WO2022191292A1 - 除草剤としてのスルホン誘導体の製造方法 - Google Patents
除草剤としてのスルホン誘導体の製造方法 Download PDFInfo
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- WO2022191292A1 WO2022191292A1 PCT/JP2022/010671 JP2022010671W WO2022191292A1 WO 2022191292 A1 WO2022191292 A1 WO 2022191292A1 JP 2022010671 W JP2022010671 W JP 2022010671W WO 2022191292 A1 WO2022191292 A1 WO 2022191292A1
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- DTQVDTLACAAQTR-UHFFFAOYSA-N Trifluoroacetic acid Chemical compound OC(=O)C(F)(F)F DTQVDTLACAAQTR-UHFFFAOYSA-N 0.000 description 14
- 239000002253 acid Substances 0.000 description 14
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- 125000001309 chloro group Chemical group Cl* 0.000 description 13
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- 229960001716 benzalkonium Drugs 0.000 description 1
- 150000001555 benzenes Chemical class 0.000 description 1
- SRSXLGNVWSONIS-UHFFFAOYSA-N benzenesulfonic acid Chemical compound OS(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-N 0.000 description 1
- 229940092714 benzenesulfonic acid Drugs 0.000 description 1
- KHSLHYAUZSPBIU-UHFFFAOYSA-M benzododecinium bromide Chemical compound [Br-].CCCCCCCCCCCC[N+](C)(C)CC1=CC=CC=C1 KHSLHYAUZSPBIU-UHFFFAOYSA-M 0.000 description 1
- UUZYBYIOAZTMGC-UHFFFAOYSA-M benzyl(trimethyl)azanium;bromide Chemical compound [Br-].C[N+](C)(C)CC1=CC=CC=C1 UUZYBYIOAZTMGC-UHFFFAOYSA-M 0.000 description 1
- KXHPPCXNWTUNSB-UHFFFAOYSA-M benzyl(trimethyl)azanium;chloride Chemical compound [Cl-].C[N+](C)(C)CC1=CC=CC=C1 KXHPPCXNWTUNSB-UHFFFAOYSA-M 0.000 description 1
- VZWMKHUMEIECPK-UHFFFAOYSA-M benzyl-dimethyl-octadecylazanium;bromide Chemical compound [Br-].CCCCCCCCCCCCCCCCCC[N+](C)(C)CC1=CC=CC=C1 VZWMKHUMEIECPK-UHFFFAOYSA-M 0.000 description 1
- 125000001246 bromo group Chemical group Br* 0.000 description 1
- 125000005997 bromomethyl group Chemical group 0.000 description 1
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 description 1
- KVNRLNFWIYMESJ-UHFFFAOYSA-N butyronitrile Chemical compound CCCC#N KVNRLNFWIYMESJ-UHFFFAOYSA-N 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- FOCAUTSVDIKZOP-UHFFFAOYSA-N chloroacetic acid Chemical compound OC(=O)CCl FOCAUTSVDIKZOP-UHFFFAOYSA-N 0.000 description 1
- 125000004775 chlorodifluoromethyl group Chemical group FC(F)(Cl)* 0.000 description 1
- 125000004218 chloromethyl group Chemical group [H]C([H])(Cl)* 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- RFKZUAOAYVHBOY-UHFFFAOYSA-M copper(1+);acetate Chemical compound [Cu+].CC([O-])=O RFKZUAOAYVHBOY-UHFFFAOYSA-M 0.000 description 1
- NKNDPYCGAZPOFS-UHFFFAOYSA-M copper(i) bromide Chemical compound Br[Cu] NKNDPYCGAZPOFS-UHFFFAOYSA-M 0.000 description 1
- LSXDOTMGLUJQCM-UHFFFAOYSA-M copper(i) iodide Chemical compound I[Cu] LSXDOTMGLUJQCM-UHFFFAOYSA-M 0.000 description 1
- 150000003983 crown ethers Chemical class 0.000 description 1
- 125000001995 cyclobutyl group Chemical group [H]C1([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 1
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- 125000001511 cyclopentyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 1
- 125000001559 cyclopropyl group Chemical group [H]C1([H])C([H])([H])C1([H])* 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- AQEFLFZSWDEAIP-UHFFFAOYSA-N di-tert-butyl ether Chemical compound CC(C)(C)OC(C)(C)C AQEFLFZSWDEAIP-UHFFFAOYSA-N 0.000 description 1
- SBZXBUIDTXKZTM-UHFFFAOYSA-N diglyme Chemical compound COCCOCCOC SBZXBUIDTXKZTM-UHFFFAOYSA-N 0.000 description 1
- 150000004683 dihydrates Chemical class 0.000 description 1
- DDPUNZHKLSMIPI-UHFFFAOYSA-N dimethyl(19-phenylnonadecyl)azanium;bromide Chemical compound [Br-].C[NH+](C)CCCCCCCCCCCCCCCCCCCC1=CC=CC=C1 DDPUNZHKLSMIPI-UHFFFAOYSA-N 0.000 description 1
- FAQSSRBQWPBYQC-VGKOASNMSA-N dioxomolybdenum;(z)-4-hydroxypent-3-en-2-one Chemical compound O=[Mo]=O.C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O FAQSSRBQWPBYQC-VGKOASNMSA-N 0.000 description 1
- 239000003480 eluent Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- IDIDIJSLBFQEKY-UHFFFAOYSA-N ethanol;oxovanadium Chemical compound [V]=O.CCO.CCO.CCO IDIDIJSLBFQEKY-UHFFFAOYSA-N 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- ZJXZSIYSNXKHEA-UHFFFAOYSA-N ethyl dihydrogen phosphate Chemical compound CCOP(O)(O)=O ZJXZSIYSNXKHEA-UHFFFAOYSA-N 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910021480 group 4 element Inorganic materials 0.000 description 1
- 229910021478 group 5 element Inorganic materials 0.000 description 1
- 229910021476 group 6 element Inorganic materials 0.000 description 1
- 229910021474 group 7 element Inorganic materials 0.000 description 1
- 229910021472 group 8 element Inorganic materials 0.000 description 1
- 229910052735 hafnium Inorganic materials 0.000 description 1
- DMEGYFMYUHOHGS-UHFFFAOYSA-N heptamethylene Natural products C1CCCCCC1 DMEGYFMYUHOHGS-UHFFFAOYSA-N 0.000 description 1
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical class Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- LRDFRRGEGBBSRN-UHFFFAOYSA-N isobutyronitrile Chemical compound CC(C)C#N LRDFRRGEGBBSRN-UHFFFAOYSA-N 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 125000000555 isopropenyl group Chemical group [H]\C([H])=C(\*)C([H])([H])[H] 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 239000001630 malic acid Substances 0.000 description 1
- 235000011090 malic acid Nutrition 0.000 description 1
- 239000011565 manganese chloride Substances 0.000 description 1
- 235000002867 manganese chloride Nutrition 0.000 description 1
- PPNAOCWZXJOHFK-UHFFFAOYSA-N manganese(2+);oxygen(2-) Chemical compound [O-2].[Mn+2] PPNAOCWZXJOHFK-UHFFFAOYSA-N 0.000 description 1
- VASIZKWUTCETSD-UHFFFAOYSA-N manganese(II) oxide Inorganic materials [Mn]=O VASIZKWUTCETSD-UHFFFAOYSA-N 0.000 description 1
- 229940098779 methanesulfonic acid Drugs 0.000 description 1
- CAAULPUQFIIOTL-UHFFFAOYSA-N methyl dihydrogen phosphate Chemical compound COP(O)(O)=O CAAULPUQFIIOTL-UHFFFAOYSA-N 0.000 description 1
- QLPMKRZYJPNIRP-UHFFFAOYSA-M methyl(trioctyl)azanium;bromide Chemical compound [Br-].CCCCCCCC[N+](C)(CCCCCCCC)CCCCCCCC QLPMKRZYJPNIRP-UHFFFAOYSA-M 0.000 description 1
- UNASZPQZIFZUSI-UHFFFAOYSA-N methylidyneniobium Chemical compound [Nb]#C UNASZPQZIFZUSI-UHFFFAOYSA-N 0.000 description 1
- XKBGEWXEAPTVCK-UHFFFAOYSA-M methyltrioctylammonium chloride Chemical compound [Cl-].CCCCCCCC[N+](C)(CCCCCCCC)CCCCCCCC XKBGEWXEAPTVCK-UHFFFAOYSA-M 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- ZTILUDNICMILKJ-UHFFFAOYSA-N niobium(v) ethoxide Chemical compound CCO[Nb](OCC)(OCC)(OCC)OCC ZTILUDNICMILKJ-UHFFFAOYSA-N 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- FYWSTUCDSVYLPV-UHFFFAOYSA-N nitrooxythallium Chemical compound [Tl+].[O-][N+]([O-])=O FYWSTUCDSVYLPV-UHFFFAOYSA-N 0.000 description 1
- 125000006344 nonafluoro n-butyl group Chemical group FC(F)(F)C(F)(F)C(F)(F)C(F)(F)* 0.000 description 1
- 238000000655 nuclear magnetic resonance spectrum Methods 0.000 description 1
- 229940078552 o-xylene Drugs 0.000 description 1
- XCOHAFVJQZPUKF-UHFFFAOYSA-M octyltrimethylammonium bromide Chemical compound [Br-].CCCCCCCC[N+](C)(C)C XCOHAFVJQZPUKF-UHFFFAOYSA-M 0.000 description 1
- 229910052762 osmium Inorganic materials 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- JOUSPCDMLWUHSO-UHFFFAOYSA-N oxovanadium;propan-2-ol Chemical compound [V]=O.CC(C)O.CC(C)O.CC(C)O JOUSPCDMLWUHSO-UHFFFAOYSA-N 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- YHBDIEWMOMLKOO-UHFFFAOYSA-I pentachloroniobium Chemical compound Cl[Nb](Cl)(Cl)(Cl)Cl YHBDIEWMOMLKOO-UHFFFAOYSA-I 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- 150000004965 peroxy acids Chemical class 0.000 description 1
- JRKICGRDRMAZLK-UHFFFAOYSA-L persulfate group Chemical group S(=O)(=O)([O-])OOS(=O)(=O)[O-] JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 125000000951 phenoxy group Chemical group [H]C1=C([H])C([H])=C(O*)C([H])=C1[H] 0.000 description 1
- 150000004714 phosphonium salts Chemical group 0.000 description 1
- 150000003016 phosphoric acids Chemical class 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 125000003367 polycyclic group Chemical group 0.000 description 1
- 238000007867 post-reaction treatment Methods 0.000 description 1
- SATVIFGJTRRDQU-UHFFFAOYSA-N potassium hypochlorite Chemical compound [K+].Cl[O-] SATVIFGJTRRDQU-UHFFFAOYSA-N 0.000 description 1
- 239000012286 potassium permanganate Substances 0.000 description 1
- OKBMCNHOEMXPTM-UHFFFAOYSA-M potassium peroxymonosulfate Chemical compound [K+].OOS([O-])(=O)=O OKBMCNHOEMXPTM-UHFFFAOYSA-M 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- FVSKHRXBFJPNKK-UHFFFAOYSA-N propionitrile Chemical compound CCC#N FVSKHRXBFJPNKK-UHFFFAOYSA-N 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910052702 rhenium Inorganic materials 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 229910052706 scandium Inorganic materials 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- RWVGQQGBQSJDQV-UHFFFAOYSA-M sodium;3-[[4-[(e)-[4-(4-ethoxyanilino)phenyl]-[4-[ethyl-[(3-sulfonatophenyl)methyl]azaniumylidene]-2-methylcyclohexa-2,5-dien-1-ylidene]methyl]-n-ethyl-3-methylanilino]methyl]benzenesulfonate Chemical compound [Na+].C1=CC(OCC)=CC=C1NC1=CC=C(C(=C2C(=CC(C=C2)=[N+](CC)CC=2C=C(C=CC=2)S([O-])(=O)=O)C)C=2C(=CC(=CC=2)N(CC)CC=2C=C(C=CC=2)S([O-])(=O)=O)C)C=C1 RWVGQQGBQSJDQV-UHFFFAOYSA-M 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- IAHFWCOBPZCAEA-UHFFFAOYSA-N succinonitrile Chemical compound N#CCCC#N IAHFWCOBPZCAEA-UHFFFAOYSA-N 0.000 description 1
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 description 1
- 150000003460 sulfonic acids Chemical class 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- HSXKFDGTKKAEHL-UHFFFAOYSA-N tantalum(v) ethoxide Chemical compound [Ta+5].CC[O-].CC[O-].CC[O-].CC[O-].CC[O-] HSXKFDGTKKAEHL-UHFFFAOYSA-N 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- 229910052713 technetium Inorganic materials 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- YXPHMGGSLJFAPL-UHFFFAOYSA-J tetrabromotungsten Chemical compound Br[W](Br)(Br)Br YXPHMGGSLJFAPL-UHFFFAOYSA-J 0.000 description 1
- DPKBAXPHAYBPRL-UHFFFAOYSA-M tetrabutylazanium;iodide Chemical compound [I-].CCCC[N+](CCCC)(CCCC)CCCC DPKBAXPHAYBPRL-UHFFFAOYSA-M 0.000 description 1
- RKHXQBLJXBGEKF-UHFFFAOYSA-M tetrabutylphosphanium;bromide Chemical compound [Br-].CCCC[P+](CCCC)(CCCC)CCCC RKHXQBLJXBGEKF-UHFFFAOYSA-M 0.000 description 1
- QVBRLOSUBRKEJW-UHFFFAOYSA-M tetraoctylphosphanium;bromide Chemical compound [Br-].CCCCCCCC[P+](CCCCCCCC)(CCCCCCCC)CCCCCCCC QVBRLOSUBRKEJW-UHFFFAOYSA-M 0.000 description 1
- BRKFQVAOMSWFDU-UHFFFAOYSA-M tetraphenylphosphanium;bromide Chemical compound [Br-].C1=CC=CC=C1[P+](C=1C=CC=CC=1)(C=1C=CC=CC=1)C1=CC=CC=C1 BRKFQVAOMSWFDU-UHFFFAOYSA-M 0.000 description 1
- 229910052716 thallium Inorganic materials 0.000 description 1
- BKVIYDNLLOSFOA-UHFFFAOYSA-N thallium Chemical compound [Tl] BKVIYDNLLOSFOA-UHFFFAOYSA-N 0.000 description 1
- SBXQEUFUZGOWJE-UHFFFAOYSA-M thallium(1+);2,2,2-trifluoroacetate Chemical compound [Tl+].[O-]C(=O)C(F)(F)F SBXQEUFUZGOWJE-UHFFFAOYSA-M 0.000 description 1
- HQOJMTATBXYHNR-UHFFFAOYSA-M thallium(I) acetate Chemical compound [Tl+].CC([O-])=O HQOJMTATBXYHNR-UHFFFAOYSA-M 0.000 description 1
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 1
- VXUYXOFXAQZZMF-UHFFFAOYSA-N titanium(IV) isopropoxide Chemical compound CC(C)O[Ti](OC(C)C)(OC(C)C)OC(C)C VXUYXOFXAQZZMF-UHFFFAOYSA-N 0.000 description 1
- YONPGGFAJWQGJC-UHFFFAOYSA-K titanium(iii) chloride Chemical compound Cl[Ti](Cl)Cl YONPGGFAJWQGJC-UHFFFAOYSA-K 0.000 description 1
- YPFBRNLUIFQCQL-UHFFFAOYSA-K tribromomolybdenum Chemical compound Br[Mo](Br)Br YPFBRNLUIFQCQL-UHFFFAOYSA-K 0.000 description 1
- ITMCEJHCFYSIIV-UHFFFAOYSA-N triflic acid Chemical compound OS(=O)(=O)C(F)(F)F ITMCEJHCFYSIIV-UHFFFAOYSA-N 0.000 description 1
- AQZSPJRLCJSOED-UHFFFAOYSA-M trimethyl(octyl)azanium;chloride Chemical compound [Cl-].CCCCCCCC[N+](C)(C)C AQZSPJRLCJSOED-UHFFFAOYSA-M 0.000 description 1
- KPGXUAIFQMJJFB-UHFFFAOYSA-H tungsten hexachloride Chemical compound Cl[W](Cl)(Cl)(Cl)(Cl)Cl KPGXUAIFQMJJFB-UHFFFAOYSA-H 0.000 description 1
- UXVOMHPBSSIGNQ-UHFFFAOYSA-I tungsten(v) bromide Chemical compound Br[W](Br)(Br)(Br)Br UXVOMHPBSSIGNQ-UHFFFAOYSA-I 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- DUNKXUFBGCUVQW-UHFFFAOYSA-J zirconium tetrachloride Chemical compound Cl[Zr](Cl)(Cl)Cl DUNKXUFBGCUVQW-UHFFFAOYSA-J 0.000 description 1
- IPCAPQRVQMIMAN-UHFFFAOYSA-L zirconyl chloride Chemical compound Cl[Zr](Cl)=O IPCAPQRVQMIMAN-UHFFFAOYSA-L 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B61/00—Other general methods
-
- 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 sulfone derivative useful as a herbicide, that is, a compound of the following formula (2).
