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. 21, 2003
Filed:
Jul. 20, 2001
Applicant:
Inventors:
Uwe Lischka, Frankfurt am Main, DE;
Dieter Hauk, Friedberg, DE;
Peter Rittmeyer, Sulbach/Ts., DE;
Ulrich Wietelmann, Friedrichsdorf, DE;
Assignee:
Chemetall GmbH, Frankfurt a.M, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ; C07D / ; C07D / ;
U.S. Cl.
CPC ...
C07D / ; C07D / ; C07D / ; C07D / ;
Abstract
The invention relates to a method of lithiating CH-acidic five-membered heterocycles whereby the five-membered heterocycle is reacted with metallic lithium in an ether-containing solvent in the presence of an H acceptor.
Lischka, Uwe. (2003). Method of lithiating five membered heterocycles (U.S. Patent No. 6509474). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6509474
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile