METHOD OF PRODUCING FLUORINATED SULFONYL FLUORIDE Russian patent published in 2010 - IPC C07C303/22 C07C209/84 C07C303/02 C07C303/16 C07C309/84 

FIELD: chemistry.

SUBSTANCE: present invention relates to a method of producing fluorinated sulfonyl fluoride which is useful, for example as material for an ion-exchange resin, which involves oxidation of a compound of formula NCS-Q-CH₂OCO-R^BF1 (1a) using an oxidising agent which essentially contains a chlorine atom or bromine atom, resulting in obtaining a compound of formula X^ASO₂-Q-CH₂OCO-R^BF1 (2a), conversion of the X^ASO₂- group to a compound of formula (2a), to a FSO₂-group, resulting in formation of a compound of formula FSO₂-Q-CH₂OCO-R^BF1 (2aF), reacting the formula (2aF) compound with fluorine in liquid phase for perfluorination, resulting in obtaining a compound of formula FSO₂-Q^F-CF₂OCO-R^BF1 (3a), and further disintegration of this compound, where Q is a C_2-10 alkyl group, Q^F is a group which contains perfluorinated Q, and is a C_2-10 perfluoroalkylene group, X^A is a chlorine atom or bromine atom, R^BF1 is a C_1-20-perfluoroalkyl group or a C_1-20-perfluoroalkyl group which contains an ether oxygen atom. FSO₂-Q^F-COF (4a).

EFFECT: novel industrial method of producing an end product with low amount of wastes.

6 cl, 2 ex