第 50 卷第 2 期 |  | Vol. 50 No. 2 | 2020 年 4 月 | Apr 2020 |
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所屬欄目:農藥及中間體
異噁草酮的合成研究 |
程 超1,2,歐陽(yáng)宇迪1,2,蘭世林1,2,劉 源1,2,熊莉莉1,2,陳郭芹1,2,徐 健3
(1. 湖南化工研究院有限公司,國家農藥創(chuàng )制工程技術(shù)研究中心,湖南 長(cháng)沙 410014;2. 農用化學(xué)品湖
南省重點(diǎn)實(shí)驗室,湖南 長(cháng)沙 410014;3. 湖南海利常德農藥化工有限公司,湖南 常德 415001) |
摘 要:以氯代特戊酰氯、鹽酸羥胺和鄰氯芐氯為主要原料,經(jīng);磻、成環(huán)反應、縮合反應得到粗品異噁草酮,再經(jīng)氯化氫氣體處理和異丙醇/石油醚重結晶,制備得到高品質(zhì)異噁草酮原藥,含量超過(guò)98.0%。此方法具有工藝條件溫和、易操作、含量高等優(yōu)點(diǎn),適合大規模工業(yè)化生產(chǎn)。 |
關(guān)鍵詞:異噁草酮;氯代特戊酰氯;高品質(zhì);重結晶 |
中圖分類(lèi)號:S482.4 文獻標識碼:A 文章編號: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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基金項目:國家重點(diǎn)研發(fā)計劃項目(2017YFB0307200)。
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作者簡(jiǎn)介:程 超(1987-),男,安徽黃山人,助理研究員,碩士,研究方向:農藥及精細化學(xué)品的合成與開(kāi)發(fā)(E-mail:253222581@qq.com)。
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收稿日期:2020-02-18
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