申请人:BASF Aktiengesellschaft
公开号:US04459236A1
公开(公告)日:1984-07-10
1-Alkenyl isocyanates are prepared by reacting aldehydes with carbamates to give N-(1-alkenyl)-carbamates and splitting these compounds at elevated temperatures. The 1,2-unsaturated isocyanates obtained are valuable starting materials for the preparation of pest control agents, dyes, drugs, textile water repellents, detergents, plastics, bleaches and adhesives, since they possess an activated double bond or an activated .alpha.-carbon atom, in addition to a reactive isocyanate group.
烯基异氰酸酯是通过将醛和碳酸酯反应制备而成的,生成N-(1-烯基)-碳酸酯,然后在高温下分解这些化合物。获得的1,2-不饱和异氰酸酯是制备杀虫剂、染料、药物、纺织品防水剂、洗涤剂、塑料、漂白剂和胶粘剂的宝贵起始原料,因为它们具有活化的双键或活化的α-碳原子,除了具有反应性的异氰酸基团。