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. 01, 2021
Filed:
Oct. 25, 2017
Applicant:
Symrise Ag, Holzminden, DE;
Inventors:
Tom Brunzel, Rostock, DE;
Angela Köckritz, Berlin, DE;
Andreas Martin, Berlin, DE;
Diego A. Jaime Trevino, Holzminden, DE;
Assignee:
Symrise AG, Holzminden, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 45/34 (2006.01); B01J 23/00 (2006.01); B01J 31/00 (2006.01); B01J 23/44 (2006.01); B01J 31/22 (2006.01); C07C 49/587 (2006.01);
U.S. Cl.
CPC ...
C07C 45/34 (2013.01); B01J 23/44 (2013.01); B01J 31/2226 (2013.01); C07C 49/587 (2013.01); C07C 2601/18 (2017.05);
Abstract
A method for producing unsaturated macrocyclic monoketones comprising the following steps: (a) preparing macrocyclic dienes with a ring size of at least 9 carbon atoms; (b) contacting the starting materials from step (a) with (b1) a palladium(II) salt and/or a palladium(II) complex; and (b2) an oxidant; and (b3) a solvent; and optionally (b4) a ligand; and optionally (b5) a co-catalyst; and optionally (b6) an acid.