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:
Apr. 02, 2002
Filed:
Aug. 08, 2001
Applicant:
Inventor:
Rüdiger Schubart, Gladbach, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
C07D / ;
Abstract
This invention relates to a process for the selective preparation of cis-2,6-dimethylpiperazine by reacting (i) a diisopropanolamine mixture comprising compounds having the formulas HN(CH CH(OH)CH ) , HN(CH(CH )CH OH) , and HN(CH(CH )CH OH)(CH CH(OH)CH ) or (ii) 1,2-diaminopropane with ammonia and hydrogen in the presence of a hydrogenation catalyst.
Quick Actions:
Schubart, Rüdiger. (2002). Process for preparing cis-2,6-dimethylpiperazine (U.S. Patent No. 6365741). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6365741
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile