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US 4,308,407 AGranted
Chemical process
AssigneeEthyl Corporation
InventorsBernard R. Meltsner, Joseph D. Odenweller
Life of this patent
Estimating the term…
Abstract
Phenols with a methyl group substituted on the phenolic benzene ring, such as 2,6-di-tert-butyl-p-cresol, can be produced by reacting a halomethyl group substituted on a phenol such as 2,6-di-tert-butyl-4-chloromethylphenol, with hydrogen in the presence of a hydrogenation catalyst, such as palladium.
Claims13
A process for converting a halomethyl phenol to a cresol, said process comprising contacting said halomethyl phenol with hydrogen in the presence of a hydrogenation catalyst at a pressure of from atmospheric to about 3000 psig and at a temperature of from about 25.degree. C. to about 300.degree. C.
Dependencies are inferred from the claim text.