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:
Sep. 11, 2012
Filed:
Aug. 08, 2008
Hiroshi Souda, Oita, JP;
Hiroshi Souda, Oita, JP;
Sumitomo Chemical Company, Limited, Tokyo, JP;
Abstract
A method for purifying an α-unsaturated amine compound represented by Formula (1), the method comprising a step of extracting with water the compound of Formula (1) from a crude product of the α-unsaturated amine compound represented by Formula (1), and a step of extracting with a pyridine solvent the α-unsaturated amine compound of Formula (1) from the aqueous solution containing the compound of Formula (1) obtained in the previous step to obtain a pyridine solvent solution of the compound of Formula (1): wherein Rrepresents a hydrogen atom, a Calkyl group, a halo Calkyl group, a Calkoxy-Calkyl group, a Caralkyl group, or an optionally substituted phenyl group, Rrepresents a hydrogen atom, a Calkyl group, or a Caralkyl group, and Rrepresents a hydrogen atom, a Calkyl group, a halo Calkyl group, a hydroxy Calkyl group, a Calkoxy-Calkyl group, Calkenyl group, or a Caralkyl group.