METHOD OF PRODUCING FLUOROALKANE SULPHOCHLORIDES Russian patent published in 2012 - IPC C07C309/80 C07C303/10 C07B45/02 

FIELD: chemistry.

SUBSTANCE: invention relates to processes of producing fluoroalkane sulphochlorides R_fCHX-SO₂Cl, where (R_f=F, perfluoroalkyl C_nF_{2n+1, n=1, …, 11}; X=F, H) and can be used in synthesis of pesticides, insecticides and other biologically active compounds. Use of the disclosed method enables to obtain fluoroalkane sulphochlorides R_fCHX-SO₂Cl, where (R_f=F, perfluoroalkyl C_nF_{2n+1, n=1, …, 11}; X=F, H) during reaction of a fluoro-substituted alkane with a mixture of Cl₂ and SO₂ under UV radiation, followed by distillation of the unrefined product. The initial material is compounds of general formula (R_f=F, perfluoroalkyl C_nF_{2n+1, n=1, …, 11}; X=F, H). The process of producing fluoroalkane sulphochlorides takes place at temperature 0-25°C in the medium of a CCl₄ solvent.

EFFECT: obtaining a pure product with high output (over 50%).

1 cl, 1 tbl, 2 ex