The halogen substituted anthranilic acid(1) was condensed with acetic anhydride to give halogen substituted 3 methyl 1H 2,4 benoxazin 1 one(2), which was further condensed with hydrazide (3) to give twelve novel halogen substituted 2 (3 methyl 5 substitued 4H 1,2,4 triazol 4 yl) benzoic acid. All compounds synthesized were identified by 1H NMR and elemental analyses.
Fifteen tris(2 dimethyl 2 phenylpropyl)tin carboxylates were synthesized and characterized by IR and 1H NMR. The results showed that these compounds may be four coordinated and there are a linear relationship between Δν CO 2 and the Hammett constants ( σ) of the para substituents of the corresponding substituted benzoates. The bioasay tests show that neophyltin derivatives have a good acaricidal activity and may provide an acaricide for the better activity and economy.
