Process for the production of arylsulfonyl halides

Details Process for the production of arylsulfonyl halides Process for the production of arylsulfonyl halides

1986-01-31

1987-07-07

Trousof, Natalie

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C14370

Patent

active

046786120

ABSTRACT:
There is disclosed a process for the production of arylsulfonyl halides, e.g., benzenesulfonyl chloride. The disclosed process adds a phosphorus-containing additive, e.g., phosphorous acid, before the reaction of an arylsulfonic acid with a sulfur halide and a halogen. The phosphorus-containing additive reduces the thermal instability of the residue remaining after distillation of the arylsulfonyl halide.

REFERENCES:
patent: 3644515 (1972-02-01), Suzuki
patent: 3795705 (1974-03-01), Chan
patent: 3845194 (1974-10-01), Somlo et al.
patent: 4105692 (1978-08-01), Blank
Derwent Abstract 44,761 D25 *J6 6046-860 (JP 123,124 issued Apr. 28, 1981).

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