CN106699646A - 啶虫脒合成方法 - Google Patents

啶虫脒合成方法 Download PDF

Info

Publication number
CN106699646A
CN106699646A CN201610995889.0A CN201610995889A CN106699646A CN 106699646 A CN106699646 A CN 106699646A CN 201610995889 A CN201610995889 A CN 201610995889A CN 106699646 A CN106699646 A CN 106699646A
Authority
CN
China
Prior art keywords
acetamiprid
chloro
synthetic method
chloromethylpyridine
vhloro
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610995889.0A
Other languages
English (en)
Inventor
于国权
孙霞林
丁华平
周鹏
袁宇
吕佳杭
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JIANGSU CHANGQING AGROCHEMICAL CO Ltd
Original Assignee
JIANGSU CHANGQING AGROCHEMICAL CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JIANGSU CHANGQING AGROCHEMICAL CO Ltd filed Critical JIANGSU CHANGQING AGROCHEMICAL CO Ltd
Priority to CN201610995889.0A priority Critical patent/CN106699646A/zh
Publication of CN106699646A publication Critical patent/CN106699646A/zh
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D213/00Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
    • C07D213/02Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
    • C07D213/04Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D213/60Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D213/61Halogen atoms or nitro radicals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pyridine Compounds (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

本发明涉及一种啶虫脒合成方法。按照以下步骤进行:以甲苯为溶剂,2‑氯‑2‑氯甲基‑4‑氰基丁醛为起始原料,固体光气为氯化试剂,45‑60℃的条件下制备啶虫脒中间体2‑氯‑5‑氯甲基吡啶,然后经甲氨化、酯化合成啶虫脒原药。本发明反应体系简单,副反应少,原料清洁易得,反应步骤少,操作方便,收率高,质量稳定。

