Process for the preparation of hexafluoroacetone and direct use

Details Process for the preparation of hexafluoroacetone and direct use Process for the preparation of hexafluoroacetone and direct use

1981-12-09

1983-08-23

Reamer, James H.

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

Organic compounds

Oxygen containing

568728, 570142, C07C 4558

Patent

active

044005466

ABSTRACT:
Hexafluoroacetone is prepared by a rearrangement of hexafluoropropene epoxide at an elevated temperature in the presence of hydrogen fluoride as a catalyst and, if appropriate, also as a solvent. In many cases the solution of hexafluoroacetone in hydrogen fluoride obtained in this process can be directly employed without further working-up or purification in further reactions of hexafluoroacetone, for example with phenol and/or o-cresol.

REFERENCES:
patent: 3213134 (1965-10-01), Morin
patent: 3321515 (1967-05-01), Moore et al.
patent: 3385904 (1968-05-01), Pavlik
patent: 3391119 (1968-07-01), Anderson
patent: 3787489 (1974-01-01), Antonini et al.
patent: 4238416 (1980-12-01), Tohzuka et al.
Knunyants et al., I52 Akad Nawk SSSR, Ended, vol. 4, pp. 647-653 (1960).
Chem. Abstracts No. 108144x, vol. 67, p. 10180 (1967).

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