Synthesis and Characterization of Benzoxazinone Derivatives

The present work reports synthesis and characterization of different benzoxazinone derivatives. 2-methyl-7-nitro-4H-3,1-benzoxazin-4-one was prepared by refluxing 4- nitroanthranilic acid with acid anhydride. Derivatives of 2-methyl-7-nitro-4H-3,1-benzoxazin-4-one were synthesized by condensation of it with different anilines. Elemental analysis and NMR spectral studies were used to confirm the formation of compounds