Description

啶虫脒合成方法
技术领域
本发明涉及一种啶虫脒合成方法,涉及有机合成中的氯化酯化等反应技术领域。
背景技术
啶虫脒是一种氯代烟碱类杀虫剂, 对害虫具有触杀和胃毒作用, 并具有卓越的内吸活性 ,是一种高效、广谱 、安全 、作用机制新颖的杀虫剂 。它对半翅目(蚜虫、叶蝉 、幼虫等)、鳞翅目(小菜蛾 、潜叶蛾、纵卷叶螟)、鞘翅目(天牛、猿叶虫等)、缨翅目(蓟马类)均有效,特别是对黄瓜、苹果树、柑桔树等的蚜虫有较好的防治效果,且对现有有机磷、氨基甲酸酯类具有严重抗性的害虫有特效。啶虫脒作为常用农药可以由多种方法来合成,在N-氰基-N-甲基乙脒法,N-氰基乙胺酸乙酯法等方法中,2-氯-5-氯甲基吡啶都是重要中间体。孙玉泉等人以3-甲基吡啶为原料经过氧化物氧化成3-甲基吡啶氧氮,然后在溶剂、催化剂及缚酸剂存在的条件下 , 用三氯氧磷环氯化为 2-氯 -5 -甲基吡啶。该方法需要分多步进行,副产物多且难以除去,产品含量低,生产成本高,氯化程度不易控制。而李明,石晓华等人以2-氯-2-氯甲基-4-氰基丁醛为原料,三氯氧磷为氯化试剂一步合成了2-氯-5-氯甲基吡啶,该方法产率高,产物分离简单,但是使用的三氯氧磷不易保存,增加了工业成本。
发明内容
本发明针对上述缺陷,目的在于提供一种具有操作简易,后处理便捷,有较高的纯度和收率的啶虫脒合成方法。
为此本发明采用的技术方案是:本发明按照以下步骤进行:
1)以2-氯-2-氯甲基-4-氰基丁醛和固体光气为原料,在催化剂的作用下合成中间体2-氯-5-氯甲基吡啶;
2)将2-氯-5-氯甲基吡啶与一甲胺反应制得N-(6-氯-3-吡啶甲基)甲胺再与N-氰基乙亚胺酸乙酯反应生成啶虫脒;
本发明具体的说按照以下步骤进行:以甲苯为溶剂,2-氯-2-氯甲基-4-氰基丁醛为起始原料,固体光气为氯化试剂,45-60℃的条件下制备啶虫脒中间体2-氯-5-氯甲基吡啶,然后经甲氨化、酯化合成啶虫脒原药。
优选的在50℃的条件下制备啶虫脒中间体2-氯-5-氯甲基吡啶。
进一步的本发明以甲苯为溶剂,2-氯-2-氯甲基-4-氰基丁醛为起始原料,固体光气为氯化试剂,原料溶于溶剂后,滴加溶于溶剂中1.2 当量的固体光气,反应5小时后得到啶虫脒中间体2-氯-5-氯甲基吡啶,然后经甲氨化、酯化合成啶虫脒原药。
本发明的优点是:本发明反应体系简单,副反应少,原料清洁易得,反应步骤少,操作方便,收率高,质量稳定。
本发明第一步所使用的氯化试剂是固体光气。发明在50℃的条件下可以制备啶虫脒中间体2-氯-5-氯甲基吡啶,并且有较高的产率。该方法具有操作简易,后处理便捷,有较高的纯度和收率。
具体实施方式
在实施本发明时,多种因素会影响进程,从而改变结果。所以,要对各因素进行探究,找到一个最佳条件水平。
该中间体的合成是一个环合反应,为使平衡向右移动,需要加入过量的固体光气。所以,在探索最佳条件是,固体光气的量的控制也是尤为重要的。
此外,反应温度和反应时间也是很重要的因素;
实施例1
将18g(0.1mol)2-氯-2-氯甲基-4-氰基丁醛溶于50ml甲苯中,在1小时内滴加50ml溶有29.6g(1.0eqiv)固体光气的甲苯溶液,50℃下保温反应5小时。冷却结晶,得啶虫脒中间体2-氯-5-氯甲基吡啶,收率77%。然后经甲氨化、酯化合成啶虫脒原药,收率75.5%。
实施例2
将18g(0.1mol)2-氯-2-氯甲基-4-氰基丁醛溶于50ml甲苯中,在1小时内滴加50ml溶有33g(1.1eqiv)固体光气的甲苯溶液,50℃下保温反应5小时。冷却结晶,得啶虫脒中间体2-氯-5-氯甲基吡啶,收率97%。然后经甲氨化、酯化合成啶虫脒原药,收率95%。
实施例3
将18g(0.1mol)2-氯-2-氯甲基-4-氰基丁醛溶于50ml甲苯中,在1小时内滴加50ml溶有35.5g(1.2eqiv)固体光气的甲苯溶液,50℃下保温反应5小时。冷却结晶,得啶虫脒中间体2-氯-5-氯甲基吡啶,收率95%。然后经甲氨化、酯化合成啶虫脒原药,收率93%。
实施例4
将18g(0.1mol)2-氯-2-氯甲基-4-氰基丁醛溶于50ml甲苯中,在1小时内滴加50ml溶有33g(1.1eqiv)固体光气的甲苯溶液,20℃下保温反应5小时。冷却结晶,得啶虫脒中间体2-氯-5-氯甲基吡啶,收率30%。然后经甲氨化、酯化合成啶虫脒原药,收率29%。
实施例5
将18g(0.1mol)2-氯-2-氯甲基-4-氰基丁醛溶于50ml甲苯中,在1小时内滴加50ml溶有33g(1.1eqiv)固体光气的甲苯溶液,30℃下保温反应5小时。冷却结晶,得啶虫脒中间体2-氯-5-氯甲基吡啶,收率39%。然后经甲氨化、酯化合成啶虫脒原药,收率38%。
实施例6
将18g(0.1mol)2-氯-2-氯甲基-4-氰基丁醛溶于50ml甲苯中,在1小时内滴加50ml溶有33g(1.1eqiv)固体光气的甲苯溶液,40℃下保温反应5小时。冷却结晶,得啶虫脒中间体2-氯-5-氯甲基吡啶,收率51%。然后经甲氨化、酯化合成啶虫脒原药,收率49%。
实施例7
将18g(0.1mol)2-氯-2-氯甲基-4-氰基丁醛溶于50ml甲苯中,在1小时内滴加50ml溶有33g(1.1eqiv)固体光气的甲苯溶液,50℃下保温反应5小时。冷却结晶,得啶虫脒中间体2-氯-5-氯甲基吡啶,收率97%。然后经甲氨化、酯化合成啶虫脒原药,收率95%。
实施例8
将18g(0.1mol)2-氯-2-氯甲基-4-氰基丁醛溶于50ml甲苯中,在1小时内滴加50ml溶有33g(1.1eqiv)固体光气的甲苯溶液,60℃下保温反应5小时。冷却结晶,得啶虫脒中间体2-氯-5-氯甲基吡啶,收率90%。然后经甲氨化、酯化合成啶虫脒原药,收率88%。
实施例9
将18g(0.1mol)2-氯-2-氯甲基-4-氰基丁醛溶于50ml甲苯中,在1小时内滴加50ml溶有33g(1.1eqiv)固体光气的甲苯溶液,50℃下保温反应6小时。冷却结晶,得啶虫脒中间体2-氯-5-氯甲基吡啶,收率92%。然后经甲氨化、酯化合成啶虫脒原药,收率90%。

