Process for preparing 2,2-diphenylhexafluoropropanes

Details Process for preparing 2,2-diphenylhexafluoropropanes Process for preparing 2,2-diphenylhexafluoropropanes

1996-11-27

1998-06-09

Ivy, C. Warren

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

Organic compounds

Halogen containing

570144, C07C 1908

Patent

active

057636990

ABSTRACT:
2,2-diphenylhexafluoropropanes are prepared by condensation reaction of benzene or benzenes substituted with a halogen atom or atoms, a lower alkyl group or groups or a hydroxyl group or groups with hexafluoroacetone in the presence of trifluoromethane sulfonic acid. Among the 2,2-diphenylhexafluoropropanes, 2,2-diphenylhexafluoropropane and 2,2-bis(p-chlorophenyl)hexafluoropropane are novel compounds.

REFERENCES:
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patent: 4307024 (1981-12-01), Kray et al.
patent: 4358624 (1982-11-01), Mark et al.
patent: 4649207 (1987-03-01), Lau et al.
patent: 4758380 (1988-07-01), Alston et al.
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patent: 5288908 (1994-02-01), Lau et al.
Chemical Abstracts, vol. 97, No. 22, Nov. 29, 1992, pp. 2381-2393, Abstract No. 182895.
Syntheses of Polymer Intermediates Containing The Hexafluoroisopropylidene Group via Functionalization of 2,2-Diphenylhexafluoropropane, K.S.Y. Lau et al. (1982).
Izv. Akad. Nauk. USSR Ser. Khim. No. 3, p. 614, 1967.
Ibid. No. 4, p. 683, 1960.

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