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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34条记录   A Thermodynamic and Kinetic Study of Hydride Transfer of a Caffeine Derivative [作者：HAN XIAOZHEN; HAO WEIFANG; ZHU XIAOQING; PARKER VERNON D,期刊：Journal of Organic Chemistry, 页码：6520-6529 , 文章类型： Article，,卷期：2012年77-15] One representative type of heterocyclic compound that can release a hydride ion is 7,8-dihydro-9-methylcaffeine (CAFH). The one-electron oxidation potential of CAFH [-0.294 (V vs Fc(+/0))] and the one-electron reduction ... Synthesis of Substituted Coumarins via Bronsted Acid Mediated Condensation of Allenes with Substituted Phenols or Anisoles [作者：KIM SUNDAE; KANG DONGJIN; LEE CHANGHEE; LEE PHIL HO,期刊：Journal of Organic Chemistry, 页码：6530-6537 , 文章类型： Article，,卷期：2012年77-15] Coumarins were obtained from the condensation of electron-rich arenes with allenes in the presence of TfOH in good yield. Depending on the substituent pattern of allenes employed, the general synthetic method of 4-substi... Conformational Analysis of a Model Synthetic Prodiginine [作者：GARCIAVALVERDE MARIA; ALFONSO IGNACIO; QUINONERO DAVID; QUESADA ROBERTO,期刊：Journal of Organic Chemistry, 页码：6538-6544 , 文章类型： Article，,卷期：2012年77-15] A conformational analysis of a synthetic model prodiginine was carried out. In solution this compound showed a strong preference for the beta conformation, in which all the heterocycles are mutually cis. This conformatio... A Triarylamine-Triarylborane Dyad with a Photochromic Dithienylethene Bridge [作者：MENGEL ANDREAS K C; HE BICE; WENGER OLIVER S,期刊：Journal of Organic Chemistry, 页码：6545-6552 , 文章类型： Article，,卷期：2012年77-15] A molecular triad composed of a triarylamine donor, a triarylborane acceptor, and a photoisomerizable dithienylethene bridge has been synthesized and explored by cyclic voltammetry, UV-vis, and luminescence spectroscopy.... Origin of Asymmetric Induction in Bicyclic Guanidine-Catalyzed Thio-Michael Reaction: A Bifunctional Mode of Lewis Acid-Bronsted Acid Activation [作者：CHO BOKUN; TAN CHOONHONG; WONG MING WAH,期刊：Journal of Organic Chemistry, 页码：6553-6562 , 文章类型： Article，,卷期：2012年77-15] In addition to a bifunctional Bronsted acid activation mode, an unconventional bifunctional mode of Lewis and Bronsted acid activations was revealed in a DFT study of bicyclic guanidine-catalyzed thio-Michael reaction. T... Stepwise Diels-Alder: More than Just an Oddity? A Computational Mechanistic Study [作者：LINDER MATS; BRINCK TORE,期刊：Journal of Organic Chemistry, 页码：6563-6573 , 文章类型： Article，,卷期：2012年77-15] We have employed hybrid DFT and SCS-MP2 calculations at the SMD-PCM-6-311++G(2d,2p)//6-31+G(d) level to investigate the relationship between three possible channels for forming a Diels-Alder adduct from a highly nucleoph... Aromatic Cations from Oxidative Carbon-Hydrogen Bond Cleavage in Bimolecular Carbon-Carbon Bond Forming Reactions [作者：CLAUSEN DANE J; FLOREANCIG PAUL E,期刊：Journal of Organic Chemistry, 页码：6574-6582 , 文章类型： Article，,卷期：2012年77-15] Chromenes and isochromenes react quickly with 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) to form persistent aromatic oxocarbenium ions through oxidative carbon-hydrogen cleavage. This process is tolerant of electron... Asymmetric Intramolecular Pauson-Khand Reaction Mediated by a Remote Sulfenyl or Sulfinyl Group [作者：GARCIA RUANO JOSE LUIS; TORRENTE ESTHER; PARRA ALEJANDRO; ALEMAN JOSE; MARTINCASTRO ANA M,期刊：Journal of Organic Chemistry, 页码：6583-6599 , 文章类型： Article，,卷期：2012年77-15] In this work, we report the use of the asymmetric intramolecular Pauson-Khand reactions of 4-aryl-4-cyano-1,6-enynes for obtaining enantiomerically enriched bicyclo[3.3.0]octenones, and the influence of both the quaterna... Direct