Process for the production of guanidine derivatives

Details Process for the production of guanidine derivatives Process for the production of guanidine derivatives

1992-11-25

1994-01-04

Hollrah, Glennon H.

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

Organic compounds

Amino nitrogen containing

C07C27702

Patent

active

052761860

ABSTRACT:
A process for the production of phenylguanidine carbonate and hydrogencarbonate by reacting aqueous cyanamide with aniline hydrochloride within a specified pH range, combining the reaction mixture with an alkali metal carbonate or hydrogencarbonate, and separating the crystalline product.

REFERENCES:
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patent: 3976643 (1976-08-01), Diamond et al.
patent: 4906778 (1990-03-01), Schaffhausen
McKee, R., "On the Oxygen Ethers of the Ureas, etc." Amer. Chem. J., 26, No. 3, p. 221 (1901).
Kampf, A., "Uber Darstellung Aromatisch Substituirter Guanidine Aus Cyanamide," Chem. Ber. (37), pp. 1681-1684 (1904).
Houben--Weyl, 8, pp. 180-181 (1952).
Weiss, Corporate Brochure, p. 97 (1978) SKW Trostberg Ag.
M. G. Ivanov, "Kinetics and mechanism" pp. 681-684. Kinetika i Kataliz, vol. 9, No. 3 (1968).
Journal of the American Chemical Society, vol. 51, pp. 476-479, GBL Smith (1929).

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