Process for the preparation of 4,4'-dinitrodiphenylamine

Details Process for the preparation of 4,4'-dinitrodiphenylamine Process for the preparation of 4,4'-dinitrodiphenylamine

1989-11-16

1991-02-05

Raymond, Richard L.

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

Organic compounds

Amino nitrogen containing

560339, 560350, 564433, C07C20900

Patent

active

049906739

ABSTRACT:
Process for the preparation of 4,4'-dinitrodiphenylamine which comprises reacting 1 mole of 4-halonitrobenzene with about 1 to about 3 moles of an alkali metal cyanate in the presence of about 0.5 to about 5 moles of water in dimethylsulfoxide at temperatures of about 150.degree. to about 170.degree. C.

REFERENCES:
patent: 3055940 (1962-09-01), Merz
patent: 4670596 (1987-06-01), Dreikorn et al.
patent: 4709087 (1987-11-01), Tkatchenko et al.
Gorvin, J. Chem. Soc. Perkin Trans. 1, 1988, pp. 1331-1335 (Chemical Abstracts, vol. 110 (1): 7744u).
McMurry, Organic Chemistry, 1984, p. 1159.
Gnehm, R. et al, Z. Angewandte Chemie 12: 1051-1055 (1899).

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