WO2005095352A1 - ５－ヒドロキシ－４－チオメチルピラゾール化合物の製造方法 - Google Patents

５－ヒドロキシ－４－チオメチルピラゾール化合物の製造方法 Download PDF

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WO2005095352A1
WO2005095352A1 PCT/JP2005/006806 JP2005006806W WO2005095352A1 WO 2005095352 A1 WO2005095352 A1 WO 2005095352A1 JP 2005006806 W JP2005006806 W JP 2005006806W WO 2005095352 A1 WO2005095352 A1 WO 2005095352A1
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group
hydroxy
compound
general formula
reaction
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PCT/JP2005/006806
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English (en)
French (fr)
Japanese (ja)
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Yukio Uchida
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Ihara Chemical Industry Co., Ltd.
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Priority to MXPA06011130 priority Critical patent/MX280092B/es
Priority to PL05728918T priority patent/PL1767528T3/pl
Priority to NZ550143A priority patent/NZ550143A/en
Priority to KR1020067019480A priority patent/KR101205731B1/ko
Priority to CN2005800106359A priority patent/CN1938278B/zh
Priority to BRPI0509353A priority patent/BRPI0509353B1/pt
Priority to US10/594,710 priority patent/US7488831B2/en
Priority to CA2560936A priority patent/CA2560936C/en
Priority to ES05728918.3T priority patent/ES2508765T3/es
Priority to AU2005228017A priority patent/AU2005228017B2/en
Application filed by Ihara Chemical Industry Co., Ltd. filed Critical Ihara Chemical Industry Co., Ltd.
Priority to UAA200611331A priority patent/UA83910C2/ru
Priority to EP05728918.3A priority patent/EP1767528B1/en
Publication of WO2005095352A1 publication Critical patent/WO2005095352A1/ja
Priority to IL178233A priority patent/IL178233A/en

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    • 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
    • C07D231/18—One oxygen or sulfur atom
    • C07D231/20—One oxygen atom attached in position 3 or 5
    • 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
    • C07D231/28—Two oxygen or sulfur atoms
    • C07D231/30—Two oxygen or sulfur atoms attached in positions 3 and 5
    • 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 present invention relates to a method for producing a 5-hydroxy 4-thiomethyl virazole compound useful as an intermediate for producing pharmaceuticals and agricultural chemicals.
  • the 5-hydroxy-4-thiomethylpyrazole compound obtained by the present invention is useful as an intermediate for producing pharmaceuticals and agricultural chemicals.
  • a process for producing the 4-chloromethylpyrazole compound that is the raw material of the above method For example, a method of directly methylating a 4-position unsubstituted pyrazole compound is known (see Non-Patent Document 1), but this reaction is based on the carcinogenic substance Bis (chloro). Methyl) Because of the by-product of ether, there are many problems in the industrial process and it is difficult to adopt.
  • Patent Document 1 International Publication No. WO 2 0 0 4/0 1 3 1 0 6 (Non-Patent Document 1) Journal of Chemical Society (
  • a special reaction apparatus, an expensive catalyst, or a transition metal is used from a 5-hydroxyvirazole compound represented by the following general formula (1).
  • the following general formula (3) shows good yield in a single step under a simple operation method and mild conditions.
  • the 5-hydroxy-4-thiomethyl virazole compound represented is produced.
  • no harmful waste derived from a catalyst or a transition metal is substantially generated. Therefore, it is environmentally friendly and has high industrial utility value.
  • the method is more environmentally friendly and has a high industrial utility value.
  • the present invention includes, for example, the following embodiments [1] to [6]. [1] General formula (1)
  • R 2 represents an electron-withdrawing group.
  • X represents a hydrogen atom or a metal
  • R 3 represents an alkyl group, an aromatic hydrocarbon group which may have a substituent, or a heterocyclic group which may have a substituent
  • n represents Indicates 0 or 2.
  • the present invention relates to a 5-hydroxyhydrazole compound represented by the general formula (1) in the presence of a base and formaldehyde.
  • the present invention relates to a process for producing a 5-hydroxy-4-thiomethylbiazole compound represented by the general formula (3), characterized by reacting a sulfur compound represented by (2).
  • the 5-hydroxypyrazole compound and the product 5-hydroxy-4-thiomethylpyrazole compound represented by the general formula (3) may exist as ketenols tautomers.
  • the structure of the raw material compound and the product is represented by the enol form as represented by the general formula (1) or the general formula (3).
  • the composition ratio of the keto-enol tautomer may vary depending on the etc., and even in such a case, both the keto / enol isomers are the raw materials and products of the method of the present invention. include.
  • the method for obtaining the 5-hydroxyvirazole compound represented by the general formula (1) is not particularly limited. That is, any of the methods exemplified below may be used, and other methods may be used.
