[Bmim]Br_3对酮的选择性单溴化反应

Selective α-Monobromination of Ketones with [Bmim]Br_3

在无溶剂和室温条件下,三溴化1-丁基-3-甲基咪唑([Bmim]Br3)选择性地与酮反应,以90%～96%的产率生成相应的α-溴代酮.该方法反应条件温和、产率高、选择性好、环境友好.

Reaction of ketones with 1-butyl-3-methylimidazolium tribromide （[Bmim]Br3） under sol- vent-free conditions at room temperature, selectively gave the corresponding a-bromoketones with 90%-96% yields. Compared to the known report, this method has the advantages of mild reaction condition, good yields, high selectivity and more environmental benignity.