Process for reacting a perfluoroalkl iodide with an olefinic com

Details Process for reacting a perfluoroalkl iodide with an olefinic com Process for reacting a perfluoroalkl iodide with an olefinic com

1995-04-12

1996-12-17

Killos, Paul J.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acids and salts thereof

562588, 562595, 570135, C07C 59295

Patent

active

055855172

ABSTRACT:
A novel process is described for reacting a perfluoroalkyl iodide with an olefinic compound, which comprises carrying out a free-radical addition reaction of the perfluoroalkyl iodide to the olefin in the presence of azoic or peroxy initiator and a water-soluble salt selected from the group consisting of sulfites, bisulfites, metabisulfites and dithionites. The adducts are obtained in high yield and purity and are useful for the preparation of oil- and water repellent products for use on paper, textiles, metal, wood and the like, or as precursors for fluorinated surfactants.

REFERENCES:
patent: 3257407 (1966-06-01), Brace
patent: 4058573 (1977-11-01), Knell
patent: 4387254 (1983-06-01), Commeyras
Journal of Fluorine Chemistry, 58(1992) pp. 1-8, Huang, "Perfluoroalkylation initiated with sodium dithionite and related systems".
Chem. Abst 116(9), 82914b (1992).
Chem. Abst. 115(1), 8053h (1991).
Chem. Abst. 106(11), 83935q (1987).

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