Production of difluoroethanol

Details Production of difluoroethanol Production of difluoroethanol

2011-03-08

2011-03-08

Witherspoon, Sikarl A (Department: 1621)

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

Organic compounds

Oxygen containing

C568S861000

Reexamination Certificate

active

07902409

ABSTRACT:
Difluoroethanol is produced by hydrogenation, in the presence of an effective amount of a catalyst containing at least one element of Group VIII of the Periodic Table deposited onto a solid, acidic mineral support, of an acetyl halide having the following formula (I), in which formula X is a halogen atom other than a fluorine atom:

REFERENCES:
patent: 1224971 (2002-07-01), None
patent: 61268639 (1987-04-01), None
Henne et al., “Acidity of Trifluorinated Alcohols and Saponification Rates of their Acetates”, Journal of the American Chemical Society, Mar. 1962, pp. 1426-1428. vol. 74.
International Search Report corresponding to PCT/FR 2006/002780.

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