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:
Jul. 17, 2018
Filed:
Apr. 08, 2015
Applicant:
Basf SE, Ludwigshafen, DE;
Inventors:
Timon Stork, Bürstadt Bobstadt, DE;
Martine Dehn, Ludwigshafen, DE;
Klaus Ebel, Heddesheim, DE;
Karl Beck, Östringen, DE;
Axel Salden, Stuttgart, DE;
Ralf Pelzer, Fürstenberg, DE;
Assignee:
BASF SE, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 319/06 (2006.01); C07D 309/10 (2006.01); C07C 43/303 (2006.01); C07D 309/18 (2006.01); C11B 9/00 (2006.01);
U.S. Cl.
CPC ...
C07D 309/10 (2013.01); C07C 43/303 (2013.01); C07D 309/18 (2013.01); C07D 319/06 (2013.01); C11B 9/008 (2013.01);
Abstract
The present invention relates to a method for the production of 2-substituted 4-hydroxy-4-methyltetrahydropyrans from the acid-catalyzed reaction of 3-methylbut-3-ene-1-ol with an aldehyde, a stable odoriferous quality being achieved and avoiding off-odors that interfere with the odor sensation.