  • ketoester compound is reacted with hydrazines, specifically, 4,4,4-trifluoroacetic acid ethyl ester and methylhydrazine are heated to reflux in an aqueous solvent for 2 hours, It is possible to synthesize 1-methyl-1-5-hydroxy3-trifluoromethylpyrazole with a yield of 4 9%.
  • hydrazines specifically, 4,4,4-trifluoroacetic acid ethyl ester and methylhydrazine are heated to reflux in an aqueous solvent for 2 hours
  • Japanese Patent Publication No. 5 1-3 3 5 5 6 discloses a method for obtaining a 3-cyano-5-hydroxypyrazole compound by a reaction between ⁇ -cyanosuccinic acid and diazonium salt.
  • 1 to 6 carbon atoms (Hereinafter, for example, in the case of 1 to 6 carbon atoms, this is abbreviated as C 1 to C 6 J.) Linear or branched C 1 ⁇ C6 alkyl group;
  • the aromatic hydrocarbon group may have one or more substituents such as the following (3.1) to (3.21).
  • a nitrogen atom such as bromo, chloro mouth, fluoreo mouth, and iodine
  • a linear or branched C 1 -C 6 hydroxyalkyl group such as a hydroxymethyl group, 1-hydroxychetinore group, etc .
  • (3.6) straight chain or branched (C1-C6 alkoxy) mono (C1-C6 alkyl) group such as, for example, a methoxymethyl group, a 1-methoxetyl group, a monoethoxychetyl group;
  • a linear or branched (C1-C6 alkoxy) carbonyl group such as a methoxycarbonyl group, an ethoxycanonboninole group;
  • a benzyl group, a naphthyl group, or the like wherein the number of atoms constituting the ring is 6 to 14, preferably 6: an arylcarbonyl group of L 0
  • the number of atoms constituting the ring is 5 to 14, having at least one selected from a nitrogen atom, an oxygen atom, and a sulfur atom such as a fullylcarbonyl group as a hetero atom; Preferably 5 to 10 monocyclic or condensed heterocyclic heterocarbonyl groups; (3.13) nitro group;
  • a linear or branched mono- or di (C1-C6 alkyl) amino group such as a methylamino group, a dimethylamino group, an ethylamino group, or a jetylamino group;
  • linear or branched (C1-C6 alkyl) carbonylamino group such as acetylamino group, propionylamino group, and propyllylamino group;
  • linear or branched hydroxycarbonyl such as hydroxycarbonylmethyl group, 1-hydroxycarbonylethyl group, etc.
  • linear or branched (C1-C6alkoxy) carbonyl such as methoxycarbonylmethyl group, 1-methoxy group, norbornylethyl group, and 1-ethoxycarbonyl group.
  • a linear or branched aminocarbonyl mono (C 1 -C 6 anoalkyl) group such as, for example, an aminocarbonylmethyl group, a 1-aminocarbonylethyl group;
  • straight chain or branched (C1-C6 alkyl) such as methylaminocarbonylmethyl group, 1-methylamino cyanoreponinoreethyl group, 1-ethenoreamino anoreponinoreethyl group, etc.
  • the aromatic heterocyclic group may have one or more substituents such as the following (4.1) to (4.19).
  • a linear or branched C1-C6 alkoxy group such as a methoxy group, an ethoxy group, an n-propoxy group, an isopropoxy group;
  • alkali metal salts such as sodium, calcium, and lithium salts, and alkaline earth metal salts such as calcium, barium, and magnesium salts.
  • alkali metal salts such as sodium, calcium, and lithium salts
  • alkaline earth metal salts such as calcium, barium, and magnesium salts.
  • a linear or branched mono- or di (C :! to C6 alkyl) amino group such as a methylamino group, a dimethylamino group, an ethylamino group, a jetylamino group, etc .;
  • linear or branched (C1-C6 alkyl) carboninoreamino group such as an acetylamino group, a propionylamino group, and a pentylamino group;
  • a benzyl group, a naphthoyl group, or the like an aryl group having 6 to 14 atoms, preferably 6 to 10 atoms constituting a ring.
  • At least one selected from a nitrogen atom, an oxygen atom, and a sulfur atom is a hetero atom.
  • a nitrogen atom, an oxygen atom, and a sulfur atom such as a pyridinore force norebonyl group, a chenoreno force force lponinole group, and a furylcarbonyl group
  • a hetero atom 1 to 4 substituents such as a monocarbonyl or condensed ring heterocarbonyl group having 5 to 14 atoms, preferably 5 to 10 atoms constituting the ring.
