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. 30, 1992
Filed:
Sep. 03, 1991
Applicant:
Inventors:
Masahiko Yamada, Kobe, JP;
Satomi Takahashi, Kobe, JP;
Assignee:
Kanegafuchi Kagaku Kogyo Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
548314 ;
Abstract
A process for preparing a 5-arylhydantoin having the formula (II): ##STR1## which comprises: reacting methyl 2-hydroxy-2-methoxyacetate, urea and an aryl compound having the formula (I): ##STR2## in the presence of an acid. According to the process, the 5-arylhydantoin which is a very effective intermediate for preparing D-arylglycines can be easily prepared from inexpensive raw materials in a high purity.
Quick Actions:
Yamada, Masahiko. (1992). Process for preparing 5-arylhydantoin (U.S. Patent No. 5126459). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5126459
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile