Method of preparing imine salt containing sulfuryl fluoride

摘要

The invention relates to a method for preparing a compound of formula ((III), the method comprises: R2 () R2 (- so2-nm) ------ ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- -----;M stands for monovalent or divalent cations; the method comprises the following steps of fluorination of compounds of formula (I) ("so2-nh" ("SO2 Ci"), wherein R1 stands for R1 'in any of the following: CI, F, F, CF3, chf2, ch2f, c2hf4, c2h2f3, c2h3f3, c2h3h3f2, c2h2h2, c4f2, c5c3f5, c5f11, c6f13, c7f15, R1, preferably c3f17 or c9f19, represents CI; has at least one fluorination agent; - step c) distills the composition obtained in step B.