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Palladium‐Catalyzed Regioselective Cyclotrimerization of Acetylenes in Supercritical Carbon Dioxide
Author(s) -
Cheng JinSheng,
Jiang HuanFeng
Publication year - 2004
Publication title -
european journal of organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 1434-193X
DOI - 10.1002/ejoc.200300299
Subject(s) - chemistry , regioselectivity , palladium , catalysis , supercritical carbon dioxide , supercritical fluid , carbon dioxide , organic chemistry , chloride , medicinal chemistry
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 CuCl 2 and 5 mL of MeOH were added. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004)