公开(公告)号：US3681466A

公开(公告)日：1972-08-01

申请号：US3681466D

申请日：1969-09-23

Applicant: BASF AG

Inventor： POMMER HORST ,  SEID BERNHARD ,  NUERRENBACH AXEL ,  KLOTMANN GEORG ,  GRASSNER HANS

IPC: C07C29/00 ,  C07C33/00 ,  C07C403/00

CPC classification number: C07C403/08 ,  C07C2601/16

Abstract: Continuous production of axerophthol by reaction of axerophthyl acetate with a lower alcohol using guanidine as transesterification catalyst in two stages, alkyl acetate and some of the excess alcohol being distilled off in the first stage and the remainder of the alcohol being removed in the second stage by distillation with a hydrocarbon as entrainer.

Abstract translation: 通过使用胍作为酯交换催化剂在两个阶段中通过乙酸半酯与低级醇反应连续生产萜烯酚，在第一阶段中将乙酸烷基酯和一些过量的醇在第二阶段被蒸馏除去，其余的醇在第二阶段被除去 用烃作为夹带剂进行蒸馏。