[EN] PROCESS FOR THE MANUFACTURE OF TOCYL AND TOCOPHERYL ACYLATES<br/>[FR] PROCEDE DE PREPARATION D'ACRYLATES DE TOCYLE ET DE TOCOPHERYLE
申请人:DSM IP ASSETS BV
公开号:WO2004096790A1
公开(公告)日:2004-11-11
A process for the manufacture of a tocyl acylate or a tocopheryl acylate comprises reacting tocol or a tocopherol with an acylating agent in the presence of a catalyst of the general formula HC1R2R3, wherein R1, R2 and R3 each signify the sulpho group, or R1, R2 and R3 each signify a perfluoroalkylsulphonyl group whereby at least two of R1, R2 and R3 are identical such perfluoroalkyl-sulphonyl groups, or R1 signifies the pentafluorophenyl-sulphonyl group and R2 and R3 each signify an identical perfluoroalkylsulphonyl group. The main commercial form of vitamin E, being (all-rac)-α-tocapheryl acetate, can be manufactured by acylation of (all-rac)-α-tocopherol according to this process.
一种制备生育酚酰基酯或生育酚酰基酯的方法包括在催化剂的存在下,将生育酚或生育醇与酰化试剂反应,所述催化剂具有通式HC1R2R3,其中R1、R2和R3分别表示磺基,或R1、R2和R3分别表示全氟烷基磺酰基,其中至少有两个R1、R2和R3是相同的全氟烷基磺酰基,或R1表示五氟苯基磺酰基,R2和R3各自表示相同的全氟烷基磺酰基。维生素E的主要商业形式是(全反式)-α-生育酚醋酸酯,可以通过按照这种方法对(全反式)-α-生育醇进行酰基化来制造。