中文摘要：

为了寻找安全、高效的除草活性化合物，通过植物生长调节剂与O，O-二甲基硫代磷酰氯的缩合反应得到8个新化合物，产率为28％～64％．利用’HNMR确定了化合物的结构．初步生物活性测定表明：化合物2、3和7对油菜Brassica mapus具有优异的抑制作用，质量浓度为100mg／L时，抑制率达到100％，其效果优于对照化合物2，4-D．其中化合物2和7表现出很好的向顶输导特性．化合物1和5具有优异的促生长作用，并表现出明显的向根积累特性．

英文摘要：

In search of safer and more efficient herbicidal compounds, eight novel compounds were synthesized by the condensation of plant growth regulator with O, O-dimethyl thiophosphoryl chloride in dichloromethane under the natural temperatures, and the yields of compounds were 28% -64%. These compounds structures were identified by ^1H NMR. The results of preliminary bioassays indicated that inhibitory rates of compound 2, 3 and 7 against the roots and seedlings of rape （ Brassica napus） were 100% at the mass concentration of 100 mg/L, which was higher than control herbicide 2,4-D. Compound 2 and 7 had an acropital translocation while compound 1 and 5 were translocated basipetally and promoted the root growth of rape seedlings.