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. 22, 2001
Filed:
Aug. 31, 1999
Applicant:
Inventors:
Christoph Gürtler, Köln, DE;
Manfred Jautelat, Burscheid, DE;
Helmut Greiving, Leverkusen, DE;
Herbert Hugl, Gladbach, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
C07C / ; C07C / ;
Abstract
Using the process according to the invention, it is possible to provide, with few reaction steps, a novel route to &agr;-substituted ring systems which optionally have further substituents.