杀虫剂新品种——噻虫嗪的合成研究

Research on Synthetic Methods of Thiamethoxam

噻虫嗪是一种具有优异活性的类似于新烟碱类化合物的杀虫剂。噻虫嗪的合成采用2,3-二氯-1-丙烯和硫氰酸钠反应,生成2-氯丙烯硫代异氰酸酯,再和氯气反应,最后和3-甲基-4-硝基亚胺-1,3,5-恶二嗪反应而制得产品。

Thiamethoxam is a highly active insecticide as if new nicotine compound. Thiamethoxam is synthesized from 2, 3 - dichloro - 1 - propene and sodium thiocyanate, the intermediate reacts with chlorine and 3 - methyl - 4 - imine - N -nitro - 1, 3, 5 - oxadiazin in turn to gain the objective product.