申请人:Ciba-Geigy Corporation
公开号:US04892962A1
公开(公告)日:1990-01-09
The reaction of allyl bromo- or chloro-difluoroacetates with monochlorisilanes in the presence of zinc with heating gives silyl esters of .alpha.,.alpha.-difluoro-.gamma.,.delta.-pentenoic acids. The free acids, from which acid derivatives can be prepared by conventional methods, are obtained by hydrolysis. The pentenoic acids and pentenoic acid derivatives are suitable for the preparation of polymers and copolymers, from which metal-organic polymers and copolymers having catalytic properties are obtainable.
联丙基溴或氯二氟乙酸酯与单氯硅烷在锌的存在下加热反应,生成α,α-二氟-γ,δ-戊烯酸的硅酯。通过水解可以得到自由酸,从而可以通过传统方法制备酸衍生物。戊烯酸和戊烯酸衍生物适用于制备聚合物和共聚物,从中可以获得具有催化性能的金属有机聚合物和共聚物。