Process for the preparation of pure hydrates of fluoral and of h

Details Process for the preparation of pure hydrates of fluoral and of h Process for the preparation of pure hydrates of fluoral and of h

1985-07-16

1987-02-10

Reamer, James H.

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

Organic compounds

Oxygen containing

568842, 568486, C07C 4500

Patent

active

046423869

ABSTRACT:
A process for preparing pure fluoral hydrate or hexafluoroacetone hydrate which comprises reacting a hemiacetal with the formula ##STR1## wherein R is hydrogen or CF.sub.3, with water in a distillation column, removing respectively the methanol or ethanol produced at the head of the column, and recovering at the bottom of the column the pure hydrate so produced.

REFERENCES:
patent: 2579021 (1951-12-01), Brezesinska et al.
patent: 2616929 (1953-11-01), Rosin
patent: 2848500 (1958-08-01), Funck
patent: 3492358 (1970-01-01), Hall
patent: 4467124 (1984-08-01), Kawai et al.
Guthrie, Can. J. Chem., vol. 53, pp. 898-906 (1975).
Middleton et al., J.A.C.S., vol. 86, pp. 4948-4952 (1964).

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