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:
Sep. 12, 1978
Filed:
May. 24, 1974
Pierre-Etienne Bost, Paris, FR;
Guy Lartigau, Rhone, FR;
Rhone-Poulenc S.A., Paris, FR;
Abstract
A process is provided for the preparation of aryl ketones by catalytic decomposition of tertiary hydroperoxides, in particular for the preparation of acetophenone from cumene hydroperoxide, said process comprising effecting the catalytic decomposition of a tertiary hydroperoxide of the formula: ##STR1## in which Ar represents a monovalent aromatic radical, the free valency of which is carried by a carbon atom belonging to an aromatic ring, and R.sup.1 and R.sup.2, which may be identical or different, each represents a monovalent aliphatic radical or R.sup.1 and R.sup.2 together form a divalent aliphatic radical, in a reaction medium comprising water, an inorganic or organic derivative of copper and a phenol, and at a temperature of from 50.degree. C to 150.degree. C.