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. 24, 2024
Filed:
Feb. 13, 2019
Basf SE, Ludwigshafen am Rhein, DE;
Mathias Schelwies, Ludwigshafen am Rhein, DE;
Wolfgang Siegel, Ludwigshafen am Rhein, DE;
Rocco Paciello, Ludwigshafen am Rhein, DE;
Andreas Keller, Ludwigshafen am Rhein, DE;
BASF SE, Ludwigshafen am Rhein, DE;
Abstract
The present invention relates to a method for isomerizing a 3-(Z)-unsaturated carboxylic acid of the formula 1-Z or a salt thereof, wherein Ris C-C-alkyl, C-C-alkenyl having 1, 2, 3 or more than 3 C—C double bonds, unsubstituted or substituted C-C-cycloalkyl, or unsubstituted or substituted aryl; Ris hydrogen or has one of the definitions specified for R; with the proviso that Rhas a higher priority than Rin accordance with IUPAC; to give a 3-(E)-unsaturated carboxylic acid of the formula I-E or a salt thereof, wherein the isomerization of the compound of the formula 1-Z is effected in the presence of an anhydride of an organic acid and a base or in the presence of a ketene of formula CRRC(0), wherein Rand Rare as defined in the claims and in the specification and a base. In particular, the present invention relates to a method for preparing compositions with increased content of (3E,7E)-homofarnesylic acid starting from compositions comprising (3Z,7E)- and (3E,7E)-homofarnesylic acid.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile