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:
Mar. 29, 2011
Filed:
Aug. 17, 2006
Applicant:
Markus Nobis, Lyss, CH;
Inventor:
Markus Nobis, Lyss, CH;
Assignee:
Symrise GmbH & Co. KG, Holzminden, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 35/08 (2006.01); C07F 7/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a process for the preparation of a compound of the formula B having the following steps: provision of a compound of the formula A intramolecular reaction of the compound of the formula A in the presence of an aluminium siloxide of the formula (Ia) or (Ib).