Bromination of unreactive olefins with bromine chloride

Details Bromination of unreactive olefins with bromine chloride Bromination of unreactive olefins with bromine chloride

1974-05-02

1978-04-18

Gantz, Delbert E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260651R, 260653, 260658R, C07C 2500

Patent

active

040851532

ABSTRACT:
Bromine chloride is contacted with a normally unreactive olefin such as 1,2-di, tri- or tetrahalo- ethylene or 1,2-di, tri- or tetraphenyl ethylene or 1-halo-2-phenyl ethylene or 1-halo-2-phenyl ethylene carrying in addition, one or more other halogen or phenyl substituents on the carbons of the double bond in a two-phase, aqueous-organic reaction medium containing a bromide salt dissolved in the aqueous phase to produce the dibrominated adduct of the olefin. By the process of the invention, tetrachloroethylene was brominated to give a 77% yield of 1,2-dibromotetrachloroethane.

REFERENCES:
patent: 2086473 (1937-07-01), Nafash
patent: 2124426 (1938-07-01), McKee
patent: 2374933 (1945-05-01), Harding
patent: 3271466 (1966-09-01), Peer
"Unit Processes In Organic Synthesis," Groggins, 5th Ed., (1958), pp. 206-207.

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