European Journal of Organic Chemistry

Palladium??Catalyzed Regioselective Cyclotrimerization of Acetylenes in Supercritical Carbon Dioxide

JS Cheng, HF Jiang

Index: Cheng, Jin-Sheng; Jiang, Huan-Feng European Journal of Organic Chemistry, 2004 , # 3 p. 643 - 646

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Citation Number: 37

Abstract

Abstract 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)

~94%

~92%

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