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Novel Role of Carbon Dioxide as a Selective Agent in Palladium-Catalyzed Cyclotrimerization of Alkynes

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【Author】 LI, Jin-Heng XIE, Ye-XiangKey Laboratory of Chemical Biology & Traditional Chinese Medicine Research, College of Chemistry and Chemi-cal Engineering, Hunan Normal University, Changsha, Hunan 410081, China

【机构】 Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research； College of Chemistry and Chemi-cal Engineering； Hunan Normal University； Changsha； Hunan 410081； China； China；

【Abstract】 Carbon dioxide was found as a selective agent to promote the palladium-catalyzed cyclotrimerization of alkynes in water. Both aryl and alkylacetylenes afforded the corresponding cyclotrimerization products regioselectively in high yields using PdCl2, CuCl2, and CO2 as the catalytic system. However, tert-butylacetylene bearing a bulky group gave a dimerization product. Mechanism of this reaction was also discussed.更多还原

【关键词】 carbon dioxide； a selective agent； palladium； cyclotrimerization； alkyne；
【Key words】 carbon dioxide； a selective agent； palladium； cyclotrimerization； alkyne；

【基金】 Project supported by the National Natural Science Foundation of China (No. 20202002); Hunan Province Education Department (No. 02C211); and Hunan Normal University (2001).

【文献出处】 Chinese Journal of Chemistry ,中国化学(英文版) , 编辑部邮箱 ,2004年12期

【分类号】O643.3
【下载频次】15

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