- the sulfone derivative of formula (2) above is known to have herbicidal activity, as disclosed in WO2002/062770A1 (Patent Document 1). Among them, pyroxasulfone is well known as an excellent herbicide.
- Reference Example 3 contains 3-(5-difluoromethoxy-1-methyl-3-trifluoromethyl-1H-pyrazol-4-ylmethylthio)-5, 5-dimethyl-2-isoxazoline (1-a) (ISFP) is oxidized with m-chloroperbenzoic acid (mCPBA) to give 3-(5-difluoromethoxy-1-methyl-3-trifluoromethyl-1H -pyrazol-4-ylmethanesulfonyl)-5,5-dimethyl-2-isoxazoline (2-a) (Pyroxasulfone).
- mCPBA m-chloroperbenzoic acid
- m-chloroperbenzoic acid (mCPBA) described in WO2004/013106A1 Patent Document 2
- mCPBA m-chloroperbenzoic acid
- Patent Document 2 the production method described in WO2004/013106A1 (Patent Document 2) is not practical for production on an industrial scale.
- Patent Document 3 JP2013-512201A
- Example 9C describes a method for producing pyroxasulfone using acetic acid.
- the method described in PCT National Publication No. 2013-512201 and Example 9C has the drawback that a large amount of the intermediate of formula (3) (sulfoxide derivative: SO derivative) remains. See Reference Example 1 in the specification of the present application.
- Patent Document 3 Japanese Patent Application Publication No. 2013-512201
- Patent Document 4 Japanese Patent Document 4
- Example 5 describes a method for producing Pyroxasulfone using acetic acid.
- the method described in CN111574511A, Example 5 is not reproducible and has the disadvantage that a large amount of the intermediate of formula (3) (sulfoxide derivative: SO derivative) remains. See Reference Example 2 in the specification of the present application.
- WO2021/002484A2 (Patent Document 6) describes a method for producing pyroxasulfone. This method is an excellent method that solves the above problem. However, the method described in WO2021/002484A2 still has room for improvement, such as being generally carried out at relatively high temperatures.
- the object of the present invention is a process for the preparation of the compound of formula (2) from the compound of formula (1), wherein the proportion of the compound of formula (3) in the product is sufficiently low, the yield is excellent, and the industrial Another object of the present invention is to provide a manufacturing method which is economically preferable.
- the present inventors have made intensive research on methods for producing the compound of formula (2). As a result, it was unexpectedly found that the above problems can be solved by providing the following method for producing the compound of formula (2). Based on this knowledge, the present inventors have completed the present invention. That is, in one aspect, the present invention is as follows.
- [A-1] A method for producing the compound of formula (2), comprising reacting the compound of formula (1) with an oxidizing agent in the presence of a metal catalyst and in the presence of a carboxylic acid;
- R 1 , R 2 and R 3 are each independently (C1-C6) alkyl optionally substituted by one or more substituents; optionally substituted by one or more substituents (C3-C6) cycloalkyl; (C2-C6) alkenyl optionally substituted by one or more substituents; (C2-C6) alkynyl optionally substituted by one or more substituents; or one or more optionally substituted (C6-C10) aryl
- R 4 and R 5 are each independently (C1-C6)alkyl optionally substituted by one or more substituents; (C3-C6)cycloalkyl optionally substituted by one or more substituents (C2-C6) alkenyl optionally substituted by one or more substituents; (C2-C6) alkynyl optionally substituted by one or more substituents; optionally substituted by one or more substituents (C1-C6)alkoxy; or (C6-C10)aryl optionally substituted by one or more substituent
- [A-16] The method according to any one of [A-1] to [A-15], wherein the amount of carboxylic acid is 0.05 per 1 mol of the compound of formula (1) mol or more (preferably 0.1 mol or more).
- [A-17] The method according to any one of [A-1] to [A-15], wherein the amount of carboxylic acid is 0.5 per 1 mol of the compound of formula (1) mol or more (1 mol or more, 2 mol or more, or 3 mol or more).
- [A-20] The method according to any one of [A-1] to [A-15], wherein the amount of carboxylic acid is 10 mol or more per 1 mol of the compound of formula (1). (or 12 moles or more).
- [A-21] The method according to any one of [A-1] to [A-15], wherein the amount of carboxylic acid is 15 mol or more per 1 mol of the compound of formula (1). How to be.
- [A-22] The method according to any one of [A-1] to [A-15], wherein the amount of carboxylic acid is 18 mol or more per 1 mol of the compound of formula (1). (or 20 moles or more).
- [A-23] The method according to any one of [A-1] to [A-15], wherein the amount of carboxylic acid is 26 mol or more per 1 mol of the compound of formula (1). (preferably 28 mol or more, more preferably 30 mol or more).
- [A-26] The method according to any one of [A-1] to [A-25], wherein the amount of carboxylic acid is 90 mol or less per 1 mol of the compound of formula (1). (preferably 70 mol or less).
- [A-28] The method according to any one of [A-1] to [A-25], wherein the amount of carboxylic acid is 10 mol or less per 1 mol of the compound of formula (1). (or 9 mol or less).
- [A-30] The method according to any one of [A-1] to [A-29], wherein the amount of carboxylic acid is 0.3 per 1 mol of the compound of formula (1). liters or more (preferably 0.5 liters or more).
- [A-31] The method according to any one of [A-1] to [A-29], wherein the amount of carboxylic acid is 0.8 per 1 mol of the compound of formula (1). liters or more (preferably 1.0 liters or more).
- [A-32] The method according to any one of [A-1] to [A-29], wherein the amount of carboxylic acid is 1.2 per mol of the compound of formula (1). liter or more (preferably 1.5 liter or more).
- [A-33] The method according to any one of [A-1] to [A-29], wherein the amount of carboxylic acid is 1.8 per mol of the compound of formula (1). liters or more (preferably 2.0 liters or more).
- [A-34] The method according to any one of [A-1] to [A-33], wherein the amount of carboxylic acid is 5 liters or less per 1 mol of the compound of formula (1). (preferably 3 liters or less).
- [A-35] The method according to any one of [A-1] to [A-33], wherein the amount of carboxylic acid is 2.0 per 1 mol of the compound of formula (1).
- a method that is liter or less (preferably 1.0 liter or less).
- [A-36] The method according to any one of [A-1] to [A-33], wherein the amount of carboxylic acid is 0.9 per 1 mol of the compound of formula (1).
- [A-37] The method according to any one of [A-1] to [A-33], wherein the amount of carboxylic acid is 0.5 per 1 mol of the compound of formula (1).
- a method that is liter or less 0.3 liter or less, or 0.2 liter or less).
- [A-50] The method according to [A-39] or [A-40], wherein the organic solvent is 1 to 3 (preferably 1 or 2) selected from (C1-C4) alkyl and chlorine atoms ) optionally substituted benzene, 1 to 10 halogen atoms (preferably chlorine atoms) optionally substituted (C1-C4) alkanes, (C1-C6) alcohols, (C2- C5)
- [A-52] The method according to [A-39] or [A-40], wherein the organic solvent is toluene, xylene, chlorobenzene, dichlorozene, dichloromethane, methanol, ethanol, propanol, 2-propanol, butanol , sec-butanol, isobutanol, tert-butanol, sec-amyl alcohol, acetonitrile, methyl acetate, ethyl acetate, propyl acetate, isopropyl acetate, butyl acetate and its isomers, N,N-dimethylformamide (DMF), N, A method selected from N-dimethylacetamide (DMAC), N,N-diethylacetamide.
- DMF N,N-dimethylformamide
- DMAC N-dimethylacetamide
- DMAC N,N-diethylacetamide
- [A-54] The method according to [A-39] or [A-40], wherein the organic solvent may be substituted with 1 to 10 halogen atoms (preferably chlorine atoms) (C1 -C4) alkane, (C1-C6) alcohol, (C2-C5) alkanenitrile, (C1-C4) alkyl (C2-C6) carboxylate, N,N-di((C1-C4) alkyl) (C1- C4) A method selected from alkanamides.
- halogen atoms preferably chlorine atoms
- [A-55] The method of [A-39] or [A-40], wherein the organic solvent is dichloromethane, 1,2-dichloroethane, methanol, ethanol, propanol, 2-propanol, butanol, sec- butanol, isobutanol, tert-butanol, pentanol, sec-amyl alcohol, 3-pentanol, 2-methyl-1-butanol, isoamyl alcohol, tert-amyl alcohol, hexanol and its isomers, cyclohexanol, acetonitrile, a method selected from methyl acetate, ethyl acetate, propyl acetate, isopropyl acetate, butyl acetate and its isomers, N,N-dimethylformamide (DMF), N,N-dimethylacetamide (DMAC), N,N-diethylacetamide .
- DMF N,N-
- [A-56] The method according to [A-39] or [A-40], wherein the organic solvent is dichloromethane, methanol, ethanol, propanol, 2-propanol, butanol, sec-butanol, isobutanol, tert -butanol, sec-amyl alcohol, acetonitrile, methyl acetate, ethyl acetate, propyl acetate, isopropyl acetate, butyl acetate and its isomers, N,N-dimethylformamide (DMF), N,N-dimethylacetamide (DMAC), N , N-diethylacetamide.
- DMF N,N-dimethylformamide
- DMAC N,N-dimethylacetamide
- [A-59] The method according to [A-39] or [A-40], wherein the organic solvent is dichloromethane, 1,2-dichloroethane, chloroform, methanol, ethanol, propanol, 2-propanol, butanol, sec-butanol, isobutanol, tert-butanol, pentanol, sec-amyl alcohol, 3-pentanol, 2-methyl-1-butanol, isoamyl alcohol, tert-amyl alcohol, hexanol and its isomers, cyclohexanol, acetonitrile A method selected from.
- the organic solvent is dichloromethane, 1,2-dichloroethane, chloroform, methanol, ethanol, propanol, 2-propanol, butanol, sec-butanol, isobutanol, tert-butanol, pentanol, sec-amyl alcohol, 3-
- [A-60] The method according to [A-39] or [A-40], wherein the organic solvent is dichloromethane, methanol, ethanol, propanol, 2-propanol, butanol, sec-butanol, isobutanol, tert - a method selected from butanol, sec-amyl alcohol, acetonitrile.
- the organic solvent is dichloromethane, methanol, ethanol, propanol, 2-propanol, butanol, sec-butanol, isobutanol, tert - a method selected from butanol, sec-amyl alcohol, acetonitrile.
- [A-62] The method according to [[A-39] or [A-40], wherein the organic solvent is dichloromethane.
- [A-63] The method according to any one of [A-39] or [A-40], wherein the organic solvent is (C1-C6) alcohol.
- [A-66] The method according to [A-39] or [A-40], wherein the organic solvent is acetonitrile.
- [A-67] The method according to any one of [A-1] to [A-66], wherein the reaction is carried out in the presence of a solvent, and the solvent contains a carboxylic acid.
- [A-68] The method according to any one of [A-1] to [A-66], wherein the reaction is carried out in the presence of a solvent and a carboxylic acid is used as the solvent.
