The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 25, 1989
Filed:
Nov. 04, 1987
Applicant:
Inventors:
Assignee:
Kureha Kagaku Kogyo K.K., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
568815 ;
Abstract
An aromatic compound selected from benzene and biphenyl compounds containing at least one isopropyl group is oxidized to convert at least one of the at least one isopropyl group into a 2-hydroxy-2-propyl group. The oxidation of the aromatic compound is effected with molecular oxygen in the presence of an aqueous alkali solution in an oxidative reaction vessel made of nickel at parts thereof where the vessel comes into contact with a reaction mixture. In particular, the above process suppresses the formation of by-products and permits long-term oxidation on an industrial scale.