  • a hydrofuryl group a vinyl group, a thiolanyl group, a thienyl group, a pyrrolidinyl group, an indolinyl group, a piperidinyl group, an imidazolidinyl group, a piperazinyl group, etc.
  • the number of atoms constituting the ring is 1 to 4 as a hetero atom, at least one selected from a nitrogen atom, an oxygen atom, and a sulfur atom, preferably 5 to 14 and preferably 5
  • alkali metal salts such as sodium, calcium, and lithium salts
  • alkaline earth metal salts such as calcium, barium, and magnesium salts.
  • nitrogen atoms such as promo, black mouth, funoleo mouth, and iodine;
  • methylamino group dimethylamino group, ethyl Linear or branched mono- or di (C1-C6 alkyl) amino groups, such as amino groups and cetylamino groups;
  • straight chain or branched (C1-C6 alkyl) carbonylamino group such as acetylamino group, propionylamino group, propylamino group, etc .;
  • linear or branched (C1-C6 alkyl) carbonyl group such as, for example, methylcarbonyl group, ethylcarbonyl group, etc .;
  • At least one selected from a nitrogen atom, an oxygen atom, and a sulfur atom such as a pyridylcarbonyl group, a cenylcarbonyl group, a furylcarbonyl group, etc. It may have one or more substituents such as a monocyclic or condensed heterocyclic aryl group having 5 to 14 atoms, preferably 5 to 10 atoms constituting the ring.
  • the electron withdrawing group represented by R 2 in the general formula (1) is an atomic group that attracts electrons from the partner due to an induced effect, and an aromatic hydrocarbon group having these atomic groups or an aromatic group having these atomic groups. Means a heterocyclic group Taste.
  • Specific examples of the electron-withdrawing group R 2 include the following.
  • Linear or branched C1-C6 non-alkyl group such as difluoromethyl group and trifluoromethyl group
  • carboxyl group or its alkali salt such as sodium salt, calcium salt and lithium salt
  • Metal salts of carboxyl groups typified by alkaline earth metal salts such as lithium metal salts, calcium salts, sodium salts, magnesium salts;
  • a linear or branched (C1-C6 alkoxy) carbonyl group such as a methoxycarbonyl group, an ethoxycarbonyl group;
  • halogen atoms such as bromo, chloro, fluoro, and iodine; nitro group; formyl group;
  • a linear or branched (C1-C6 alkyl) carbonyl group such as a methylcarbonyl group (acetyl group), an ethylcarbonyl group;
  • an arylcarbonyl group having 6 to 14 atoms, preferably 6 to 10 atoms constituting a ring such as a benzoyl group or a naphthoyl group;
  • a nitrogen atom, an oxygen atom, and a sulfur atom as a hetero atom such as a pyridylcarbonyl group, a carbonylcarbonyl group, a fullcarbonyl group, etc.
  • linear or branched mono- or di (C 1 -C 6 arnolealkyl) amino decanolonyl group such as aminocarbonyl group, methylamino force nolevonyl group, dimethylaminocarbonyl group; cyano group;
  • chlorophenyl group for example, 2,4-dichlorophenyl group
  • carboxyphenyl group nitrophenyl group, etc.
  • It has 1 or more atomic groups as a substituent, and the number of atoms constituting the ring is 6 to 14, preferably 6 to 10
  • C 1 -C 6 haloanolyl group typified by trifluoromethyl; having one or more atomic groups as substituents that attract electrons from the other party due to inductive effects, typified by 2,4-dichlorophenyl
  • the 5-hydroxyhydroxylazole compound represented by the general formula (1) Specifically, for example, 5—hydroxyl 3 —trifluoromethylpyrazole, 3 —ethoxycarbonyl 1 5 —hydroxypi la zonole, 3 —acetinore _ 5 — Doroxypyrazolone, 3 — Benzoinole 1 — Hydroxypyrazole, 5 — Hydroxyxy 3 — (3 — Pyridylcarbonyl) Pyrazole, 3 — Sheano 5 — Hydroxyvirazole, 5 — Hy 1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1 1 1—Methylpyrazole, 5—Hydroxyl 1—Methyl 1—3—Nitropyrazole, 5 —Hydroquissy 1—Methyl 1—3 — (2—Chenorecanoreboninole ) Pi Zole, 5 — Hydroxy 1
  • 2-Pyrimidyl) — 3 examples include trifluoromethyl bilazole.
  • the aromatic hydrocarbon group is, for example, , Methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, sec-butyl group, t-butyl group, n-pentyl group, n-hexyl group, linear or branched A C1-C6 alkyl group;
  • linear or branched C 1 to C 6 alkoxy groups such as, for example, a methoxy group, an ethoxy group, an n-propoxy group, an isopropoxy group;
  • a straight chain or branched C1-C6 hydroxyalkyl group such as, for example, a hydroxymethyl group, a hydroxychetyl group;
  • straight chain or branched (C1-C6 alkoxy) one (C1-C6 alkyl) group such as, for example, a methoxymethyl group, a methoxetyl group, an ethoxychetyl group;
  • linear or branched C 1 -C 6 neuroalkyl group such as fluorelomethyl group, difluoromethyl group, trifluoromethyl group, etc .
