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:
Oct. 07, 2008
Filed:
May. 24, 2005
Makoto Momomoto, Osaka, JP;
Yoshiaki Suzuki, Osaka, JP;
Minoru Yamagami, Osaka, JP;
Keisuke Matsumoto, Osaka, JP;
Yusuke Sakaguchi, Osaka, JP;
Makoto Momomoto, Osaka, JP;
Yoshiaki Suzuki, Osaka, JP;
Minoru Yamagami, Osaka, JP;
Keisuke Matsumoto, Osaka, JP;
Yusuke Sakaguchi, Osaka, JP;
Daito Chemix Corporation, Osaka, JP;
Abstract
The present invention is to provide a safe process for the production of tert-butyl N-(2-bromoethyl)carbamate where operation is simple, handling of the final product is easy, working efficiency is good and yield is high. A process for the production of tert-butyl N-(2-bromoethyl)carbamate, characterized in that, 2-bromoethylamine or a salt thereof is made to react with an agent for introducing a tert-butoxy carbonyl group in a water-soluble solvent in the presence of sodium hydroxide and then water as a crystallizing solvent and seed crystals are added to the reaction solution whereby crystals of tert-butyl N-(2-bromoethyl)carbamate are separated out therefrom.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile