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EP1902038A2 - Procede pour preparer des derives de 3-arylmethylthio- et 3-heteroarylmethylthio-4,5- dihydro-isoxazoline - Google Patents

Procede pour preparer des derives de 3-arylmethylthio- et 3-heteroarylmethylthio-4,5- dihydro-isoxazoline

Info

Publication number
EP1902038A2
EP1902038A2 EP06776077A EP06776077A EP1902038A2 EP 1902038 A2 EP1902038 A2 EP 1902038A2 EP 06776077 A EP06776077 A EP 06776077A EP 06776077 A EP06776077 A EP 06776077A EP 1902038 A2 EP1902038 A2 EP 1902038A2
Authority
EP
European Patent Office
Prior art keywords
alkyl
general formula
cycloalkyl
substituted
cyano
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.)
Withdrawn
Application number
EP06776077A
Other languages
German (de)
English (en)
Inventor
Wolfgang Schaper
Hendrik Helmke
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.)
Bayer CropScience AG
Original Assignee
Bayer CropScience AG
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 Bayer CropScience AG filed Critical Bayer CropScience AG
Publication of EP1902038A2 publication Critical patent/EP1902038A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D261/00—Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings
    • C07D261/02—Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings not condensed with other rings
    • C07D261/04—Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D261/00—Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings
    • C07D261/02—Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings not condensed with other rings
    • C07D261/06—Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings not condensed with other rings having two or more double bonds between ring members or between ring members and non-ring members
    • C07D261/08—Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings not condensed with other rings having two or more double bonds between ring members or between ring members and non-ring members with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D413/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms
    • C07D413/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings
    • C07D413/12—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings linked by a chain containing hetero atoms as chain links

Definitions

  • the invention relates to a process for the preparation of 3-arylmethylthio and 3-heteroarylmethylthio-4,5-dihydro-isoxazoline derivatives by a one-pot process in which corresponding arylmethyl and heteroarylmethyl isothiuronium salts in the presence of an aqueous alkali or alkaline earth base with an isoxazoline To the corresponding 3-arylmethylthio and 3-heteroarylmethylthio-4,5-dihydroisoxazoline derivatives.
  • the object was therefore to provide a synthesis process for the abovementioned thioethers of the general formula (1), as well as other analogs, which avoids the abovementioned disadvantages of the processes according to (a) or (b).
  • the present invention now relates to a process for the preparation of 3-arylmethylthio and 3-heteroarylmethylthio-4,5-dihydro-isoxazoline derivatives of the general formula (I),
  • R 1, R 2 are each independently hydrogen, (Ci-C 6) -alkyl, (C 2 -C 6) -
  • R 3 , R 4 are hydrogen, (C 1 -C 6 ) -alkyl, (C 2 -C 6 ) -alkenyl, (C 2 -C 6 ) -alkynyl or (C 3 -C 8 ) -cycloalkyl, the abovementioned Alkyls, cycloalkyls, alkenyls or alkynyls optionally by one or more identical or different radicals from the group consisting of halogen, cyano, (C 3 -C 8 ) -cycloalkyl, (C 1 -C 6 ) -alkoxy, (C 1 -C 6 ) - Haloalkoxy or (Ci-C 6 ) alkylthio are substituted, or R 3 and R 4 together form a spiro linkage of 3 to 8 carbon atoms, together with the carbon atom to which they are bonded together, or R 1 and R 3 , together with the C atoms to which they are
  • R 5 is unsubstituted or substituted aryl, preferably having 6 to 14 C
  • Atoms or unsubstituted or substituted heteroaryl having preferably 1 to 9 C atoms and one or more heteroatoms, preferably having 1 to 4 heteroatoms, in particular having 1 to 3 heteroatoms from the group N, O and S, where each of the above carbocyclic or heterocyclic radicals are optionally substituted by OH, halogen, cyano, (Ci-C 6) -alkyl, (CrC 6) - haloalkyl, (C 2 -C 6) alkenyl, (C 2 -C 6) -alkynyl, (C 3 - C 8) cycloalkyl, (C 3 -C 6) - cycloalkenyl, mono- (Ci-C 6) alkylamino, di - ((Ci-C 6) alkyl) amino, N- (C 1 - C 6 ) alkanoyl) amino, (Ci-C 6) alkoxy, (Ci-C 6) -
  • R 16 ö is hydrogen or (Ci-C 6 ) -alkyl.
  • R 1 , R 2 , R 3 and R 4 have the meanings given above for the general formula (I) and Lg 'denotes a leaving group, to the target compounds, ie the corresponding 3-arylmethylthio and 3-heteroarylmethylthio-4,5-dihydro-isoxazolinen of the general formula (I) are reacted.
  • the production compared to the variant (a) of the prior art shortens by one step.
  • the method according to the invention has a reduced number of stages by 2.
  • leaving groups Lg chlorine, bromine, iodine or sulfonate groups, such as methane trifluoromethane, ethane, benzene or toluene sulfonate are preferred.
  • leaving groups Lg ' are chlorine, bromine or sulfonate groups, such as methane trifluoromethane, ethane, benzene or toluene sulfonate or methysulfonyl, but especially chlorine preferred.
  • R 1 and R 2 are each independently (C 1 -C 4 ) -alkyl, (C 2 -C 3 ) -alkenyl, (C 2 -C 3 ) -alkynyl, (C 3 -C 6 ) -cycloalkyl, wherein each of the (C 1 -C 4 ) -alkyl, (C 2 -C 3 ) -alkenyl, (C 2 -C 3 ) -alkynyl, (C 3-C6) -cycloalkyl radicals is optionally substituted by one or more radicals from the group halogen, cyano or (C 3 -C 6) cycloalkyl.
  • the method according to the invention compounds are useful in application further the general formula (I) in which R 1 and R 2 independently of one another are methyl or ethyl, which are preferred chlorinated or fluorinated turn gege gene substituted independently one or more times halogenated.
  • R 1 and R 2 independently of one another are methyl or ethyl, which are preferred chlorinated or fluorinated turn gege gene substituted independently one or more times halogenated.
  • Preferred among the halogenated radicals are chloromethyl and fluoromethyl, most preferably chloromethyl.
  • R 5 is an unsubstituted or substituted aryl preferably having 6 to 10 C atoms or unsubstituted or substituted heteroaryl having preferably 1 to 9 C atoms, preferably 3 to 5 C atoms having 1 to 3 heteroatoms, preferably having one or two identical or different heteroatoms from the group N, O and S, where each of the above carbocyclic or heterocyclic radicals is optionally substituted by halogen, cyano, (Ci-C 3 ) Alkyl, (C r C 3 ) haloalkyl, (C 2 -C 4 ) alkenyl, (C 2 -C 4 ) alkynyl, (C 3 -C 6 ) cycloalkyl, (C 3 -C 6 ) - cycloalkenyl, (C 1 -C 4 J -alkoxy, (C r C 4) -haloal
  • R 5 is an unsubstituted or substituted aryl preferably having 6 to 10 C atoms, or unsubstituted or substituted heteroaryl having preferably 3 to 5 C atoms with 1 to 3 heteroatoms, preferably with one or two identical or different heteroatoms from the group N, O and S, wherein each of the above carbocycli Dist or heterocyclic radicals optionally substituted by one or more identical or different radicals from the group halogen, cyano, ethyl, methyl, haloethyl, halomethyl, halomethoxy or haloethoxy.
  • Particularly preferred compounds of the general formula (I) are those in which R 5 is a substituted or unsubstituted phenyl, naphthyl, thienyl, furyl, pyrazolyl, pyridinyl, pyrimidinyl, pyrazinyl, pyridazinyl, imidazolyl, isothiazolyl, thiazolyl or oxazolyl, most preferably corresponds to a phenyl or pyrazolyl, which in the case of substitution preferably by one or more, identical or different radicals from the group halogen, cyano, ethyl, methyl, halomethoxy or halomethyl are substituted, wherein among the halogens chlorine and fluro, im Halomethoxy and halomethyl especially fluorine, are preferred.
  • isoxazolines (IV) used as starting material in the process according to the invention in which Lg 1 has the meaning of a leaving group, such as, for example, halogen, SOaMe, SOMe or the like, are known to the person skilled in the art and are described inter alia in:
  • isothiuronium salts from the corresponding alkylating agents and Th urea is carried out by literature methods, advantageously by reaction of a corresponding alkylating agent of the formula R 5 R 6 CHLg, with R 5 , R 6 and Lg as indicated above, with an equimolar amount of thiourea in one inert solvents, such as lower alcohols, such as methanol, ethanol or isopropanol; Hydrocarbons, such as benzene or toluene; halogenated hydrocarbons, such as dichloromethane or chloroform; or ether derivatives, such as methyl tert-butyl ether, tetrahydrofuran or dioxane at temperatures between 0 ° and 150 ° C, preferably 20 ° to 100 ° C.
  • solvents such as lower alcohols, such as methanol, ethanol or isopropanol
  • Hydrocarbons such as benzene or toluene
  • the organic phase is an inert solvent such as tetrahydrofuran, diethyl ether, acetonitrile, pentane , Hexane, benzene, toluene, xylene, chlorobenzene, dichloromethane, chloroform, carbon tetrachloride, nitrobenzene or mixtures of these solvents.
  • an inert solvent such as tetrahydrofuran, diethyl ether, acetonitrile, pentane , Hexane, benzene, toluene, xylene, chlorobenzene, dichloromethane, chloroform, carbon tetrachloride, nitrobenzene or mixtures of these solvents.
  • phase transfer catalysts are quaternary ammonium or
  • Phosphonium salts and crown ethers, cryptands or polyethylene glycols suitable.
  • the reaction of the isothiuronium salts (II) with the isoxazolinones (IV) takes place in a temperature range from -10 ° to 150 ° C. under the conditions of a phase-transfer-catalyzed reaction.
  • the reactants and the catalyst at temperatures of 20 ° to 100 ° C are stirred vigorously under a protective gas atmosphere.
  • the compounds produced can be oxidized and / or halogenated by reactions known to the person skilled in the art.
  • Ph phenyl Table A

