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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57条记录   Stereoselective Multimodal Transformations of Planar Chiral 9-Membered Diallylic Amides [作者：TOMOOKA KATSUHIKO; SUZUKI MASAKI; SHIMADA MAKI; NI RUNYAN; UEHARA KAZUHIRO,期刊：Organic Letters, 页码：4926-4929 , 文章类型： Article，,卷期：2011年13-18] Intermolecular reactions of planar chiral 9-membered diallylic amides provide a variety of bicyclic compounds with central chiralities in a stereospecific fashion with high group selectivity. Lewis-acid-promoted intramol... Arylamine-Based Dyes for p-Type Dye-Sensitized Solar Cells [作者：YEN YUNGSHENG; CHEN WEITING; HSU CHIHYU; CHOU HSIENHSIN; LIN JIANN T; YEH MINGCHANG P,期刊：Organic Letters, 页码：4930-4933 , 文章类型： Article，,卷期：2011年13-18] New arylamine-based sensitizers for p-type dye-sensitized solar cells (DSSCs) have been synthesized and used for p-type DSSCs. The best conversion efficiency reaches similar to 0.1%. Sensitizers with two anchoring carbox... Iododesilylation of TIPS-, TBDPS-, and TBS-Substituted Alkenes in Connection with the Synthesis of Amphidinolides B/D [作者：SIDERA MIREIA; COSTA ANNA M; VILARRASA JAUME,期刊：Organic Letters, 页码：4934-4937 , 文章类型： Article，,卷期：2011年13-18] The C-Si bonds of triisopropylsilyl-substituted alkenes, 1,3-dienes, and related multifunctional substrates, as well as analogous C-TBDPS and C-TBS bonds, are readily and chemoselectively cleaved with NIS (or other sourc... Asymmetric Vinylogous Mannich Reactions: A Versatile Approach to Functionalized Heterocycles [作者：RUAN SHUTANG; LUO JIEMIN; DU YU; HUANG PEIQIANG,期刊：Organic Letters, 页码：4938-4941 , 文章类型： Article，,卷期：2011年13-18] Asymmetric vinylogous Mannich reaction (VMR) of 2-(tert-butyldimethylsilyloxy)furan (TBSOF, 1) with (R(S))- or (S(S))-t-BS-imines (3) furnished 5-aminoalkylbutenolides 7a-k in 75-87% yields with anti/syn ratios ranging f... Highly Enantioselective Intermolecular Stetter Reactions of beta-Aryl Acceptors: alpha-Ketoester Moiety as Handle for Activation and Synthetic Manipulations [作者：SANCHEZLARIOS EDUARDO; THAI KAREN; BILODEAU FRANCOIS; GRAVEL MICHEL,期刊：Organic Letters, 页码：4942-4945 , 文章类型： Article，,卷期：2011年13-18] The use of beta,gamma-unsaturated-alpha-ketoesters in the intermolecular Stetter reaction furnishes 1,2,5-tricarbonyl compounds in high yield and excellent enantioselectivity. The alpha,delta-diketoesters generated using... Insertion of Arynes into Thioureas: A New Amidine Synthesis [作者：BISWAS KALLOLMAY; GREANEY MICHAEL F,期刊：Organic Letters, 页码：4946-4949 , 文章类型： Article，,卷期：2011年13-18] Arynes, generated from trimethylsilyl phenyltriflate precursors, have been found to react with thioureas via a formal pi-insertion into the C=S bond. The reaction contrasts with that of ureas, which proceeds via benzyne ... Iron(III)-Promoted Oxidative Coupling of Naphthylamines: Synthetic and Mechanistic Investigations [作者：LI XINLE; HUANG JINHUA; YANG LIANMING,期刊：Organic Letters, 页码：4950-4953 , 文章类型： Article，,卷期：2011年13-18] A facile route to the synthesis of 1,1'-binaphthyl-4,4'-diamines (naphthidines) and 1,1'-binaphthyl-2,2'-diamines (BINAMs) was developed by the oxidative homocoupling of 1- and 2-naphthylamines, respectively, using FeCl(... Kinetic Resolution of Hindered Morita-Baylis-Hillman Adducts by Rh(I)-Catalyzed Asymmetric 1,4-Addition/beta-Hydroxyelimination [作者：WANG YAZHOU; FENG XIANGQING; DU HAIFENG,期刊：Organic Letters, 页码：4954-4957 , 文章类型： Article，,卷期：2011年13-18] A kinetic resolution of hindered Morita-Baylis-Hillman adducts has been successfully achieved in excellent selectivities via Rh(1)-catalyzed asymmetric 