Water-soluble quaternary ammonium heterocyclic azo dyestuffs

Abstract

Abstract Water-soluble cationic dyestuffs of the formulae ##SPC1## Wherein R 0 is hydrogen, lower-alkyl or hydroxy-lower-alkyl; R 1 is lower-alkyl, lower-alkenyl or hydroxy-lower-alkyl; R 2 is lower-alkyl, lower-alkenyl, hydroxy-lower-alkyl or -(lower-alkylene)-NRO Y or R 1 and R 2 together with the nitrogen atom, are pyrrolidino, piperidino or 4-lower-alkanoyl piperazino; Y is hydrogen or ##EQU1## wherein R is hydrogen, lower-alkyl, lower-alkenyl, phenyl or phenyl-lower-alkyl; A is a member selected from the group consisting of an aromatic azo dyestuff residue attached to the quaternary ammonium nitrogen atom through a lower-alkylene bridge. k is a small integer whose value is dependent on the nature or A such that it has a range from one to two; R 8 is lower-alkyl, lower-alkenyl or hydroxy-lower-alkyl; R 9 is lower-alkyl, hydroxy-lower-alkyl or NH 2 ; R 10 is lower-alkyl or lower-alkenyl; A 1 is an aromatic azo dyestuff residue attached to the quaternary ammonium nitrogen atom through a lower-alkylene bridge; g is a small integer whose value is dependent on the nature of A 1 such that it has a range from one to two; R 8 ' is lower-alkyl; R 9 ' is lower-alkyl, lower alkenyl or hydroxy-lower-alkyl; R 10 ' is lower-alkyl, lower -alkenyl or hydroxy-lower-alkyl or R 9 ' and R 10 ' together with the nitrogen atom are morpholino; A 2 is an aromatic azo dyestuff residue attached to the quaternary ammonium nitrogen atom through a lower-alkylene bridge; h is a small integer whose value is dependent on the nature of A 2 such that it has a range from one to two; and An is an anion Are particularly useful for coloring natural fibers, synthetic fiber-forming materials and cellulosic materials.

Inventors

• 👤 Patrick J. Jefferies
• 👤 Nathan N. Crounse

Bibliographic Details