Synthesis of 4-Oxoquinazoline Derivatives and Their Application of Polyester Fibre

Abstract

Thirteen azo disperse dyes of the type 2-phenyl-3-[H]-substituted- 4‴-(N,N-disubstituted amino phenyl-4″-aryl azo-4´-benzanilid-1´-yl)-4-oxoquinazoline have been synthesised by the condensation of the diamino benzanilide with 2-phenyl 4-oxo 3,1- benzoxazine, then after diazotisation, subsequent coupling with various substituted amino benzene derivatives was carried out. Their spectral characteristics are evaluated. Their dyeing properties like washing, light and rubbing fastness percentage % exhaustion were assessed.