- [A-71] The method according to any one of [A-1] to [A-70], wherein the amount of the organic solvent is 0.1 per 1 mol of the compound of formula (1) liters or more (preferably 0.2 liters or more).
- [A-80] The method according to any one of [A-1] to [A-78], wherein the reaction is carried out in the presence of a water solvent.
- [A-81] The method according to any one of [A-79] or [A-80], wherein the amount of water solvent is 0 (zero ) method that is over liters.
- [A-82] The method according to any one of [A-79] or [A-80], wherein the amount of water solvent is 0.1 per 1 mol of the compound of formula (1). How to be more than a liter.
- [A-83] The method according to any one of [A-79] or [A-80], wherein the amount of water solvent is 0.18 per 1 mol of the compound of formula (1) How to be more than a liter.
- [A-84] The method according to any one of [A-79] or [A-80], wherein the amount of water solvent is 0.5 per 1 mol of the compound of formula (1). How to be less than a liter.
- [A-85] The method according to any one of [A-79] or [A-80], wherein the amount of water solvent is 0.3 per 1 mol of the compound of formula (1). How to be less than a liter.
- [A-86] The method according to any one of [A-79] or [A-80], wherein the amount of water solvent is 0.25 per 1 mol of the compound of formula (1) How to be less than a liter.
- A is hydrogen, (C1-C6) alkyl optionally substituted by one or more substituents; (C3-C6) cycloalkyl optionally substituted by one or more substituents; one or more (C2-C6)alkenyl optionally substituted by one or more substituents; (C2-C6)alkynyl optionally substituted by one or more substituents).
- A-88 The method according to [A-87], wherein A is (C1-C4)alkyl optionally substituted with one or more substituents.
- A-89 The method according to [A-87], wherein A is (C1-C4)alkyl optionally substituted with 1 to 9 halogen atoms.
- [A-90] The method according to [A-87], wherein A is (C1-C4)alkyl optionally substituted with 1 to 9 fluorine atoms or chlorine atoms.
- [A-91] The method according to [A-87], wherein A is (C1-C4)alkyl optionally substituted with 1 to 9 fluorine atoms.
- [A-92] The method according to [A-87], wherein A is (C1-C4)alkyl optionally substituted by 1 to 9 chlorine atoms.
- [A-93] The method according to [A-87], wherein A is (C1-C4)alkyl.
- [A-96] The method according to any one of [A-1] to [A-86], wherein the carboxylic acid is selected from acetic acid, dichloroacetic acid, and trichloroacetic acid.
- [A-102] The method according to any one of [A-1] to [A-100], wherein the metal of the metal catalyst is selected from Groups 5 and 6 of the periodic table.
- [A-103] The method according to any one of [A-1] to [A-100], wherein the metal catalyst is selected from a tungsten catalyst and a molybdenum catalyst.
- [A-104] The method according to any one of [A-1] to [A-100], wherein the metal catalyst is a tungsten catalyst.
- [A-105] The method according to any one of [A-1] to [A-100], wherein the metal catalyst is a molybdenum catalyst.
- [A-106] The method according to any one of [A-1] to [A-100], wherein the metal catalyst is selected from tungstic acid, tungstate, molybdic acid and molybdate Method.
- [A-107] The method according to any one of [A-1] to [A-100], wherein the metal catalyst is tungstic acid, alkali metal tungstate, ammonium tungstate, molybdic acid, A method selected from alkali metal molybdate and ammonium molybdate.
- [A-108] The method according to any one of [A-1] to [A-100], wherein the metal catalyst is selected from sodium tungstate and ammonium molybdate.
- [A-109] The method according to any one of [A-1] to [A-100], wherein the metal catalyst is an alkali metal tungstate (preferably sodium tungstate).
- the metal catalyst is an alkali metal tungstate (preferably sodium tungstate).
- [A-111] The method according to any one of [A-1] to [A-100], wherein the metal catalyst comprises sodium tungstate dihydrate and ammonium molybdate tetrahydrate salt. method selected.
- R 1 is (C1-C4)alkyl
- R 2 is (C1-C4) perfluoroalkyl
- R 3 is (C1-C4)alkyl optionally substituted by 1 to 9 fluorine atoms
- R 4 and R 5 are each independently (C1-C4)alkyl.
- the present invention is as follows.
- a method for producing a compound of formula (2) which comprises reacting a compound of formula (1) with an oxidizing agent in the presence of a metal catalyst and in the presence of a carboxylic acid. can be, a method wherein the reaction is carried out above 35°C;
- R 1 , R 2 and R 3 are each independently (C1-C6) alkyl optionally substituted by one or more substituents; optionally substituted by one or more substituents (C3-C6) cycloalkyl; (C2-C6) alkenyl optionally substituted by one or more substituents; (C2-C6) alkynyl optionally substituted by one or more substituents; or one or more optionally substituted (C6-C10) aryl
- R 4 and R 5 are each independently (C1-C6)alkyl optionally substituted by one or more substituents; (C3-C6)cycloalkyl optionally substituted by one or more substituents (C2-C6) alkenyl optionally substituted by one or more substituents; (C2-C6) alkynyl optionally substituted by one or more substituents; optionally substituted by one or more substituents (C1-C6)alkoxy; or (C6-C10)aryl optionally substituted by one or more substituent
- a method for producing a compound of formula (2) which comprises reacting a compound of formula (1) with an oxidizing agent in the presence of a metal catalyst and in the presence of a carboxylic acid.
- an oxidizing agent in the presence of a metal catalyst and in the presence of a carboxylic acid.
- the amount of carboxylic acid is 18 mol or more per 1 mol of the compound of formula (1);
- R 1 , R 2 and R 3 are each independently (C1-C6) alkyl optionally substituted by one or more substituents; optionally substituted by one or more substituents (C3-C6) cycloalkyl; (C2-C6) alkenyl optionally substituted by one or more substituents; (C2-C6) alkynyl optionally substituted by one or more substituents; or one or more optionally substituted (C6-C10) aryl
- R 4 and R 5 are each independently (C1-C6)alkyl optionally substituted by one or more substituents; (C3-C6)cycloalkyl optionally substituted by one or more substituents (C2-C6) alkenyl optionally substituted by one or more substituents; (C2-C6) alkynyl optionally substituted by one or more substituents; optionally substituted by one or more substituents (C1-C6)alkoxy; or (C6-C10)aryl optionally substituted by one or more substituent
- a method for producing a compound of formula (2) comprising reacting a compound of formula (1) with an oxidizing agent in the presence of a metal catalyst and in the presence of a carboxylic acid.
- an oxidizing agent in the presence of a metal catalyst and in the presence of a carboxylic acid.
- the reaction is carried out in the presence of an organic solvent excluding the carboxylic acid;
- R 1 , R 2 and R 3 are each independently (C1-C6) alkyl optionally substituted by one or more substituents; optionally substituted by one or more substituents (C3-C6) cycloalkyl; (C2-C6) alkenyl optionally substituted by one or more substituents; (C2-C6) alkynyl optionally substituted by one or more substituents; or one or more optionally substituted (C6-C10) aryl
- R 4 and R 5 are each independently (C1-C6)alkyl optionally substituted by one or more substituents; (C3-C6)cycloalkyl optionally substituted by one or more substituents (C2-C6) alkenyl optionally substituted by one or more substituents; (C2-C6) alkynyl optionally substituted by one or more substituents; optionally substituted by one or more substituents (C1-C6)alkoxy; or (C6-C10)aryl optionally substituted by one or more substituent
- A is hydrogen, (C1-C6) alkyl optionally substituted by one or more substituents; (C3-C6) cycloalkyl optionally substituted by one or more substituents; one or more (C2-C6)alkenyl optionally substituted by one or more substituents; (C2-C6)alkynyl optionally substituted by one or more substituents).
- [B-18] The method according to any one of [B-1] to [B-17], wherein the metal catalyst is selected from a tungsten catalyst and a molybdenum catalyst.
- R 1 is (C1-C4)alkyl
- R 2 is (C1-C4) perfluoroalkyl
- R 3 is (C1-C4)alkyl optionally substituted by 1 to 9 fluorine atoms
- R 4 and R 5 are each independently (C1-C4)alkyl.
- the present invention is as follows.
- [C-1] A method for producing the compound of formula (2), wherein the compound of formula (1) is reacted with an oxidizing agent in the presence of a metal catalyst and in the presence of a carboxylic acid to give the compound of formula (2 ) method of manufacturing the compound;
- R 1 , R 2 and R 3 are each independently (C1-C6) alkyl optionally substituted by one or more substituents; optionally substituted by one or more substituents (C3-C6) cycloalkyl; (C2-C6) alkenyl optionally substituted by one or more substituents; (C2-C6) alkynyl optionally substituted by one or more substituents; or one or more optionally substituted (C6-C10) aryl
- R 4 and R 5 are each independently (C1-C6)alkyl optionally substituted by one or more substituents; (C3-C6)cycloalkyl optionally substituted by one or more substituents (C2-C6) alkenyl optionally substituted by one or more substituents; (C2-C6) alkynyl optionally substituted by one or more substituents; optionally substituted by one or more substituents (C1-C6)alkoxy; or (C6-C10)aryl optionally substituted by one or more substituent
- A is hydrogen, (C1-C6) alkyl optionally substituted; (C3-C6) cycloalkyl optionally substituted by one or more substituents; (C2-C6) alkenyl optionally substituted with one or more substituents; (C2-C6) alkynyl optionally substituted with one or more substituents).
- R 1 is (C1-C4)alkyl
- R 2 is (C1-C4) perfluoroalkyl
- R 3 is (C1-C4)alkyl optionally substituted by 1 to 9 fluorine atoms
- R 4 and R 5 are each independently (C1-C4)alkyl.
- the present invention is a process for producing a compound of formula ( 2 ) (sulfone derivative: SO2 derivative) from a compound of formula (1) (sulfide derivative: S derivative), wherein the compound of formula (3) in the product
- the ratio of (sulfoxide derivative: SO derivative) is sufficiently low, and an industrially preferable production method is provided.
- the compound of formula (2) produced by the method of the present invention does not substantially contain the compound of formula (3), which may cause deterioration in quality as a herbicide and phytotoxicity to crops, Useful as herbicide.
- Me methyl Et: ethyl Pr, n-Pr and Pr-n: propyl (i.e. normal propyl) i-Pr and Pr-i: isopropyl Bu, n-Bu and Bu-n: butyl (ie normal butyl) s-Bu and Bu-s: sec-butyl (ie secondary butyl) i-Bu and Bu-i: isobutyl t-Bu and Bu-t: tert-butyl (ie tertiary butyl) Ph: phenyl n-: normal s- and sec-: secondary i- and iso-: iso-t- and tert-: tertiary c- and cyc-: cyclo o-: ortho m-: meta p-: para
- nitro means the substituent "--NO 2 ".
- cyano or “nitrile” refers to the substituent "-CN”.
- hydroxy means the substituent "-OH”.
- amino means the substituent " -NH2 ".
- (Ca-Cb) means that the number of carbon atoms is a to b.
- “(C1-C4)" in “(C1-C4)alkyl” means that the alkyl has 1 to 4 carbon atoms.
- alkyl shall be taken to include both straight and branched chains such as butyl and tert-butyl.
- butyl refers to straight-chain “normal-butyl” and not to branched-chain “tert-butyl”. and branched chain isomers such as “tert-butyl” are specifically mentioned where intended.
- halogen atoms include fluorine atoms, chlorine atoms, bromine atoms and iodine atoms.
- (C1-C6) alkyl means a linear or branched alkyl having 1 to 6 carbon atoms.
- Examples of (C1-C6)alkyl include, but are not limited to, methyl, ethyl, propyl, isopropyl, butyl, sec-butyl, isobutyl, tert-butyl, pentyl, hexyl and the like.
- (C1-C4) alkyl means a linear or branched alkyl having 1 to 4 carbon atoms.
- Examples of (C1-C4)alkyl include the appropriate examples of (C1-C6)alkyl above.
- (C3-C6) cycloalkyl means cycloalkyl having 3 to 6 carbon atoms.
- Examples of (C3-C6)cycloalkyl are cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl.
- (C2-C6) alkenyl means a straight or branched chain alkenyl having 2 to 6 carbon atoms.
- Examples of (C2-C6)alkenyl are vinyl, 1-propenyl, isopropenyl, 2-propenyl, 1-butenyl, 1-methyl-1-propenyl, 2-methyl-1-propenyl, 2-butenyl, 3-butenyl , 1,3-butadienyl, 1-pentenyl, 1-hexenyl, and the like.
- (C2-C6) alkynyl means a straight or branched chain alkynyl having 2 to 6 carbon atoms.
- Examples of (C2-C6) alkynyl include ethynyl, 1-propynyl, 2-propynyl, 1-butynyl, 1-methyl-2-propynyl, 2-butynyl, 3-butynyl, 1-pentynyl, 1-hexynyl, etc. but not limited to these.
- Examples of (C6-C10)aryl are phenyl, 1-naphthyl and 2-naphthyl.
- (C1-C6)Haloalkyl means straight or branched alkyl of 1 to 6 carbon atoms substituted by 1 to 13 halogen atoms which are the same or different, wherein the halogen atoms are has the same meaning as the definition of ).
- Examples of (C1-C6)haloalkyl are fluoromethyl, chloromethyl, bromomethyl, difluoromethyl, dichloromethyl, trifluoromethyl, trichloromethyl, chlorodifluoromethyl, bromodifluoromethyl, 2-fluoroethyl, 1-chloroethyl, 2- chloroethyl, 2,2,2-trifluoroethyl, pentafluoroethyl, 3-fluoropropyl, 3-chloropropyl, 2-chloro-1-methylethyl, 2,2,3,3,3-pentafluoropropyl, 2 , 2,2-trifluoro-1-trifluoromethylethyl, heptafluoropropyl, 1,2,2,2-tetrafluoro-1-trifluoromethylethyl, 4-fluorobutyl, 4-chlorobutyl, 2,2, 3,3,4,4,4-heptafluorobutyl, nonafluor
- (C1-C4)perfluoroalkyl means a straight or branched chain alkyl having 1 to 4 carbon atoms in which all hydrogen atoms are replaced by fluorine atoms.
