Preparation of novel perfluorinated sulphonic acid fluorides

Details Preparation of novel perfluorinated sulphonic acid fluorides Preparation of novel perfluorinated sulphonic acid fluorides

1981-10-28

1983-10-25

Moyer, Donald B.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260543R, C07C14370

Patent

active

044118414

ABSTRACT:
Electrochemical fluorination of a thiophene-1,1-dioxide derivative of the formula ##STR1## produces the novel perfluorinated sulphonic acid fluoride of the formula ##STR2## in which X, Y and Z each independently is F, a perfluoroalkyl group having 1 to 8 C-atoms in which one or more CF.sub.2 groups may optionally be replaced by oxygen, the oxygen atoms being separated by at least one CF.sub.2 group, optionally perfluoroalkyl-substituted cycloperfluoroalkyl group having 5 to 12 C-atoms in which one or more CF.sub.2 groups may be replaced by oxygen, or

REFERENCES:
patent: 2219006 (1940-10-01), Delfs et al.
patent: 3623963 (1971-11-01), Voss et al.
patent: 3723512 (1973-03-01), Niederprum et al.
patent: 3821290 (1974-06-01), Auello et al.
Temple, S., Journal of Organic Chemistry, vol. 33, No. 1, 1968, pp. 344-346.

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