characteristics of these dyes were a... Flueggines A and B, Two New Dimeric Indolizidine Alkaloids from Flueggea virosa [作者：ZHAO BINGXIN; WANG YING; ZHANG DONGMEI; JIANG RENWANG; WANG GUOCAI; SHI JUNMIN; HUANG XIAOJUN; CHEN WEIMIN; CHE CHUNTAO; YE WENCAI,期刊：Organic Letters, 页码：3888-3891 , 文章类型： Article，,卷期：2011年13-15] Two unprecedented C,C-linked dimeric indolizidine alkaloids, flueggines A (1) and B (2), were isolated from the twigs and leaves of Flueggea virosa. The structures and absolute configurations were elucidated by means of ... In-Water Dehydrative Alkylation of Ammonia and Amines with Alcohols by a Polymeric Bimetallic Catalyst [作者：OHTA HIDETOSHI; YUYAMA YOSHINARI; UOZUMI YASUHIRO; YAMADE YOICHI M A,期刊：Organic Letters, 页码：3892-3895 , 文章类型： Article，,卷期：2011年13-15] An in-water dehydrative alkylation with a novel heteroblmetallic polymeric catalyst Is described. Thus, a boron iridium heteroblmetallic polymeric catalyst was prepared by ionic convolution of a poly(catechol borate) and... Intramolecular Diels-Alder Cycloaddition/Rearrangement Cascade of an Amidofuran Derivative for the Synthesis of (+/-)-Minfiensine [作者：LI GANG; PADWA ALBERT,期刊：Organic Letters, 页码：3767-3769 , 文章类型： Article，,卷期：2011年13-15] An efficient synthesis of (+/-)-minfiensine has been accomplished employing an intramolecular Diels-Alder cycloaddition/rearrangement cascade of an amidofuran derivative. Thermal reorganization of the Initially formed [4... Versatile Method for the Detection of Covalently Bound Substrates on Solid Supports by DART Mass Spectrometry [作者：SANCHEZ LAURA M; CURTIS MATTHEW E; BRACAMONTE BIANCA E; KURITA KENJI L; NAVARRO GABRIEL; SPARKMAN O DAVID; LININGTON ROGER G,期刊：Organic Letters, 页码：3770-3773 , 文章类型： Article，,卷期：2011年13-15] Analysis of substrates directly on solid phase resins without the need for separate cleavage conditions remains an outstanding challenge In the field of solid phase synthesis. We now present the first example of simultan... [3]Rotaxane-Based Dinuclear Palladium Catalysts for Ring-closure Mizoroki-Heck Reaction [作者：SUZAKI YUJI; SHIMADA KYOICHI; CHIHARA ERIKO; SAITO TAKASHI; TSUCHIDO YOSHITAKA; OSAKADA KOHTARO,期刊：Organic Letters, 页码：3774-3777 , 文章类型： Article，,卷期：2011年13-15] [3]Rotaxane containing two Pd centers in the cyclic compounds catalyzes a Mizoroki-Heck reaction of substrates with two iodophenyl groups with bisacrylate. Formation of the cyclic products is enhanced by the rotaxane cat... Regiodivergent Reactions through Catalytic Enantioselective Silylation of Chiral Diols. Synthesis of Sapinofuranone A [作者：RODRIGO JASON M; ZHAO YU; HOVEYDA AMIR H; SNAPPER MARC L,期刊：Organic Letters, 页码：3778-3781 , 文章类型： Article，,卷期：2011年13-15] Through the use of an amino acid based imidazole catalyst, a regiodivergent silylation of chiral diols in cases where there is not a significant steric and electronic difference between the regioisotopic hydroxyl groups ... Efficient Enantioselective Synthesis of 3-Aminochroman Derivatives Through Ruthenium-Synphos Catalyzed Asymmetric Hydrogenation [作者：WU ZI; AYAD TAHAR; RATOVELOMANANAVIDAL VIRGINIE,期刊：Organic Letters, 页码：3782-3785 , 文章类型： Article，,卷期：2011年13-15] A highly enantioselective asymmetric hydrogenation of various trisubstituted enamides derived from chroman-3-ones promoted by cationic Ru-Synphos catalysts is reported. This atom-economical and clean method provides an e... Gold-Catalyzed Deacylative Cycloisomerization Reactions of 3-Acylindole/ynes: A New Approach for Carbazole Synthesis [作者：WANG LU; LI GUIJIE; LIU YUANHONG,期刊：Organic Letters, 页码：3786-3789 , 文章类型： Article，,卷期：2011年13-15] The synthesis of functionalized carbazoles through gold-catalyzed deacylative cycloisomerization of 3-acylindole/ynes is described. A mechanistic proposal for these transformations involving a novel carbonyl group facili... Glycomimetic Building Blocks: A Divergent Synthesis of Epimers of Shikimic Acid [作者：GRIM JOSEPH C; GARBER KATHLEEN C A; KIESSLINE LAURA L,期刊：Organic Letters, 页码：3790-3793 , 文章类型： Article，,卷期：2011年13-15] A divergent synthesis of (-)-4-epi-shikimic acid was developed. This route features a one-pot zinc-mediated reductive ring opening of an arabinofuranose followed by a Barbier reaction and culminates in a ring-closing met... Silylation-Based Kinetic Resolution of Monofunctional Secondary Alcohols [作者：SHEPPARD CODY I; TAYLOR JESSICA L; WISKUR SHERYL L,期刊：Organic Letters, 页码：3794-3797 , 文章类型： Article，,卷期：2011年13-15] The nucleophilic small molecule catalyst (-)-tetramisole was found to catalyze the kinetic resolution of monofunctional secondary alcohols via enantioselective silylation. Optimization of this new methodology allows for ... Interplay of Olefin Metathesis and Multiple Hydrogen Bonding Interactions: Covalently Cross-linked Zippers [作者：ZENG JISEN; WANG WEI; DENG PENGCHI; FENG WEN; ZHOU JINGJING; YANG YUANYOU; YUAN LIHUA; YAMATO KAZUHIRO; GONE BING,期刊：Organic Letters, 页码：3798-3801 , 文章类型： Article，,卷期：2011年13-15] Hydrogen-bonded zippers bearing terminal alkene groups were treated with Grubbs' catalyst, leading to covalently cross-linked zippers without violating H-bonding sequence specificity. The yield of a cross-linked zipper d...