Abstract Reactions of fluorine-containing 3, 1-benzoxazin-4-ones with ammonium acetate, hydrazine, and heteroaromatic amines gave new 3 H-, 3-amino-, and 3-hetarylquinazolin-4- ones, respectively. Differences in the conditions of formation of benzoxazinones from anthranilic acids with different fluorination patterns and in the reactions of fluorinated 3, 1- benzoxazinones with nitrogen-centered nucleophiles were revealed.