Figure 9: Aryloxy azoyl chalcones obtained and tested by [18]. Legend: R1 = 2-Cl, 3-Cl, 2-F or 2-NO2; R2 = 4-Cl, 5-Cl, 4-F, 5-F, 4-CF3 or H; X = CH or N; n = 0 or 1.