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:
Dec. 15, 1992
Filed:
Feb. 04, 1991
Applicant:
Inventor:
Rolf Hirsenkorn, Grosshesselohe, DE;
Assignee:
Consortium for elektrochemische Industrie GmbH, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
560 64 ; 560 70 ; 549328 ;
Abstract
Process for the preparation of .beta.-resorcylic acid derivatives of the general formula ##STR1## in which R, R.sup.2 and R.sup.3 can be identical or different and denote a hydrogen atom or an alkyl radical and R.sup.1 and R.sup.4 can be identical or different and denote an alkyl radical, by reaction of a diketone with .beta.-ketocarboxylic acid derivatives in the presence of an alkaline earth metal compound. The derivatives are useful as fragrances, or in perfumes.