- Examples of (C1-C4)perfluoroalkyl are trifluoromethyl (ie —CF 3 ), pentafluoroethyl (ie —CF 2 CF 3 ), heptafluoropropyl (ie —CF 2 CF 2 CF 3 ).
- 1,2,2,2-tetrafluoro-1-trifluoromethylethyl ie —CF(CF 3 ) 2
- nonafluorobutyl ie —CF 2 CF 2 CF 2 CF 3
- 1, 2,2,3,3,3-hexafluoro-1-trifluoromethylpropyl i.e. —CF(CF 3 )CF 2 CF 3
- 1,1,2,3,3,3-hexafluoro-2 -trifluoromethylpropyl ie -CF 2 CF(CF 3 ) 2
- 2,2,2-trifluoro-1,1-di(trifluoromethyl)ethyl ie -C(CF 3 ) 3
- Examples of (C1-C4)alkyl optionally substituted by 1 to 9 fluorine atoms are fluoromethyl (ie —CH 2 F), difluoromethyl (ie —CHF 2 ), trifluoromethyl (ie —CHF 2 ), trifluoromethyl (ie , —CF 3 ), 2-fluoroethyl, 2,2,2-trifluoroethyl, pentafluoroethyl, 3-fluoropropyl, 2,2,3,3,3-pentafluoropropyl, 2,2,2- trifluoro-1-trifluoromethylethyl, heptafluoropropyl, 1,2,2,2-tetrafluoro-1-trifluoromethylethyl, 4-fluorobutyl, 2,2,3,3,4,4,4 -heptafluorobutyl, nonafluorobutyl, 1,1,2,3,3,3-hexafluoro-2-trifluoromethylpropyl, 2,
- (C1-C6) alkoxy means (C1-C6) alkyl-O- (wherein (C1-C6) alkyl moiety has the same meaning as defined above).
- Examples of (C1-C6)alkoxy include methoxy, ethoxy, propoxy, isopropoxy, butoxy, sec-butoxy, isobutoxy, tert-butoxy, pentyloxy, isopentyloxy, neopentyloxy, hexyloxy and the like, but these is not limited to
- a cyclic hydrocarbon group means a monocyclic or polycyclic cyclic group in which all the atoms constituting the ring are carbon atoms.
- examples of cyclic hydrocarbon groups are aromatic or non-aromatic, monocyclic, bicyclic or tricyclic 3- to 14-membered (preferably 5- to 14-membered, more preferably 5- to 10-membered) cyclic hydrocarbon groups.
- examples of cyclic hydrocarbon groups are aromatic or non-aromatic, monocyclic or bicyclic (preferably monocyclic) 4-8 membered (preferably 5-6 membered) including, but not limited to, cyclic hydrocarbon groups of
- Examples of cyclic hydrocarbon groups include, but are not limited to, cycloalkyls, aryls, and the like.
- Examples of cycloalkyl include the examples of (C3-C6)cycloalkyl above.
- Aryl is an aromatic cyclic radical among the cyclic hydrocarbon radicals as defined above.
- Examples of aryl include the (C6-C10)aryl examples given above.
- Cyclic hydrocarbon groups as defined or exemplified above may include non-fused cyclic (e.g.
- Cyclic hydrocarbon groups as defined or exemplified above may, where possible, be unsaturated, partially saturated or saturated.
- a cyclic hydrocarbon group as defined or exemplified above is also referred to as a carbocyclic group.
- a carbocycle is a ring corresponding to a cyclic hydrocarbon group as defined or exemplified above. Examples of carbocycles include, but are not limited to, cyclopropane, cyclobutane, cyclopentane, cyclohexane, cyclopentene, cyclohexene, and the like. Examples of 3- to 12-membered carbocycles are described above.
- substituted examples of the "substituent” with respect to the term “optionally substituted” include one or more substituents (preferably 1 to 4 substituents), including but not limited to:
- cyano group hydroxy group; amino group; (C1-C6) alkyl; (C1-C6) haloalkyl; (C3-C6) cycloalkyl; (C2-C6) alkenyl; (C2-C6) alkynyl; (C1-C6) alkoxy; phenyl; phenoxy, preferably halogen atom; nitro group; cyano group; hydroxy group; group, more preferably a group consisting of a halogen atom; a hydroxy group; and (C1-C4) alkyl.
- a group consisting of a halogen atom; (C1-C4)alkyl is more preferred.
- a compound having isomers includes all isomers and any mixture thereof in any proportion.
- xylene includes o-xylene, m-xylene, p-xylene and any mixture thereof in any proportion.
- dichlorobenzene includes o-dichlorobenzene, m-dichlorobenzene, p-dichlorobenzene and any mixture thereof in any proportion.
- a compound of formula (1) is used as a raw material.
- the compound of formula (1) is a known compound, or can be produced from a known compound according to a known method. Particularly preferred specific examples of compounds of formula (1) are as follows:
- the intermediate of the oxidation reaction is the compound of formula (3) corresponding to the compound of formula (1) used as the raw material.
- Specific examples of compounds of formula (3) are as follows:
- the oxidation reaction proceeds sufficiently, and the compound of formula (3) in the product (SO derivative) is desired to be sufficiently low.
- the ratio of the compound of formula (3) (SO derivative) in the reaction mixture after the reaction is preferably 10% or less, more preferably 5% or less, even more preferably 4% or less, and 3% or less. It is more preferably 2% or less, even more preferably 1% or less.
- formula (1) is oxidized to obtain formula (3), it may be oxidized up to formula (2).
- oxidizing agent hydrogen peroxide
- oxidizing agents include, but are not limited to, peroxides, hypochlorites (eg, sodium hypochlorite, potassium hypochlorite), manganates, manganese dioxide, and the like.
- peroxides include hydrogen peroxide, peracids and salts thereof (e.g., peracetic acid), persulfates and salts thereof (e.g., potassium peroxymonosulfate (Oxone (registered trademark)), sodium peroxodisulfate), etc. including but not limited to.
- examples of preferable oxidizing agents include hydrogen peroxide.
- the form of hydrogen peroxide may be any form as long as the reaction proceeds.
- the form of hydrogen peroxide can be appropriately selected by those skilled in the art. However, considering safety, danger, economic efficiency, etc., preferred examples of the form of hydrogen peroxide are 10 to 70 wt % hydrogen peroxide aqueous solution, more preferably 20 to 65 wt % hydrogen peroxide aqueous solution, still more preferably 25 to 65 wt % hydrogen peroxide aqueous solution, more preferably 30 to 65 wt % hydrogen peroxide aqueous solution, particularly preferably 30 to 60 wt % hydrogen peroxide aqueous solution.
- forms of hydrogen peroxide include, but are not limited to, 30 wt% aqueous hydrogen peroxide, 35 wt% aqueous hydrogen peroxide, 50 wt% aqueous hydrogen peroxide, 60 wt% aqueous hydrogen peroxide, and the like.
- Ranges of hydrogen peroxide concentrations also include, for example, ranges with any combination of the lower and upper limits of those ranges set forth herein.
- any amount of oxidizing agent (preferably hydrogen peroxide) may be used as long as the reaction proceeds.
- the amount used can be appropriately adjusted by those skilled in the art. However, from the viewpoint of yield, suppression of by-products, economic efficiency, safety, danger, etc., the amount used is, for example, 2 mol or more per 1 mol of the compound (raw material) of formula (1), preferably is 2 to 8 mol, more preferably 2 to 6 mol, still more preferably 2 to 5 mol, still more preferably 2 to 4 mol.
- metal catalyst may be any metal catalyst as long as the reaction proceeds.
- metal catalysts include, but are not limited to: tungsten catalysts (e.g. tungstic acid, tungstates (e.g. sodium tungstate (including sodium tungstate dihydrate and sodium tungstate decahydrate), potassium tungstate, calcium tungstate, ammonium tungstate); Tungsten metal, tungsten oxide (e.g., tungsten (VI) oxide, tungsten (VI) oxide is also called tungsten trioxide), tungsten carbide, tungsten chloride (e.g., tungsten chloride (VI), tungsten chloride (VI) is tungsten hexachloride ), tungsten bromide (e.g., tungsten (V) bromide), tungsten sulfide (e.g., tungsten (IV) sulfide, tungsten (IV) sulfide is also referred to as tungsten disulfide), phosphon catalyst, tungs
- molybdic acid molybdates, (e.g. sodium molybdate (including sodium molybdate dihydrate), potassium molybdate, ammonium molybdate (including ammonium molybdate tetrahydrate), metals Molybdenum, molybdenum oxide (for example, molybdenum (VI) oxide, molybdenum (VI) oxide is also called molybdenum trioxide), molybdenum chloride (molybdenum (V) chloride, molybdenum (V) chloride is also called molybdenum pentachloride), molybdenum sulfide (e.g., molybdenum (IV) sulfide, molybdenum (IV) sulfide is also referred to as molybdenum disulfide), phosphomolybdic acid and its salts (e.g., phosphomolybdic acid, sodium phosphomolybdate, ammonium phosphomolybdate, etc
- acids and salts thereof that can be in the form of hydrates may be in the form of hydrates, and both forms are within the scope of the present invention.
- “sodium tungstate” includes “sodium tungstate dihydrate” and “sodium tungstate decahydrate.”
- acids and salts thereof that can be in the form of polyacids eg, tungstic acid and salts thereof
- any form is within the scope of the present invention.
- the metal of the metal catalyst is preferably a transition metal.
- Group 3 elements Sc, Y, etc.
- Group 4 elements Ti, Zr, Hf
- Group 5 elements V, Nb, Ta
- Group 6 elements Cr, Mo, W
- Group 7 elements Elements Mn, Tc, Re
- Group 8 elements Fe, Ru, Os
- Group 9 elements Co, Rh, Ir
- Group 10 elements Ni, Pd, Pt
- Group 11 elements Cu, Ag, Au.
- the transition metals of the metal catalyst are preferably metals of Groups 4, 5 and 6, more preferably Groups 5 and 6, and even more preferably Group 5 of the periodic table.
- metal catalysts are tungsten catalysts and molybdenum catalysts.
- a preferred example of the metal catalyst is a tungsten catalyst.
- a preferred example of the metal catalyst is a molybdenum catalyst.
- tungsten catalysts include: tungstic acid, tungstate, metallic tungsten, tungsten oxide, tungsten carbide, tungsten chloride, tungsten sulfide, phosphotungstic acid, silicotungstic acid and salts thereof, and mixtures thereof; More preferably tungstic acid, tungstate, metallic tungsten, tungsten oxide, tungsten carbide, tungsten chloride and salts thereof, and mixtures thereof, more preferably tungstic acid, tungstate, metallic tungsten, tungsten oxide, tungsten carbide, and mixtures thereof; More preferably tungstic acid, sodium tungstate, potassium tungstate, calcium tungstate, ammonium tungstate, metallic tungsten, tungsten(VI) oxide, tungsten carbide, and mixtures thereof More preferably tungstic acid, sodium tungstate, metallic tungsten , tungsten carbide, and mixtures thereof, More preferably tungstic acid, sodium tungstate, metallic tungsten , tungsten carbide, and
- molybdenum catalysts from the viewpoint of yield, by-product control, economic efficiency, etc. include: molybdic acid, molybdate, molybdenum metal, molybdenum oxide, molybdenum carbide, molybdenum chloride, molybdenum sulfide, molybdenum bromide, phosphomolybdic acid, silicomolybdic acid and salts thereof, and mixtures thereof; more preferably molybdic acid, molybdates, metallic molybdenum, molybdenum carbide, molybdenum oxide, molybdenum chloride and mixtures thereof; More preferably, molybdic acid, sodium molybdate, potassium molybdate, ammonium molybdate, molybdenum (VI) oxide, molybdenum carbide, molybdenum (V) chloride, molybdenum (IV) sulfide, phosphomolybdic acid, sodium phosphomolybdate,
- metal catalysts include: Tungstic acid, sodium tungstate, potassium tungstate, calcium tungstate, ammonium tungstate, metal tungsten, tungsten oxide, tungsten carbide, Sodium molybdate, potassium molybdate, ammonium molybdate.
- metal catalysts include: tungstic acid, sodium tungstate, Sodium molybdate, potassium molybdate, ammonium molybdate.
- metal catalysts include: Sodium tungstate, ammonium molybdate.
- preferred metal catalysts are as described in [A-101] to [A-113] in this specification.
- the metal catalyst may be used alone or in combination of two or more at any ratio.
- the form of the metal catalyst may be any form as long as the reaction proceeds.
- the form can be appropriately selected by those skilled in the art.
- Any amount of the metal catalyst may be used as long as the reaction proceeds.
- the amount used can be appropriately adjusted by those skilled in the art. However, from the viewpoint of yield, suppression of by-products, economic efficiency, etc., the amount used is, for example, 0.001 to 0.1 mol, preferably It is 0.01 to 0.1 mol, more preferably 0.01 to 0.05 mol, still more preferably 0.03 to 0.05 mol.
- examples of carboxylic acids include, but are not limited to: carboxylic acid of formula (a);
- preferred examples of A are (C1-C4) alkyl optionally substituted with one or more substituents, more preferably 1 to (C1-C4) alkyl optionally substituted by 9 halogen atoms, more preferably (C1-C4) alkyl optionally substituted by 1 to 9 substituents selected from a fluorine atom and a chlorine atom, ( In other words, (C1-C4)alkyl optionally substituted by 1 to 9 fluorine or chlorine atoms), more preferably (C1-C4)alkyl optionally substituted by chlorine atoms.
- preferred specific examples of A include methyl, ethyl, monofluoromethyl, difluoromethyl, trifluoromethyl, monochloromethyl, dichloromethyl, and trichloromethyl.
- Specific examples of more preferred A include methyl, ethyl, trifluoromethyl, trichloromethyl.
- More preferred examples of A include methyl, trifluoromethyl, trichloromethyl.
- More preferred examples of A include methyl and trifluoromethyl.
