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为延长氯氟吡氧乙酸在土壤中的持效期,以五氯吡啶、十二醇为起始原料,采用活性亚结构拼接方法,合成了氯氟吡氧乙酸十二酯,应用氢核磁共振、碳核磁共振、氟核磁共振、红外和质谱验证了所合成化合物结构。生物活性测试结果表明:20%(质量分数)氯氟吡氧乙酸十二酯乳油对休闲地婆婆纳、猪殃殃和一年蓬等阔叶杂草具有优良的防除效果,150ga.i./hm2处理对休闲地阔叶杂草的总草平均株防效为92.0%。
In order to prolong the persistence period of fluroxypyr in soil, pentafluoropyridine and dodecanol were used as raw materials to synthesize dodecyl fluroridate with active sub-structure splicing method. Hydrogen nuclear magnetic resonance , Carbon nuclear magnetic resonance, nuclear magnetic resonance, infrared and mass spectrometry confirmed the structure of the synthesized compounds. The results of biological activity test showed that 20% (mass fraction) of flurbiprofen decyl ester EC had excellent control effect on broadleaf weeds, The average control effect of hm2 on the total grass of fallow broad-leaved weeds was 92.0%.