Process for the preparation of azo dyestuffs containing cyano gr

Details Process for the preparation of azo dyestuffs containing cyano gr Process for the preparation of azo dyestuffs containing cyano gr

1975-01-17

1976-07-06

Warren, Charles F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260205, 260206, 260207, 2602071, 2602075, 260465R, C09B 4300

Patent

active

039680991

ABSTRACT:
The invention relates to the preparation of ortho-cyano azo dyestuffs by conversion of azo dyestuffs of the formula ##EQU1## wherein A is an aromatic-carbocyclic radical,

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