一、前言稻枯净是安徽省化工研究所于1984年合成的一种噻二唑类化合物,其有效成分与川化—018相同。这一化合物对水稻白叶枯病具有保护和内吸治疗作用,残效较长,无“三致”和残留毒性,使用安全,是目前国内外防治该病的一种较理想的新型内吸杀菌剂。由于合成工艺路线、 I. Introduction Rice dry is a thiadiazole compound synthesized by Anhui Institute of Chemical Industry in 1984 and has the same active ingredient as that of Sichuan Hua-018. The compound has protective and systemic therapeutic effects on bacterial leaf blight of rice, has long residual effect, no “three-induced” and residual toxicity, is safe to use and is an ideal new type of systemic fungicide for preventing and treating the disease at home and abroad Agent. Due to the synthetic route,