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:
Dec. 16, 2003
Filed:
Feb. 24, 2003
Applicant:
Inventor:
Lelia Cosimbescu, Rochester, NY (US);
Assignee:
Eastman Kodak Company, Rochester, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
C07D / ;
Abstract
Disclosed is a process for forming a N,N′-diarylquinacridone compound comprising the step of reacting a N,N′-unsubstituted quinacridone compound with a haloaryl compound in the presence of a metal or metal compound to arylate the N and N′ positions and form the corresponding N,N′-diarylquinacridone compound. The process is versatile and provides high yields and purity for the synthesis of N,N′-diarylquinacridone compounds.