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:
Feb. 17, 1998
Filed:
Mar. 27, 1997
Applicant:
Inventor:
Joan C Potenza, Rush, NY (US);
Assignee:
Eastman Kodak Company, Rochester, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ;
U.S. Cl.
CPC ...
5482624 ; 5483664 ; 5483671 ; 560 17 ; 562427 ; 562562 ; 564162 ;
Abstract
The invention provides a process for preparing a coupler compound having a thioether group at the coupling site comprising reacting in the presence of a base (a) a coupler compound having at least one hydrogen at the coupling site with (b) a mixed disulfide comprising either a tetrazole group or an oxadiazole group linked to one sulfur atom and an alkyl or aryl group linked to the other sulfur atom.