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据《化工文摘》报道,目前,我国农药生产需进口原料,中间体80余种,耗资1亿美元。专家建议:1.科研单位应着手解决高纯二甲苯、吡啶、邻甲酚、三聚氯氰、3,5-二氯苯胺、2,4-二甲苯胺、2,6-二乙苯胺、对异丙基苯胺、DV 菊酸、邻硝基氯化苯、对氯三氟甲苯、十二烷基苯磺酸钠、五硫化二磷等的生产。2.将一定难度,用量较大的下列品种列入正式科研项目,进行开发和工业化研究:①2-氯-5三氟甲基吡啶及其氯化产品2.3-二氯-5-三氟甲基吡啶,用它可生产吡氟禾草灵、吡氟禾灵等除草剂。②2,6-二氟苯甲
According to “Chemical Abstracts,” reports, at present, China’s pesticide imports of raw materials need to be imported, more than 80 kinds of intermediates, costing 100 million US dollars. Experts suggest: 1. Scientific research institutes should address high purity xylene, pyridine, o-cresol, cyanuric chloride, 3,5-dichloroaniline, 2,4-dimethylaniline, Right isopropylaniline, DV chrysanthemic acid, o-nitrobenzene, p-chlorobenzotrifluoride, sodium dodecyl benzene sulfonate, phosphorus pentasulfide and other production. 2. Will be a certain degree of difficulty, a large amount of the following varieties included in the official research projects, development and industrialization research: ① 2-chloro-5-trifluoromethylpyridine and its chlorinated products 2.3-dichloro-5-trifluoromethyl Pyridine, it can be used to produce fluazifop and pyridine and other herbicides. ② 2,6-difluorobenzoyl