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Thiazole And Isothizaole Compounds (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

La présente invention concerne un procédé pour préparer des dérivés de 3-arylméthylthio- et 3-hétéroarylméthylthio-4,5- dihydro-isoxazoline de formule générale (I), par un processus en monoréacteur au cours duquel des sels d'arylméthyl- et hétéroarylméthyl-isothiuronium correspondants sont convertis en la présence d'une base aqueuse d'alcalin ou d'alcalino-terreux, avec un dérivé d'isoxazaline, pour donner les dérivés de 3-arylméthylthio- et 3-hétéroarylméthylthio-4,5-dihydro-isoxazoline correspondants.
EP06776077A 2005-07-06 2006-06-24 Procede pour preparer des derives de 3-arylmethylthio- et 3-heteroarylmethylthio-4,5- dihydro-isoxazoline Withdrawn EP1902038A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005031583A DE102005031583A1 (de) 2005-07-06 2005-07-06 Verfahren zur Herstellung von von 3-Arylmethylthio- und 3-Heteroarylmethylthio-4,5-dihydro-isoxazolin-Derivaten
PCT/EP2006/006123 WO2007003295A2 (fr) 2005-07-06 2006-06-24 Procede pour preparer des derives de 3-arylmethylthio- et 3-heteroarylmethylthio-4,5- dihydro-isoxazoline

Publications (1)

Publication Number Publication Date
EP1902038A2 true EP1902038A2 (fr) 2008-03-26

Family

ID=37530083

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06776077A Withdrawn EP1902038A2 (fr) 2005-07-06 2006-06-24 Procede pour preparer des derives de 3-arylmethylthio- et 3-heteroarylmethylthio-4,5- dihydro-isoxazoline

Country Status (10)

