硫(硒)代磷酸酯-膦酸酯类化合物除草活性的构效关系

Studies on the Quantitative StructureActivityRelationship(QSAR) of Thio(Seleno)Phosphatephosphonate Herbicides

利用与自由能有关的取代基物理化学参数，考察了硫（硒）代磷酸酯－膦酸酯类化合物对除草活性的相关性．根据Ｈａｎｓｃｈ方程及多元回归分析，进行了结构与活性定量关系的研究，建立了较好的结构与活性相关式．

The quantitative relationship between the structure of thio(seleno) phosphatephosphonates and their herbicidal activity on the rape was investigated using physicochemical parameters of the substituents and regression analysis. Good QSAR results were obtained, which might be used in guiding the synthesis of compounds with higher activity.