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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64条记录   Rh(I)-Catalyzed Reaction of 2-(Chloromethyl)phenylboronic Acids and Alkynes Leading to Indenes. [作者：Miyamoto, Masaki;Harada, Yasuyuki;Tobisu, Mamoru;Chatani, Naoto;,期刊：Organic Letters, 页码：2975-2978 , 文章类型： 研究论文，,卷期：2008年10-14] The reaction of 2-(chloromethyl)phenylboronic acid with alkynes in the presence of a Rh(I) complex gave indene derivs. in high yields. The regioselectivity depends on the steric nature of the substituent on the alkynes.... Rhenium-Catalyzed Synthesis of Multisubstituted Aromatic Compounds via C-C Single-Bond Cleavage. [作者：Kuninobu, Yoichiro;Takata, Hisatsugu;Kawata, Atsushi;Takai, Kazuhiko;,期刊：Organic Letters, 页码：3133-3135 , 文章类型： 研究论文，,卷期：2008年10-14] A reaction between a b-keto ester and an acetylene in the presence of a rhenium complex, [ReBr(CO)3(thf)]2, as a catalyst provided a 2-pyranone deriv. in excellent yield via retro-aldol reaction (C-C single bond cleavage... (Triphenyl phosphite)gold(I)-Catalyzed Intermolecular Hydroamination of Alkenes and 1,3-Dienes. [作者：Giner, Xavier;Najera, Carmen;,期刊：Organic Letters, 页码：2919-2922 , 文章类型： 研究论文，,卷期：2008年10-14] Intermol. addn. of different sulfonamides to alkenes and conjugated dienes can be carried out using a low loading of (tri-Ph phosphite)gold(I) chloride and silver triflate as a catalytic mixt. The reaction can be perfor... Use of Fluoroalkyl as a Latent Group for Internal Alkylation: Application to the Synthesis of Bridged Tetrahydrofluorenones. [作者：Parker, Dann L., Jr.;Fried, Amy K.;Meng, Dongfang;Greenlee, Mark L.;,期刊：Organic Letters, 页码：2983-2985 , 文章类型： 研究论文，,卷期：2008年10-14] Tetrahydrofluorenones which possess a C9a-fluoroalkyl substituent (e.g. I) were efficiently converted to tetrahydrofluorenones which contain a ring bridging C9a-C2 (e.g. II). Conditions include a stepwise sequence of co... Biaryl Synthesis via Decarboxylative Pd-Catalyzed Reactions of Arenecarboxylic Acids and Diaryliodonium Triflates. [作者：Becht, Jean-Michel;Le Drian, Claude;,期刊：Organic Letters, 页码：3161-3164 , 文章类型： 研究论文，,卷期：2008年10-14] A novel simple and efficient synthesis of biaryls via a Pd-catalyzed decarboxylative cross-coupling reaction of arenecarboxylic acids and diaryliodonium triflates is described. The PdCl2/DPEphos catalytic system in the ... Exploiting Quadrupolar Interactions in the Synthesis of the Macrocyclic Portion of Longithorone C. [作者：Zakarian, Joseph E.;El-Azizi, Yassir;Collins, Shawn K.;,期刊：Organic Letters, 页码：2927-2930 , 文章类型： 研究论文，,卷期：2008年10-14] 2,3,4,5,6-Pentafluorobenzyl and 3,5-bistrifluoromethylbenzyl ester auxiliaries can enable difficult macrocyclizations to afford rigid all-carbon paracyclophanes. The effectiveness of these auxiliaries has been demonstra... Palladium-Catalyzed Direct Heck Arylation of Dual p-Deficient/p-Excessive Heteroaromatics. Synthesis of C-5 Arylated Imidazo[1,5-a]pyrazines. [作者：Wang, Jian-Xin;McCubbin, J. Adam;Jin, Meizhong;Laufer, Radoslaw S.;Mao, Yunyu;Crew, Andrew P.;Mulvihill, Mark J.;Snieckus, Victor;,期刊：Organic Letters, 页码：2923-2926 , 文章类型： 研究论文，,卷期：2008年10-14] A general and efficient synthesis of 5-aryl imidazo[1,5-a]pyrazines I (R1 = NH2, NMe2, OMe, 4-MeOC6H4, 4-FC6H4, 4-NO2C6H4, 3-NO2C6H4; R2 = Ph, 4-MeC6H4, 2-FC6H4, etc.) by palladium-catalyzed coupling of the corresponding... Fluorescent conjugated dendrimers with fluorinated terminal groups: Nanofiber formation and electroluminescence properties. [作者：Zhao, Zujin;Li, Juo-Hao;Chen, Xiaopeng;Lu, Ping;Yang, Yang;,期刊：Organic Letters, 页码：3041-3044 , 文章类型： 研究论文，,卷期：2008年10-14] Two conjugated dendrimers with fluorinated terminal groups have been designed and synthesized. Dendrimer