Back to results
US 4,304,949 AGranted
Synthesis of ortho-methyldiphenylmethane
AssigneeAmerican Cyanamid Company
InventorsArnold Zweig, Robert G. Fischer
Life of this patent
Estimating the term…
Abstract
A process for the preparation of ortho-methyldiphenylmethane, a compound useful as an intermediate in the synthesis of anthraquinone, using liquid hydrogen fluoride to catalyze the alkylation of benzene with .alpha.-chloro-o-xylene at temperatures from about -10.degree. C. to 10.degree. C.
Claims8
A process for preparing ortho-methyldiphenylmethane which comprises reacting a mixture of benzene and .alpha.-chloro-o-xylene in the presence of a catalytically effective amount of liquid hydrogen fluoride at a temperature from about -10.degree. C. to 10.degree. C.
Dependencies are inferred from the claim text.