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:
Apr. 19, 1988
Filed:
Sep. 27, 1985
Applicant:
Inventors:
Guy P Adrian, Givors, FR;
Sylvain G Garnier, Corbas - St Priest, FR;
Assignee:
Delalande S.A., Courbevoie, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
560056 ; 562467 ;
Abstract
The present invention provides a process for preparing 6-(lower)alkoxy-1-naphthoic acids, the corresponding esters and 5-halo substituted derivatives thereof. The process comprises reacting furoic acid with an alkoxyphenyl compound, followed by acid hydrolysis to form a mixture of alkoxy and hydroxy substituted naphthoic acids, subjecting said mixture to the action of an alkylating agent, and optionally further treating the alkylated product to another hydrolysis step or a halogenation step.