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

1977-10-03

1978-08-29

Schwartz, Gerald A.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260544D, C07C 5158, C07C 6310, C07C14338, C07C14340

Patent

active

041103734

ABSTRACT:
A process for the preparation of benzoyl halide and meta-halosulfonyl benzoyl halide comprises adding to oleum 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
Chemical Abstracts, vol. 29, column 5090.sup.2 (1935).

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