- preferred specific examples of A include methyl, ethyl, difluoromethyl, trifluoromethyl, dichloromethyl and trichloromethyl.
- A examples include methyl, difluoromethyl, trifluoromethyl, dichloromethyl, trichloromethyl. More preferred specific examples of A include methyl, dichloromethyl and trichloromethyl. In yet another aspect, A is trifluoromethyl. In yet another aspect, A is trichloromethyl. In yet another aspect, A is dichloromethyl. In yet another aspect, A is methyl.
- examples of carboxylic acids include, but are not limited to: optionally substituted saturated or unsaturated aliphatic monocarboxylic acids (e.g., formic acid, acetic acid, propionic acid, butyric acid, monofluoroacetic acid, difluoroacetic acid, trifluoroacetic acid, monochloroacetic acid, dichloroacetic acid, trichloroacetic acid, lactic acid), optionally substituted saturated or unsaturated aliphatic dicarboxylic acids (e.g., oxalic acid, malonic acid, succinic acid, glutaric acid, adipic acid, fumaric acid, maleic acid, malic acid, tartaric acid), optionally substituted saturated or unsaturated aliphatic tricarboxylic acids (e.g., citric acid).
- optionally substituted saturated or unsaturated aliphatic monocarboxylic acids e.g., formic acid, acetic acid, propionic acid, butyric
- carboxylic acids include, but are not limited to: acetic acid, trifluoroacetic acid, trichloroacetic acid, more preferably acetic acid.
- preferred specific examples of carboxylic acids include acetic acid, difluoroacetic acid, trifluoroacetic acid, dichloroacetic acid, trichloroacetic acid. More preferred specific examples of carboxylic acids include acetic acid, dichloroacetic acid and trichloroacetic acid. More preferred specific examples of carboxylic acid include acetic acid and dichloroacetic acid.
- the amount of carboxylic acid used is not particularly limited.
- the lower limit of the amount of carboxylic acid used is, for example, 0 (zero ) more than mol, preferably 0.01 mol or more, more preferably 0.05 mol or more, more preferably 0.1 mol or more, 0.3 mol or more, 0.5 mol or more, 1 mol or more, 2 mol or more, It is 3 mol or more and 5 mol or more.
- the lower limit of the amount of carboxylic acid used is, for example, preferably 8 mol or more, 10 mol or more, 12 mol or more, 15 mol or more, 18 mol or more, per 1 mol of the compound (raw material) of formula (1). mol or more, 20 mol or more.
- the lower limit of the amount of carboxylic acid used is, for example, 26 mol or more, preferably 26 mol or more, more preferably 27 mol or more, relative to 1 mol of the compound (raw material) of formula (1). mol or more, more preferably 30 mol or more, 32 mol or more, more preferably 35 mol or more.
- the upper limit of the amount of carboxylic acid used is, for example, 90 mol or less, 70 mol or less, or 55 mol or less per 1 mol of the compound (raw material) of formula (1). be. In another aspect, the upper limit of the amount of carboxylic acid used is, for example, 30 mol or less, 20 mol or less, 10 mol or less, or 9 mol or less per 1 mol of the compound (raw material) of formula (1). In still another aspect, the upper limit of the amount of carboxylic acid used is, for example, 5 mol or less and 0.3 mol or less per 1 mol of the compound (raw material) of formula (1).
- the range of the amount of carboxylic acid to be used is, for example, an appropriate and arbitrary combination of the above lower limit and upper limit.
- combinations of upper and lower limits are as follows, but are not limited to: Per 1 mol, more than 0 (zero) mol and 70 mol or less, more than 0 (zero) mol and 55 mol or less, more than 0 (zero) mol and 30 mol or less, preferably 0.01 mol or more and 70 mol or less, 0.01 0.01 to 30 mol, more preferably 0.05 to 70 mol, 0.05 to 55 mol, 0.05 to 30 mol, still more preferably 0.05 to 55 mol 1 mol or more and 70 mol or less, 0.1 mol or more and 55 mol or less, and 0.1 mol or more and 30 mol or less.
- the amount of carboxylic acid used is, for example, more than 26 mol and 70 mol or less, more than 26 mol and 55 mol or less, preferably 30 mol or more and 70 mol, per 1 mol of the compound (raw material) of formula (1). 30 mol or more and 55 mol or less, more preferably 35 mol or more and 70 mol or less, and 35 mol or more and 55 mol or less.
- the carboxylic acid in the above amounts may be used as a solvent.
- Part or all of the carboxylic acid may be a salt and/or an acid anhydride as long as the effects of the present invention are exhibited.
- Acid catalyst acids are acids other than carboxylic acids.
- acid catalysts include, but are not limited to: mineral acids such as hydrochloric acid, sulfuric acid, nitric acid; sulfonic acids such as methanesulfonic acid, trifluoromethanesulfonic acid, benzenesulfonic acid, p-toluenesulfonic acid; Acids, phosphoric acids such as methyl phosphate, ethyl phosphate and phenyl phosphate, preferably sulfuric acid, phosphoric acid and phenyl phosphate, more preferably sulfuric acid and phenyl phosphate, still more preferably sulfuric acid. Acid catalysts may be salts thereof.
- the acid catalyst may be used alone or in combination of two or more at any ratio.
- the form of the acid catalyst may be any form as long as the reaction proceeds.
- sulfuric acid include, but are not limited to, 50%-98% sulfuric acid, 50%-100% sulfuric acid, preferably 90%-98% sulfuric acid, 90%-100% sulfuric acid (concentrated sulfuric acid).
- the form of the acid catalyst can be appropriately selected by those skilled in the art. Any amount of the acid catalyst may be used as long as the reaction proceeds. The amount of acid catalyst used can be appropriately adjusted by those skilled in the art.
- the amount of the acid catalyst used is, for example, 0 (zero) per 1 mol of the compound (raw material) of formula (1). ⁇ 0.5 mol, more than 0 (zero) and 0.5 mol or less, 0.005 to 0.5 mol, 0.01 to 0.5 mol, 0.05 to 0.5 mol, preferably 0 (zero ) to 0.2 mol, more than 0 (zero) and 0.2 mol or less, 0.005 to 0.2 mol, 0.01 to 0.2 mol, 0.05 to 0.2 mol.
- phase transfer catalyst The oxidation reaction of the invention may be carried out in the presence of a phase transfer catalyst. Alternatively, it may be carried out in the absence of a phase transfer catalyst. A person skilled in the art can appropriately determine whether or not to use a phase transfer catalyst.
- phase transfer catalysts include, but are not limited to: quaternary ammonium salts such as tetrabutylammonium chloride, tetrabutylammonium bromide, tetrabutylammonium iodide, tetrabutylammonium hydrogen sulfate, benzyltrimethylammonium chloride , benzyltrimethylammonium bromide, octyltrimethylammonium chloride, octyltrimethylammonium bromide, trioctylmethylammonium chloride, trioctylmethylammonium bromide, benzyllauryldimethylammonium chloride (benzyldodecyldimethylammonium chloride), benzyllauryldimethylammonium bromide (benzyldodecyldimethyl ammonium bromide), myristyltrimethylammonium chloride (tetradecyltrimethylammoni
- phase transfer catalyst examples include tetrabutylammonium chloride, tetrabutylammonium bromide, tetrabutylammonium hydrogensulfate, more preferably tetrabutylammonium hydrogensulfate, from the viewpoint of yield, suppression of by-products, economic efficiency, and the like.
- Tetrabutylammonium hydrogen sulfate may be abbreviated as TBAHS.
- the phase transfer catalyst may be used alone or in combination of two or more at any ratio.
- the form of the phase transfer catalyst may be any form as long as the reaction proceeds.
- the form of the phase transfer catalyst can be appropriately selected by those skilled in the art. Any amount of the phase transfer catalyst may be used as long as the reaction proceeds. The amount of the phase transfer catalyst used can be appropriately adjusted by those skilled in the art.
- the amount of the phase transfer catalyst used is, for example, 0 (zero ) to 0.5 mol, more than 0 (zero) and 0.5 mol or less, 0.005 to 0.5 mol, 0.01 to 0.5 mol, 0.05 to 0.5 mol, preferably 0 (zero ) to 0.2 mol, more than 0 (zero) and 0.2 mol or less, 0.005 to 0.2 mol, 0.01 to 0.2 mol, 0.05 to 0.2 mol.
- reaction solvent From the viewpoint of smooth progress of the reaction, etc., the oxidation reaction of the present invention is preferably carried out in the presence of a solvent. Any solvent may be used as the reaction solvent as long as the reaction proceeds.
- the reaction solvent may be a carboxylic acid or an organic solvent other than the carboxylic acid. In either case, it may be in the presence of a water solvent.
- examples of reaction solvents include, but are not limited to: aromatic hydrocarbon derivatives such as (C1-C4) alkyl (preferably (C1-C3) alkyl, more preferably ( C1-C2) alkyl) and benzene optionally substituted by 1 to 3 (preferably 1 or 2) substituents selected from chlorine atoms, specifically, for example, benzene, toluene, xylene, chlorobenzene, dichlorobenzene, trichlorobenzene.
- aromatic hydrocarbon derivatives may include nitrobenzene), halogenated aliphatic hydrocarbons (for example, substituted by 1 to 10 halogen atoms (preferably chlorine atoms) (C1-C4) alkanes optionally substituted, preferably (C1-C2) alkanes optionally substituted by 1 to 6 chlorine atoms, specifically, for example, dichloromethane, 1,2-dichloroethane ( EDC), chloroform), alcohols (e.g.
- nitriles may include benzonitrile.
- carboxylic acids acetic acid, propionic acid, trifluoroacetic acid, dichloroacetic acid, trichloroacetic acid
- carboxylic acid esters e.g., (C1-C4)alkyl(C2-C6 ) carboxylates, preferably (C1-C4) alkyl (C2-C3) carboxylates, specifically for example, methyl acetate, ethyl acetate, propyl acetate, isopropyl acetate, butyl acetate and its isomers, pentyl acetate and its different isomers, etc.
- ethers e.g., tetrahydrofuran (THF), 2-methyltetrahydrofuran (2-MeTHF), 1,4-dioxane, diisopropyl ether, dibutyl ether, di-tert-butyl ether, cyclopentyl methyl ether (CPME), methyl- tert-butyl ether, 1,2-dimethoxyethane (DME), diglyme), ketones (e.g.
- amides For example N,N-di((C1-C4)alkyl)(C1-C4)alkanamides, in particular for example N,N-dimethylformamide (DMF), N,N-dimethylacetamide (DMAC).
- amides may include N-methylpyrrolidone (NMP)), ureas (eg N,N′-dimethylimidazolidinone (DMI), tetramethylurea), sulfones (eg sulfolane), water, and any combination thereof in any proportion.
- 2-propanol is also called isopropyl alcohol or isopropanol.
- Tert-butanol is also called tert-butyl alcohol.
- reaction solvent examples include alcohols, nitriles, carboxylic acids, carboxylic acid esters, amides, water, and any of them in any proportion. Including combinations.
- reaction solvents include alcohols, nitriles, carboxylic acids, amides, water, and any combination thereof in any proportion.
- reaction solvents include alcohols, nitriles, carboxylic acids, water, and any combination thereof in any proportion.
- reaction solvent examples include methanol, ethanol, propanol, 2-propanol, butanol, sec-butanol, isobutanol, tert-butanol, pentanol, sec-amyl alcohol, 3- Pentanol, 2-methyl-1-butanol, isoamyl alcohol, tert-amyl alcohol, acetonitrile, methyl acetate, ethyl acetate, propyl acetate, isopropyl acetate, butyl acetate and its isomers, pentyl acetate and its isomers, acetic acid, propion acids, trifluoroacetic acid, dichloroacetic acid, trichloroacetic acid, N,N-dimethylformamide (DMF), N,N-dimethylacetamide (DMAC), water, and any combination thereof in any proportion.
- DMF N,N-dimethylformamide
- DMAC N,N-dimethylacet
- reaction solvent More preferred specific examples of the reaction solvent are methanol, ethanol, propanol, 2-propanol, butanol, sec-butanol, isobutanol, tert-butanol, pentanol, sec-amyl alcohol, 3-pentanol, 2-methyl -1-butanol, isoamyl alcohol, tert-amyl alcohol, acetonitrile, acetic acid, dichloroacetic acid, N,N-dimethylformamide (DMF), N,N-dimethylacetamide (DMAC), water, and any of them in any proportion including combinations of
- reaction solvents include methanol, ethanol, propanol, 2-propanol, butanol, acetonitrile, acetic acid, dichloroacetic acid, N,N-dimethylformamide (DMF), water, and any proportion thereof in any proportion. including combinations of
- reaction solvents include methanol, acetonitrile, acetic acid, dichloroacetic acid, N,N-dimethylformamide (DMF), water, and any combination thereof in any proportion.
- reaction solvents include methanol, acetonitrile, acetic acid, dichloroacetic acid, water, and any combination thereof in any proportion.
- preferred reaction solvents are as described herein.
- preferred reaction solvents are as described in [A-40] to [A-70] and [A-78] in this specification. Examples and specific examples thereof are provided herein. In all methods described herein, for example, in all methods described in [A-40] to [A-70] and [A-78], it may be "in the presence of an aqueous solvent”. .
- Examples of preferred organic solvents include organic solvents defined herein by the following parameters.
- relative permittivity As used herein, reference may be made, for example, to the following documents regarding relative permittivity (generally also known as "dielectric constant”). Edited by The Chemical Society of Japan, “Kagaku Binran (Fundamentals)", Maruzen Co., Ltd., 5th Revised Edition, 2004, pp. I-770-777. A. Maryott and Edgar R. Smith, National Bureau of Standards Circular 514, Table of Dielectric Constants of Pure Liquids, United States Department of Commerce, National Bureau of Standards, August 10, 1951. These are incorporated herein by reference. Examples of solvents with the specified values are described in the above references, which are incorporated herein by reference.
- Rohrschneider's polar parameter For Rohrschneider's polarity parameters, see, for example, the following website. https://www.shodex.com/en/dc/06/0117.html which are incorporated herein by reference. Examples of solvents with the specified values are described in the above references, which are incorporated herein by reference.
