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US 4,046,656 AGranted
Photochlorination process for methyl aromatic compounds
AssigneeThe Dow Chemical Company
InventorsRalph A. Davis, R. Garth Pews
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Abstract
The rate of photochlorination of methyl aromatic compounds, such as toluene, cresol, xylene, toluenesulfonyl chloride, methylnaphthalene, diphenylmethane, etc., is increased when carried out in the presence of bromine.
Claims15
A process for the photochlorination of a methyl aromatic reactant to form an .alpha.-chloro-substituted aromatic product, in which process each benzylic hydrogen of the reactant is replaced by a chlorine atom, comprising contacting said reactant with chlorine in the presence of ultraviolet radiation and an accelerating amount of bromine.
Dependencies are inferred from the claim text.