申请人:BASF Aktiengesellschaft
公开号:US04476316A1
公开(公告)日:1984-10-09
N-Substituted carbamates are prepared by reacting a carbamate with an olefin in the presence of a cation exchanger containing sulfonic acid groups and of from 0.1 to 50 g of an alcohol per mole of starting material II. The N-substituted carbamates obtainable by the process of the invention are active ingredients and useful starting materials for the preparation of dyes, pesticides and drugs.
通过在含有磺酸基团的阳离子交换剂存在下,将碳酸酯与烯烃反应,并在每摩尔起始物II中加入0.1至50克醇,制备N-取代碳酸酯。本发明的方法可获得的N-取代碳酸酯是活性成分,也是制备染料、杀虫剂和药物的有用起始物料。