Palladium-catalyzed regioselective cyclotrimerization of acetylenes in supercritical carbon dioxide

被引:41
作者
Cheng, JS [1 ]
Jiang, HF
机构
[1] Chinese Acad Sci, Shanghai Inst Organ Chem, State Key Lab Organomet, Shanghai 200032, Peoples R China
[2] Chinese Acad Sci, Guangzhou Inst Chem, LCLC, Guangzhou 510650, Peoples R China
关键词
alkynes; cyclotrimerization; palladium; regioselectivity; supercritical fluids;
D O I
10.1002/ejoc.200300299
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The cyclotrimerization process of different substituted alkynes occurred smoothly in supercritical carbon dioxide for the first time. The reactions are catalyzed by palladium chloride. High yields and regioselectivities were observed when 2 equiv. of CuCl2 and 5 mL of MeOH were added. ((C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004).
引用
收藏
页码:643 / 646
页数:4
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