Disperse monoazo dyestuffs

Abstract From the Canadian patent

The disperse monoazo dyestuffs of the formula:wherein L1 and L2 are each optionally substituted lower alkyl Z is hydrogen or lower alkoxy;, R is lower alkyl or cyano lower alkyl; A and A each independently represent a lower alkylene radical; X is cyano, lower alkoxy, lower alkoxy tower alkoxy lower alkoxy lower alkoxy lower alkoxy chlorine, bromine, lower, alkoxycarbonyl lower allylcarbonyl, optionally substituted phenoxy carboonyl, optionally substituted phenycarbonyl optionally substituted, phenoxy, hydroxymenthyl or lower alkyl carbonloxmethyl. Y is lower alkoxcarbonyl lower alkcatbonyl, optionally, substituted phenoxy lower alkylcarbonyl lower alklsulphonyl, optionally, a process for …