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. 24, 1980
Filed:
Dec. 13, 1978
Applicant:
Inventors:
Hermann Oediger, Cologne, DE;
Andreas Schulze, Cologne, DE;
Assignee:
Haarman & Reimer GmbH, Holzminden, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
2603 / ; 2602 / ; 2603264 ; 544109 ; 546245 ;
Abstract
Process for the preparation of piperonylidenecrotonic acids amides of the formula ##STR1## in which R.sub.1 and R.sub.2 have the meaning given in the disclosure wherein piperonal is reacted with crotonic acid amides of the formula ##STR2## in the presence of hydroxides of the formula
Oediger, Hermann. (1980). Process for the preparation of piperonylidenecrotonic acid amides (U.S. Patent No. 4209445). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4209445
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile