Preparation of 4,4,4-trifluoro-2-methyl-1-butene by the dehydroc

Details Preparation of 4,4,4-trifluoro-2-methyl-1-butene by the dehydroc Preparation of 4,4,4-trifluoro-2-methyl-1-butene by the dehydroc

1990-04-26

1991-07-16

Nielsen, Earl

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525409, 528402, 549563, C07D30308, C08G 6522

Patent

active

050326481

ABSTRACT:
The partially fluorinated alkene 4,4,4-trifluoro-2-methyl-1-butene is produced by the selective dehydrochlorination of 3-chloro-1,1,1-trifluoro-3-methylbutane in the presence of a suitable base at elevated temperatures. The alkene is converted to 1,2-epoxy-4,4,4-trifluoro-2-methylbutane which is polymerizable in the presence of an aluminum coordination catalyst. A copolymer can be made with epichlorohydrin.

REFERENCES:
patent: 3311570 (1967-03-01), Vandenberg
patent: 3388078 (1968-06-01), Evans et al.
patent: 3573330 (1971-03-01), Dear et al.
patent: 3720630 (1973-03-01), Pittman et al.
patent: 4563493 (1986-01-01), Fukui et al.
An Article by H. C. Brown and I. Moritani, J. Am. Chem. Soc., vol. 75, p. 4112, 1953.

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