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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55条记录   Application of Ruthenium Complexes of Triazole-Containing Tridentate Ligands to Asymmetric Transfer Hydrogenation of Ketones [作者：JOHNSON TARN C; TOTTY WILLIAM G; WILLS MARTIN,期刊：Organic Letters, 页码：5230-5233 , 文章类型： Article，,卷期：2012年14-20] The synthesis of a series of tridentate ligands based on a homochiral 1,2-diamine structure attached to a triazole group and their subsequent applications to the asymmetric transfer hydrogenation of ketones are described... N-Heterocyclic Carbene Dichotomy in Pd-Catalyzed Acylation of Aryl Chlorides via C-H Bond Functionalization [作者：FLORESGASPAR ARELI; GUTIERREZBONET ALVARO; MARTIN RUBEN,期刊：Organic Letters, 页码：5234-5237 , 文章类型： Article，,卷期：2012年14-20] The first Pd-catalyzed intramolecular acylation of aryl chlorides via C-H bond functionalization is presented. The method allows for the synthesis of a variety of elusive benzocyclobutenones with a wide range of function... Racing Carbon Atoms. Atomic Motion Reaction Coordinates and Structural Effects on Newtonian Kinetic Isotope Effects [作者：ANDUJARDE SANCTIS IVONNE L; SINGLETON DANIEL A,期刊：Organic Letters, 页码：5238-5241 , 文章类型： Article，,卷期：2012年14-20] Intramolecular C-13 kinetic isotope effects were determined for the dimerization of methacrolein. Trajectory studies accurately predict the isotope effects and support an origin in Newton's second law of motion, with no ... Pd(II)-Catalyzed Dehydrogenative Olefination of Terminal Arylalkynes with Allylic Ethers: General and Selective Access to Linear (Z)-1,3-Enynes [作者：SHAO YINLIN; ZHANG XIAOHONG; HAN JIANGSHENG; ZHONG PING,期刊：Organic Letters, 页码：5242-5245 , 文章类型： Article，,卷期：2012年14-20] This work demonstrates a green and efficient method to prepare 1,3-enynes via Pd(II)-catalyzed direct dehydrogenative olefination of terminal arylalkynes with unactived allylic ethers. Various terminal arylalkynes can pa... Regioselective Ortho-Arylation and Alkenylation of N-Alkyl Benzamides with Boronic Acids via Ruthenium-Catalyzed C-H Bond Activation: An Easy Route to Fluorenones Synthesis [作者：CHINNAGOLLA RAVI KIRAN; JEGANMOHAN MASILAMANI,期刊：Organic Letters, 页码：5246-5249 , 文章类型： Article，,卷期：2012年14-20] A highly regioselective ruthenium-catalyzed ortho-arylation of substituted N-alkyl benzamides with aromatic boronic acids in the presence of [{RuCl2(p-cymene)}2], AgSbF6, and Ag2O is described. Further, ortho-arylated N-... Multicomponent Approach in the Synthesis of 2,2,6-Trisubstituted Morpholine Derivatives [作者：ZHOU JING; ZHOU LING; YEUNG YINGYEUNG,期刊：Organic Letters, 页码：5250-5253 , 文章类型： Article，,卷期：2012年14-20] An efficient synthesis of 2,2,6-trisubstituted morpholine is described which involves a multicomponent process by simply mixing epichlorohydrin, N-bromosuccinimide, nosyl amide, and an olefin. The products contain chlori... Incorporation of cis- and trans-4,5-Difluoromethanoprolines into Polypeptides [作者：KUBYSHKIN VLADIMIR S; MYKHAILIUK PAVEL K; AFONIN SERGII; ULRICH ANNE S; KOMAROV IGOR V,期刊：Organic Letters, 页码：5254-5257 , 文章类型： Article，,卷期：2012年14-20] Substituted prolines exert diverse effects on the backbone conformation of proteins. Novel difluoro-analogues were obtained by adding difluorocarbene to N-Boc-4,5-dehydroproline methyl ester, which gave the trans-adduct ... One-Pot Oxidation/Isomerization of Z-Allylic Alcohols with Oxygen as Stoichiometric Oxidant [作者：KOENNING DANIEL; HILLER WOLF; CHRISTMANN MATHIAS,期刊：Organic Letters, 页码：5258-5261 , 文章类型： Article，,卷期：2012年14-20] A method for generating (E)-alpha,beta-unsaturated aldehydes from Z-allylic alcohols or E/Z-mixtures is described. The one-pot procedure involves a Cu-catalyzed