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:
May. 03, 2011
Filed:
Mar. 02, 2006
Applicants:
Günter Knaup, Bruchköbel, DE;
Milan Latinovic, Nidda, DE;
Inventors:
Günter Knaup, Bruchköbel, DE;
Milan Latinovic, Nidda, DE;
Assignee:
Evonik Degussa GmbH, Essen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 209/52 (2006.01); C07C 271/02 (2006.01); C07C 271/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention is aimed at a process for the preparation of compounds of the general formula (I). The objective process is in this case based on the Michael reaction of compounds of the general formula (III) with compounds of the general formula (IV), with subsequent hydrogenation and cyclization of the intermediates of the formula (II) obtained.