The enantioselective borohydride reduction using optically active cobalt(II) complex catalysts was successfully applied to various aryl N-diphenylphosphinyl imines, and the corresponding reduced products were obtained in good yields with high enantiomeric excesses (up to 99% ee). The optically active primary amines were obtained by the successive hydrolysis under mild conditions.
                                    使用具有光学活性的
钴(II)络合物催化剂成功地将对映体选择性
硼氢化还原法应用于各种芳基 N-
二苯基膦酰亚胺,并以良好的收率和较高的对映体过量(高达 99% ee)获得了相应的还原产物。在温和的条件下,通过连续
水解得到了具有光学活性的
伯胺。