Process for dechlorinating organic compounds

Details Process for dechlorinating organic compounds Process for dechlorinating organic compounds

1981-08-12

1983-07-12

Love, Ethel G.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

570135, 570136, C07D31710

Patent

active

043932274

ABSTRACT:
Olefinic compounds are made from their vicinally chlorinated organic precursors by dechlorination with metallic magnesium in the presence of a mercury-based promoter, which may be a water-soluble mercury salt or metallic mercury, and of a catalytic amount of iodine. This process is particularly suitable for dechlorinating 4,5-dichloro-dioxolanes to the corresponding dioxoles. 4,5-Difluoro-2,2 bis(trifluoromethyl)-1,3-dioxole, which can be made by this process in a reproducible manner from 4,5-dichloro-4,5-difluoro-2,2-bis(trifluoromethyl)-1,3-dioxolane, is a useful monomer for making amorphous homopolymers and copolymers with tetrafluoroethylene, which are well suited for wire coating, finishes, and transparent glazing for corrosive service.

REFERENCES:
patent: 2918478 (1959-12-01), Newman
patent: 3865845 (1975-02-01), Resnick
Chem. Abstracts 61:5516a (1964).

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