  • carboxy group, or its sodium salt calcium Metal salt of carboxyl group represented by alkali metal salt such as salt, lithium salt and calcium salt, calcium salt, barium salt, magnesium salt, etc.
  • a linear or branched (C1-C6 alkoxy) carbonyl group such as a methoxycarbonyl group, an ethoxycarbonyl group;
  • Halogen sources such as bromo, black mouth, fluoro, and iodine Child; nitro group; amino group;
  • a linear or branched mono- or di (C1-C6 alkyl) amino group such as a methylamino group, a dimethylamino group, an ethylamino group, or a jetylamino group;
  • linear or branched C1-C6 alkylcarbonylamino group such as acetylamino group, propionylamino group, petitylamino group, etc .; cyano group;
  • (11) straight chain or branched (C1-C6 alkyl) carbonyl group such as, for example, a methinorecanole poninore group, an ethinore force norebonyl group;
  • At least one selected from a nitrogen atom, an oxygen atom, and a sulfur atom, such as a pyridinorecanol carbonyl group, a chain carbonyl group, and a furyl carbonyl group is a hetero atom 1 It may have 1 or more substituents such as a heterocycle carbonyl group of a monocyclic or condensed ring having 5 to 14 atoms, preferably 5 to 10 atoms. . ;
  • Condensed aromatic heterocyclic group includes, for example, a methyl group, an ethyl group, an n-propyl group, an iso-propyl group, an n-butyl group, a sec-butynole group, t Butyl group, n- pentyl group, n- 005006806 linear or branched C 1 -C 6 alkyl group, such as a hexyl group;
  • a linear or branched C1-C6 alkoxy group such as a methoxy group, an ethoxy group, an n-propoxy group, an isopropoxy group;
  • a linear or branched C 1 to C 6 hydroxyalkyl group such as a hydroxymethyl group or a hydroxychetyl group
  • a straight chain or branched (C1-C6 alkoxy)-(Cl-C6-anolequinol) group such as a methoxymethyl group, a methoxycetyl group, an ethoxyethyl group;
  • a linear or branched C 1 -C 6 neuroalkyl group such as a fluoromethyl group, a difluoromethyl group, a trifluoromethyl group;
  • Carboxyl group or alkaline metal salt such as sodium salt, calcium salt, lithium salt, etc., or alkaline metal salt such as calcium salt, barium salt, magnesium salt, etc. Represented by a metal of a carboxyl group 3 ⁇ 4;
  • (2 1) For example, a straight chain or branched (C1-C6 alkoxy) carbonyl group such as a methoxy carbonylonole group, an ethoxycarbonyl group, etc .;
  • halogen atoms such as bromo, chloro mouth, funoleo mouth, and iodide; nitro group; amino group;
  • linear or branched (C1-C6 alkyl) carboamino group such as acetylamino group, propionylamino group, pentylamino group, etc .; cyano group; formyl group;
  • the ring may have one or more substituents such as a monocyclic or condensed heterocyclic carbonyl group having 5 to 14 atoms, preferably 5 to 10 atoms constituting the ring.
  • a hydrofuryl group for example, represented by a hydrofuryl group, a vinyl group, a thiolanyl group, a thianyl group, a pyrrolidinyl group, an indolinyl group, a piperidinyl group, an imidazolidinyl group, a piperazinyl group, etc. 1 to 4 at least one selected from the group consisting of a nitrogen atom, an oxygen atom, and a sulfur atom, and the number of atoms constituting the ring is 5 to 14, preferably 5 to 10.
  • a monocyclic or condensed heterocyclic group having no aromaticity includes, for example, a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butynole group, a sec-butynole group
  • a straight chain or branched C1-C6 alkyl group such as a n-pentyl group or an n-hexyl group; a hydroxyl group;
  • (28) straight chain or branched C1-C6 alkoxy groups such as, for example, a methoxy group, an ethoxy group, an n-propoxy group, an isopropoxy group;
  • a straight chain or branched C1-C6 hydroxyalkyl group such as, for example, a hydroxymethyl group, a hydroxychetyl group;
  • a linear or branched (C 1 -C 6 alkoxy)-(C 1 -C 6 alkenoquinole) group such as a methoxy dimethyl group, a methoxetyl group, an ethoxy chelyl group;
  • linear or branched C1-C6 haloalkyl group such as fluoromethyl group, difluoromethyl group, trifluoromethyl group, etc .; force lpoxyl group, or sodium salt, calcium salt thereof Lithium salt etc.