1,4-addition/beta-hydroxyelimination with the use of a chiral sulfin... Enantioselective Conjugate Addition of Alkenylboronic Acids to Indole-Appended Enones [作者：LUNDY BRIAN J; JANSONEPOPOVA SANTA; MAY JEREMY A,期刊：Organic Letters, 页码：4958-4961 , 文章类型： Article，,卷期：2011年13-18] An enantioselective addition of alkenylboronic acids and alkynylboronic esters to unprotected indole-appended enones is reported. This transformation proceeds with high enantioselectivity and high product yields via the ... New A-A-D-A-A-Type Electron Donors for Small Molecule Organic Solar Cells [作者：LIN LIYEN; LU CHIHWEI; HUANG WEICHING; CHEN YIHONG; LIN HAOWU; WONG KENTSUNG,期刊：Organic Letters, 页码：4962-4965 , 文章类型： Article，,卷期：2011年13-18] Two A-A-D-A-A-type molecules (BCNDTS and BDCDTS), where two terminal electron-withdrawing cyano or dicyanovinylene moieties are connected to a central dithienosilole core through another electron-accepting 2,1,3-benzothi... Highly Stereoselective Synthesis of 1,2,3-Trisubstituted Indanes via Oxidative N-Heterocyclic Carbene-Catalyzed Cascades [作者：BISWAS ANUP; DE SARKAR SUMAN; FROEHLICH ROLAND; STUDER ARMIDO,期刊：Organic Letters, 页码：4966-4969 , 文章类型： Article，,卷期：2011年13-18] Three stereocenters are formed in the carbene catalyzed cascade reaction of enals with various beta-diketones to give the corresponding indane derivatives with excellent stereoselectivities. The products are readily tran... Gold(I)-Catalyzed Tandem Cyclization-Selective Migration Reaction of 1,3-Dien-5-ynes: Regioselective Synthesis of Highly Substituted Benzenes [作者：GARCIAGARCIA PATRICIA; MARTINEZ ALBERTO; SANJUAN ANA M; FERNANDEZRODRIGUEZ MANUEL A; SANZ ROBERTO,期刊：Organic Letters, 页码：4970-4973 , 文章类型： Article，,卷期：2011年13-18] Highly substituted benzene derivatives have been easily prepared in a regioselective way from readily available 1,3-hexadien-5-ynes through a gold(I)-catalyzed tandem reaction. The process involves an initial cyclization... An Improved Palladium-Catalyzed Conversion of Aryl and Vinyl Triflates to Bromides and Chlorides [作者：PAN JUN; WANG XINYAN; ZHANG YONG; BUCHWALD STEPHEN L,期刊：Organic Letters, 页码：4974-4976 , 文章类型： Article，,卷期：2011年13-18] A facile Pd-catalyzed conversion of aryl and vinyl triflates to aryl and vinyl halides (bromides and chlorides) is described. This method allows convenient access to a variety of aryl, heteroaryl, and vinyl halides in go... Kinetic Resolution of beta-Lactams via Enantioselective N-Acylation [作者：YANG XING; BUMBU VALENTINA D; BIRMAN VLADIMIR B,期刊：Organic Letters, 页码：4755-4757 , 文章类型： Article，,卷期：2011年13-18] Enantioselective N-acylation of 4-aryl-beta-lactams in the presence of acyl transfer catalyst CI-PIQ provides an effective method for their nonenzymatic kinetic resolution. Intramolecular Hydroamination of Aminoalkenes Catalyzed by a Cationic Zirconium Complex [作者：WANG XINKE; CHEN ZHOU; SUN XIULI; TANG YONG; XIE ZUOWEI,期刊：Organic Letters, 页码：4758-4761 , 文章类型： Article，,卷期：2011年13-18] A new cationic [N(-)O(-)S]zirconium complex (cat.) was developed to be an excellent catalyst for the intramolecular hydroamination of aminoalkenes with a large substrate scope from terminal alkenes to internal alkenes, a... Construction of Carbocyclic Ring of Indoles Using Ruthenium-Catalyzed Ring-Closing Olefin Metathesis [作者：YOSHIDA KAZUHIRO; HAYASHI KAZUSHI; YANAGISAWA AKIRA,期刊：Organic Letters, 页码：4762-4765 , 文章类型： Article，,卷期：2011年13-18] The selective synthesis of substituted indoles was achieved by the ring-closing olefin metathesis (RCM)/elimination sequence or the RCM/tautomerization sequence of functionalized pyrrole precursors. The RCM/elimination s...