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. 27, 1977
Filed:
Mar. 26, 1975
Applicant:
Inventors:
Victor Marie Dupre, Louvres, FR;
Jacques Pierre Pechmeze, Paris, FR;
Robert Frederic Sureau, Enghien les Bains, FR;
Assignee:
Produits Chimiques Ugine Kuhlmann, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
548372 ;
Abstract
Compound of the formula: ##STR1## in which the nucleus A is unsubstituted or substituted by one or two nitro, amino, alkyl, alkoxy, chlorine or bromine and the alkyl and alkoxy each contain up to two carbon atoms and process for the preparation of such compounds which comprises diazotizing an aniline of the formula: ##STR2## in which the nucleus A is unsubstituted or substituted by one or two nitro, amino, alkyl, alkoxy, chlorine or bromine, the alkyl and alkoxy each containing up to two carbon atoms and cyclizing the diazo derivative obtained.