CN104311502B - 从茚虫威混合体中分离提纯s体茚虫威的方法 - Google Patents

从茚虫威混合体中分离提纯s体茚虫威的方法 Download PDF

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CN104311502B
CN104311502B CN201410465250.2A CN201410465250A CN104311502B CN 104311502 B CN104311502 B CN 104311502B CN 201410465250 A CN201410465250 A CN 201410465250A CN 104311502 B CN104311502 B CN 104311502B
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indoxacarb
mixture
weight ratio
petroleum ether
acetonitrile
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CN104311502A (zh
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仇耀康
刘文华
刘建华
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NANTONG SHI ZHUANG CHEMICAL Co Ltd
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    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D273/00Heterocyclic compounds containing rings having nitrogen and oxygen atoms as the only ring hetero atoms, not provided for by groups C07D261/00 - C07D271/00
    • C07D273/02Heterocyclic compounds containing rings having nitrogen and oxygen atoms as the only ring hetero atoms, not provided for by groups C07D261/00 - C07D271/00 having two nitrogen atoms and only one oxygen atom
    • C07D273/04Six-membered rings
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
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Abstract

本发明公开了一种从茚虫威混合体中用溶剂重结晶分离提纯出S体茚虫威的方法,所用的有机溶剂为乙腈、醇类、烃类、醚类、酯类溶剂或他们任意比例的混合物,重结晶的温度为‑10~10℃,制得最终产品S体茚虫威纯度大于98%,满足了市场对S体茚虫威的需求。

Description

从茚虫威混合体中分离提纯S体茚虫威的方法
技术领域
本发明涉及一种从茚虫威混合体中分离提纯S体茚虫威的方法。
背景技术
茚虫威[试验代号DPX-JW062、DPX-MP062、DPX-KNl27、DPX-KNl28,通用名称indoxacarb,商品名:Ammate(全垒打)、Avatar(安打)、Avaunt、Steward]是美国杜邦公司开发的新型噁二嗪类(oxadiazine)杀虫剂。已在美国、澳大利亚、中国等国作为“降低险产品”(reduced-riskproduct)登记注册
化学名称为(S)-7-氯-2,3,4a,5-四氢-2-[甲氧基羰基(4-三氟甲氧基苯基)氨基甲酰基]茚并[1,2-e][1,3,4-]噁二嗪-4a-羧酸甲酯。
英文化学名称为
methyl(S)-7-chloro-3,5-dihydro-2-[[methoxycarbony[(4-trifuoromethoxy)phenyl]amino]carbonyl]indeno[1,2-e-][1,3,4]oxadiazine-4a(3H)-carboxylate
化学结构式如下:
茚虫威结构中只有 S 异构体有活性,而 R 异构体没有活性。其中 DPX-JW062 S 异构体和 R 异构体的比例为 l l DPX-MP062 :的比例为 3 l DPX-KNl27 R 异构体; DPX-KNl28 S 异构体。有效成分以 S 异构体 DPX-KNl28 计。
因此提纯出S异构体茚虫威具有十分重要的意义,而目前文献上尚未有此方面的报道。
发明内容
本发明的目的是提出一种工艺简单成熟,成本低廉的从茚虫威混合体中,分离提纯出纯度>98%的S体茚虫威的方法。
本发明是这样实现的,一种从茚虫威混合体中分离提纯S体茚虫威的方法,其采用溶剂重结晶的分离提纯方法,具体操作是:向含S体、R体的茚虫威混合体中加入与茚虫威混合体重量比为1~50:1的乙腈、醇类、烃类或酯类溶剂或他们任意比例的混合物,然后加热升温到50~100℃,待物料溶解后,将体系温度降至-10~10℃,并保持10~15小时,然后滤除结晶出的混合体茚虫威,收集滤液,浓缩溶剂,浓缩掉溶剂投料量的10~80%,然后再降温至-10~10℃,析出S体的茚虫威,经过滤干燥得到纯度>98%的S体茚虫威。
进一步的,所用的茚虫威混合体中S体:R体为1~19:1,总含量≥95%。
本发明的优点是:方法简便易操作、产品品质高,生产成本低,生产过程环境污染小。
具体实施方式
实施例1:
取茚虫威混合体10g,总含量95%,S体:R体=2.5:1,加入乙腈10g,加热到70℃,物料全部溶解后将体系降温到0℃,并保持10小时,析出混合体结晶,滤除结晶物。滤液浓缩掉4g乙腈,再降温到0℃,析出结晶,过滤干燥得到S体茚虫威2.5g,手性柱分析S体98.3%,R体0.3%。
实施例2:
取茚虫威混合体10g,总含量95%,S体:R体=3:1,加入甲醇20g,加热到65℃,物料全部溶解后将体系降温到0℃,并保持10小时,析出混合体结晶,滤除结晶物。滤液浓缩掉10g甲醇,再降温到0℃,析出结晶,过滤干燥得到S体茚虫威3.8g,手性柱分析S体98.4%,R体0.2%。
实施例3
取茚虫威混合体10g,总含量95%,S体:R体=5:1,加入乙酸乙酯10g,环己烷20g,加热到75℃,物料全部溶解后将体系降温到-10℃,并保持10小时,析出混合体结晶,滤除结晶物。滤液浓缩掉8g乙酸乙酯与环己烷的混合溶剂,再降温到-10℃,析出结晶,过滤干燥得到S体茚虫威5g,手性柱分析S体98.6%,R体0.1%。
实施例4
取茚虫威混合体10g,总含量95%,S体:R体=10:1,加入乙腈10g,90-120#石油醚20g,加热到70℃,物料全部溶解后将体系降温到-10℃,并保持10小时,析出混合体结晶,滤除结晶物。滤液浓缩掉6g乙腈与90-120#石油醚的混合物,再降温到-10℃,析出结晶,过滤干燥得到S体茚虫威7.2g,手性柱分析S体98.7%,R体0.2%。
实施例5
取茚虫威混合体10g,总含量95%,S体:R体=19:1,加入甲醇10g,90-120#石油醚20g,加热到65℃,物料全部溶解后将体系降温到-10℃,并保持15小时,析出混合体结晶,滤除结晶物。滤液浓缩掉4g甲醇与90-120#石油醚的混合溶剂,再降温到-10℃,析出结晶,过滤干燥得到S体茚虫威8.1g,手性柱分析S体98.8%,R体0.1%。

