EA201001360A1 - Способ получения алкил 2-алкоксиметилен-4,4-дифтор-3-оксобутиратов - Google Patents

Способ получения алкил 2-алкоксиметилен-4,4-дифтор-3-оксобутиратов

Info

Publication number
EA201001360A1
EA201001360A1 EA201001360A EA201001360A EA201001360A1 EA 201001360 A1 EA201001360 A1 EA 201001360A1 EA 201001360 A EA201001360 A EA 201001360A EA 201001360 A EA201001360 A EA 201001360A EA 201001360 A1 EA201001360 A1 EA 201001360A1
Authority
EA
Eurasian Patent Office
Prior art keywords
alkyl
oxobutirates
alcoxymetylene
diffor
producing alkyl
Prior art date
Application number
EA201001360A
Other languages
English (en)
Other versions
EA019427B1 (ru
Inventor
Фолькер Майвальд
Зебастиан Пер Смидт
Бернд Вольф
Кристофер Корадин
Томас Цирке
Михаэль Ракк
Михаэль Кайль
Original Assignee
Басф Се
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 Басф Се filed Critical Басф Се
Publication of EA201001360A1 publication Critical patent/EA201001360A1/ru
Publication of EA019427B1 publication Critical patent/EA019427B1/ru

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D231/00—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings
    • C07D231/02—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings
    • C07D231/10—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
    • C07D231/14—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members 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
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/30—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group
    • C07C67/333—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by isomerisation; by change of size of the carbon skeleton
    • C07C67/343—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Способ получения алкил 2-алкоксиметилен-4,4-дифтор-3-оксобутиратов (VI)где R представляет собой метил или этил, из неочищенных реакционных смесей алкил 4,4-дифторацетоацетатов (I)путем а) взаимодействиягде М представляет собой ион натрия или калия, ибез дополнительного растворителя с получением енолята (V)б) высвобождения соответствующего алкил 4,4-дифторацетоацетата (I) из енолята (V) с помощью кислоты, в) удаления образованной соли из катиона М и аниона кислоты в виде твердого вещества и г) превращения (I), без выделения из неочищенной реакционной смеси, в алкил 2-алкоксиметилен-4,4-дифтор-3-оксобутират (VI), и применение (VI) для получения 1-метил-3-дифторметилпиразол-3-илкарбоксиатов (VII)
EA201001360A 2008-02-29 2009-02-27 Способ получения алкил 2-алкоксиметилен-4,4-дифтор-3-оксобутиратов EA019427B1 (ru)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP08102197 2008-02-29
PCT/EP2009/052378 WO2009106619A1 (en) 2008-02-29 2009-02-27 Process for preparing alkyl 2-alkoxymethylene-4,4-difluoro-3-oxobutyrates

Publications (2)

Publication Number Publication Date
EA201001360A1 true EA201001360A1 (ru) 2011-04-29
EA019427B1 EA019427B1 (ru) 2014-03-31

Family

ID=39645697

Family Applications (1)

Application Number Title Priority Date Filing Date
EA201001360A EA019427B1 (ru) 2008-02-29 2009-02-27 Способ получения алкил 2-алкоксиметилен-4,4-дифтор-3-оксобутиратов

Country Status (15)

Country Link
US (1) US8207354B2 (ru)
EP (1) EP2262756B1 (ru)
JP (1) JP5559066B2 (ru)
KR (1) KR20100133392A (ru)
CN (1) CN101959840B (ru)
AR (1) AR072447A1 (ru)
AU (1) AU2009218414B2 (ru)
BR (1) BRPI0908252A2 (ru)
CA (1) CA2715668A1 (ru)
EA (1) EA019427B1 (ru)
IL (1) IL207408A (ru)
MX (1) MX2010008627A (ru)
UA (1) UA102386C2 (ru)
WO (1) WO2009106619A1 (ru)
ZA (1) ZA201006842B (ru)

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JP2018087142A (ja) * 2015-03-30 2018-06-07 旭硝子株式会社 ３−ハロゲン化アルキルピラゾール誘導体の製造方法
CN106554311B (zh) * 2015-09-28 2019-03-01 常州市卜弋科研化工有限公司 3-氟代烷基-1-甲基吡唑-4-羧酸的制备方法
WO2017054112A1 (zh) 2015-09-28 2017-04-06 常州市卜弋科研化工有限公司 3-氟代烷基-1-甲基吡唑-4-羧酸的制备方法
JP6995195B2 (ja) 2018-05-18 2022-02-04 富士フイルム株式会社 ３－ジフルオロメチルピラゾール化合物の製造方法及び３－ジフルオロメチルピラゾール－４－カルボン酸化合物の製造方法、並びに、ピラゾリジン化合物
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CN117384096A (zh) * 2023-12-13 2024-01-12 山东国邦药业有限公司 一种二氟吡唑酸的制备方法

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Also Published As

Publication number Publication date
CN101959840A (zh) 2011-01-26
EP2262756B1 (en) 2016-08-31
MX2010008627A (es) 2010-08-31
JP2011513282A (ja) 2011-04-28
CA2715668A1 (en) 2009-09-03
JP5559066B2 (ja) 2014-07-23
EA019427B1 (ru) 2014-03-31
BRPI0908252A2 (pt) 2015-07-21
AU2009218414B2 (en) 2013-05-16
US8207354B2 (en) 2012-06-26
IL207408A0 (en) 2010-12-30
WO2009106619A1 (en) 2009-09-03
CN101959840B (zh) 2014-04-16
ZA201006842B (en) 2011-12-28
AU2009218414A1 (en) 2009-09-03
UA102386C2 (ru) 2013-07-10
IL207408A (en) 2014-04-30
KR20100133392A (ko) 2010-12-21
US20110004002A1 (en) 2011-01-06
EP2262756A1 (en) 2010-12-22
AR072447A1 (es) 2010-09-01

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