Palladium-catalyzed reactions of terminal acetylenes and olefins with halo-1, 3-azoles.

…, Y KONDO, M SHIRAIWA, H YAMANAKA

Index: Sakamoto, Takao; Nagata, Hideo; Kondo, Yoshinori; Shiraiwa, Masafumi; Yamanaka, Hiroshi Chemical and Pharmaceutical Bulletin, 1987 , vol. 35, # 2 p. 823 - 828

Full Text: HTML

Citation Number: 41

Abstract

The palladium-catalyzed reactions of 4-bromo-and 5-bromothiazoles, as well as 4-bromo- and 5-bromooxazoles with terminal acetylenes gave ethynyl derivatives in 43-89% yields, whereas the reactions of 2-bromothiazoles and iodo-N-methylimidazoles afforded the products in poor yields. The reaction of the halo-1, 3-azoles with terminal olefins was also examined.