第 50 卷第 2 期 | | Vol. 50 No. 2 | 2020 年 4 月 | Apr 2020 |
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所属栏目:农药及中间体
异噁草酮的合成研究 |
程 超1,2,欧阳宇迪1,2,兰世林1,2,刘 源1,2,熊莉莉1,2,陈郭芹1,2,徐 健3
(1. 湖南化工研究院有限公司,国家农药创制工程技术研究中心,湖南 长沙 410014;2. 农用化学品湖
南省重点实验室,湖南 长沙 410014;3. 湖南海利常德农药化工有限公司,湖南 常德 415001) |
摘 要:以氯代特戊酰氯、盐酸羟胺和邻氯苄氯为主要原料,经酰化反应、成环反应、缩合反应得到粗品异噁草酮,再经氯化氢气体处理和异丙醇/石油醚重结晶,制备得到高品质异噁草酮原药,含量超过98.0%。此方法具有工艺条件温和、易操作、含量高等优点,适合大规模工业化生产。 |
关键词:异噁草酮;氯代特戊酰氯;高品质;重结晶 |
中图分类号:S482.4 文献标识码:A 文章编号:1009-9212(2020)02-0022-04 |
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Study on the Synthesis of Clomazone |
CHENG Chao1,2, OUYANG Yu-di1,2, LAN Shi-lin1,2, LIU Yuan1,2, XIONG Li-li1,2, CHEN Guo-qin1,2, XU Jian3
(1. Hunan Research Institute of Chemical Industry Co.,Ltd., Nation Engineering Research Center for Agrochemicals, Changsha 410014, China; 2. Hunan Province Key Laboratory for Agrochemicals, Changsha 410014, China; 3. Hunan Haili Changde Pesticide & Chemicals Co., Ltd., Changde 415001, China) |
Abstract:The crude product of clomazone was synthesized using chlorotervaloyl chloride, hydroxylamine hydrochloride and 2-chlorobenzyl chloride as raw materials through a series ractions including oximation, cyclization and condensation. Clomazone with a purity of more than 98.0% was obtained by purifying the crude product with HCl gas and recrystallization from iso-propyl alcohol/petroleum ether. This method was suitable for large-scale industrial production with many advantages such as mild reaction conditions, simple operation, high quality. etc. |
Key words:clomazone; chlorotervaloyl chloride; high quality; recrystallization |
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基金项目:国家重点研发计划项目(2017YFB0307200)。
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作者简介:程 超(1987-),男,安徽黄山人,助理研究员,硕士,研究方向:农药及精细化学品的合成与开发(E-mail:253222581@qq.com)。
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收稿日期:2020-02-18
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