- organic solvents other than carboxylic acids are as described herein.
- examples of the amounts thereof are as follows from the viewpoint of yield, suppression of by-products, economic efficiency, etc.:
- use of an organic solvent excluding carboxylic acid The lower limit of the amount is more than 0 (zero) liters, 0.1 liters or more, preferably 0.2 liters or more, more preferably 0.3 liters or more, 0.4 liters per mole of the compound of formula (1) liter or more, more preferably 0.5 liter or more, 0.8 liter or more.
- the upper limit of the amount of the organic solvent other than the carboxylic acid used is 5 liters or less, preferably 3 liters or less, more preferably 2 liters or less, and still more preferably 1 mol of the compound of formula (1). 1 liter or less.
- the range of the amount of the organic solvent other than the carboxylic acid to be used is, for example, an appropriate and arbitrary combination of the above lower limit and upper limit.
- combinations of upper and lower limits are as follows, but are not limited to: 0.3 liters or more and 3 liters or less, preferably 0.5 liters or more and 2 liters or less per 1 mol of the compound (raw material).
- the solvent may be a single layer or separated into two layers.
- a carboxylic acid and a specific organic solvent it is preferable in the present invention from the viewpoint of the solubility and the affinity between the organic solvent and the water solvent. It was also found that the conditions (reaction system) were obtained.
- reaction solvent means all "organic solvents excluding carboxylic acid", “carboxylic acid used as solvent” and “aqueous solvent” used in the reaction.
- reaction solvent does not include organic solvents and aqueous solvents used for post-reaction treatments (eg, isolation, purification, etc.).
- the "organic solvent” used in the reaction includes the organic solvent in the raw material solution and the reactant solution.
- the “aqueous solvent” used in the reaction includes water in the raw material solution and in the reactant solution (eg, water in the aqueous hydrogen peroxide solution).
- the amount of reaction solvent used is not particularly limited as long as the reaction system can be sufficiently stirred. However, from the viewpoint of yield, suppression of by-products, economic efficiency, etc., in one embodiment, the amount of the reaction solvent used is, for example, 0 (zero) per 1 mol of the compound (raw material) of formula (1).
- the ratio of the two or more solvents may be any ratio as long as the reaction proceeds.
- reaction temperature As long as the effects of the present invention are exhibited, the reaction temperature is not particularly limited. However, from the viewpoint of yield, suppression of by-products, economic efficiency, etc., in one embodiment, the lower limit of the reaction temperature is, for example, 10° C. or higher, preferably 20° C. or higher, 25° C. or higher, 35° C. or higher, 35° C. °C, 40 °C or higher, 45 °C or higher, or 50 °C or higher.
- the upper limit of the reaction temperature is, for example, 200° C. or less, 150° C. or less, 100° C. or less, preferably 80° C. or less, more preferably 75° C. or less, less than 75° C., 70° C.
- reaction temperature is, for example, 10° C. or higher and 100° C. or lower, preferably 20° C. or higher and 100° C. or lower, more preferably 35° C. or higher and 100° C.
- the reaction temperature is, for example, 10° C. or higher and 80° C. or lower, preferably 20° C. or higher and 80° C. or lower, more preferably 35° C. or higher and 80° C. or lower, still more preferably 40° C. 80° C. or higher, more preferably 45° C. or higher and 80° C. or lower, still more preferably 50° C. or higher and 80° C. or lower.
- the reaction temperature is, for example, 10° C. or higher and 60° C. or lower, preferably 20° C. or higher and 60° C. or lower, more preferably 35° C. or higher and 60° C. or lower, still more preferably 40° C. 60° C. or higher, more preferably 45° C. or higher and 60° C. or lower, further preferably 50° C. or higher and 60° C. or lower.
- the reaction temperature is preferably as low as possible in terms of safety, and as close to room temperature (ordinary temperature) as possible, it is environmentally friendly and contributes to sustainability, but is not limited to these.
- reaction time As long as the effects of the present invention are exhibited, the reaction time is not particularly limited. However, from the viewpoint of yield, suppression of by-products, economic efficiency, etc., in one embodiment, the lower limit of the reaction time is, for example, 1 hour or longer, 1 hour and 30 minutes or longer, or 2 hours or longer, but is limited to these. not. In one aspect, the upper limit of the reaction time is, for example, 48 hours or less, 36 hours or less, preferably 24 hours or less, 16 hours or less, or 12 hours or less, but is not limited thereto. In another aspect, the upper limit of the reaction time is, for example, but not limited to, 8 hours or less, 6 hours or less, 5 hours or less, or 4 hours or less.
- the range of the reaction time is, for example, an appropriate and arbitrary combination of the above lower and upper limits. is, for example, but not limited to, 1 hour to 48 hours, 1 hour to 36 hours, more preferably 1 hour to 24 hours. However, the reaction time can be appropriately adjusted by those skilled in the art according to the purpose and circumstances.
- HPLC area percentage analysis or GC area percentage analysis may be used, for example, in evaluating the reaction yield of the target product, the yield of impurities, and the purity of the product.
- room temperature and normal temperature are 10°C to 35°C.
- overnight means 8 to 16 hours.
- aging/aged/aging includes stirring the mixture by a conventional method known to those skilled in the art.
- sulfuric acid means concentrated sulfuric acid unless otherwise specified.
- concentrated sulfuric acid include, but are not limited to, 98% sulfuric acid.
- Reaction intermediate 3-[(5-difluoromethoxy-1-methyl-3-trifluoromethylpyrazol-4-yl)methylsulfinyl]-4,5-dihydro-5,5-dimethylisoxazole (compound 3 -a; SO derivative) was 2.51% (HPLC area percentage; 230 nm) at this point. The mixture was homogeneous. Acetonitrile was added to the reaction mixture. As a result of analysis by HPLC external standard method, the yield of target product (2-a) was 95.6%.
- Reaction intermediate 3-[(5-difluoromethoxy-1-methyl-3-trifluoromethylpyrazol-4-yl)methylsulfinyl]-4,5-dihydro-5,5-dimethylisoxazole (compound 3 -a; SO derivative) was 1.90% (HPLC area percentage; 230 nm) at this point. Acetonitrile was added to the reaction mixture. As a result of analysis by HPLC external standard method, the yield of target product (2-a) was 97.4%.
- Reaction intermediate, 3-[(5-difluoromethoxy-1-methyl-3-trifluoromethylpyrazol-4-yl)methylsulfinyl]-4,5-dihydro-5,5-dimethylisoxazole (compound 3 -a; SO derivative) was 2.87% (HPLC area percentage; 230 nm) at this point. Acetonitrile was added to the reaction mixture. As a result of analysis by HPLC external standard method, the yield of target product (2-a) was 96.4%.
- Reaction intermediate, 3-[(5-difluoromethoxy-1-methyl-3-trifluoromethylpyrazol-4-yl)methylsulfinyl]-4,5-dihydro-5,5-dimethylisoxazole (compound 3 -a; SO derivative) was 5.0% after 16 hours of aging (HPLC area percentage). After adding 4 g of water to the reaction mixture and aging at 10° C. for 1 hour, the precipitated crystals were separated by filtration. The obtained crystals were washed successively with 20 ml of petroleum ether and 20 ml of water.
- Reference Example 1 is a reproduction experiment of Example 9C of JP2013-512201A (Patent Document 3).
- Patent Document 3 In the production method described in JP2013-512201A (Patent Document 3), 5.0% of the reaction intermediate compound (3-a) remained even after aging for 16 hours. In addition, even after purification, the ratio of compound (3-a) did not decrease. It was again confirmed that it is difficult to purify the compound of formula (2) by separating the compound of formula (2) and the compound of formula (3).
- Reference Example 2 is a reproduction experiment of Example 5 of Chinese Patent Publication No. 111574511 (CN111574511A) (Patent Document 5).
- Patent Document 5 In the production method described in Chinese Patent Publication No. 111574511 (CN111574511A) (Patent Document 5), although a large amount of carboxylic acid (acetic acid) was used, the reaction intermediate compound (3-a) remained. rice field.
- Reaction intermediate, 3-[(5-difluoromethoxy-1-methyl-3-trifluoromethylpyrazol-4-yl)methylsulfinyl]-4,5-dihydro-5,5-dimethylisoxazole (compound 3 -a; SO derivative) was 2.15% (HPLC area percentage; 230 nm) at this point.
- Acetonitrile was added to the reaction mixture to form a homogeneous solution.
- the yield of target product (2-a) was 94.1%.
- Reaction intermediate, 3-[(5-difluoromethoxy-1-methyl-3-trifluoromethylpyrazol-4-yl)methylsulfinyl]-4,5-dihydro-5,5-dimethylisoxazole (compound 3 -a; SO derivative) was 1.98% (HPLC area percentage; 230 nm) at this point.
- Acetonitrile was added to the reaction mixture to form a homogeneous solution.
- the yield of target product (2-a) was 96.2%.
- Reaction intermediate 3-[(5-difluoromethoxy-1-methyl-3-trifluoromethylpyrazol-4-yl)methylsulfinyl]-4,5-dihydro-5,5-dimethylisoxazole (compound 3 -a; SO derivative) was 1.88% (HPLC area percentage; 230 nm) at this point. Acetonitrile was added to the reaction mixture to form a homogeneous solution. As a result of analysis by HPLC external standard method, the yield of target product (2-a) was 93.0%.
- Reaction intermediate 3-[(5-difluoromethoxy-1-methyl-3-trifluoromethylpyrazol-4-yl)methylsulfinyl]-4,5-dihydro-5,5-dimethylisoxazole (compound 3 -a; SO derivative) was 0.61% (HPLC area percentage; 230 nm) at this point. Acetonitrile was added to the reaction mixture to form a homogeneous solution. As a result of analysis by HPLC external standard method, the yield of target product (2-a) was 94.3%.
- Reaction intermediate 3-[(5-difluoromethoxy-1-methyl-3-trifluoromethylpyrazol-4-yl)methylsulfinyl]-4,5-dihydro-5,5-dimethylisoxazole (compound 3 -a; SO derivative) was 0.95% (HPLC area percentage; 230 nm) at this point. Acetonitrile was added to the reaction mixture to form a homogeneous solution. As a result of analysis by HPLC external standard method, the yield of target product (2-a) was 91.0%.
- Reaction intermediate, 3-[(5-difluoromethoxy-1-methyl-3-trifluoromethylpyrazol-4-yl)methylsulfinyl]-4,5-dihydro-5,5-dimethylisoxazole (compound 3 -a; SO derivative) was 1.71% (HPLC area percentage; 230 nm) at this point. Acetonitrile was added to the reaction mixture to form a homogeneous solution. As a result of analysis by HPLC external standard method, the yield of target product (2-a) was 95.6%.
- Reaction intermediate 3-[(5-difluoromethoxy-1-methyl-3-trifluoromethylpyrazol-4-yl)methylsulfinyl]-4,5-dihydro-5,5-dimethylisoxazole (compound 3 -a; SO derivative) was 0% (HPLC area percentage; 230 nm) at this point. Acetonitrile was added to the reaction mixture. As a result of analysis by HPLC external standard method, the yield of target product (2-a) was 97.8%.
- Reaction intermediate 3-[(5-difluoromethoxy-1-methyl-3-trifluoromethylpyrazol-4-yl)methylsulfinyl]-4,5-dihydro-5,5-dimethylisoxazole (compound 3 -a; SO derivative) was 0.45% (HPLC area percentage; 230 nm) at this point. Acetonitrile was added to the reaction mixture. As a result of analysis by HPLC external standard method, the yield of target product (2-a) was 97.5%.
- Reaction intermediate 3-[(5-difluoromethoxy-1-methyl-3-trifluoromethylpyrazol-4-yl)methylsulfinyl]-4,5-dihydro-5,5-dimethylisoxazole (compound 3 -a; SO derivative) was 0.16% (HPLC area percentage; 230 nm) at this point. Acetonitrile was added to the reaction mixture. As a result of analysis by HPLC external standard method, the yield of target product (2-a) was 98.1%.
- Reaction intermediate 3-[(5-difluoromethoxy-1-methyl-3-trifluoromethylpyrazol-4-yl)methylsulfinyl]-4,5-dihydro-5,5-dimethylisoxazole (compound 3 -a; SO derivative) was 2.87% (HPLC area percentage; 230 nm) at this point. Acetonitrile was added to the reaction mixture to form a homogeneous solution. As a result of analysis by HPLC external standard method, the yield of target product (2-a) was 93.3%.
- Reaction intermediate 3-[(5-difluoromethoxy-1-methyl-3-trifluoromethylpyrazol-4-yl)methylsulfinyl]-4,5-dihydro-5,5-dimethylisoxazole (compound 3 -a; SO derivative) was 0% (HPLC area percentage; 230 nm) at this point. Acetonitrile was added to the reaction mixture. As a result of analysis by HPLC external standard method, the yield of target product (2-a) was 91.7%.
- the mixture was an emulsion from the start of the reaction to the end of the reaction.
- Reaction intermediate, 3-[(5-difluoromethoxy-1-methyl-3-trifluoromethylpyrazol-4-yl)methylsulfinyl]-4,5-dihydro-5,5-dimethylisoxazole (compound 3 -a; SO derivative) was 0% (HPLC area percentage; 230 nm) at this point.
- Acetonitrile was added to the reaction mixture to form a homogeneous solution.
- the yield of target product (2-a) was 86.5%.
- Reaction intermediate 3-[(5-difluoromethoxy-1-methyl-3-trifluoromethylpyrazol-4-yl)methylsulfinyl]-4,5-dihydro-5,5-dimethylisoxazole (compound 3 -a; SO derivative) was 0% (HPLC area percentage; 230 nm) at this point. Acetonitrile was added to the reaction mixture. As a result of analysis by HPLC external standard method, the yield of target product (2-a) was 89.3%.
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Abstract
Description
の化合物で反応が停止してしまう可能性がある。従って、式(3)の化合物が副生成物として生成物中に残存することがある。除草剤などの製品中に混入した式(3)の化合物は、品質の低下及び作物に対する薬害の可能性につながる。しかし、式(3)の化合物の物理的性質及び化学的性質は、式(2)の化合物のそれらと極めて似ているから、式(3)の化合物を分離して式(2)の化合物を精製することが困難である。従って、式(1)の化合物から式(2)の化合物を製造する方法においては、酸化反応が十分に進行し、生成物中に式(3)の化合物が実質的に残存しない製造方法が求められている。
R4及びR5は、それぞれ独立して、1以上の置換基により置換されていてもよい(C1-C6)アルキル;1以上の置換基により置換されていてもよい(C3-C6)シクロアルキル;1以上の置換基により置換されていてもよい(C2-C6)アルケニル;1以上の置換基により置換されていてもよい(C2-C6)アルキニル;1以上の置換基により置換されていてもよい(C1-C6)アルコキシ;又は1以上の置換基により置換されていてもよい(C6-C10)アリールであり;又は
R4及びR5は、それらが結合している炭素原子と一緒になって、3~12員の炭素環を形成し、ここで形成された環は1以上の置換基により置換されていてもよい。)。
〔A-2〕 〔A-1〕に記載の方法であって、反応が35℃以上で行われる方法。
〔A-37〕 〔A-1〕から〔A-33〕のいずれか1項に記載の方法であって、カルボン酸の量が、式(1)の化合物1モルに対して、0.5リットル以下(0.3リットル以下、又は0.2リットル以下)である方法。
酢酸メチル、酢酸エチル、酢酸プロピル、酢酸イソプロピル、酢酸ブチル及びその異性体、N,N-ジメチルホルムアミド(DMF)、N,N-ジメチルアセトアミド(DMAC)、N,N-ジエチルアセトアミドから選択される方法。
〔A-63〕 〔A-39〕又は〔A-40〕のいずれか1項に記載の方法であって、有機溶媒が、(C1-C6)アルコールである方法。
〔A-67〕 〔A-1〕から〔A-66〕のいずれか1項に記載の方法であって、反応が溶媒の存在下で行われ、溶媒がカルボン酸を含む方法。
〔A-68〕 〔A-1〕から〔A-66〕のいずれか1項に記載の方法であって、反応が溶媒の存在下で行われ、溶媒としてカルボン酸を使用する方法。
〔A-70〕 〔A-1〕から〔A-66〕のいずれか1項に記載の方法であって、反応が溶媒の存在下で行われ、溶媒としてカルボン酸とカルボン酸を除く有機溶媒の混合溶媒を使用する方法。
〔A-81〕 〔A-79〕又は〔A-80〕のいずれか1項に記載の方法であって、水溶媒の量が、式(1)の化合物1モルに対して、0(ゼロ)リットル超である方法。
〔A-82〕 〔A-79〕又は〔A-80〕のいずれか1項に記載の方法であって、水溶媒の量が、式(1)の化合物1モルに対して、0.1リットル以上である方法。
〔A-83〕 〔A-79〕又は〔A-80〕のいずれか1項に記載の方法であって、水溶媒の量が、式(1)の化合物1モルに対して、0.18リットル以上である方法。
〔A-84〕 〔A-79〕又は〔A-80〕のいずれか1項に記載の方法であって、水溶媒の量が、式(1)の化合物1モルに対して、0.5リットル以下である方法。
〔A-85〕 〔A-79〕又は〔A-80〕のいずれか1項に記載の方法であって、水溶媒の量が、式(1)の化合物1モルに対して、0.3リットル以下である方法。
〔A-86〕 〔A-79〕又は〔A-80〕のいずれか1項に記載の方法であって、水溶媒の量が、式(1)の化合物1モルに対して、0.25リットル以下である方法。
〔A-88〕 〔A-87〕に記載の方法であって、Aが1以上の置換基により置換されていてもよい(C1-C4)アルキルである方法。
〔A-89〕 〔A-87〕に記載の方法であって、Aが1~9のハロゲン原子により置換されていてもよい(C1-C4)アルキルである方法。
〔A-90〕 〔A-87〕に記載の方法であって、Aが1~9のフッ素原子又は塩素原子により置換されていてもよい(C1-C4)アルキルである方法。
〔A-91〕 〔A-87〕に記載の方法であって、Aが1~9のフッ素原子より置換されていてもよい(C1-C4)アルキルである方法。
〔A-92〕 〔A-87〕に記載の方法であって、Aが1~9の塩素原子により置換されていてもよい(C1-C4)アルキルである方法。
〔A-93〕 〔A-87〕に記載の方法であって、Aが(C1-C4)アルキルである方法。
R1が(C1-C4)アルキルであり、
R2が(C1-C4)パーフルオロアルキルであり、
R3が1~9個のフッ素原子により置換されていてもよい(C1-C4)アルキルであり、
R4及びR5が、それぞれ独立して、(C1-C4)アルキルである、方法。
R1がメチルであり、
R2がトリフルオロメチルであり、
R3がジフルオロメチルであり、
R4及びR5がメチルである、方法。
ここで反応が35℃超で行われる方法;
R4及びR5は、それぞれ独立して、1以上の置換基により置換されていてもよい(C1-C6)アルキル;1以上の置換基により置換されていてもよい(C3-C6)シクロアルキル;1以上の置換基により置換されていてもよい(C2-C6)アルケニル;1以上の置換基により置換されていてもよい(C2-C6)アルキニル;1以上の置換基により置換されていてもよい(C1-C6)アルコキシ;又は1以上の置換基により置換されていてもよい(C6-C10)アリールであり;又は
R4及びR5は、それらが結合している炭素原子と一緒になって、3~12員の炭素環を形成し、ここで形成された環は1以上の置換基により置換されていてもよい。)。
カルボン酸の量が、式(1)の化合物1モルに対して、18モル以上である方法;
R4及びR5は、それぞれ独立して、1以上の置換基により置換されていてもよい(C1-C6)アルキル;1以上の置換基により置換されていてもよい(C3-C6)シクロアルキル;1以上の置換基により置換されていてもよい(C2-C6)アルケニル;1以上の置換基により置換されていてもよい(C2-C6)アルキニル;1以上の置換基により置換されていてもよい(C1-C6)アルコキシ;又は1以上の置換基により置換されていてもよい(C6-C10)アリールであり;又は
R4及びR5は、それらが結合している炭素原子と一緒になって、3~12員の炭素環を形成し、ここで形成された環は1以上の置換基により置換されていてもよい。)。
ここで反応がカルボン酸を除く有機溶媒の存在下で行われる方法;
R4及びR5は、それぞれ独立して、1以上の置換基により置換されていてもよい(C1-C6)アルキル;1以上の置換基により置換されていてもよい(C3-C6)シクロアルキル;1以上の置換基により置換されていてもよい(C2-C6)アルケニル;1以上の置換基により置換されていてもよい(C2-C6)アルキニル;1以上の置換基により置換されていてもよい(C1-C6)アルコキシ;又は1以上の置換基により置換されていてもよい(C6-C10)アリールであり;又は
R4及びR5は、それらが結合している炭素原子と一緒になって、3~12員の炭素環を形成し、ここで形成された環は1以上の置換基により置換されていてもよい。)。
R1が(C1-C4)アルキルであり、
R2が(C1-C4)パーフルオロアルキルであり、
R3が1~9個のフッ素原子により置換されていてもよい(C1-C4)アルキルであり、
R4及びR5が、それぞれ独立して、(C1-C4)アルキルである、方法。
R1がメチルであり、
R2がトリフルオロメチルであり、
R3がジフルオロメチルであり、
R4及びR5がメチルである、方法。
R4及びR5は、それぞれ独立して、1以上の置換基により置換されていてもよい(C1-C6)アルキル;1以上の置換基により置換されていてもよい(C3-C6)シクロアルキル;1以上の置換基により置換されていてもよい(C2-C6)アルケニル;1以上の置換基により置換されていてもよい(C2-C6)アルキニル;1以上の置換基により置換されていてもよい(C1-C6)アルコキシ;又は1以上の置換基により置換されていてもよい(C6-C10)アリールであり;又は
R4及びR5は、それらが結合している炭素原子と一緒になって、3~12員の炭素環を形成し、ここで形成された環は1以上の置換基により置換されていてもよい。)。
R1が(C1-C4)アルキルであり、
R2が(C1-C4)パーフルオロアルキルであり、
R3が1~9個のフッ素原子により置換されていてもよい(C1-C4)アルキルであり、
R4及びR5が、それぞれ独立して、(C1-C4)アルキルである、方法。
R1がメチルであり、
R2がトリフルオロメチルであり、
R3がジフルオロメチルであり、
R4及びR5がメチルである、方法。
Me:メチル
Et:エチル
Pr、n-Pr及びPr-n:プロピル(すなわち、ノルマルプロピル)
i-Pr及びPr-i:イソプロピル
Bu、n-Bu及びBu-n:ブチル(すなわち、ノルマルブチル)
s-Bu及びBu-s:sec-ブチル(すなわち、セカンダリーブチル)
i-Bu及びBu-i:イソブチル
t-Bu及びBu-t:tert-ブチル(すなわち、ターシャリーブチル)
Ph:フェニル
n-:ノルマル
s-及びsec-:セカンダリー
i-及びiso-:イソ
t-及びtert-:ターシャリー
c-及びcyc-:シクロ
o-:オルソ
m-:メタ
p-:パラ
用語「シアノ」または「ニトリル」は置換基「-CN」を意味する。
用語「ヒドロキシ」は置換基「-OH」を意味する。
用語「アミノ」は置換基「-NH2」を意味する。
原料として、式(1)の化合物を用いる。式(1)の化合物は公知の化合物であるか、又は公知の化合物から公知の方法に準じて製造することができる。式(1)の化合物の特に好ましい具体的な例は下記の通りである:
生成物は、原料として用いた式(1)の化合物に対応する式(2)の化合物である。式(2)の化合物の特に好ましい具体的な例は下記の通りである:
酸化剤の例は、過酸化物、次亜塩素酸塩(例えば、次亜塩素酸ナトリウム、次亜塩素酸カリウム)、マンガン酸塩、二酸化マンガン等を含むが、これらに限定されない。過酸化物の例は、過酸化水素、過酸及びその塩(例えば、過酢酸)、過硫酸類及びその塩(例えば、ペルオキシ一硫酸カリウム(オキソン(登録商標))、ペルオキソ二硫酸ナトリウム)等を含むが、これらに限定されない。安全性、経済効率等の観点から、好ましい酸化剤の例は、過酸化水素を含む。
反応が進行する限りは、金属触媒はいずれの金属触媒でもよい。金属触媒の例は、以下を含むが、これらに限定されない:
タングステン触媒(例えば、タングステン酸、タングステン酸塩(例えば、タングステン酸ナトリウム(タングステン酸ナトリウム二水和物及びタングステン酸ナトリウム十水和物を含む)、タングステン酸カリウム、タングステン酸カルシウム、タングステン酸アンモニウム)、金属タングステン、酸化タングステン(例えば、酸化タングステン(VI)、酸化タングステン(VI)は三酸化タングステンとも言う)、炭化タングステン、塩化タングステン(例えば、塩化タングステン(VI)、塩化タングステン(VI)は六塩化タングステンとも言う)、臭化タングステン(例えば、臭化タングステン(V))、硫化タングステン(例えば、硫化タングステン(IV)、硫化タングステン(IV)は二硫化タングステンとも言う)、リンタングステン酸及びその塩(例えば、リンタングステン酸、リンタングステン酸ナトリウム、リンタングステン酸アンモニウム等)、ケイタングステン酸及びその塩(例えば、ケイタングステン酸、ケイタングステン酸ナトリウム等)等、及びそれらの混合物)、
モリブデン触媒(例えば、モリブデン酸、モリブデン酸塩、(例えば、モリブデン酸ナトリウム(モリブデン酸ナトリウム二水和物を含む)、モリブデン酸カリウム、モリブデン酸アンモニウム(モリブデン酸アンモニウム四水和物を含む)、金属モリブデン、酸化モリブデン(例えば、酸化モリブデン(VI)、酸化モリブデン(VI)は三酸化モリブデンとも言う)、塩化モリブデン(塩化モリブデン(V)、塩化モリブデン(V)は五塩化モリブデンとも言う)、硫化モリブデン(例えば、硫化モリブデン(IV)、硫化モリブデン(IV)は二硫化モリブデンとも言う)、リンモリブデン酸及びその塩(例えば、リンモリブデン酸、リンモリブデン酸ナトリウム、リンモリブデン酸アンモニウム等)、ケイモリブデン酸及びその塩(例えば、ケイモリブデン酸、ケイモリブデン酸ナトリウム等)、ビス(2,4-ペンタンジオナト)モリブデン(VI)ジオキシド等、及びそれらの混合物)、
鉄触媒(例えば、鉄(I)アセチルアセトネート、塩化鉄(I)、硝酸鉄(I)等、及びそれらの混合物)、
マンガン触媒(例えば、過マンガン酸カリウム、酸化マンガン(II)、塩化マンガン(II)等、及びそれらの混合物)、
バナジウム触媒(例えば、バナジルアセチルアセトナート、酸化バナジウム(V)、オキシ三塩化バナジウム(V)、バナジウム(V)オキシトリエトキシド、バナジウム(V)オキシトリイソプロポキシド等、及びそれらの混合物)、
ニオブ触媒(例えば、炭化ニオブ、塩化ニオブ(V)、ニオブ(V)ペンタエトキシド等、及びそれらの混合物)、
タンタル触媒(例えば、炭化タンタル(TaC)、塩化タンタル(V)(TaCl5)、タンタル(V)ペンタエトキシド(Ta(OEt)5)等、及びそれらの混合物)、
チタン触媒(例えば、四塩化チタン、三塩化チタン、チタン(IV)テトライソプロポキシド等、及びそれらの混合物)、
ジルコニウム触媒(例えば、二酸化ジルコニウム、塩化ジルコニウム(I)、塩化ジルコニウム(IV)、塩化酸化ジルコニウム等、及びそれらの混合物)、
銅触媒(例えば、酢酸銅(I)、酢酸銅(II)、臭化銅(I)、ヨウ化銅(I)等、及びそれらの混合物)、
タリウム触媒(例えば、硝酸タリウム(I)、酢酸タリウム(I)、トリフルオロ酢酸タリウム(I)等、及びそれらの混合物)。
従って、例えば、「タングステン酸ナトリウム」は「タングステン酸ナトリウム二水和物」及び「タングステン酸ナトリウム十水和物」を包含する。
本明細書中、ポリ酸の形態になり得る酸とその塩(例えば、タングステン酸及びその塩等)は、ポリ酸の形態であってもよく、いずれの形態も本発明の範囲内である。
タングステン酸、タングステン酸塩、金属タングステン、酸化タングステン、炭化タングステン、塩化タングステン、硫化タングステン、リンタングステン酸、ケイタングステン酸及びその塩、並びにそれらの混合物、
より好ましくはタングステン酸、タングステン酸塩、金属タングステン、酸化タングステン、炭化タングステン、塩化タングステン及びその塩、並びにそれらの混合物、
更に好ましくはタングステン酸、タングステン酸塩、金属タングステン、酸化タングステン、炭化タングステン、及びそれらの混合物、
更に好ましくはタングステン酸、タングステン酸ナトリウム、タングステン酸カリウム、タングステン酸カルシウム、タングステン酸アンモニウム、金属タングステン、酸化タングステン(VI)、炭化タングステン、及びそれらの混合物
