Process for the preparation of cyanoazo dyestuffs

Details Process for the preparation of cyanoazo dyestuffs Process for the preparation of cyanoazo dyestuffs

1979-10-01

1981-05-26

Clingman, A. Lionel

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C10700, C09B 4300

Patent

active

042697700

ABSTRACT:
Ortho-cyanoazo dyestuffs are obtained in good yields and high purity by conversion of appropriate ortho-halogenoazo dyestuffs with complex metal cyanides of the formula

REFERENCES:
patent: 3876621 (1975-04-01), Hagen et al.
patent: 3978040 (1976-08-01), Gottschlich et al.

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