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. 05, 1985
Filed:
Dec. 24, 1984
Applicant:
Inventors:
Serge Ratton, La Verpilliere, FR;
Jean-Luc Bougeois, Sainte-Foy les Lyon, FR;
Assignee:
Rhone-Poulenc Specialites Chimiques, Courbevoie, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
568433 ; 568442 ;
Abstract
Substituted bromobenzaldehydes, e.g., 5-bromovanillin, are facilely prepared without conjoint production of HBr, by brominating the corresponding benzaldehydes with a brominating agent couple which comprises hydrobromic acid and a bromide ion oxidizer.