Method for preparing perfluorophosphonate vinyl ether monomer from perfluorovinyl ether halide in one step

The invention belongs to the technical field of synthesis in the technical field of chemical engineering, and particularly relates to a method for preparing a perfluorophosphonate vinyl ether monomer # imgabs 1 # from perfluorovinyl ether halide # imgabs 0 # in one step. The perfluorovinyl ether halide and diethyl bromofluoromethylphosphonate or diethyl phosphite or dimethyl/ethyl chlorophosphate are dissolved in an organic solvent, a metal reagent or a strong base or a Grignard reagent is slowly added respectively, and the perfluorophosphonate vinyl ether monomer is directly synthesized through a one-step method. According to the synthesis method disclosed by the invention, tedious steps such as protection and deprotection of unsaturated double bonds are avoided, the perfluorophosphonate vinyl ether monomer can be directly obtained through one-step reaction, the operation is simple and convenient, and the synthesis method has an important industrial application prospect. 本发明属于化工技术领域中的合成技术领域，具体涉及一种由全氟乙烯基醚卤化物#