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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21条记录   Synthesis of symmetrical and unsymmetrical N-aryl-substituted cyclic ureas through copper(I) iodide catalyzed Goldberg-Buchwald-Nandakumar C-N coupling reactions. [作者：Lee, Chung-Chieh;Wang, Po-Shih;Viswanath, M. Balaji;Leung, Man-kit;,期刊：Synthesis, 页码：1359-1366 , 文章类型： 研究论文，,卷期：2008年-9] The catalytic conditions of copper(I) iodide/potassium carbonate/trans-N,N'-dimethylcyclohexane-1,2-diamine, either in toluene at reflux temp., or by heating neat at 150?C effectively promoted the C-N coupling of aryl br... Synthesis of hexahydro-1H-benzo[c]chromen-1-amines via the intramolecular ring-opening reactions of aziridines by p-nucleophiles. [作者：Pulipaka, Aravinda B.;Bergmeier, Stephen C.;,期刊：Synthesis, 页码：1420-1430 , 文章类型： 研究论文，,卷期：2008年-9] The intramol. cyclization of aziridines with p-nucleophiles can be a useful route to a no. of heterocyclic and carbocyclic systems. This methodol. has been applied to the synthesis of hexahydro-1H-benzo[c]chromen-1-amin... Synthesis of a bifunctional monophosphinate DOTA derivative having a free carboxylate group in the phosphorus side chain. [作者：Rezanka, Pavel;Kubicek, Vojtech;Hermann, Petr;Lukes, Ivan;,期刊：Synthesis, 页码：1431-1435 , 文章类型： 研究论文，,卷期：2008年-9] A new bifunctional cyclen-based ligand, 3-[hydroxy({4,7,10-tris[(tert-butoxycarbonyl)methyl]-1,4,7,10-tetraazacycl ododecan-1-yl}methyl)phosphoryl]propanoic acid, was synthesized by alkylation of tri-tert-Bu 1,4,7,10-tet... Synthesis of norpandamarilactonines, pandamarilactonines, and pandanamine. [作者：Gogoi, Sanjib;Argade, Narshinha P.;,期刊：Synthesis, 页码：1455-1459 , 文章类型： 研究论文，,卷期：2008年-9] A facile route to naturally occurring (?-norpandamarilactonines A (I) and B, (?-pandamarilactonines A-D, and pandanamine (II) has been described from 3-methylfuran-2(5H)-one, with a reductive intramol. aza-Michael-type a... H-D exchange reaction taking advantage of the synergistic effect of heterogeneous palladium and platinum mixed catalyst. [作者：Ito, Nobuhiro;Watahiki, Tsutomu;Maesawa, Tsuneaki;Maegawa, Tomohiro;Sajiki, Hironao;,期刊：Synthesis, 页码：1467-1478 , 文章类型： 研究论文，,卷期：2008年-9] An effective deuteration method for alkyl-substituted arom. compds. using a heterogeneous Pd/C and Pt/C mixed catalyst in deuterium oxide in the presence of a small amt. of hydrogen gas was developed. Mixing a heterogene... Triphenylphosphine as a novel organocatalyst for chemoselective O-tert-butoxycarbonylation of phenols. [作者：Chebolu, Rajesh;Chankeshwara, Sunay V.;Chakraborti, Asit K.;,期刊：Synthesis, 页码：1448-1454 , 文章类型： 研究论文，,卷期：2008年-9] A novel organocatalytic procedure for the chemoselective O-tert-butoxycarbonylation of phenols under neutral and neat conditions is described. Application of cyclic thiourea as an efficient ligand in palladium-catalyzed Hiyama cross-coupling reactions. [作者：Wu, Zhi-sheng;Yang, Min;Li, Hong-ling;Qi, Yan-xing;,期刊：Synthesis, 页码：1415-1419 , 文章类型： 研究论文，,卷期：2008年-9] Cyclic thiourea has been first utilized as an efficient ligand in palladium-catalyzed Hiyama cross-coupling reactions. In the presence of palladium(II) acetate, N,N'-bis(2,5-di-tert-butylphenyl)-N,N'-ethylenethiourea, u... Silica-anchored proline-copper(I) as an efficient and recyclable catalyst for the Sonogashira reaction. [作者：Wang, Zuli;Wang, Lei;Li, Pinhua;,期刊：Synthesis, 页码：1367-1372 , 文章类型： 研究论文，,卷期：2008年-9] A novel silica-anchored proline-copper(I) org.