莠去津因其药效期长、易致癌致突变,目前已被多数国家禁(限)用。莠灭净是通过对莠去津化学改性得到的一种优良除草剂品种,具有高效低毒、药效期短等特点,是莠去津理想的替代产品。广西化工研究院近期成功开发了一种以莠去津和甲硫醇钠为原料的莠灭净合成新方法,工艺简单、操作方便、收率高、污染少,适合工业化生产。 Atrazine because of its long-term efficacy, easy to cause cancer mutations, the majority of countries have ban (limit) use. Ametryn is an excellent herbicide obtained by chemical modification of atrazine. It has the characteristics of high efficiency and low toxicity, short period of efficacy and is an ideal substitute for atrazine. Recently Guangxi Chemical Industry Research Institute has successfully developed a new method for the synthesis of amethine using atrazine and sodium methanethiolate as raw materials. The method has the advantages of simple process, convenient operation, high yield, less pollution and suitable for industrialized production.