Studies on Synthesis of 4 Oxoquinazolin Dyes and their Application on Various Fibres

H. D. Navadiya, P. N. Dave, A.

Abstract

A series of 3-[4-(4-aryalazo)-phenyl]-2-phenyl-3H-quinazolin-4-one derivatives (3) have been obtained by a reaction of a various coupling agents with diazonium salt containing 4-oxoquinazolin moiety (2). The diazonium salt (2) is obtained by the reaction of 4-(2-phenyl-4-oxo-3-quinazolinyl)- aniline with NaNO2 and HCl. The product is characterized by spectral and analytical data. Most of the tested compounds show promising dyeing properties.