
Synthesis and characterization of novel yellow azo dyes from 2-morpholin-4-yl-1,3-thiazol-4(5H)-one and study of their azo–hydrazone tautomerism
Keywords: Yellow azo dyes; 2-(Morpholin-4-yl)-1,3-thiazol-4(5H)-one; Diazotization; Diazocoupling; Density functional theory; Azo–hydrazone tautomerism