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:
Nov. 01, 1994
Filed:
Jan. 24, 1994
Applicant:
Inventors:
Assignee:
Development Center for Biotechnology, Taipei, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
562459 ;
Abstract
A process for the preparation of monohydrated sodium phenylpyruvate comprises reacting benzaldehyde with the stoichiometric quantity of hydantoin in the aqueous medium in the presence of a catalytic quantity of a primary or secondary amine at high temperature, treating the reaction mixture with an excess of sodium hydroxide at high temperature, adding sodium chloride to the sodium hydroxide-treated solution, acidifying the so obtained solution with concentrated hydrochloric acid, and washing the formed precipitate with methanol.
Chen, Jin-Tann. (1994). Process for the preparation of monohydrated sodium phenylpyruvate (U.S. Patent No. 5360927). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5360927
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile