Preparation of 1-amino-cyan-amido-2,2-dicyanoethylene, sodium sa

Details Preparation of 1-amino-cyan-amido-2,2-dicyanoethylene, sodium sa Preparation of 1-amino-cyan-amido-2,2-dicyanoethylene, sodium sa

1993-07-26

1994-09-06

Brust, Joseph Paul

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

Organic compounds

Nitriles

558453, C07C25330

Patent

active

053449550

ABSTRACT:
1-Amino-1-cyanamido-2,2-dicyanoethylene, sodium salt is prepared by a process which comprises reacting malononitrile with sodium dicyanamide at an elevated temperature and in the presence of an aprotic, dipolar solvent. The subject compound is useful as an intermediate to prepare substituted pyrimidines.

REFERENCES:
patent: 4783468 (1988-11-01), Kristinsson et al.
The Chemistry of the Cyano Group; Edited by Zvi Rappoport (1970); pp. 546-547; Interscience Publishers.
Chem. Ber., 101; pp. 1232-1243; (1968); Allenstein, et al.
Chem. Ber., 101; pp. 1244-1249; (1968); Allenstein, et al.
J. Org. Chem.; 27; pp. 433-438; (1962); Trofimenko, et al.
J. Chem. Soc.; (1948); pp. 1630-1636; Curd, et al.

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