前言戊菊酯国内商品名称为多虫畏,化学名称为间苯氧基[2-(4-氯苯基)2-甲基]丁酸酯,国外代号为S-5439。由于它的杀虫作用和天然除虫菊素一样,对害虫有强烈的触杀作用,并兼具胃毒作用,而没有熏蒸和内吸杀虫活性。根据分子模型分析,在酸部份的几何立体构型,完全和天然除虫菊的菊酸相类似。所以,戊菊酯分子结构中虽不含环丙烷基团,但它仍属于拟除虫菊酯类杀虫剂。其合成工艺 Preface The domestic trade name of fenvalerate is vermiculite, the chemical name is m-phenoxy [2- (4-chlorophenyl) 2-methyl] butyrate, foreign code-named S-5439. Because of its insecticidal effect and natural pyrethrins, as a strong role in contact with pests, and both stomach effect, and no fumigation and insecticidal insecticidal activity. According to the molecular model analysis, the geometric configuration of the acid moiety is completely similar to that of the natural pyrethrum. Therefore, although the molecular structure of fenvalerate does not contain cyclopropane groups, it still belongs to pyrethroid insecticides. Its synthesis process