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:
Jun. 13, 2023
Filed:
Aug. 16, 2019
Applicant:
Basf SE, Ludwigshafen am Rhein, DE;
Inventors:
Melanie Weingarten, Ludwigshafen am Rhein, DE;
Wolfgang Siegel, Ludwigshafen am Rhein, DE;
Michael Puhl, Ludwigshafen am Rhein, DE;
Assignee:
BASF SE, Ludwigshafen am Rhein, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 311/72 (2006.01);
U.S. Cl.
CPC ...
C07D 311/72 (2013.01);
Abstract
The present invention relates to a process for the production of chromanol derivatives, more specifically to a process for preparing a compound of the general formula I wherein R, Rand Rindependently of each other are selected from hydrogen and methyl, Ris selected from C--C-alkyl, and X is selected from C-C-alkyl and C-C-alkenyl.