采用α－三唑－β－烷氧基芳酮与肼关环，制备了１，３－二苯基－４－三唑基吡唑啉１ａ，１－苯基－３－对氯苯基－４－三唑基吡唑啉１ｂ和３－取代苯基－４－三唑基吡唑啉（７），并研究了化合物７的成环优化条件．使用α，β－不饱和酮与肼关环合成了１，３，４，５－多取代吡唑啉衍生物１ｃ—１ｈ，并初步用质谱法确定了该反应产物的结构；同时，以３，５－二取代吡唑啉（６）和７作为中间体合成了１－，３－，４－或５－取代的化合物２ａ—２ｌ．初步生物活性测定结果表明，所合成的化合物均有一定的杀菌、激素和除草效果． 1,3-diphenyl-4-triazolylpyrazoline 1a, 1-phenyl-3-p-chlorophenyl- 4-triazolylpyrazoline 1b and 3-substituted phenyl-4-triazolylpyrazoline (7) were synthesized and the conditions for the cyclization of compound 7 were studied. 1,3,4,5-polysubstituted pyrazoline derivative 1c-1h was synthesized by ring-closure reaction of α, β-unsaturated ketone with hydrazine. The structure of the reaction product was determined by mass spectrometry. , 5-disubstituted pyrazoline (6) and 7 as the intermediate, 1-, 3-, 4- or 5-substituted compounds 2a-2l were synthesized. Preliminary bioassay results showed that the synthesized compounds have certain bactericidal, hormonal and herbicidal effects.