Preparation of fluorsulfonyl benzyl phosphonic acid esters and new fluorsulfonyl benzyl phosphonic acid esters

摘要

1. Process for the preparation of compounds of the formula see diagramm : EP0033827,P5,F1 wherein Y denotes hydrogen, halogen, nitro, CF3 , alkyl, cycloalkyl, aralkyl, aryl, hetaryl, acyl, acylamino or SO2 F, Z denotes hydrogen, alkyl, halogen or - together with Y - a fused-on carbocyclic or heterocyclic aromatic radical and R denotes alkyl, characterized in that compounds of the formula see diagramm : EP0033827,P5,F2 wherein X represents halogen, are reacted with phosphites of the formula P(OR)3 .