57.09° (III) and 70.25° (IV). The structures were stabilized by classical intra- (C-H···S for II and III, C-H···O for IV) and intermolecular (C-H···O for I and IV) H-bonds, as well as intermolecular C-H···π stacking interactions. The theoretical FTIR results showed good agreement with the experimental data. Compounds IV, II and III showed moderate fungicidal activity against Sclerotinia sclerotiorum
芳氧基
吡唑结构存在于许多
生物活性分子中。四个 1,5-diaryl-3-oxypyrazoles 含有苯甲酰基 (I)、thiazolidinethone (II 和 III) 或 per-O-乙酰化
吡喃
葡萄糖基 (IV) 部分的特点是单晶 X 射线衍射。化合物 I 和 II 在三斜 P-1 系统中结晶,而 III 和 IV 分别在斜方 Pbca 和单斜 P21 空间群中结晶。
吡唑的两个苯环之间的二面角为61.33°(I)、62.87°(II)、57.09°(III)和70.25°(IV)。结构通过经典的内-(CH...S 用于 II 和 III,CH...O 用于 IV)和分子间(CH...O 用于 I 和 IV)H 键,以及分子间 CH· ··π堆积相互作用。理论 FTIR 结果与实验数据吻合良好。化合物IV,II和III对核盘菌和玉米赤霉表现出中等的杀真菌活性。讨论了构效关系。