-inorg. hybrid material was developed as an efficient catalyst for the Sonogashira reaction. Terminal alkynes were reacted with aryl iodides and bromides smoothly in the pres... o-Benzenedisulfonimide as reusable Bronsted acid catalyst for acid-catalyzed organic reactions. [作者：Barbero, Margherita;Cadamuro, Silvano;Dughera, Stefano;Venturello, Paolo;,期刊：Synthesis, 页码：1379-1388 , 文章类型： 研究论文，,卷期：2008年-9] Acid-catalyzed org. reactions, such as etherification, esterification, acetal synthesis, cleavage, and interconversion, and pinacol rearrangement were carried out in the presence of catalytic amts. of o-benzenedisulfonim... Polyhydroxylated pyrrolidines: synthesis of trideoxy-2,5-iminohexitols. [作者：Izquierdo, Isidoro;Plaza, Maria T.;Tamayo, Juan A.;Lo Re, Daniele;Sanchez-Cantalejo, Fernando;,期刊：Synthesis, 页码：1373-1378 , 文章类型： 研究论文，,卷期：2008年-9] A series of naturally occurring pyrrolidine alkaloids and analogs, with the general structure of trideoxy-2,5-iminohexitols (imino- or azasugars), have been enantiosynthesized using triorthogonally protected pyrrolidines... Synthesis of unsaturated tryprostatin B analogues and determination of their enantiomeric purity with (S)-1-benzyl-6-methylpiperazine-2,5-dione. [作者：Wagger, Jernej;Svete, Jurij;Stanovnik, Branko;,期刊：Synthesis, 页码：1436-1442 , 文章类型： 研究论文，,卷期：2008年-9] Novel racemic and enantiomerically enriched unsatd. tryprostatin B analogs were synthesized by an enaminone-based strategy. The synthesis also features a novel copper(I)-catalyzed dipeptide formation. In addn., the enan... Synthesis and reactivity of (+)-16-deoxo-15-oxoisosteviol. [作者：Bomkamp, Martin;Gottfried, Katharina;Kataeva, Olga;Waldvogel, Siegfried R.;,期刊：Synthesis, 页码：1443-1447 , 文章类型： 研究论文，,卷期：2008年-9] The synthesis of optically pure isosteviol derivs., e.g. I, with a keto function shifted to position 15 and its insertive esterification are described. Synthesis of pyrazinothienopyrimidine derivatives by the application of the intramolecular and intermolecular aza-Wittig reaction/heterocyclization. [作者：Blanco, Gerardo;Quintela, Jose M.;Peinador, Carlos;,期刊：Synthesis, 页码：1397-1403 , 文章类型： 研究论文，,卷期：2008年-9] Pyrazino[2',3':4,5]thieno[3,2-d]pyrimidine derivs., e.g. I, were synthesized by the intermol. aza-Wittig reaction of N-heteroaryl phosphazene derivs. with carboxylic acid chlorides. The heterocyclization occurs via imid... An unusual polyheterocyclic diversity by the p-cyclisation of N-carbamoyliminium ion, with or without tandem N,N-acetal cleavage, from spiro(imidazolidinoquinazolinones). [作者：Pesquet, Anthony;Daich, Adam;Coste, Servane;Van Hijfte, Luc;,期刊：Synthesis, 页码：1389-1396 , 文章类型： 研究论文，,卷期：2008年-9] Spiro(imidazolidinoquinazolinones), obtained easily in one step from 1-carbamoylisatins, are readily converted in three steps by successive N-alkylations and sodium borohydride regioselective redn. into the corresponding... One-pot synthesis of imidazopyridine derivatives. [作者：Parenty, Alexis D. C.;Cronin, Leroy;,期刊：Synthesis, 页码：1479-1485 , 文章类型： 研究论文，,卷期：2008年-9] Two highly efficient and general one-pot annulation reactions are described for the synthesis of imidazopyridine derivs. (IPs). The two procedures are complementary to each other: whereas the first one allows the prodn.... Microwave-assisted synthesis of N-sec- and N-tert-alkylated indoles. [作者：Schirok, Hartmut;,期刊：Synthesis, 页码：1404-1414 , 文章类型： 研究论文，,卷期：2008年-9] A synthesis of N-substituted indoles, e.g. I, by means of an epoxide-opening, nucleophilic arom. substitution, and dehydration sequence is reported, which is capable of generating even N-tert alkyl substituted derivs.