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. 26, 1998
Filed:
Apr. 22, 1997
Applicant:
Inventors:
Emanuel Vogel, Koln, DE;
Reiner Deponte, Cologne, DE;
Assignee:
Cytopharm, Inc., Menlo Park, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ;
U.S. Cl.
CPC ...
540145 ; 548518 ;
Abstract
Coupling two moles of a 2-halopyrrole in the presence of an inert aromatic solvent and a catalytically effective amount of a substantially pure copper catalyst provides high yields of the corresponding bipyrrole.
Vogel, Emanuel. (1998). High-yielding ullmann reaction for the preparation of bipyrroles (U.S. Patent No. 5756724). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5756724
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile