A process for producing a benzhydrol compound (II) which comprises hydrogenating a benzophenone compound (I) in the presence of a hydrogenation catalyst consisting of a transition metal complex, a base and an optically active diamine compound:
wherein R1 to R10 each represents H, OH, C1-4 alkyl, C1-4 alkoxy, C1-4 alkanoyl, etc., R2 and R3, and R8 and R9 may form -CH=CH-CH=CH-, or any two of R1 to R9 adjacent to each other may be bonded to thereby form -OCH2O- or -(CH2)3-. By using this process, optically active benzhydrol compounds which have a high purity and are useful as, for example, intermediates in the synthesis of drugs can be produced by simple procedures.
一种生产苯海醇化合物(II)的工艺,包括在由过渡
金属络合物、碱和光学活性二胺化合物组成的氢化催化剂存在下氢化
二苯甲酮化合物(I):
其中R1至R10各自代表H、OH、C1-4烷基、C1-4烷氧基、C1-4烷酰基等,R2和R3以及R8和R9可形成-CH=CH-CH=CH-,或相邻的任何两个R1至R9可键合从而形成-O O-或-(
CH2)3-。使用这种工艺,可以通过简单的程序生产出纯度高、可用作药物合成中间体等的光学活性二苯基
甲醇化合物。