Process for isolating diarylguanidines

Details Process for isolating diarylguanidines Process for isolating diarylguanidines

1987-03-16

1988-11-08

Reamer, James H.

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

564238, C07C12800

Patent

active

047835532

ABSTRACT:
Diarylguanidines can be isolated from the crude melt from the reaction of arylamines and cyanogen chloride in excellent quality and yield by dissolving the hot melt in water, extracting this solution with at least one polar, water-insoluble, organic compound, and precipitating from the purified aqueous solution the diarylguanidine by adding alkali metal hydroxide.

REFERENCES:
patent: 1727093 (1929-09-01), Barsky
patent: 1884509 (1932-10-01), Bailey et al.
patent: 1897220 (1933-02-01), Horst et al.
Chemical Abstracts, vol. 95, No. 9, Aug. 31, 1981, p. 735, rechte Spalte, Zusammenfassungsnr. 80430q, Columbus, Ohio, U.S.; J. Legocki et al.: "Studies of Diphenylguanidine Production by Reaction of Cyanogen Chloride with Aniline".

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