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:
Apr. 20, 2004
Filed:
Apr. 15, 2002
Applicant:
Inventors:
Jörg Therre, Worms, DE;
Andreas Kramer, Bad Dürkheim, DE;
Andreas Weiper-Idelmann, Waldsee, DE;
Michael Schulik, Ludwigshafen, DE;
Regina Benfer, Altrip, DE;
Jürgen Schossig, Fussgönheim, DE;
Mathias Haake, Mannheim, DE;
Hans-Georg Göbbel, Mannheim, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 4/573 ;
U.S. Cl.
CPC ...
C07C 4/573 ;
Abstract
The present invention relates to a continuous process for the preparation of cinnamaldehyde or cinnamaldehyde derivatives by continuous reaction of benzaldehyde derivatives with alkanals in the presence of bases and optionally subsequent continuous hydrogenation in a circulation reactor in the presence of a suspension catalyst and hydrogen to give dihydrocinnamaldehyde derivatives.