  • halogen atoms such as bromine, black mouth, funoleo mouth, and iodine; nitro group; amino group;
  • a linear or branched mono- or di (C 1 -C 6 alkyl) amino group such as a methylamino group, a dimethylamino group, an ethylamino group, and a jetylamino group;
  • linear or branched (C1-C6 alkyl) carbonylamino group such as acetylamino group, propionylamino group, butyrinoreamino group, etc .; Cyano group; Honolemil group;
  • a nitrogen atom, an oxygen atom, and a sulfur atom such as a pyridylcananolone group, a cheninolecanonboninole group, a furylcarbonyl group, etc.
  • the ring may have one or more substituents such as a monocyclic or condensed heterocyclic carbonyl group having 5 to 14 atoms, preferably 5 to 10 atoms constituting the ring. And a heterocyclic group having or not having aromaticity.
  • X in the general formula (2) is, for example, a hydrogen atom; for example, an alkali metal such as sodium, calcium, or lithium, or an alkaline earth metal such as magnesium or calcium.
  • the representative metal atoms are shown.
  • n in the general formula (2) is 0, it represents a thiol or a salt thereof, and when n is 2, it represents a sulfinic acid or a salt thereof.
  • the sulfur compounds used in this reaction are alkali metals such as sodium, calcium, and lithium, and Al forces such as magnesium and calcium, even if X in the general formula (2) is a hydrogen atom.
  • the sulfur compound is a thiol (that is, a compound in which n is 0 in the general formula (2))
  • the reaction between the corresponding alkyl halide and thiourea may be used.
  • the thiol to be used as a raw material for this reaction by hydrolyzing a precursor that produces a thiol represented by an isothiouronium salt, etc. A kind may be formed and used in the system.
  • sulfur compound represented by the general formula (2) include, for example, sodium thiomethoxide, sodium thioethoxide, 2-butanethionole, thiophenol, 2-ethino.
  • the above reaction is carried out in the presence of formaldehyde.
  • the formaldehyde used in this reaction is not particularly limited in form and may be in any form, but 35 to 50% represented by 35% formalin, which is easily available as a commercial product.
  • Formaldehyde aqueous solution, paraformaldehyde (formaldehyde polymer, which forms formaldehyde in the system by hydrolysis, so it can be used as an equivalent of formaldehyde) Is preferable because it is easy to operate.
  • the amount of formaldehyde used may be equal to or greater than the equivalent of 1 equivalent of the raw material compound represented by the general formula (1), but relative to 1 mole of the raw material compound represented by the general formula (1). Usually 1.0 to 5.0 equivalents, preferably 1.0 to 3.0 equivalents.
  • the sulfur compound represented by the general formula (2) may be equal to or more than the equivalent amount of the raw material compound of (1), but is generally 1.0 to 1 mol per 1 mol of the raw material compound represented by the general formula (1). 2.0 equivalents, preferably 1.0 to L: 2 equivalents.
  • the reaction in the present invention is performed in the presence of a base.
  • a base examples include the following.
  • hydrogen hydride metal such as sodium hydride, potassium hydride, lithium hydride, etc .
  • Alkali metals such as metallic sodium, metallic calcium, metallic lithium
  • Al metal hydroxides such as sodium hydroxide, calcium hydroxide, lithium hydroxide, etc .
  • Al-rich earth metal hydroxides such as barium hydroxide, magnesium hydroxide, calcium hydroxide, etc .
  • Alkali metal carbonates such as sodium carbonate, calcium carbonate, sodium hydrogen carbonate, calcium hydrogen carbonate;
  • inorganic bases represented by alkaline earth metal oxides such as barium oxide, magnesium oxide and calcium oxide; and sodium methoxide, sodium ethoxide, and calcium methoxide.
  • alkaline earth metal oxides such as barium oxide, magnesium oxide and calcium oxide
  • sodium methoxide, sodium ethoxide, and calcium methoxide metal alkoxides
  • Metal alkoxides such as carbon dioxide, calcium ethoxide and tert-butoxide
  • An organic base typified by an alkyl metal such as ptyllithium.
  • alkali metal hydroxides or metal alkoxides are preferable, and by performing the reaction with an aqueous solvent, it is possible to reduce loads such as wastewater post-treatment.
  • aluminum hydroxide is particularly preferred, especially sodium hydroxide.
  • the amount of the base used may be any as long as the reaction proceeds sufficiently, but it is 1.0 relative to 1 mol of the 5-hydroxyvilazole compound (raw compound) represented by the general formula (1).