Claims (2)

1.一种从茚虫威混合体中分离提纯S体茚虫威的方法,其特征在于:采用溶剂重结晶的分离提纯方法,具体操作是:向含S体、R体的茚虫威混合体中加入与茚虫威混合体重量比为1~50:1的乙腈或重量比为2:1的甲醇或重量比为3:1的乙酸乙酯和环己烷的混合物或重量比为3:1的乙腈和90-120#石油醚的混合物或重量比为3:1的甲醇和90-120#石油醚的混合物,然后加热升温到50~100℃,待物料溶解后,将体系温度降至-10~10℃,并保持10~15小时,然后滤除结晶出的混合体茚虫威,收集滤液,浓缩溶剂,浓缩掉溶剂投料量的10~80%,然后再降温至-10~10℃,析出S体的茚虫威,经过滤干燥得到纯度>98%的S体茚虫威;所述乙酸乙酯和环己烷的混合物中乙酸乙酯和环己烷的重量比为1:2,所述乙腈和90-120#石油醚的混合物中乙腈和90-120#石油醚的重量比为1:2,所述甲醇和90-120#石油醚的混合物中甲醇和90-120#石油醚的重量比为1:2。
2.按照权利要求1所述的从茚虫威混合体中分离提纯S体茚虫威的方法,其特征在于:所用的茚虫威混合体中S体:R体为1~19:1,总含量≥95%。
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CN105838772A (zh) * 2016-05-27 2016-08-10 苏州汉酶生物技术有限公司 (s)-5-氯-2,3-二氢-2-羟基-1-氧代-1h-茚-2-羧酸甲酯的生物制备方法
AU2017200535A1 (en) * 2017-01-27 2018-08-16 Rotam Agrochem International Company Limited A novel crystalline form of indoxacarb, a process for its preparation and use of the same
MX2019011299A (es) * 2017-03-29 2019-12-19 Adama Makhteshim Ltd Nuevos sistema catalitico para la preparacion escalable de indoxacarb.
EP3997074A4 (en) * 2019-07-10 2023-07-05 Gharda Chemicals Limited PROCESS FOR OBTAINING INDOXACARB CRYSTALS WITH SPECIFIC PURITY AND ENANTIOMER RATIO
BR112022000352A2 (pt) * 2019-07-10 2022-05-10 Gharda Chemicals Ltd Processo para isolar cristais de isômero s de indoxacarbe
CN116003342B (zh) * 2022-01-05 2024-04-05 山东京博农化科技股份有限公司 精茚虫威的获得方法及精茚虫威制剂

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TW201321367A (zh) * 2011-10-25 2013-06-01 Du Pont 經1,3-二芳基取代之雜環殺蟲劑
CN103694193B (zh) * 2013-10-11 2016-01-20 浙江大学 精茚虫威的晶型及其无定形形式

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WO2023131943A1 (en) * 2022-01-04 2023-07-13 Adama Makhteshim Ltd. Process of preparation of indoxacarb and its intermediates

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