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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   Stereoselective 1,4-phenyl migration from silicon to carbon in a-siloxy cyclic acetal systems: a concise synthesis of 1,2-cis-phenyl C-glycoside and enantio-enriched silanol. [作者：Nakazaki, Atsuo;Usuki, Junji;Tomooka, Katsuhiko;,期刊：SYNLETT, 页码：2064-2068 , 文章类型： 研究论文，,卷期：2008年-13] The treatment of O-glycoside with alc. in the presence of montmorillonite K10 clay and 4-?MS yields the 1,4-aryl migration product with a 1,2-cis-Ph C-glycoside scaffold and a chiral silyl moiety with high stereoselectiv... Fast and efficient preparation of an a-fucosyl building block by reductive 1,2-benzylidene ring-opening reaction. [作者：Werz, Daniel B.;Schuster, Heiko J.;Tietze, Lutz F.;,期刊：SYNLETT, 页码：1969-1972 , 文章类型： 研究论文，,卷期：2008年-13] 1,2-Benzylidene ring opening on fucose was promoted in the presence of different reducing agents and Lewis acids, providing a fast access to fucosyl building blocks. Stereoselective synthesis of (25R)-dafachronic acids and (25R)-cholestenoic acid as potential ligands for the DAF-12 receptor in Caenorhabditis elegans. [作者：Martin, Rene;Schmidt, Arndt W.;Theumer, Gabriele;Kurzchalia, Teymuras V.;Knoelker, Hans-Joachim;,期刊：SYNLETT, 页码：1965-1968 , 文章类型： 研究论文，,卷期：2008年-13] Com. available diosgenin was used as starting material for a highly efficient synthesis of (25R)-dafachronic acids and (25R)-cholestenoic acid, potential ligands for the receptor DAF-12 in the nematode Caenorhabditis ele... A concise diastereoselective approach to the left-hand side of batzelladine A. [作者：Davies, Christopher D.;Elliott, Mark C.;Hill-Cousins, Joseph;Khan, Misbah-ul A.;Maqbool, Tahir;Wood, John L.;,期刊：SYNLETT, 页码：2028-2032 , 文章类型： 研究论文，,卷期：2008年-13] A highly diastereoselective 3-component coupling reaction was used in a concise approach to the left-hand side of batzelladine A. The stereoselectivity of this reaction, along with related observations described herein,... Aza-henry reaction of ketoimines catalyzed by Na2CO3. An efficient way to b-nitroamines. [作者：Wang, Liwei;Tan, Cheng;Liu, Xiaohua;Feng, Xiaoming;,期刊：SYNLETT, 页码：2075-2077 , 文章类型： 研究论文，,卷期：2008年-13] A simple and efficient way to b-nitroamines via aza-Henry reaction of N-tosyl ketoimines and nitromethane was developed. In the presence of only 5 mol% Na2CO3, most of the N-tosyl ketoimines can react to give products i... Direct synthesis of acyl azides from carboxylic acids by the combination of trichloroacetonitrile, triphenylphosphine and sodium azide. [作者：Kim, Joong-Gon;Jang, Doo Ok;,期刊：SYNLETT, 页码：2072-2074 , 文章类型： 研究论文，,卷期：2008年-13] Various carboxylic acids were converted into acyl azides in excellent yields by treating with trichloroacetonitrile, triphenylphosphine and sodium azide at room temp. The reaction was applicable to the prepn. of dipepti... Traceless solid-phase synthesis of mappicine ketone library via multiple chemoselective palladium-catalyzed reactions on benzenesulfonate linker. [作者：Tsukamoto, Hirokazu;Suzuki, Risako;Kondo, Yoshinori;,期刊：SYNLETT, 页码：2005-2010 , 文章类型： 研究论文，,卷期：2008年-13] We report here a solid-phase synthesis of a library of mappicine ketone (I) a leading antiviral compd. with activity against herpes viruses and human cytomegalovirus. The synthesis is based on multiple chemoselective pa... Use of acyl phosphonates as a coupling partner for rhodium-catalyzed [2+2+2] cycloaddition: unexpected dependence of the reactivity on structures of a,w-diynes. [作者：Tanaka, Ken;Tanaka, Rie;Nishida, Goushi;Hirano, Masao;,期刊：SYNLETT, 页码：2017-2022 , 文章类型： 研究论文，,卷期：2008年-13] A cationic rhodium(I)-H8-BINAP complex