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:
Jun. 01, 1982
Filed:
Sep. 06, 1977
Applicant:
Inventors:
Assignee:
Deutsche Gold -und Silber-Scheideanstalt Vormals Roessler, Frankfurt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ;
U.S. Cl.
CPC ...
546181 ; 546152 ; 546112 ; 546250 ;
Abstract
2,3-Cycloalkenopyridines of the formula ##STR1## are prepared by reacting a cycloalkanone or cycloalkenone of the formula ##STR2## with an oxo compound of the formula ##STR3## where Z is an aliphatic carbon chain which is unsubstituted or has hydrocarbon substituents and R.sub.1, R.sub.2 and R.sub.3 are hydrogen or lower alkyl groups and ammonia in the presence of a dehydrating and dehydrogenating catalyst at a temperature of about 250.degree. to 550.degree. C.