Title:
ISOLATION OF DIARYLGUANIDINE
Document Type and Number:
Japanese Patent JPS62148463
Kind Code:
A
Abstract:
Diaryl guanidines can be obtained in a high degree of purity and in high yields from the crude melt obtained from the reaction of arylamines and cyanogen chloride by dissolving the hot melt in water, extracting this solution with a mixture of at least one water insoluble, apolar hydrocarbon and at least one polar organic compound and precipitating the diaryl guanidine from the purified, aqueous solution by the addition of alkali metal hydroxide.
Inventors:
NIERTH ALFRED (DE)
SCHERHAG BERNHARD (DE)
PREUSS REINHARD (DE)
KLOSE HEINZ (DE)
SABIA SALVATORE (DE)
SCHERHAG BERNHARD (DE)
PREUSS REINHARD (DE)
KLOSE HEINZ (DE)
SABIA SALVATORE (DE)
Application Number:
JP29902486A
Publication Date:
July 02, 1987
Filing Date:
December 17, 1986
Export Citation:
Assignee:
BAYER AG
International Classes:
C07C279/18; C07C67/00; C07C239/00; C07C277/08; (IPC1-7): C07C129/12
Attorney, Agent or Firm:
Heikichi Odashima
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