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:
Jan. 31, 2006
Filed:
Apr. 25, 2003
Applicants:
Stefan Engel, Nieder-Olm, DE;
Michael Keil, Freinsheim, DE;
Christian Ott, Speyer, DE;
Michael Rack, Heidelberg, DE;
Inventors:
Stefan Engel, Nieder-Olm, DE;
Michael Keil, Freinsheim, DE;
Christian Ott, Speyer, DE;
Michael Rack, Heidelberg, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07C 253/30 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process is described for preparing 3-trifluoromethylphenyl 4-cyanobenzyl ketone by reacting a C–C-alkyl 3-trifluoromethylbenzoate with 4-tolunitrile in an aprotic polar solvent or an aprotic polar solvent mixture in the presence of at least an equimolar amount of a base which is selected from potassium alkoxides of primary C–C-alkanols.