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. 03, 2014
Filed:
May. 22, 2009
Applicants:
Koichi Fukui, Kashima, JP;
Takeshi Namekata, Kashima, JP;
Ikuo Ito, Kashima, JP;
Inventors:
Assignee:
Air Water Inc., Sapporo-shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 211/70 (2006.01);
U.S. Cl.
CPC ...
Abstract
Provided is a process for producing a high-purity pyridine compound from a crude pyridine compound that contains a diazine compound as an impurity, the method including a reaction step of reacting the crude pyridine compound with an aluminum hydride compound, and a distillation step of distilling the product obtained from the reaction step. The aluminum hydride compound preferably contains one or more compounds selected from lithium aluminum hydride and sodium aluminum hydride.