Indole-containing disazo dyestuffs having a sulfatoalkyleneoxy-s

Details Indole-containing disazo dyestuffs having a sulfatoalkyleneoxy-s Indole-containing disazo dyestuffs having a sulfatoalkyleneoxy-s

1974-11-15

1976-05-11

Higel, Floyd D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260196, 260207, 2603191, 260458, 260575, C09B 3114, C09B 3312, D06P 306, D06P 324

Patent

active

039562670

ABSTRACT:
Disazo dyestuffs which in form of the free acid correspond to the formula ##SPC1##
Wherein A is an alkylene of 2-5 carbon atoms; R.sub.1, R.sub.2, and R.sub.3 are hydrogen, chloro, bromo, alkoxy, or alkyl; R.sub.4 is alkyl, phenyl, or substituted phenyl; R.sub.5 is hydrogen, alkyl, or alkyl substituted by cyano, carbonamido, or carboxyl; R.sub.6 is a substituent; B is 1,4-phenylene or 1,4-naphthylene; m is a number from 1 to 4; and n is a number from 0 to 2. These dyestuffs are useful for dyeing or printing natural or snythetic fibers containing amide groups, such as wool, silk or polyamide; and the resulting product is distinguished by good fastness properties.

REFERENCES:
patent: 3070592 (1962-12-01), Baumann et al.
patent: 3345355 (1967-10-01), Raue
patent: 3523115 (1970-08-01), Grandjean

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