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2000年12月30日由浙江省经贸委组织的专家组对杭州宇龙化工有限公司与沈阳化工研究院合作研制的精恶唑禾草灵原药及其6.9%的水乳剂(千里马)的全套工艺技术资料进行了鉴定,专家组一致认为所提供的技术资料齐全、数据可靠,该项中试技术顺利通过了省级技术鉴定。该原药生产路线以邻氨基苯酚为起始原料,经七步化学反应直接合成高含量旋光有效体——精恶唑禾草灵,具有原料成本低廉、三废量少的优点,新工艺在环合和氯化两步反应中有重大创新和突破,使原药
December 30, 2000 Zhejiang Province Economic and Trade Commission organized by the expert group of Hangzhou Yulong Chemical Co., Ltd. and Shenyang Chemical Research Institute of the fine oxazole grass Lingyuan drug and its 6.9% of the water emulsion (Maxima) a full set Technical data were identified, the panel agreed that the technical information provided by the complete, reliable data, the pilot technology successfully passed the provincial technical appraisal. The original drug production line to o-aminophenol as the starting material, the seven-step chemical reaction directly to the synthesis of high-content optically active body - fenoxaprops grass Ling, with low cost of raw materials, waste less the advantages of new technology in the ring Chlorinated two-step reaction and there are major innovations and breakthroughs, so that the original drug