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:
Dec. 08, 1998
Filed:
Jun. 30, 1997
Applicant:
Inventor:
Artur Hunds, Bonn, DE;
Assignee:
Huels Aktiengesellschaft, Marl, DE;
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
544319 ;
Abstract
The invention relates to a process for the preparation of 4,6-dihydroxypyrimidine by reacting malonate with formamide and an alkali metal alkoxide at elevated temperature. In this process, the malonate alone or simultaneously with all or some of the formamide is added in portions or continuously to the alkali metal alkoxide initially introduced as a solution or suspension in an alcohol alone or together with all, or the remainder, of the formamide.
Quick Actions:
Hunds, Artur. (1998). Process for the preparation of 4, 6- dihydroxypyrimidine (U.S. Patent No. 5847139). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5847139
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile