申请人:Hoechst Aktiengesellschaft
公开号:US03950413A1
公开(公告)日:1976-04-13
A process for the preparation of phosphonic acid dihalides of the formula ##EQU1## IN WHICH R is .alpha., .beta.-unsaturated alkyl, .alpha., .beta.-unsaturated alkyl, phenyl or benzyl and may be further substituted, which comprises reacting corresponding phosphonic or pyrophosphonic acids or their functional derivatives with acid halides of the formula (CO).sub.n Hal.sub.2 where n is 1 or 2.
制备磷酸二卤代物的方法,其中R为α,β-不饱和烷基,α,β-不饱和烷基,苯基或苄基,可能进一步取代,包括将相应的磷酸或焦磷酸或其官能衍生物与式为(CO)nHal2的酸卤反应,其中n为1或2。