with one diheptylfluorene repeat unit exhibits nanofibrous self-assembly ability accompanied by an unusual blue-sh... Highly Enantioselective Synthesis of 2-Furanyl-hydroxyacetates from Furans via the Friedel-Crafts Reaction. [作者：Majer, Jakub;Kwiatkowski, Piotr;Jurczak, Janusz;,期刊：Organic Letters, 页码：2955-2958 , 文章类型： 研究论文，,卷期：2008年10-14] The Friedel-Crafts reaction of alkyl glyoxylates with variously substituted furans was found to be efficiently catalyzed under simple, undemanding conditions by a 6,6'-dibromo-BINOL/Ti(IV) complex with high enantioselect... Synthesis and Characterization of Tetraanthroporphyrins. [作者：Yamada, Hiroko;Kuzuhara, Daiki;Takahashi, Tetsuro;Shimizu, Yusuke;Uota, Keisuke;Okujima, Tetsuo;Uno, Hidemitsu;Ono, Noboru;,期刊：Organic Letters, 页码：2947-2950 , 文章类型： 研究论文，,卷期：2008年10-14] (Biomolecules and Their Synthetic Analogs) Section Linearly p-expanded novel tetraanthroporphyrins with and without arom. rings at the meso-positions, I [R = H, Ph, 3,5-(t-Bu)2-C6H3], were prepd. quant. for the first tim... Manganese-Catalyzed Construction of Tetrasubstituted Benzenes from 1,3-Dicarbonyl Compounds and Terminal Acetylenes. [作者：Kuninobu, Yoichiro;Nishi, Mitsumi;Yudha S., Salprima;Takai, Kazuhiko;,期刊：Organic Letters, 页码：3009-3011 , 文章类型： 研究论文，,卷期：2008年10-14] Treatment of b-keto esters with terminal acetylenes in the presence of a catalytic amt. of a manganese complex, MnBr(CO)5, and mol. sieves gave multisubstituted arom. compds. in good to excellent yields. This reaction e... Copper-Catalyzed "Click" Reaction/Direct Arylation Sequence: Modular Syntheses of 1,2,3-Triazoles. [作者：Ackermann, Lutz;Potukuchi, Harish K.;Landsberg, Dirk;Vicente, Ruben;,期刊：Organic Letters, 页码：3081-3084 , 文章类型： 研究论文，,卷期：2008年10-14] Inexpensive copper catalysts enabled modular one-pot multicomponent syntheses of fully decorated triazoles through a sustainable "click" reaction/direct arylation sequence. N-Amidation by Copper-Mediated Cross-Coupling of Organostannanes or Boronic Acids with O-Acetyl Hydroxamic Acids. [作者：Zhang, Zhihui;Yu, Ying;Liebeskind, Lanny S.;,期刊：Organic Letters, 页码：3005-3008 , 文章类型： 研究论文，,卷期：2008年10-14] A general nonoxidative N-amidation of organostannanes and boronic acids has been developed. Under nonbasic conditions a wide variety of aryl, alkenyl, and heteroaryl organostannanes and boronic acids couple efficiently ... Rh-Catalyzed Intermolecular Cyclopropanation with a-Alkyl-a-diazoesters: Catalyst-Dependent Chemo- and Diastereoselectivity. [作者：Panne, Patricia;DeAngelis, Andrew;Fox, Joseph M.;,期刊：Organic Letters, 页码：2987-2989 , 文章类型： 研究论文，,卷期：2008年10-14] A Rh-catalyzed procedure for the cyclopropanation of alkenes with a-alkyl-a-diazoesters is described. With dirhodium tetraoctanoate, the predominant pathway is b-hydride elimination. While a no. of sterically demanding... Tetrathiophenalenyl Radical and its Disulfide-Bridged Dimer. [作者：Beer, Leanne;Reed, Robert W.;Robertson, Craig M.;Oakley, Richard T.;Tham, Fook S.;Haddon, Robert C.;,期刊：Organic Letters, 页码：3121-3123 , 文章类型： 研究论文，,卷期：2008年10-14] The presence of two disulfide groups in the tetrathiophenalenyl radical TTPLY leads to a highly delocalized spin distribution and the lowest cell potential ever obsd. for a monofunctional phenalenyl deriv. While the het... Regio- and Stereoselective Hydroamidation of 1-Alkynylphosphine Sulfides Catalyzed by Cesium Base. [作者：Kondoh, Azusa;Yorimitsu, Hideki;Oshima, Koichiro;,期刊：Organic Letters, 页码：3093-3095 , 文章类型： 研究论文，,卷期：2008年10-14] Regio- and stereoselective hydroamidation of 1-alkynylphosphine sulfides proceeds in the presence of Cs carbonate to provide (E)-2-amino-1-thiophosphinyl-1-alkenes. Asym. hydrogenation of the adducts catalyzed by an Ir ...