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. 24, 1981
Filed:
Jan. 12, 1979
Applicant:
Inventor:
Paul G Gassman, St. Paul, MN (US);
Assignee:
Regents of the University of Minnesota, Minneapolis, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
2603 / ;
Abstract
An aniline is converted to a 3-lower hydrocarbonthiooxindole by processes already known in the art and then air oxidized in an inert liquid vehicle in the presence of a base. The inert liquid vehicle advantageously is aprotic and the base is non-nucleophilic. Also, the aprotic liquid vehicle is desirably solvent for the starting 3-lower hydrocarbonthiooxindole and the non-nucleophilic base.