１杂环杀虫剂的合成及应用９０年代以来世界各国从事以２-氯-５ -氨甲基吡啶为原料合成杂环杀虫剂的研究十分活跃 ,发表专利文献较多 ,其主要特点是在氯代吡啶分子中引入其它活性基团所构成的各种新的烟碱类杀虫剂。在氯代烟碱类杀虫剂研究中发现 ,在３ -吡啶环上的６位引入吸 1 Synthesis and Application of Heterocyclic Insecticides Since the 1990s, many countries in the world engaged in the synthesis of heterocyclic pesticides using 2-chloro-5-aminomethylpyridine as raw materials have been very active. There are many published patent documents and their main features are In the chloropyridine molecule into the other active groups formed by a variety of new nicotine insecticides. In the study of chloronicotinyl insecticides, it was found that the 6 - position on the 3 - pyridine ring was used for the absorption