Asymmetric Allylic Alkenylation of N-Itaconimides with Morita-Baylis-Hillman Carbonates [作者：YANG WENGUO; TAN DAVIN; LI LIXIN; HAN ZHIQIANG; YAN LIN; HUANG KUOWEI; TAN CHOONHONG; JIANG ZHIYONG,期刊：Journal of Organic Chemistry, 页码：6600-6607 , 文章类型： Article，,卷期：2012年77-15] The asymmetric allylic alkenylation of Morita-Baylis-Hillman (MBH) carbonates with N-itaconimides as nucleophiles has been developed using a commercially available Cinchona alkaloid catalyst. A variety of multifunctional... N-Heterocyclic Carbene-Palladium(II)-1-Methylimidazole Complex-Catalyzed Suzuki-Miyaura Coupling of Aryl Sulfonates with Arylboronic Acids [作者：WANG ZHANYONG; CHEN GAOQI; SHAO LIXIONG,期刊：Journal of Organic Chemistry, 页码：6608-6614 , 文章类型： Article，,卷期：2012年77-15] A well-defined NHC-Pd(II)-Im complex 1 was found to be an effective catalyst for the Suzuki-Miyaura coupling of aryl sulfonates including tosylates and phenylsulfonates with arylboronic acids, giving the desired coupling... Dimerization and Anion Binding of a Fluorescent Phospholipid Analogue [作者：JESSEN DANIELLE M; WERCHOLUK ASHLEY N; XIONG BER; SARGENT ANDREW L; ALLEN WILLIAM E,期刊：Journal of Organic Chemistry, 页码：6615-6619 , 文章类型： Article，,卷期：2012年77-15] A diarylacetylene fluorophore featuring spatially separated urea and phosphocholine (PC) groups forms a macrocyclic "head-to-tail" dimer stabilized by NHurea center dot center dot center dot OPPC hydrogen bonds. At conce... A Five-Step Synthesis of (+/-)-Tylophorine via a Nitrile-Stabilized Ammonium Ylide [作者：LAHM GUENTHER; STOYE ALEXANDER; OPATZ TILL,期刊：Journal of Organic Chemistry, 页码：6620-6623 , 文章类型： Article，,卷期：2012年77-15] The Stevens rearrangement of a nitrile-stabilized ammonium ylide is the key step of a very short and practical synthesis of the phenanthroindolizine alkaloid (+/-)-tylophorine. The method requires only five linear steps ... Selective Syntheses of [7]-[12]Cycloparaphenylenes Using Orthogonal Suzuki-Miyaura Cross-Coupling Reactions [作者：DARZI EVAN R; SISTO THOMAS J; JASTI RAMESH,期刊：Journal of Organic Chemistry, 页码：6624-6628 , 文章类型： Article，,卷期：2012年77-15] The divergent, selective syntheses of [7]-[12]cycloparaphenylenes have been accomplished utilizing sequential, orthogonal Suzuki-Miyaura cross-coupling reactions from two late-stage intermediates. Quantum yields decrease... Palladium-Catalyzed Borylation of Primary Alkyl Bromides [作者：JOSHIPANGU AMRUTA; MA XINGHUA; DIANE MOHAMED; IQBAL SIDRA; KRIBS ROBERT J; HUANG RICHARD; WANG CHAOYUAN; BISCOE MARK R,期刊：Journal of Organic Chemistry, 页码：6629-6633 , 文章类型： Article，,卷期：2012年77-15] A mild Pd-catalyzed process for the borylation of alkyl bromides has been developed using bis(pinacolato)diboron as a boron source. This process accommodates the use of a wide range of functional groups on the alkyl brom... Tandem Ring-Opening Decarboxylation of Cyclopropane Hemimalonates with Sodium Azide: A Short Route to gamma-Aminobutyric Acid Esters [作者：EMMETT MICHAEL R; GROVER HUCK K; KERR MICHAEL A,期刊：Journal of Organic Chemistry, 页码：6634-6637 , 文章类型： Article，,卷期：2012年77-15] Cyclopropane hemimalonates, when treated with sodium azide, undergo a tandem ring-opening decarboxylation to produce gamma-azidobutyric acids in good yields. These adducts were hydrogenated to form gamma-aminobutyric aci... Stereochemistry of Substitution of the alpha-Dimethylamino Group by Dialkylzinc in Chiral Benzylferrocene [作者：TAKAHASHI TATSUKI; KONNO TAKASHI; OGATA KENICHI; FUKUZAWA SHINICHI,期刊：Journal of Organic Chemistry, 页码：6638-6642 , 文章类型： Article，,卷期：2012年77-15] The stereochemistry of the substitution of the alpha-dimethylamino group by dimethylzinc in the presence of acetyl chloride in the chiral benzylferrocene backbone was examined. The reaction with the benzylferrocene beari...