申请人:DUPHAR INTERNATIONAL RESEARCH B.V
公开号:EP0601632A1
公开(公告)日:1994-06-15
The invention relates to a method of preparing an optically active cyanohydrin carboxylic acid ester from an optically active cyanohydrin of opposite configuration, wherein said starting cyanohydrin is converted with a carboxylic acid in the presence of a dialkyl azodicarboxylate and a triarylphosphine.
The invention also relates to a method of preparing an optically active cyanohydrin of opposite configuration by a subsequent solvolysis of the ester obtained under conservation of the configuration.
本发明涉及一种从构型相反的光学活性氰醇制备光学活性氰醇羧酸酯的方法,其中所述起始氰醇在偶氮二甲酸二烷基酯和三芳基膦存在下与羧酸进行转化。
本发明还涉及一种制备光学活性相反构型氰醇的方法,该方法是通过随后溶解在保持构型条件下获得的酯来制备光学活性相反构型的氰醇。