  • An example is a range of ⁇ 20 moles, preferably 1.5 to 10 moles, more preferably 1.5 to 3.0 moles.
  • the reaction of the present invention may be performed in the presence of a solvent, if necessary.
  • the solvent used in this reaction is not particularly limited as long as it does not inhibit the reaction.
  • water alcohols such as methanol and ethanol
  • aromatics such as toluene, xylene and chlorobenzene.
  • Hydrocarbons Halogenated aliphatic hydrocarbons such as dichloromethan and chloroform; dimethylformamide, dimethylacetamide, N-methylpyrrolidone, tetramethylurea, hexamethylphosphoric acid
  • Non-proton polar solvents such as amide (HMPA) and propylene carbonate
  • Ether solvents such as diethyl ether, tetrahydrofuran and dioxane
  • Fats such as pentane and n-hexane Group hydrocarbons and the like.
  • This solvent can be used alone or as a mixed solvent of any mixing ratio. From the viewpoint of solubility and reactivity of the base, it is preferable to use water or alcohols, and it is particularly preferable to carry out in water or methanol.
  • the amount of the solvent is not limited as long as the reaction system can be sufficiently stirred, but it is usually 0 per mol of the 5-hydroxyvirazole compound (raw material compound) represented by the general formula (1). It may be in the range of 0.5 to 10 L (Little Nore), preferably 0.5 to 2 L.
  • reaction temperature of this reaction can be exemplified by the range of 0 ° C to the reflux temperature of the solvent used, but preferably the reaction is carried out at 20 ° C to 50 ° C, particularly stirring at room temperature. Good yield.
  • the reaction time of this reaction is not particularly limited, but usually the reaction is sufficiently completed in 1 hour to 10 hours.
  • the 5-hydroxy-4-thiomethylpyrazole compound represented by the general formula (3) can be produced with a good yield under a simple operation method and mild conditions.
  • the obtained 5-hydroxy--4-thiomethylbiazole compound represented by the general formula (3) is a pharmaceutical and agricultural chemical. It is a useful compound as an intermediate material.
  • the obtained organic layer was washed successively with 50 mL of water twice and 30 mL of saturated brine, and then the solvent was distilled off under reduced pressure. To the residue obtained by concentration, 100 mL of ethanol was added. Under stirring, the solution was cooled to 10 ° C. or lower, and 35% aqueous methylhydrazine solution (13.1 g, 0.1 m o 1) was added dropwise over 1 hour. After the dropping, the mixture was stirred at room temperature for 1 hour and then at 80 ° C. for 3 hours. After the reaction, the mixture was cooled to room temperature, 300 mL of water was added, and the resulting crystals were collected by filtration. The crystals were washed twice with 50 mL of water and dried in a hot air dryer to give 12.3 g of the title compound (yield; 50. 2%) as white crystals. I got it.
  • the precipitated crystals were collected by filtration and washed twice with 5 mL of water. By drying with a warm air dryer, 1.6 g (yield 72.7%) of the title compound was obtained as pale yellow crystals. The obtained crystals were recrystallized from water-methanol to obtain white crystals.
  • Example 5 3-[(5-Hydroxy 1-Methyl-1-Trifluoromethylpyrazo Mouth 4-4-Inole) Monomethylthio] 1-4,5-Dihydro 5,5-Dimethylisoxazole Synthesis Example In the reaction described in 4, the base was changed to 4.2 g (30 mm 0 1) of calcium carbonate. Otherwise, the same operation as in Example 4 was carried out to obtain 2.3 g (yield 74.2%) of the title compound as pale yellow crystals. The 1 H-NMR spectrum was consistent with Example 3.
  • Example 8 4 1 [(5-Hydroxy 1-methyl 3-trifluoro mechinorepyrazo mouth 4-inole) -methinores norefononole] Tonoleen synthesis
  • Phenyl 1 3 Trifluoromethylpyrazole 2.3 g (1 0 mmo 1) and sodium hydroxide 0.6 g (1 5 mm) synthesized in Reference Example 2 o 1) was dissolved in 10 mL of water. While stirring the solution at room temperature, 1.7 g (20 mM o 1) of 35% formalin solution was added dropwise, and the mixture was stirred at the same temperature for 1 hour (reaction solution 1).
  • reaction solution 2 was added dropwise to (reaction solution 1) and stirred for 2 hours. After the reaction, 6.0 g (60 mm 0 1) of 35% hydrochloric acid was added dropwise. Next, sodium hydrogen carbonate was carefully added so that the pH of the reaction solution was 7. Extraction was performed twice with 20 mL of ethyl acetate, and the resulting toluene layer was washed successively with 10 mL of water and 10 mL of saturated brine. After drying with anhydrous sodium sulfate, ethyl acetate was distilled off under reduced pressure to obtain 2.4 g (yield 81.3%) of the title compound as a viscous substance. The viscous material crystallized when left at room temperature for 2 days.
