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:
Jun. 10, 1997
Filed:
Aug. 24, 1995
Jean-Roger Desmurs, St-Symphorien D'Ozon, FR;
Jacques Dubac, Pechbusque, FR;
Mireille Labrouillere, Agen, FR;
Andre Laporterie, Pompertuzat, FR;
Rhone-Poulenc Chimie, Courbevoie Cedex, FR;
Abstract
Aromatic ethers/phenols are acylated, characteristically into hydroxy- and/or alkoxyaromatic alkylketones, and in particular, are acylated in the para-position relative to an alkoxy substituent borne by the aromatic nucleus, by reacting/condensing same with an acylation agent, for example acetyl chloride or acetic anhydride, in the presence of a catalytically effective amount of a bismuth halide, or a precursor compound that generates, in situ, a bismuth halide.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile