Fh. Wu et Bn. Huang, STUDIES ON SULFINATODEHALOGENATION .29. THE SULFINATODEHALOGENATION OF PRIMARY POLYFLUOROALKYL IODIDES AND BROMIDES BY SODIUM DISULFITE, Journal of fluorine chemistry, 67(3), 1994, pp. 233-234
Using DMF, acetonitrile and alcohols as cosolvents, both polyfluoroalk
yl iodides, such as Cl(CF2)nI (n = 4, 6, 8; 1a-c) and F(CF2)nI (n=6, 8
; ld, e), and polyfluoroalkyl bromides, such as Cl(CF2)6Br (3b) and F(
CF2)8Br (3e), react with sodium disulfite in neutral aqueous solution
to give the corresponding sulfinates Cl(CF2)nSO2Na (n = 4, 6, 8; 2a-c)
and F(CF2)nSO2Na (n = 6, 8; 2d, e) in good yield. In a similar manner
, CF3CCl3 (4a) reacted with sodium disulfite to give CF3CCl2SO2Na (5a)
.