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:
Aug. 24, 1976
Filed:
Mar. 31, 1975
Applicant:
Inventors:
Andrew David Batcho, Belleville, NJ (US);
Willy Leimgruber, Montclair, NJ (US);
Assignee:
Hoffmann-La Roche Inc., Nutley, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
2602 / ; 2602 / ; 2603191 ; 2605 / ;
Abstract
Ortho-nitrotoluenes are condensed with formamide acetals to yield the corresponding otho-nitro-.beta.-aminestyrenes which undergo cyclization upon reduction to yield indoles.