- Synthesis of phthalonitriles using a palladium catalyst.
[作者:Iqbal, Zafar;Lyubimtsev, Alexey;Hanack, Michael;,期刊:SYNLETT, 页码:2287-2290 , 文章类型: 研究论文,,卷期:2008年-15]
- An easy synthetic method to obtain phthalonitriles from o-dibromobenzenes under mild conditions in high yields using Zn(CN)2 and a catalytic amt. of tris(dibenzylideneacetone)dipalladium and 1,1'-bis(diphenylphosphino)fe...
- Microwave-assisted one-pot synthesis of a-fluoro-a,b-unsaturated esters under solvent-free conditions.
[作者:Ren, Aishan;Yang, Xiongjun;Hong, Jing;Yu, Xiaochun;,期刊:SYNLETT, 页码:2376-2378 , 文章类型: 研究论文,,卷期:2008年-15]
- A microwave-assisted approach for the synthesis of a-fluoro a,b-unsatd. esters from bromofluoroacetate, aldehydes, and PPh3 in the presence of Zn-Cu under solvent-free conditions was achieved. The reaction was accomplish...
- Efficient conversion of acetophenones into 1,3,5-triarylbenzenes catalyzed by bismuth(III) trifluoromethanesulfonate tetrahydrate.
[作者:Ono, Fumiaki;Ishikura, Yuichi;Tada, Yuusuke;Endo, Masato;Sato, Tsuneo;,期刊:SYNLETT, 页码:2365-2367 , 文章类型: 研究论文,,卷期:2008年-15]
- Bismuth(III) trifluoromethanesulfonate efficiently catalyzes the cyclotrimerization of acetophenones ArCOMe (Ar = Ph, 4-MeC6H4, 3-ClC6H4, etc.) into the corresponding 1,3,5-triarylbenzenes in good yields.
- (S)-Pyrrolidin-2-ylmethyl-1,2,3-triazolium salts; ionic liquid supported organocatalysts for enantioselective Michael additions to b-nitrostyrenes.
[作者:Yacob, Zekarias;Shah, Jabbar;Leistner, Joachim;Liebscher, Juergen;,期刊:SYNLETT, 页码:2342-2344 , 文章类型: 研究论文,,卷期:2008年-15]
- task-specific ionic liqs. via click reaction and alkylation. They serve as excellent recyclable catalysts in enantioselective Michael addns. to b-nitrostyrenes in excess of carbonyl compds. as reactant and as solvent pr...
- Ionic polymer supported copper(I): a reusable catalyst for Huisgen's 1,3-dipolar cycloaddition.
[作者:Sirion, Uthaiwan;Bae, Yu Jin;Lee, Byoung Se;Chi, Dae Yoon;,期刊:SYNLETT, 页码:2326-2330 , 文章类型: 研究论文,,卷期:2008年-15]
- A series of CuI-immobilized polymeric supports having quaternary ammonium salts were prepd. as recyclable heterogeneous catalysts with evaluation of their ability in Cu(I)-catalyzed Huisgen's 1,3-dipolar cycloaddn. of az...
- [1,2]-Wittig rearrangement of (benzyloxy)acetamides.
[作者:Hameury, Thomas;Guillemont, Jerome;Van Hijfte, Luc;Bellosta, Veronique;Cossy, Janine;,期刊:SYNLETT, 页码:2345-2347 , 文章类型: 研究论文,,卷期:2008年-15]
- substituted a-hydroxy amides in good yields and good diastereoselectivity.
- Regioselective synthesis of functionalized 3-(methylthio)phenols by the first formal [3+3] cyclocondensations of 1,3-bis(trimethylsilyloxy)-1,3-butadienes with 1,1-bis(methylthio)-1-en-3-ones.
[作者:Lubbe, Mathias;Klassen, Renske;Trabhardt, Tiana;Villinger, Alexander;Langer, Peter;,期刊:SYNLETT, 页码:2331-2333 , 文章类型: 研究论文,,卷期:2008年-15]
- The [3+3] cyclocondensation of 1,3-bis(silyl enol ethers) with 1,1-bis(methylthio)-1-en-3-ones results in the regioselective formation of 3-(methylthio)phenols. The products represent useful synthetic building blocks, w...
- Reinvestigation of highly diastereoselective pentacyclic spirolactone formation by direct anodic oxidation of 2,4-dimethylphenol.
[作者:Barjau, Joaquin;Konigs, Pia;Kataeva, Olga;Waldvogel, Siegfried R.;,期刊:SYNLETT, 页码:2309-2312 , 文章类型: 研究论文,,卷期:2008年-15]
- elucidated which strongly supports the postulated mechanism for the stereoselective formation of this spirolactone moiety. Addnl., the authors report an ameliorated protocol for the rearrangement to the spirolactone sys...
- Total synthesis of largazole.
[作者:Ren, Qi;Dai, Lu;Zhang, Hui;Tan, Wenfei;Xu, Zhengshuang;Ye, Tao;,期刊:SYNLETT, 页码:2379-2383 , 文章类型: 研究论文,,卷期:2008年-15]
- The stereocontrolled total synthesis of largazole was accomplished starting from 3-[(tert-butyldimethylsilyl)oxy]propanol in 5.8% overall yield, unambiguously confirming its structure. Key steps included the use of the ...
- A facile synthesis of N-carbamoylamino acids.
[作者:Bogolubsky, Andrey V.;Ryabukhin, Sergey V.;Pakhomov, Gennadiy G.;Ostapchuk, Eugeniy N.;Shivanyuk, Alexander N.;Tolmachev, Andrey A.;,期刊:SYNLETT, 页码:2279-2282 , 文章类型: 研究论文,,卷期:2008年-15]
- N-Carbamoyl amino acids were obtained through the alkylation of monosubstituted parabanates and subsequent hydrolysis. This new methodol. furnishes structurally and functionally diverse N-carbamoyl amino acids in high p...
- Synthesis of functionalized pyroglutamic acids. Part 1: The synthetic utility of N-acylindole and the Ugi reaction with a chiral levulinic acid.
[作者:Buller, Matthew J.;Gilley, Cynthia B.;Nguyen, Brian;Olshansky, Lisa;Fraga, Breena;Kobayashi, Yoshihisa;,期刊:SYNLETT, 页码:2244-2248 , 文章类型: 研究论文,,卷期:2008年-15]
- A variety of pyroglutamate derivs. are readily synthesized via N-acylindole intermediates obtained by the Ugi reaction. For the prepn. of functionalized pyroglutamate derivs., the diastereoselectivity of the Ugi 4-cente...
|