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:
Jan. 04, 1977
Filed:
Jul. 22, 1975
Applicant:
Inventors:
Gerhard Groegler, Leverkusen, DT;
Gerhard Dankert, Cologne, DT;
Klaus Recker, Cologne, DT;
Josef Backes, Dormagen, DT;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
2602 / ; 2605 / ; 2604 / ; 2604 / ; 2605 / ; 2605 / ;
Abstract
1-SUBSTITUTED 2-METHYL-TETRAHYDROPYRIMIDINES ARE PREPARED BY REACTING AN N-substituted propylene diamine with an acetoacetic acid ester or amine at a temperature of from 0.degree. to 80.degree. C and removing the water produced in the reaction at a temperature of from 0.degree. to 80.degree. C.