Water insoluble styryl dyestuffs having hetero-aryl methylene su

Details Water insoluble styryl dyestuffs having hetero-aryl methylene su Water insoluble styryl dyestuffs having hetero-aryl methylene su

1976-10-07

1979-10-30

Daus, Donald G.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D21548

Patent

active

041729447

ABSTRACT:
The invention relates to water-insoluble styryl dyestuffs of the formula ##STR1## wherein B is a bridge member, R is hydrogen, alkyl, aryl or the remaining members of a partially saturated ring fused to the ring "a", Z is preferably CN and n denotes the numbers 3 to 5.
The dyestuffs are outstandingly suitable for the dyeing of hydrophobic fibre materials in yellow shades. The dyeings are distinguished by excellent fastness to light.

REFERENCES:
patent: 3379779 (1968-04-01), Strobel et al.
patent: 3398152 (1968-08-01), Wallace et al.
patent: 3629274 (1971-12-01), Oliver

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