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Synthesis and Application of 3-[4-(3-Hydroxy-4-methyl-phenylazo)-3, 3- dimethyl-biphenyl-4-yl) -2-methyl-3H-quinazolin-4-one and their Derivatives

H. D. Navadiya

A series of 3-[4-(3-hydroxy-4-methyl-phenylazo)-3, 3’-dimethyl-biphenyl-4-yl]-2-phenyl]-3H- quinazolin-4-one derivatives (3) have been obtained by a reaction of a various coupling agent (a-h) with diazonium salt containing 4-oxo-quinazolin moiety (2). The diazonium salt (2) is obtained by the reaction of 4-(2-methyl-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.