Polyazo dyes and intermediates therefor

Details Polyazo dyes and intermediates therefor Polyazo dyes and intermediates therefor

C - Chemistry, Metallurgy

09

B

260/156, 260/503

C09B 33/24 (2006.01) C07C 317/36 (2006.01) C07C 323/66 (2006.01) C09B 33/02 (2006.01) C09B 35/50 (2006.01) C09B 45/24 (2006.01) D06P 3/32 (2006.01)

Patent

CA 1327792

Abstract of the Disclosure: Polyazo dyes useful for dyeing leather in the free form or as copper, chromium, iron, cobalt or nickel complexes have the formula Image where m is 0, 1 or 2, n is 0 or 1, p is from 1 to 2, q is from 0 to 1, and R1, R2, R3, R4, R5, R3, R7, X, Y and the ring A are each as defined, and may be prepared from aniline derivatives of the formula Image where m is 0, 1 or 2, n is 0 or 1, and X, R1, R2 and R3 are each as defined.

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