Country Link
US (1) US20070015805A1 (fr)
EP (1) EP1902038A2 (fr)
JP (1) JP2008544996A (fr)
KR (1) KR20080030605A (fr)
CN (1) CN101213181A (fr)
BR (1) BRPI0612729A2 (fr)
CA (1) CA2614239A1 (fr)
DE (1) DE102005031583A1 (fr)
IL (1) IL188431A0 (fr)
WO (1) WO2007003295A2 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2333977T3 (es) * 2004-10-05 2010-03-03 Syngenta Limited Derivados de isoxazolina y su uso como herbicidas.
GB0526044D0 (en) * 2005-12-21 2006-02-01 Syngenta Ltd Novel herbicides
DE102007012168A1 (de) 2007-03-12 2008-09-18 Bayer Cropscience Ag 2-[Heteroarylalkyl-sulfonyl]-thiazol-Derivate und 2-[Heteroarylalkyl-sulfinyl]-thiazol-Derivate, Verfahren zu deren Herstellung, sowie deren Verwendung als Herbizide und Pflanzenwachstumsregulatoren
EP2065374A1 (fr) 2007-11-30 2009-06-03 Bayer CropScience AG Dérivés de 2-(benzyl- et 1H-pyrazol-4-ylmethyl)sulfinyl-thiazole en tant qu'herbicides et régulateurs de la croissance de plantes
EP2065373A1 (fr) 2007-11-30 2009-06-03 Bayer CropScience AG Dérivés de chirale 3-(benzylsulfinyl)-5,5-dimethyl-4,5-dihydroisoxazole et dérivés de 5,5-dimethyl-3-[(1H-pyrazol-4-ylmethyl) sulfinyl]-4,5-dihydroisoxazole, leur procédé de fabrication ainsi que leur utilisation en tant qu'herbicides et régulateurs de croissance des plantes
EP2112143A1 (fr) 2008-04-22 2009-10-28 Bayer CropScience AG Dérivés de 2-(benzylsulfinyle)-oxazole, dérivés chirales de 2-(benzylsulfinyle) et dérivés d'oxazole 2-(benzylsulfanyle), leur procédé de preparation ainsi que leur utilisation en tant qu'herbicides et régulateurs de croissances des plantes
EP2112149A1 (fr) 2008-04-22 2009-10-28 Bayer CropScience Aktiengesellschaft Dérivés de 2-[(1H-pyrazol-4-ylméthyl)-sulfonyle]-oxazole, dérivés de 2-[(1H-pyrazol-4-ylméthyl)-sulfanyle]-oxazole et dérivés chiraux de 2-[(1H-pyrazol-4-ylméthyl)-sulfinyle]-oxazole, leur procédé de fabrication ainsi que leur utilisation en tant qu'herbicides et régulateurs de croissance des plantes
EP2272846A1 (fr) * 2009-06-23 2011-01-12 Bayer CropScience AG Dérivés de thiazolylpipéridine en tant que fongicide
CN103145626B (zh) * 2013-02-28 2015-02-11 山东大学 一种合成4-氨基-2-甲巯基嘧啶-5-甲醛的方法
MX2022005121A (es) 2019-10-31 2022-12-13 Kumiai Chemical Industry Co Herbicida y método de producción para el intermediario del mismo.
CN113754648B (zh) * 2020-06-02 2023-02-17 山东润博生物科技有限公司 一种砜吡草唑及其中间体的制备方法
CN112110912B (zh) * 2020-07-31 2022-07-05 绍兴贝斯美化工股份有限公司 一种合成硫醚类中间体的方法
CN114075149A (zh) * 2020-08-20 2022-02-22 宁夏苏融达化工有限公司 含二氟苯基的杂环化合物及其应用
IN202121023677A (fr) * 2021-05-27 2022-12-02
WO2023194957A1 (fr) * 2022-04-08 2023-10-12 Upl Limited Procédé de préparation de 3-[5-(difluorométhoxy)-1-méthyl-3-(trifluorométhyl)pyrazol-4-ylméthylsulfonyl]-4,5-dihydro-5,5-diméthyl-1,2-oxazole et de ses intermédiaires

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100602776B1 (ko) * 1999-08-10 2006-07-20 구미아이 가가쿠 고교 가부시키가이샤 이소옥사졸린유도체 및 이것을 유효성분으로 하는 제초제
JP4465133B2 (ja) * 2001-02-08 2010-05-19 クミアイ化学工業株式会社 イソオキサゾリン誘導体及びこれを有効成分とする除草剤
DE60238194D1 (de) * 2001-06-21 2010-12-16 Kumiai Chemical Industry Co Isoxazolinderivate und herbizide
RS53725B1 (sr) * 2002-08-01 2015-06-30 Ihara Chemical Industry Co. Ltd. Derivati pirazola i postupak njihovog dobijanja

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007003295A2 *

Also Published As

Publication number Publication date
IL188431A0 (en) 2008-11-03
BRPI0612729A2 (pt) 2010-11-30
DE102005031583A1 (de) 2007-01-25
CA2614239A1 (fr) 2007-01-11
KR20080030605A (ko) 2008-04-04
JP2008544996A (ja) 2008-12-11
US20070015805A1 (en) 2007-01-18
WO2007003295A3 (fr) 2007-07-19
WO2007003295A2 (fr) 2007-01-11
CN101213181A (zh) 2008-07-02

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