Process for the preparation of benzoyl halide and halosulfonylbe

Details Process for the preparation of benzoyl halide and halosulfonylbe Process for the preparation of benzoyl halide and halosulfonylbe

1978-07-10

1980-07-15

Killos, Paul J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260543F, 260544D, 260544S, C07C 5158, C07C 6310, C07C14338, C07C14340

Patent

active

042128196

ABSTRACT:
A process for the preparation of benzoyl halide and meta-halosulfonyl benzoyl halide comprises adding to sulfuric acid and reacting therewith a benzotrihalide compound characterized by the formula: ##STR1## wherein X is bromine or chlorine and Y is individually selected from the group consisting of fluorine, chlorine, bromine, iodine, alkyl, preferably of one to six carbon atoms, halosubstituted alkyl, preferably trichloromethyl or tribromomethyl, aryl, preferably phenyl, and hydrogen, with the proviso that at least one Y substituent at a meta position is hydrogen.

REFERENCES:
patent: 3290370 (1966-12-01), Weil et al.
patent: 3322822 (1967-05-01), Gelfand
patent: 4110373 (1978-08-01), Day
Chemical Abstract, vol. 29, 5090.sup.2 (1935).
Groggins, "Unit Processes in Organic Synthesis" p. 268 (1952).

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