oxidation followed by an organocatalytic DE-isomerization w... Guadial A and Psiguadials C and D, Three Unusual Meroterpenoids from Psidium guajava [作者：SHAO MENG; WANG YING; JIAN YUQING; HUANG XIAOJUN; ZHANG DONGMEI; TANG QINGFA; JIANG RENWANG; SUN XUEGANG; LV ZHIPING; ZHANG XIAOQI; YE WENCAI,期刊：Organic Letters, 页码：5262-5265 , 文章类型： Article，,卷期：2012年14-20] The first monoterpene-based meroterpenoid (1) and two novel sesquiterpene-based ones (2 and 3) with unprecedented skeletons were isolated from the leaves of Psidium guajava. Their structures with absolute configuration w... Synthesis of Oxindolyl Pyrazolines and 3-Amino Oxindole Building Blocks via a Nitrile Imine [3+2] Cycloaddition Strategy [作者：SINGH ANAND; LOOMER AMANDA L; ROTH GREGORY P,期刊：Organic Letters, 页码：5266-5269 , 文章类型： Article，,卷期：2012年14-20] The [3 + 2] dipolar cycloaddition reaction of nitrite imines with 3-alkylidene oxindoles is described. The pyrazoline spiroadducts were obtained in high yields and with excellent regio- and diastereoselectivities. These ... An Efficient Asymmetric Biomimetic Transamination of alpha-Keto Esters to Chiral alpha-Amino Esters [作者：XIAO XIAO; LIU MAO; RONG CHAO; XUE FAZHEN; LI SONGLEI; XIE YING; SHI YIAN,期刊：Organic Letters, 页码：5270-5273 , 文章类型： Article，,卷期：2012年14-20] An efficient asymmetric biomimetic transamination of alpha-keto esters with quinine derivatives as chiral bases was described. A wide variety of alpha-amino esters containing various functional groups can be synthesized ... Cobalt-Mediated Synthesis of the Tricyclo[5.2.1.0(1,6)]decene Framework in Solanoeclepin A [作者：TSAO KUOWEI; CHENG CHIAYI; ISOBE MINORU,期刊：Organic Letters, 页码：5274-5277 , 文章类型： Article，,卷期：2012年14-20] The stereocontrolled synthesis of the highly strained, tricyclo[5.2.1.0(1,6)]decene skeleton (C) of solanoeclepin A has been achieved through two key transformations: a [2,3]-Wittig rearrangement of allylpropargyl ether ... Synthesis and Properties of Ethylene-Annulated Di(perylene diimides) [作者：LI YAN; WANG CAN; LI CHENG; DI MOTTA SIMONE; NEGRI FABRIZIA; WANG ZHAOHUI,期刊：Organic Letters, 页码：5278-5281 , 文章类型： Article，,卷期：2012年14-20] A new synthetic method toward ethylene-annulated di(perylene diimides) from easily available ethylene-annulated di(perylene esters), which is conducted by ICI-induced cyclization and Mizoroki-Heck coupling of ethynylene-... Improved Nonlinearity-Transparency-Thermal Stability Trade-Off with Spirobifluorene-Bridged Donor-pi-Acceptor Chromophores [作者：XIAO HAIBO; YIN HONGYAO; ZHANG XIAOYING,期刊：Organic Letters, 页码：5282-5285 , 文章类型： Article，,卷期：2012年14-20] A series of novel 9,9'-spirobifluorene-bridged donor-pi-acceptor chromophores containing triarylamine moieties were easily synthesized starting from the readily available reagent 4,4'-dimethylbiphenyl. These chromophores... Heteroleptic Metallosupramolecular Complexes of Bodipy Dyes as Energy Transfer Cassettes [作者：SOZMEN FAZLI; OKSAL BIRSEN S; BOZDEMIR O ALTAN; BUYUKCAKIR ONUR; AKKAYA ENGIN U,期刊：Organic Letters, 页码：5286-5289 , 文章类型： Article，,卷期：2012年14-20] Bodipy dyes with integral phenanthroline and terpyridine units heteroleptically assemble in the presence of zinc(II) ions to form energy transfer cassettes. These discrete complexes exhibit an approach to modularly desig... One-Pot Catalytic Enantioselective Synthesis of Tetrahydropyridines via a Nitro-Mannich/Hydroamination Cascade [作者：BARBER DAVID M; SANGANEE HITESH J; DIXON DARREN J,期刊：Organic Letters, 页码：5290-5293 , 文章类型： Article，,卷期：2012年14-20] The highly enantioselective preparation of synthetically useful tetrahydropyridine derivatives employing a one-pot nitro-Mannich/hydroamination cascade is reported. This approach utilizes an asymmetric organocatalytic ni...