Preparation of halophenylvinylbenzyl ethers

Details Preparation of halophenylvinylbenzyl ethers Preparation of halophenylvinylbenzyl ethers

1978-07-28

1979-12-25

Helfin, Bernard

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

Organic compounds

Oxygen containing

C07C 4104

Patent

active

041806808

ABSTRACT:
The title compounds are prepared in a process comprising contacting an alkali metal or alkaline earth metal salt of a tetra- or pentahalophenol with a vinylbenzyl chloride in a liquid, aqueous solvent containing from about 68 to about 90 weight percent of a C.sub.1 or C.sub.2 alkanol in a remaining amount of water. The contact of the aforementioned reactants occurs at a pH from about 7 to about 11 and at a temperature less than about 65.degree. C. As an example, sodium pentachlorophenoxide can be reacted with vinylbenzyl chloride by this process in an aqueous methanol solvent (with about 20 weight percent water) to yield about 90 percent pentachlorophenylvinylbenzyl ether, based on vinylbenzyl chloride.

REFERENCES:
patent: 2121723 (1938-06-01), Bass et al.
patent: 2121724 (1938-06-01), Bass et al.
patent: 2392733 (1946-01-01), Goddin et al.
patent: 3058953 (1962-10-01), McMaster
Krauch et al., Organic Name Reactions (1964) p. 491.

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