申请人:Hoechst Aktiengesellschaft
公开号:US04739097A1
公开(公告)日:1988-04-19
Compounds of the general formula I ##STR1## in which R is a hydrogen or halogen atom, a cyanide or an alkyl group having 1-4 carbon atoms and R.sub.1 is a hydrogen or halogen atom, nitro, alkyl, alkoxy, aryl, aryloxy, acyl or alkoxycarbonyl group, are prepared by esterifying two adjacent OH groups to give the cyclic carbonate, esterifying the free OH group with (meth)acrylic acid and selectively hydrolyzing the carbonate. The compounds are free of polyunsaturated impurities and can be used for preparing purely linear polymers.
通式为I ##STR1##的化合物,其中R是氢或卤素原子,氰基或具有1-4个碳原子的烷基基团,R.sub.1是氢或卤素原子,硝基,烷基,烷氧基,芳基,芳氧基,酰基或烷氧羰基基团,通过酯化相邻的两个OH基团形成环状碳酸酯,酯化游离的OH基团与(甲)丙烯酸,然后选择性水解碳酸酯制备而成。这些化合物不含多不饱和杂质,可用于制备纯直链聚合物。