Title:
PURIFICATION OF DISUBSTITUTED NITROGUANIDINE
Document Type and Number:
Japanese Patent JP2001247558
Kind Code:
A
Abstract:
To provide a method for purification in preparation of disubstituted nitroguanidine expressed by formula (2), reducing load of purifying operation by crystallization, effective to obtain a high purity object.
The disubstituted nitroguanidine expressed by formula (2) (R1 is a 1-3C alkyl) by washing with an acidic aqueous solution before crystallizing purification of a reaction liquid obtained by decomposition reaction of a trisubstituted triazine expressed by formula (1). (R1 and R2 are each a 1-3C alkyl).
Inventors:
KAKIMOTO TAKESHI
URA DAISUKE
ENOMOTO MIKI
SATO KENICHI
URA DAISUKE
ENOMOTO MIKI
SATO KENICHI
Application Number:
JP2000064672A
Publication Date:
September 11, 2001
Filing Date:
March 09, 2000
Export Citation:
Assignee:
MITSUI CHEMICALS INC
International Classes:
C07D307/14; (IPC1-7): C07D307/14