Azo disperse dyes having 1,2,4-triazol-5-yl diazo component radicals having electron-withdrawing substituents in the 3-positions

摘要

Compounds of the formula <IMAGE> wherein R1 is C1-18alkyl, substituted C1-18alkyl, phenyl, substituted phenyl, C3-6alkenyl, substituted C3-6alkenyl, C3-6alkynyl or substituted C3-6alkynyl, R2 is an electron withdrawing substituent; and K is the residue of a coupling component that is free of any water solubilizing groups. The compounds are disperse dyes which can be used to dye, print or pad fully synthetic or semi-synthetic hydrophobic high molecular weight organic material.