Process for the manufacture of perfluoralkyl iodides

Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal

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260658C, C07C 1907, C07C 1909

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active

040679160

ABSTRACT:
A process is provided for the manufacture of fluoralkyliodides of high molecular weight from the corresponding perfluoralkyliodides of lower molecular weight. In this process a perfluoralkyliodide is telomerized with a perfluorethylene or a perfluorpropylene each optionally containing at most one chlorine atom, and an amine, in the presence of a metal salt of a metal of groups IIIa, IIIb to VIIIb of the 4th to 6th period or of groups Ia or IIa of the Period Table as a catalyst at 0.degree. to 350.degree. C and under a pressure from 0 to 200 atmospheres (gauge).
The so-obtained products are useful as intermediates for the manufacture of carboxylic acids or alcohols or for reaction with non-fluoro compounds. The products thus obtained may be used as agents for conferring oleophobic or hydrophobic proerties, as soil release agents or also as hydraulic fluids.

REFERENCES:
patent: 3083238 (1963-03-01), Hauptschein et al.
patent: 3213149 (1965-10-01), Takahashi et al.
patent: 3283020 (1966-11-01), Parsons
patent: 3404189 (1968-10-01), Blochl
patent: 3454657 (1969-07-01), Decker et al.
patent: 3557224 (1971-01-01), Jaeger
patent: 3631115 (1971-12-01), Nakagawa et al.
Asscher et al., J. Chem. Soc. 1961, 2261-2264.

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