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. 02, 2025
Filed:
May. 20, 2021
Applicant:
Basf SE, Ludwigshafen, DE;
Inventors:
Florian Vogt, Ludwigshafen, DE;
Kailaskumar Borate, Navi Mumbai, IN;
Bernd Wolf, Ludwigshafen, DE;
Joachim Gebhardt, Ludwigshafen, DE;
Guillaume Michel Jacques Garivet, Ludwigshafen, DE;
Harish Shinde, Navi Mumbai, IN;
Roland Goetz, Ludwigshafen, DE;
Assignee:
BASF SE, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 271/06 (2006.01); C07C 259/18 (2006.01); C12P 13/00 (2006.01);
U.S. Cl.
CPC ...
C07C 259/18 (2013.01); C07D 271/06 (2013.01); C12P 13/002 (2013.01);
Abstract
The present invention relates to a process for the preparation of substituted 4-(N′-hydroxy-carbamimidoyl)benzoic acids, which can be obtained by nitrilase catalyzed hydration of substituted terephthalonitriles of formula (II) in an aqueous medium to afford (ammonium) 4-cyanobenzoic acids (IIa). The hydration is followed by treatment of the aqueous reaction medium with hydroxylamine or a salt thereof to afford amidoximes (I).