Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1975-05-08
1978-01-10
Davis, C.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
260658C, C07C 1907, C07C 1909
Patent
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.
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Asscher et al., J. Chem. Soc. 1961, 2261-2264.
Almaula Prabodh I.
Ciba-Geigy AG
Davis C.
Roberts Robert McC.
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