°C to give the corresponding saturated carbonyl compounds; here hydrogenation of the CC bond was preferred over the CO bond. Under the same reaction conditions but using an excess of benzylamine, a tandem process is then favoured, starting also with the reduction of the CC bond followed by a nucleophilic addition of the primary amine to yield valuable saturated imines with good to excellent yields (62%–91%)
已开发出一种基于
镍膦配合物的简单均相催化体系,用于转移氢化和缩合α,β-不饱和酮,并使用
伯胺作为氢供体,生成饱和的
亚胺和饱和的
亚胺。因此,在[(dippe)Ni(μ-H)] 2(dippe = 1, 2-双-(
二异丙基膦基)-
乙烷)在180℃下使用
乙醇作为溶剂,得到相应的饱和羰基化合物;在此,C C键的氢化优于C O键。在相同的反应条件下,但使用过量的
苄胺,则有利于串联反应,并且从还原C开始C键,然后亲核加成
伯胺,可制得有价值的饱和
亚胺,收率良好至优异(62%–91%)。