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Title:
アミノイミダゾール化合物の製造方法
Document Type and Number:
Japanese Patent JP4261839
Kind Code:
B2
Abstract:

To provide a method for producing an aminoimidazole compound by which a high-purity white crystal of the aminoimidazole compound represented by formula (1) (wherein, R1is hydrogen atom, or a 1-4C alkyl, 6-10C aryl, heterocyclic or a 7-11C aralkyl group which may have a substituent) is produced, and which is applicable to industrial production.

This method for producing the aminoimidazole compound represented by formula (1) comprises an extraction step for extracting the aminoimidazole compound from an aqueous solution containing the aminoimidazole compound represented by formula (1) by using a first organic solvent to provide an extract, and a decoloration step for carrying out decoloration treatment by adding a decolorizer to the organic solvent solution of the aminoimidazole compound.

COPYRIGHT: (C)2004,JPO


Inventors:
Komatsu Fumiyoshi
Satoshi Oguchi
Yuichi Yamada
Application Number:
JP2002238435A
Publication Date:
April 30, 2009
Filing Date:
August 19, 2002
Export Citation:
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Assignee:
Nippon Soda Co., Ltd.
International Classes:
C07D233/90; B01D9/02; B01D11/04; C07B61/00
Domestic Patent References:
JP51001468A
JP52003062A
JP2002155059A
Other References:
社団法人日本化学会,実験化学ガイドブック,丸善株式会社,1992年,第3刷,PP.130-131
Attorney, Agent or Firm:
Haruhito Oishi