Claims (4)

1.啶虫脒合成方法,其特征在于,按照以下步骤进行:
1)以2-氯-2-氯甲基-4-氰基丁醛和固体光气为原料,在催化剂的作用下合成中间体2-氯-5-氯甲基吡啶;
2)将2-氯-5-氯甲基吡啶与一甲胺反应制得N-(6-氯-3-吡啶甲基)甲胺再与N-氰基乙亚胺酸乙酯反应生成啶虫脒;
2.根据权利要求1所述的啶虫脒合成方法,其特征在于,按照以下步骤进行:以甲苯为溶剂,2-氯-2-氯甲基-4-氰基丁醛为起始原料,固体光气为氯化试剂,45-60℃的条件下制备啶虫脒中间体2-氯-5-氯甲基吡啶,然后经甲氨化、酯化合成啶虫脒原药。
3.根据权利要求2所述的啶虫脒合成方法,其特征在于,在50℃的条件下制备啶虫脒中间体2-氯-5-氯甲基吡啶。
4.根据权利要求2或3所述的啶虫脒合成方法,其特征在于,以甲苯为溶剂,2-氯-2-氯甲基-4-氰基丁醛为起始原料,固体光气为氯化试剂,原料溶于溶剂后,滴加溶于溶剂中1.2当量的固体光气,反应5小时后得到啶虫脒中间体2-氯-5-氯甲基吡啶,然后经甲氨化、酯化合成啶虫脒原药。
CN201610995889.0A 2016-11-12 2016-11-12 啶虫脒合成方法 Pending CN106699646A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610995889.0A CN106699646A (zh) 2016-11-12 2016-11-12 啶虫脒合成方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610995889.0A CN106699646A (zh) 2016-11-12 2016-11-12 啶虫脒合成方法

Publications (1)

Publication Number Publication Date
CN106699646A true CN106699646A (zh) 2017-05-24

Family

ID=58940770

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610995889.0A Pending CN106699646A (zh) 2016-11-12 2016-11-12 啶虫脒合成方法

Country Status (1)

Country Link
CN (1) CN106699646A (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110483382A (zh) * 2019-09-18 2019-11-22 甘肃青宇新材料有限公司 一种2-氯-5-氯甲基吡啶的绿色合成方法
KR20210023487A (ko) 2019-08-23 2021-03-04 주식회사 엘지화학 1-(6-클로로피리딘-3-일)-n-메틸메탄아민의 연속식 제조 방법
CN114605319A (zh) * 2020-12-09 2022-06-10 南通天泽化工有限公司 一种啶虫脒的制备方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102491943A (zh) * 2011-12-12 2012-06-13 南京工业大学 一种改进的2-氯-5-氯甲基吡啶的合成工艺
CN104803910A (zh) * 2015-03-26 2015-07-29 江苏长青农化南通有限公司 啶虫脒的生产工艺