catalyzes a [2+2+2] cycloaddn. of 1,6- and 1,7-diynes with acyl phosphonates in high yields with high regioselectivity. Interestingly, the reactivity of a,w-diynes toward acyl phos... Cobalt-mediated [2+2+2] cycloaddition of alkynyl boronates to indole and pyrrole double bonds. [作者：Amslinger, Sabine;Aubert, Corinne;Gandon, Vincent;Malacria, Max;Paredes, Elisa;Vollhardt, K. Peter C.;,期刊：SYNLETT, 页码：2056-2060 , 文章类型： 研究论文，,卷期：2008年-13] The complex [CpCo(C2H4)2] facilitates the [2+2+2] cycloaddn. of borylalkynes to N-(4-pentynoyl)indole and -pyrrole to furnish heterocyclofused borylcyclohexadienes regioselectively. Reaction of a polycyclic diketone with lithiated methoxyallene: synthesis of new functionalized cage compounds. [作者：Zimmer, Reinhold;Taszarek, Maurice;Schefzig, Luise;Reissig, Hans-Ulrich;,期刊：SYNLETT, 页码：2046-2050 , 文章类型： 研究论文，,卷期：2008年-13] Syntheses of several new functionalized cage compds. are described. The key steps of the reaction sequence are addn. of lithiated methoxyallene to cage diketone I (R1R2 = R3R4 = O), prepn. of dehydrated intermediate I [R... Nickel-catalyzed cross-coupling reaction of allyl- and benzylzinc with alkenyl sulfides. [作者：Baba, Yoko;Toshimitsu, Akio;Matsubara, Seijiro;,期刊：SYNLETT, 页码：2061-2063 , 文章类型： 研究论文，,卷期：2008年-13] 29, 67 Alkenyl sulfides can be utilized for nickel-catalyzed cross-coupling reactions with allyl- and benzylzinc reagents. Thus, NiCl2/P(2-furyl)3/BuLi catalyzed cross-coupling reaction of (E)-1-phenylthio-2-phenylethen... Application of terminal electrophilic phosphinidene complexes. [作者：Rani, Manju;,期刊：SYNLETT, 页码：2078-2079 , 文章类型： 综述，,卷期：2008年-13] A review. Phosphinidene complexes in the presence of alkenes and substituted acetylenes undergo (2+1)-cycloaddn. reactions affording a variety of three-membered P-heterocycles. Copper-catalyzed mild and efficient entry to 1-substituted indazolones. [作者：Tanimori, Shinji;Ozaki, Yuka;Iesaki, Yasukazu;Kirihata, Mitsunori;,期刊：SYNLETT, 页码：1973-1976 , 文章类型： 研究论文，,卷期：2008年-13] A variety of 1-alkyl- and aryl-substituted indazolones were synthesized easily starting from com. available 2-halobenzoic acids and hydrazines via the copper-catalyzed intramol. C-N bond formation of 2-halobenzohydrazide... Trimethylsilyl trifluoromethanesulfonate mediated addition-cyclization of N-vinyloxazolidin-2-ones to nitrones: an efficient access to 4-substituted 5-azaisoxazolidines. [作者：Nguyen, Thanh Binh;Martel, Arnaud;Dhal, Robert;Dujardin, Gilles;,期刊：SYNLETT, 页码：2041-2045 , 文章类型： 研究论文，,卷期：2008年-13] Me3SiO3SCF3 (TMSOTf) was conveniently used to promote the reaction involving N-alkenyloxazolidin-2-ones and activated nitrones, leading to new 4-substituted N-isoxazolidin-5-yl-2-oxazolidinones in good to excellent yield... A novel [3+2] dipolar cycloaddition approach to hexahydrobenzofuro[3,2-b]pyrroles. [作者：Kim, Ikyon;Na, Hee-Kyung;Kim, Kyung Ran;Kim, Sun Gi;Lee, Ge Hyeong;,期刊：SYNLETT, 页码：2069-2071 , 文章类型： 研究论文，,卷期：2008年-13] (Heterocyclic Compounds (More Than One Hetero Atom)) Section A highly stereoselective intramol. 1,3-dipolar cycloaddn. reaction of azomethine ylides derived from 2-vinyloxybenzaldehydes proceeded smoothly to allow for a ... Synthesis of chiral ethyl 5-(acetoxyimino)-2,7,7-trimethyl-4-(1-naphthyl)-5,6,7,8-tetrahydroquinoli ne-3-carboxylate via lipase-catalyzed hydrolysis. [作者：Zhou, Yongchang;Sato, Yu;Kijima, Tatsuro;Izumi, Taeko;,期刊：SYNLETT, 页码：1999-2004 , 文章类型： 研究论文，,卷期：2008年-13] Novel racemic polyhydroquinoline derivs. were synthesized by a one-pot approach via a modified Hantzsch reaction followed by aromatization. The optical resoln. was carried out by using lipase L-2 in MTBE contg. 1 equiv ...