  • a novel industrial process for the preparation of 5-hydroxy-4-thiomethylbiazole compounds is provided. According to the method of the present invention, a simple operation can be carried out from a 5-hydroxypyrazole compound represented by the general formula (1) without using a special reaction apparatus, an expensive catalyst or a transition metal. Under conditions and mild conditions, the 5-hydroxy-4-thiomethylpyrazole compound is produced in good yield in a single step. Moreover, since no harmful waste derived from catalysts or transition metals is substantially produced, it is environmentally friendly and has high industrial utility value.

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PCT/JP2005/006806 2004-03-31 2005-03-31 ５－ヒドロキシ－４－チオメチルピラゾール化合物の製造方法 WO2005095352A1 (ja)

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EP05728918.3A EP1767528B1 (en) 2004-03-31 2005-03-31 Process for producing 5-hydroxy-4-thiomethylpyrazole compound
US10/594,710 US7488831B2 (en) 2004-03-31 2005-03-31 Process for producing 5-hydroxy-4-thiomethylpyrazole compound
NZ550143A NZ550143A (en) 2004-03-31 2005-03-31 Process for producing 5-hydroxy-4-thiomethylpyrazole compound
KR1020067019480A KR101205731B1 (ko) 2004-03-31 2005-03-31 5-히드록시-4-티오메틸피라졸 화합물의 제조 방법
CN2005800106359A CN1938278B (zh) 2004-03-31 2005-03-31 5-羟基-4-硫甲基吡唑化合物的制备方法
BRPI0509353A BRPI0509353B1 (pt) 2004-03-31 2005-03-31 processo para a produção de um composto de 5-hidróxi-4-tiometilpirazol
ES05728918.3T ES2508765T3 (es) 2004-03-31 2005-03-31 Procedimiento para producir un compuesto de 5-hidroxi-4-tiometilpirazol
MXPA06011130 MX280092B (es) 2004-03-31 2005-03-31 Proceso para producir un compuesto de 5 - hidroxi - 4 - tiometilpirazol.
CA2560936A CA2560936C (en) 2004-03-31 2005-03-31 Process for producing 5-hydroxy-4-thiomethylpyrazole compound
AU2005228017A AU2005228017B2 (en) 2004-03-31 2005-03-31 Process for producing 5-hydroxy-4-thiomethylpyrazole compound
PL05728918T PL1767528T3 (pl) 2004-03-31 2005-03-31 Sposób wytwarzania związku 5-hydroksy-4-tiometylopirazolowego
UAA200611331A UA83910C2 (ru) 2004-03-31 2005-03-31 Способ получения 5-гидрокси-4-тиометилпиразольного соединения
IL178233A IL178233A (en) 2004-03-31 2006-09-21 Process for making 5-hydroxy-4-thiomethylpyrazole

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JP2013512201A (ja) * 2009-11-26 2013-04-11 ビーエーエスエフ ソシエタス・ヨーロピア ５，５−二置換４，５−ジヒドロイソオキサゾール−３−チオカルボキサミジン塩の製造方法
WO2019131715A1 (ja) * 2017-12-27 2019-07-04 クミアイ化学工業株式会社 チオカルボキサミジン塩化合物の製造方法
WO2021002484A2 (ja) 2019-10-31 2021-01-07 クミアイ化学工業株式会社 除草剤及びその中間体の製造方法
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EP3936503A1 (en) 2020-07-10 2022-01-12 Adama Agan Ltd. Process and intermediates for the preparation of pyroxasulfone, fenoxasulfone and various sulfone analogs of 5,5-dimethyl-4h-1,2-oxazole
WO2023074828A1 (ja) 2021-10-29 2023-05-04 クミアイ化学工業株式会社 ジスルフィド化合物、ポリスルフィド化合物及びその用途
WO2023095142A1 (en) 2021-11-28 2023-06-01 Adama Agan Ltd. High load suspension concentrate compositions
RU2819608C1 (ru) * 2023-01-30 2024-05-21 Федеральное государственное бюджетное научное учреждение Уфимский федеральный исследовательский центр Российской академии наук Способ получения тиометилированных производных пиррола и 2-(бензпиррол-3-ил)уксусной кислоты

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AU2005320157B9 (en) * 2004-12-20 2011-07-21 Kumiai Chemical Industry Co., Ltd. Process for production of (4,5-dihydroisoxazol-3-yl)thio- carboxamidine salts
