Bismuth Trichloride as a New Efficient Catalyst in the Aldol Reaction and the Michael Reaction
作者:Makoto Wada、Eiji Takeichi、Takashi Matsumoto
DOI:10.1246/bcsj.64.990
日期:1991.3
In the presence of a catalytic amount of bismuth(III) trichloride (5 mol%), silyl enol ethers react with aldehydes at room temperature in dichloromethane to give the corresponding aldols in good yields. Silyl enol ethers also have been found to react with α,β-unsaturated ketones at room temperature in dichloromethane to afford the corresponding 1,5-dicarbonyl compounds, the Michael adducts in good
在催化量的三氯化铋 (III) (5 mol%) 存在下,甲硅烷基烯醇醚在室温下在二氯甲烷中与醛反应,以良好的收率得到相应的醛醇。还发现甲硅烷基烯醇醚在室温下在二氯甲烷中与 α,β-不饱和酮反应,得到相应的 1,5-二羰基化合物,迈克尔加合物的产率很高。醛醇反应(甲硅烷基醚)和迈克尔反应(甲硅烷基烯醇醚)的中间加合物也以良好的产率获得。