Synthesis of Monoazo Reactive Dyes Based on 2-(3'-Chlorostyryl)-6-Amino-4-Oxquinazoline System and Their Application

摘要

2-(1'-Hydroxy naphthyl-3'-monosulphonic acid-6'yl-amino)-4-(2''-meta-chloro-styryl-4''-oxoquinazoline-6''-yl-amino)-6chloro-S-triazine sued as coupling component was synthesised by treatment of 2-(1'-hydroxy naphthyl-3'-monosulphonic acid-6'-yl-amino)-4,6-dichloro-S-triazine with 2-(3'-chloro-styryl)-6-amino-4-oxo-quinazoline was coupled with diazo solutions of various amines to give 2-(1'-Hydroxy naphthyl-3'-monosulphonic acid-6'yl-amino)-4-(2''-meta-chloro-styryl-4''-oxoquinazoline-6''-yl-amino)-6chloro-S-triazine.Coupling component was prepared by dissolving a mixture of J-acid and cyanuric chloride. Dyeing properties of these dyes on cotton,wool and silk were assessed. A study of the fastness of dyed patterns showed that dyes had good light fastness, good to excellent fatness to washing and rubbing and very good to excellent exhaustion.