Title:
METHOD FOR MANUFACTURING 4,5-DIALKOXYCARBONYL OR 4,5- DICYANOIMIDAZOLE
Document Type and Number:
Japanese Patent JP2003246779
Kind Code:
A
Abstract:
To provide a method for manufacturing a compound shown in general formula (V) at a high purity by continuous reaction without inserting a purification process on the way in the process (1) to (3) shown below and to provide a manufacturing method in which the amount of impurities generated in processes (1) and (2) is restrained as small as possible.
The reaction in process (1) is performed in the solvent of 50 to 300 ml to 1 mole of 1,2-diaminomalenonitrile under an ordinary pressure.
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Inventors:
OSAWA MICHIYO
Application Number:
JP2002367770A
Publication Date:
September 02, 2003
Filing Date:
December 19, 2002
Export Citation:
Assignee:
NIPPON SODA CO
SANKYO CO
SANKYO CO
International Classes:
C07C257/06; C07D233/90; (IPC1-7): C07D233/90; C07C257/06
Attorney, Agent or Firm:
Haruhito Oishi