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:
Nov. 29, 1983
Filed:
Jul. 14, 1981
Applicant:
Inventors:
Georges Cordier, Francheville, FR;
Pierre Fouilloux, Caluire, FR;
Assignee:
Rhone-Poulenc Agrochimie, Lyons, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
564412 ; 564305 ; 564309 ; 564315 ; 564330 ; 564417 ;
Abstract
Process for the selective preparation of meta-chloroanilines. It is carried out by the hydrodechlorination of polychloroanilines or polychloronitrobenzenes with hydrogen, in the liquid phase, under the action of heat, at atmospheric pressure or under pressure, in the presence of a noble metal, in an anhydrous organic medium and in the presence of a Lewis acid. These meta-chloroanilines are intermediates especially for active plant-protection substances.