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. 10, 2009
Filed:
May. 17, 2002
Applicants:
Markus Grosse, Schwetzingen, DE;
Klaus Martin Weber, Ludwigshafen, DE;
Marco Thyes, Ludwigshafen, DE;
Peter Klein, Birkenheide, DE;
Elmar Vilsmaier, Otterbach, DE;
Inventors:
Markus Grosse, Schwetzingen, DE;
Klaus Martin Weber, Ludwigshafen, DE;
Marco Thyes, Ludwigshafen, DE;
Peter Klein, Birkenheide, DE;
Elmar Vilsmaier, Otterbach, DE;
Assignee:
Abbott GmbH & Co., KG, Wiesbaden, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 211/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a method for producing biperiden by reacting exo-1-(bi-cyclo[2.2.1]hept-5-en-2-yl)-3-piperidino-1-propanone with a phenylmagnesium compound. According to the invention, exo-1-(bi-cyclo[2.2.1]hept-5-en-2-yl)-3-piperidino-1-propanone can be obtained by reacting the exo-ether of enol silylene of formula (IV) with a compound of N-methylenepiperidinium.