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:
Jul. 02, 1996
Filed:
Jun. 06, 1995
Applicant:
Inventors:
Virgil J Lee, La Verne, CA (US);
Ying Wang, Diamond Bar, CA (US);
Carmen Taran, Glendora, CA (US);
Matthew L Marocco, III, Santa Ana, CA (US);
Assignee:
Hitachi Chemical Company, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
546167 ;
Abstract
Methods are provided for preparing bis-quinoline compounds, which include the steps of (1) condensing an aromatic 2-amino carbonyl compound and a methylene ketone compound to form an intermediate comprising a substituted quinoline having one chloro, one bromo, or one iodo substituent, followed by (2) reductive coupling of the quinoline, without its prior isolation or purification, using a transition metal catalyst, to thereby form the bis-quinoline compound.