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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36条记录   Room-temperature palladium-catalyzed allyl cross-coupling reaction with boronic acids using phosphine-free hydrazone ligands. [作者：Mino, Takashi;Kajiwara, Kenji;Shirae, Yoshiaki;Sakamoto, Masami;Fujita, Tsutomu;,期刊：SYNLETT, 页码：2711-2715 , 文章类型： 研究论文，,卷期：2008年-17] Palladium-catalyzed allyl cross-coupling reaction of allylic acetates with a variety of boronic acids at room temp. using a catalytic amt. of Pd(OAc)2 with phosphine-free hydrazone as a ligand gave the allylbenzene deriv... A new one-pot, three-component synthesis of 2,3,5-substituted or annulated 6-(methylthio)pyridines. [作者：Yadav, A. K.;Yadav, S. K. S.;Siddiqui, I.;Peruncheralathan, S.;Ila, H.;Junjappa, H.;,期刊：SYNLETT, 页码：2674-2680 , 文章类型： 研究论文，,卷期：2008年-17] A new 1-pot, 3-component synthesis of 2,3,5-substituted (or 2,3-annulated)-6-(methylthio)pyridines by reacting acyclic or cyclic active methylene ketones, NH4OAc, and (MeS)2C:CRCHO (R = H, Ph; as C3 1,3-biselectrophiles)... A new access to homo- and heterodimers of a-, b-, and g-cyclodextrin by a microwave-promoted Huisgen cycloaddition. [作者：Cravotto, Giancarlo;Mendicuti, Francisco;Martina, Katia;Tagliapietra, Silvia;Robaldo, Bruna;Barge, Alessandro;,期刊：SYNLETT, 页码：2642-2646 , 文章类型： 研究论文，,卷期：2008年-17] A new and efficient synthetic protocol for the prepn. of a-, b- and g-cyclodextrin (CD) homo- and heterodimers is presented. A microwave-promoted Huisgen 1,3-dipolar cycloaddn. will efficiently link together monoazido a... Total syntheses of diospongins A and B. [作者：Wang, Hua;Shuhler, Brian J.;Xian, Ming;,期刊：SYNLETT, 页码：2651-2654 , 文章类型： 研究论文，,卷期：2008年-17] The total syntheses of diospongins A and B employing 2,6-disubstituted dihydropyranones as key intermediates are described. First total synthesis of (?-powelline. [作者：Anwar, Hany F.;Hansen, Trond Vidar;,期刊：SYNLETT, 页码：2681-2683 , 文章类型： 研究论文，,卷期：2008年-17] The first total synthesis of (?-powelline (I) is reported in 10% overall yield over eight steps using an intramol. oxidative phenolic coupling reaction as the key reaction. Highly active ammonium-tagged olefin-metathesis catalyst for simplified purification. [作者：Kirschning, Andreas;Gulajski, Lukasz;Mennecke, Klaas;Meyer, Axel;Busch, Torsten;Grela, Karol;,期刊：SYNLETT, 页码：2692-2696 , 文章类型： 研究论文，,卷期：2008年-17] When an 2-isopropoxy-substituted benzylidene ligand of a Hoveyda-type Ru-metathesis complex is modified by an addnl. 4-diethylamino group and treated with PTSA it yields a highly active precatalyst suitable for RCM, cros... Phosphine-dependent selective cross-dimerization between terminal alkylacetylene and silylacetylene by iridium(I) guanidinate complex-phosphine system. [作者：Ogata, Kenichi;Oka, Oji;Toyota, Akinori;Suzuki, Noriyuki;Fukuzawa, Shin-ichi;,期刊：SYNLETT, 页码：2663-2666 , 文章类型： 研究论文，,卷期：2008年-17] A new iridium(I)-guanidinate complex was prepd. and a crystal structure was done. The complex served as an efficient catalyst for phosphine-dependent selective cross-dimerization between silylacetylene and terminal alky... Organocatalytic domino Mannich aza-Michael reactions towards the stereoselective synthesis of highly substituted pipecolic esters. [作者：Khaliel, Souad;Nandakumar, Mecheril Valsan;Krautscheid, Harald;Schneider, Christoph;,期刊：SYNLETT, 页码：2705-2707 , 文章类型： 研究论文，,卷期：2008年-17] Readily available chiral 7-oxo-2-enimides were converted into highly substituted pipecolic esters in moderate yields and excellent stereocontrol through a proline-catalyzed domino Mannich aza-Michael reaction. Lewis acid induced highly regioselective synthesis of a new class of substituted isoxazolidines. [作者：Benfatti, Fides;Cardillo, Giuliana;Gentilucci, Luca;Mosconi, Elisa;Tolomelli, Alessandra;,期刊：SYNLETT, 页码：2605-2608 , 文章类型： 研究论文，,卷期：2008年-17] The 1,4-addn. of N,O-bis(trimethylsilyl)hydroxylamine to alkylideneacetoacetates afforded in one step 3,4,5-trisubstituted isoxazolidines. An investigation on the effect of the Lewis acid catalysis on the regioselectivi... Syntheses of novel (E)-N-methyl-2-styryl-4-quinolones. [作者：Almeida, Andreia I. S.;Silva, Vera L. M.;Silva, Artur M. S.;Pinto, Diana C. G. A.;Cavaleiro, Jose A. S.;,期刊：SYNLETT, 页码：2593-2596 , 文章类型： 研究论文，,卷期：2008年-17] Two new synthetic routes for (E)-N-methyl-2-styryl-4-quinolones were established, both starting from (E)-2-(cinnamoylamino)acetophenones. In the first, (E)-2-(cinnamoylamino)acetophenones are cyclized and then methylated... Investigation of a tandem iminium ion allylation approach to piperidines. [作者：Mancey, Nicole C.;Butlin, Roger J.;Harrity, Joseph P. A.;,期刊：SYNLETT, 页码：2647-2650 , 文章类型： 研究论文，,卷期：2008年-17] process is described as well as preliminary expts. aimed at understanding the mechanism of a competing olefin isomer formation. Deoxygenation of pyridine N-oxides by palladium-catalyzed transfer oxidation of trialkylamines. [作者：Fuentes, Jose A.;Clarke, Matthew L.;,期刊：SYNLETT, 页码：2579-2582 , 文章类型： 研究论文，,卷期：2008年-17] A convenient and chemoselective method for deoxygenation of pyridine N-oxides by transfer oxidn. of triethylamine catalyzed by [Pd(OAc)2]/dppf is described. Systematic study of a solvent-free mechanochemically induced domino oxa-Michael-aldol reaction in a ball mill. [作者：Gerard, Emilie M. C.;Sahin, Huelya;Encinas, Arantxa;Braese, Stefan;,期刊：SYNLETT, 页码：2702-2704 , 文章类型： 研究论文，,卷期：2008年-17] A systematic investigation of parameters influencing on mech. processing, ball milling, of org. reactants was carried out. As model reactions, domino oxa-Michael-aldol reactions yielding tetrahydroxanthenones were chose... Synthesis of functionalized dialkyl cyclobutane-1,1-dicarboxylates and alkyl 5,6-dihydro-4H-pyran-3-carboxylates via Michael-induced ring closure of d-chloro-a,b-unsaturated diesters and keto esters. [作者：Mangelinckx, Sven;Vermaut, Bruno;Verhe, Roland;De Kimpe, Norbert;,期刊：SYNLETT, 页码：2697-2701 , 文章类型： 研究论文，,卷期：2008年-17] Michael-induced ring closure (MIRC) of 2-(3-chloro-2,2-dimethylpropylidene)malonate, upon treatment with NaSCMe3, NaOMe, or NaCN in MeOH, provided a short and efficient synthesis of new 2-functionalized cyclobutane-1,1-d... Synthesis of 3-arylideneindolin-2-ones from 2-aminophenols by Ugi four-component reaction and Heck carbocyclization. [作者：Dai, Wei-Min;Shi, Jianyu;Wu, Jinlong;,期刊：SYNLETT, 页码：2716-2720 , 文章类型： 研究论文，,卷期：2008年-17] with trans-cinnamic acids, arom. aldehydes and isocyanides in MeOH (50? 48 h) to give the linear a-[N-(2-hydroxyphenyl)-substituted amido] carboxamides, e.g., I, in 54-80% yields. Treatment of the 2-hydroxyphenyl moiety... a-Arylation of aryl ketones: expanding the scope of the Truce-Smiles rearrangement. [作者：Snape, Timothy J.;,期刊：SYNLETT, 页码：2689-2691 , 文章类型： 研究论文，,卷期：2008年-17] The Truce-Smiles rearrangement was applied to the synthesis of substituted a-aryl aryl ketones and the synthetic utility of the products was demonstrated by the conversion of one of them to 2-(1H-indol-2-yl)phenol.