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:
Aug. 20, 1985
Filed:
Oct. 07, 1983
Patrice P Deschamps, Aix en Provence, FR;
Roger Gallo, Bouc Bel Air, FR;
Henri Grangette, Lyons, FR;
Elf France, Paris, FR;
Abstract
A process for the preparation of beta-disubstituted monocarboxylic acids derived from tertiary acyclic, monocyclic or bicyclic hydrocarbons. The process consists in reacting said hydrocarbons with vinylidene chloride and either a functional compound where the molecule includes a tertiary carbon atom bonded to the heteroatom of a functional group such as a tertiary alcohol, an ether, or a tertiary halide or an alkene, in the presence of a concentrated protonic acid. The reaction can be carried out in the presence of a catalyst of the Lewis acid type and particularly BF.sub.3. These acids are useful as synthesis intermediates and as additives for oils and lubricants.