SYNTHESE DE COMPOSES PHOSPHONIQUES A CHAINE CHLOROFLUOREE. PARTIE II TELOMERISATION DE L'ALLYL ET DU VINYL PHOSPHONATE DE DIETHYLE

Abstract

The synthesis of compounds containing both a phosphonic end group and a chlorofluorinated chain is achieved by means of a redox reaction using cuprous chloride as catalyst. By a redox catalysis system monoadducts are obtained. The taxogens involved are diethyl vinylphosphonate and diethyl allylphosphonate. The telogens are CF₃[sbnd]CCl₃ and CCl₃[sbnd](CF₂[sbnd]CFCl) _n [sbnd]Cl. The resulting products contain a C[sbnd]P bond. Their structure has been determined by ¹H NMR. The hydrolysis of phosphonic esters is carried out with concentrated hydrochloric acid and leads to the corresponding acids and salts.