CATALYTIC ADDITION OF AROMATIC C-H BONDS TO ACETYLENES

被引:192
作者
KAKIUCHI, F [1 ]
YAMAMOTO, Y [1 ]
CHATANI, N [1 ]
MURAI, S [1 ]
机构
[1] OSAKA UNIV,FAC ENGN,DEPT APPL CHEM,SUITA,OSAKA 565,JAPAN
关键词
D O I
10.1246/cl.1995.681
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The reaction of alpha-tetralone with various internal acetylenes can be catalyzed by Ru(H)(2)(CO)(PPh(3))(3) and gives 1:1 addition products. Symmetrically substituted dialkyl- and diaryiacetylenes gave an E/Z mixture of 1:1 coupling products in good yields. 1-Phenyl-1-butyne afforded all four possible regio- and stereoisomers. 1-Trimethylsilyl-1-propyne gave only E-isomer with C-C bond formation exclusively at the carbon atom substituted with the silyl group. Other internal acetylenes having a trimethylsilyl group also proceeded regioselectively although mixtures of stereoisomers were obtained.
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页码:681 / 682
页数:2
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