JPWO2006068092A1 (ja) * 2004-12-20 2008-06-12 イハラケミカル工業株式会社 （４，５−ジヒドロイソオキサゾロ−３−イル）チオカルボキサミジン塩化合物の製造方法
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AU2005320157B2 (en) * 2004-12-20 2011-04-28 Kumiai Chemical Industry Co., Ltd. Process for production of (4,5-dihydroisoxazol-3-yl)thio- carboxamidine salts
WO2006068092A1 (ja) * 2004-12-20 2006-06-29 Ihara Chemical Industry Co., Ltd. （４，５－ジヒドロイソオキサゾロ－３－イル）チオカルボキサミジン塩化合物の製造方法
WO2007013536A1 (ja) * 2005-07-27 2007-02-01 Ihara Chemical Industry Co., Ltd. ５−ヒドロキシ−１−アルキルピラゾール誘導体の製造方法
WO2007094225A1 (ja) * 2006-02-14 2007-08-23 Ihara Chemical Industry Co., Ltd. ５－アルコキシ－４－ヒドロキシメチルピラゾール化合物の製造方法
US7812175B2 (en) 2006-02-14 2010-10-12 Ihara Chemical Industry Co., Ltd. Process for production of 5-alkoxy-4-hydroxymethylpyrazole compound
JP5052495B2 (ja) * 2006-02-14 2012-10-17 イハラケミカル工業株式会社 ５−アルコキシ−４−ヒドロキシメチルピラゾール化合物の製造方法
HRP20080440B1 (hr) * 2006-02-14 2014-11-21 Ihara Chemical Industry Co., Ltd. Postupak za proizvodnju spoja 5-alkoksi-4-hidroksimetilpirazola
WO2011033251A1 (en) 2009-09-16 2011-03-24 Syngenta Limited Herbicidal isoxazoline derivatives
WO2011063843A1 (de) 2009-11-26 2011-06-03 Basf Se Verfahren zur herstellung 5,5-disubstituierter 2-isoxazoline
JP2013512201A (ja) * 2009-11-26 2013-04-11 ビーエーエスエフ ソシエタス・ヨーロピア ５，５−二置換４，５−ジヒドロイソオキサゾール−３−チオカルボキサミジン塩の製造方法
US10844024B1 (en) 2017-12-27 2020-11-24 Kumiai Chemical Industry Co., Ltd. Method for producing thiocarboxamidine salt compound
WO2019131715A1 (ja) * 2017-12-27 2019-07-04 クミアイ化学工業株式会社 チオカルボキサミジン塩化合物の製造方法
KR20230053729A (ko) 2019-10-31 2023-04-21 구미아이 가가쿠 고교 가부시키가이샤 제초제 및 그 중간체의 제조방법
WO2021002484A2 (ja) 2019-10-31 2021-01-07 クミアイ化学工業株式会社 除草剤及びその中間体の製造方法
EP4488274A2 (en) 2019-10-31 2025-01-08 Kumiai Chemical Industry Co., Ltd. Herbicide and production method for intermediate thereof
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EP3936503A1 (en) 2020-07-10 2022-01-12 Adama Agan Ltd. Process and intermediates for the preparation of pyroxasulfone, fenoxasulfone and various sulfone analogs of 5,5-dimethyl-4h-1,2-oxazole
EP4177245A1 (en) 2020-07-10 2023-05-10 Adama Agan Ltd. Process and intermediates for the preparation of fenoxasulfone
EP4177252A2 (en) 2020-07-10 2023-05-10 Adama Agan Ltd. Process and intermediates for the preparation of pyroxasulfone, fenoxasulfone and various sulfone analogs of 5,5-dimethyl-4h-1,2-oxazole
EP4177244A2 (en) 2020-07-10 2023-05-10 Adama Agan Ltd. Process and intermediates for the preparation of pyroxasulfone and fenoxasulfone
WO2022009044A1 (en) 2020-07-10 2022-01-13 Adama Agan Ltd. Process and intermediates for the preparation of pyroxasulfone, fenoxasulfone and various sulfone analogs of 5,5-dimethyl-4h-1,2-oxazole
WO2023074828A1 (ja) 2021-10-29 2023-05-04 クミアイ化学工業株式会社 ジスルフィド化合物、ポリスルフィド化合物及びその用途
WO2023095142A1 (en) 2021-11-28 2023-06-01 Adama Agan Ltd. High load suspension concentrate compositions
RU2819608C1 (ru) * 2023-01-30 2024-05-21 Федеральное государственное бюджетное научное учреждение Уфимский федеральный исследовательский центр Российской академии наук Способ получения тиометилированных производных пиррола и 2-(бензпиррол-3-ил)уксусной кислоты

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EP1767528A4 (en) 2010-04-21
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JP4621939B2 (ja) 2011-02-02
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TW200536832A (en) 2005-11-16
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