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Sato等曾报道了双环戊二烯基二氯钛(Cp_2TiCl_2)催化下格氏试剂对羰基化合物和环氧化合物的还原反应,徐维铧等也曾报道异丙基溴化镁在Cp_2TiCl_2催化下对芳卤的还原和异丙基溴化镁-Cp_2TiCl_2体系对二烯烃的催化异构化的研究,但迄今为止还未见报道Cp_2TiCl_2催化下格氏试剂和亚胺的反应。本文报道异丙基溴化镁在催化量Cp_2TiCl_2存在下,将亚胺还原成相应仲胺的结果.
Sato et al. Reported on the reduction of Grignard reagents for carbonyl compounds and epoxides catalyzed by dicyclopentadienyl dichloro-titanium (Cp_2TiCl_2). XU Wei-hua et al. Have also reported that isopropylmagnesium bromide Reduction and isopropylmagnesium bromide-Cp_2TiCl_2 system for the catalytic isomerization of diolefins. However, up to now, no reaction between Grignard reagent and imine catalyzed by Cp_2TiCl_2 has been reported. This paper reports the results of the reduction of imine to the corresponding secondary amine with isopropylmagnesium bromide in the presence of a catalytic amount of Cp 2 TiCl 2.