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102491943A (zh) * 2011-12-12 2012-06-13 南京工业大学 一种改进的2-氯-5-氯甲基吡啶的合成工艺
CN104803910A (zh) * 2015-03-26 2015-07-29 江苏长青农化南通有限公司 啶虫脒的生产工艺

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210023487A (ko) 2019-08-23 2021-03-04 주식회사 엘지화학 1-(6-클로로피리딘-3-일)-n-메틸메탄아민의 연속식 제조 방법
CN110483382A (zh) * 2019-09-18 2019-11-22 甘肃青宇新材料有限公司 一种2-氯-5-氯甲基吡啶的绿色合成方法
CN114605319A (zh) * 2020-12-09 2022-06-10 南通天泽化工有限公司 一种啶虫脒的制备方法

Similar Documents

Publication Publication Date Title
CN106699646A (zh) 啶虫脒合成方法
CN104411686B (zh) 4-[5-(吡啶-4-基)-1h-1,2,4-三唑-3-基]吡啶-2-腈的制造方法及中间体
Shimizu et al. A scalable synthesis of the (S)-4-(tert-butyl)-2-(pyridin-2-yl)-4, 5-dihydrooxazole ((S)-t-BuPyOx) ligand
Seki et al. Synthesis of cis-3-arylated cycloalkylamines through palladium-catalyzed methylene sp3 carbon–hydrogen bond activation
CN109020919B (zh) 一种制备药用活性化合物n-取代苯并噻嗪-4-酮的方法
Pandey et al. Metal-free synthesis of N-cyano-substituted sulfilimines and sulfoximines
CN108148069B (zh) 一种呋喃酮并吡啶酮类化合物的合成方法
Vasudevan et al. A multi-step continuous flow synthesis of the cystic fibrosis medicine ivacaftor
Dannenberg et al. Direct access to n-alkylsulfoximines from sulfides by a sequential imidation/oxidation procedure
US20140171651A1 (en) Nitrogen-containing heterocyclic compound and method for producing same
Chen et al. Synthesis of new unsymmetric N, N′-dipyridylurea derivatives by selenium and selenium dioxide-catalyzed reductive carbonylation of substituted nitropyridines
Zhang et al. Dramatic solvent effect in the one-pot synthesis of substituted ureas directly from primary alcohols using the combined reagent of iodobenzene dichloride and sodium azide in ethyl acetate
Saeidian et al. Na2S-mediated thionation: an efficient access to secondary and tertiary α-ketothioamides via Willgerodt–Kindler reaction of readily available arylglyoxals with amines
CN105272987A (zh) 一种3-氰基-n-错位卟啉化合物的制备方法
CN104356110B (zh) 一种硫诱导3,6‑芳香杂环不对称取代‑1,2,4,5‑四嗪化合物及其合成方法
JPS61158966A (ja) 置換されたおよび未置換の2−カルバモイルニコチン酸類および3−キノリンカルボン酸類の製造方法
Fioravanti et al. Reagent-controlled diastereoselective aminations with a new chiral nosyloxycarbamate
Anderson et al. Stereoselective synthesis of densely substituted tetrahydroquinolines by a conjugate addition nitro-Mannich reaction with carbon nucleophiles
AU2021366441A1 (en) A process for the preparation of chlorantraniliprole
KR20130030908A (ko) 카바졸 화합물 및 그의 제조 방법
CN113024475B (zh) 一种喹喔啉酮类化合物的合成方法
Hirai et al. Chemoselective Amination of β-Keto Amides
JP4853911B2 (ja) イソチアゾロピリジン−3−オン化合物の製造方法
JP2007210938A (ja) イソチアゾロピリジン化合物の製造方法
KR101819824B1 (ko) 1,1-알킬 이붕소 화합물을 이용한 헤테로고리 n-옥사이드의 위치 선택적 알킬화 방법

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20170524

WD01 Invention patent application deemed withdrawn after publication