更に好ましくはタングステン酸、タングステン酸ナトリウム、金属タングステン、炭化タングステン、及びそれらの混合物、
更に好ましくはタングステン酸及びタングステン酸ナトリウム、特に好ましくはタングステン酸ナトリウム。
モリブデン酸、モリブデン酸塩、金属モリブデン、酸化モリブデン、炭化モリブデン、塩化モリブデン、硫化モリブデン、臭化モリブデン、リンモリブデン酸、ケイモリブデン酸及びその塩、並びにそれらの混合物、
より好ましくは、モリブデン酸、モリブデン酸塩、金属モリブデン、炭化モリブデン、酸化モリブデン、塩化モリブデン及びそれらの混合物、
更に好ましくは、モリブデン酸、モリブデン酸ナトリウム、モリブデン酸カリウム、モリブデン酸アンモニウム、酸化モリブデン(VI)、炭化モリブデン、塩化モリブデン(V)、硫化モリブデン(IV)、リンモリブデン酸、リンモリブデン酸ナトリウム、リンモリブデン酸アンモニウム、ケイモリブデン酸、ケイモリブデン酸ナトリウム、及びそれらの混合物、
更に好ましくはモリブデン酸、モリブデン酸ナトリウム、モリブデン酸カリウム、モリブデン酸アンモニウム、酸化モリブデン(VI)、塩化モリブデン(V)、及びそれらの混合物、
更に好ましくは、モリブデン酸ナトリウム、モリブデン酸カリウム、モリブデン酸アンモニウム、
特に好ましくは、モリブデン酸アンモニウム。
タングステン酸、タングステン酸ナトリウム、タングステン酸カリウム、タングステン酸カルシウム、タングステン酸アンモニウム、金属タングステン、酸化タングステン、炭化タングステン、
モリブデン酸ナトリウム、モリブデン酸カリウム、モリブデン酸アンモニウム。
タングステン酸、タングステン酸ナトリウム、
モリブデン酸ナトリウム、モリブデン酸カリウム、モリブデン酸アンモニウム。
タングステン酸ナトリウム、モリブデン酸アンモニウム。
式(a)のカルボン酸;
本発明の酸化反応は、酸触媒の存在下で行ってもよく、又は酸触媒の非存在下で行ってもよい。酸触媒を用いるか否かは、当業者が適切に決定することができる。酸触媒の酸は、カルボン酸以外の酸である。酸触媒の例は、以下を含むが、これらに限定されない:塩酸、硫酸、硝酸等の鉱酸類、メタンスルホン酸、トリフルオロメタンスルホン酸、ベンゼンスルホン酸、p-トルエンスルホン酸等のスルホン酸類、リン酸、リン酸メチル、リン酸エチル、リン酸フェニル等のリン酸類、好ましくは硫酸、リン酸、リン酸フェニル、より好ましくは硫酸、リン酸フェニル、更に好ましくは硫酸。酸触媒はそれらの塩であってもよい。
本発明の酸化反応は、相間移動触媒の存在下で行ってもよい。又は相間移動触媒の非存在下で行ってもよい。相間移動触媒を用いるか否かは、当業者が適切に決定することができる。相間移動触媒の例は、以下を含むが、これらに限定されない:四級アンモニウム塩(例えば、テトラブチルアンモニウムクロリド、テトラブチルアンモニウムブロミド、テトラブチルアンモニウムヨージド、硫酸水素テトラブチルアンモニウム、ベンジルトリメチルアンモニウムクロリド、ベンジルトリメチルアンモニウムブロミド、オクチルトリメチルアンモニウムクロリド、オクチルトリメチルアンモニウムブロミド、トリオクチルメチルアンモニウムクロリド、トリオクチルメチルアンモニウムブロミド、ベンジルラウリルジメチルアンモニウムクロリド(ベンジルドデシルジメチルアンモニウムクロリド)、ベンジルラウリルジメチルアンモニウムブロミド(ベンジルドデシルジメチルアンモニウムブロミド)、ミリスチルトリメチルアンモニウムクロリド(テトラデシルトリメチルアンモニウムクロリド)、ミリスチルトリメチルアンモニウムブロミド(テトラデシルトリメチルアンモニウムブロミド)、ベンジルジメチルステアリルアンモニウムクロリド(ベンジルオクタデシルジメチルアンモニウムクロリド)、ベンジルジメチルステアリルアンモニウムブロミド(ベンジルオクタデシルジメチルアンモニウムブロミド)等)、四級ホスホニウム塩(テトラブチルホスホニウムブロミド、テトラオクチルホスホニウムブロミド、テトラフェニルホスホニウムブロミド等)、クラウンエーテル(例えば、12-クラウン-4、15-クラウン-5、18-クラウン-6等)等。収率、副生成物抑制、経済効率等の観点から、相間移動触媒の好ましい例は、テトラブチルアンモニウムクロリド、テトラブチルアンモニウムブロミド、硫酸水素テトラブチルアンモニウム、より好ましくは硫酸水素テトラブチルアンモニウムを含む。硫酸水素テトラブチルアンモニウムはTBAHSと略記してもよい。
反応の円滑な進行等の観点から、本発明の酸化反応は溶媒の存在下で行うことが好ましい。反応溶媒は、反応が進行する限りは、いずれの溶媒でもよい。反応溶媒は、カルボン酸であってもよく、カルボン酸以外の有機溶媒であってもよい。いずれの場合も、水溶媒の存在下であってよい。
2-プロパノールはイソプロピルアルコール又はイソプロパノールとも言う。
tert-ブタノールはtert-ブチルアルコールとも言う。
本明細書中、アクセプター数(acceptor number)に関しては、例えば、次の文献を参照することができる。Christian Reichardt, "Solvents and Solvent Effects in Organic Chemistry", 3rd, updated and enlarged edition, WILEY-VCH, 2003, p. 25-26. 31P-NMR化学シフト値を利用したアクセプター数の定義は、前記文献に記載されており、これは参照により本発明に組み込まれる。指定された値を有する溶媒の例は、前記文献に記載されており、これらは参照により本発明に組み込まれる。
本明細書中、比誘電率(relative permittivity)(一般に「dielectric constant」としても知られる)に関しては、例えば、次の文献を参照することができる。日本化学会編、「化学便覧(基礎編)」、丸善株式会社、改訂5版、2004年、I-770~777頁。A. Maryott and Edgar R. Smith, National Bureau of Standards Circular 514, Table of Dielectric Constants of Pure Liquids, United States Department of Commerce, National Bureau of Standards, August 10, 1951. これらは参照により本発明に組み込まれる。指定された値を有する溶媒の例は、前記文献に記載されており、これらは参照により本発明に組み込まれる。
Rohrschneiderの極性パラメータに関しては、例えば、次のウェブサイトを参照できる。https://www.shodex.com/ja/dc/06/0117.html これらは参照により本発明に組み込まれる。指定された値を有する溶媒の例は、前記文献に記載されており、これらは参照により本発明に組み込まれる。
本発明の効果を示す限りは、反応温度は、特に制限されない。しかしながら、収率、副生成物抑制、経済効率等の観点から、一つの態様では、反応温度の下限は、例えば、10℃以上、好ましくは、20℃以上、25℃以上、35℃以上、35℃超、40℃以上、45℃以上、50℃以上である。反応温度の上限は、例えば、200℃以下、150℃以下、100℃以下、好ましくは、80℃以下、より好ましくは、75℃以下、75℃未満、70℃以下、70℃未満、65℃以下、60℃以下、更に好ましくは、55℃以下、55℃未満、50℃以下、50℃未満、45℃以下、40℃以下、35℃以下である。反応温度の範囲は、例えば、上記の下限と上限の適宜な且つ任意の組み合わせである。例えば、上限と下限の組み合わせは、以下の通りであるが、これらに限定されない。上記と同様の観点から、別の態様では、反応温度は、例えば、10℃以上100℃以下、好ましくは20℃以上100℃以下、より好ましくは35℃超100℃以下、更に好ましくは40℃以上100℃以下、更に好ましくは45℃以上100℃以下、更に好ましくは50℃以上100℃以下である。上記と同様の観点から、更に別の態様では、反応温度は、例えば、10℃以上80℃以下、好ましくは20℃以上80℃以下、より好ましくは35℃超80℃以下、更に好ましくは40℃以上80℃以下、更に好ましくは45℃以上80℃以下、更に好ましくは50℃以上80℃以下である。上記と同様の観点から、更に別の態様では、反応温度は、例えば、10℃以上60℃以下、好ましくは20℃以上60℃以下、より好ましくは35℃超60℃以下、更に好ましくは40℃以上60℃以下、更に好ましくは45℃以上60℃以下、更に好ましくは50℃以上60℃以下である。反応温度は、低いほど安全面で好ましく、室温(常温)に近いほど環境に優しく、持続可能性(sustainability)に貢献するが、これらにより限定されない。
本発明の効果を示す限りは、反応時間は、特に制限されない。しかしながら、収率、副生成物抑制、経済効率等の観点から、一つの態様では、反応時間の下限は、例えば、1時間以上、1時間30分以上、2時間以上であるが、これらに限定されない。一つの態様では、反応時間の上限は、例えば、48時間以下、36時間以下、好ましくは24時間以下、16時間以下、12時間以下であるが、これらに限定されない。別の態様では、反応時間の上限は、例えば、8時間以下、6時間以下、5時間以下、4時間以下であるが、これらに限定されない。反応時間の範囲は、例えば、上記の下限と上限の適宜な且つ任意の組み合わせである。は、例えば、1時間~48時間、1時間~36時間、より好ましくは1時間~24時間、であるが、これらに限定されない。しかしながら、反応時間は、目的と状況に応じて、当業者が適切に調整することができる。
(HPLC分析条件)
機器:株式会社島津製作所製LC2010シリーズ又はこれに準ずるもの
カラム:YMC-Pack, ODS-A, A-312 (150mmx6.0mmID, S-5μm, 120A)
溶離液:
検出:UV 230nm
カラム温度:40℃
注入量:5 μL
文献(a):(社)日本化学会編、「新実験化学講座9 分析化学 II」、第86~112頁(1977年)、発行者 飯泉新吾、丸善株式会社
文献(b):(社)日本化学会編、「実験化学講座20-1 分析化学」第5版、第130~151頁(2007年)、発行者 村田誠四郎、丸善株式会社
機器:JEOL JMN-ECS-300又はJEOL JMN-Lambda-400(JEOL RESONANCE製)
溶媒:CDCl3及び/又はDMSO-d6
内部基準物質:テトラメチルシラン(TMS)及び当業者に知られたその他。
特に指定しない限り、本発明における収率は、原料化合物(出発化合物)のモル数に対する、得られた目的化合物のモル数から計算することができる。
すなわち、用語「収率」は、「モル収率」を意味する。
従って、収率は、以下の式により表される:
収率(%)=(得られた目的化合物のmol数)/(出発化合物のmol数)×100
3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルホニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物2-a)の製造
反応中間体である、3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルフィニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物3-a;SO誘導体)は、この時点で2.51%(HPLC面積百分率;230nm)であった。混合物は均一であった。
反応混合物にアセトニトリルを加えた。HPLC外部標準法による分析の結果、目的物(2-a)の収率は95.6%であった。
1H-NMR値(CDCl3/TMS δ(ppm)):6.83(1H,t,J=71.9Hz)、4.60(2H,s)、3.88(3H,s)、3.11(2H,s)、1.52(6H,s)
3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルホニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物2-a)の製造
反応中間体である、3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルフィニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物3-a;SO誘導体)は、この時点で1.90%(HPLC面積百分率;230nm)であった。
反応混合物にアセトニトリルを加えた。HPLC外部標準法による分析の結果、目的物(2-a)の収率は97.4%であった。
3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルホニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物2-a)の製造
反応中間体である、3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルフィニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物3-a;SO誘導体)は、この時点で2.87%(HPLC面積百分率;230nm)であった。
反応混合物にアセトニトリルを加えた。HPLC外部標準法による分析の結果、目的物(2-a)の収率は96.4%であった。
特表2013-512201(JP2013-512201A)(特許文献3)実施例9Cの再現実験
3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルホニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物2-a)の製造
反応中間体である、3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルフィニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物3-a;SO誘導体)は、熟成16時間の時点で5.0%であった(HPLC面積百分率)。
反応混合物に水4gを添加し、10℃で1時間熟成した後、析出した結晶を濾別した。
得られた結晶を石油エーテル20ml及び水20mlで順次洗浄した。得られた結晶をHPLC(面積百分率;230nm)により分析したところ、反応中間体である、3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルフィニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物3-a;SO誘導体)は、HPLC面積百分率5.5%であった。
中国特許公開第111574511号(CN111574511A)(特許文献5)実施例5の再現実験
3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルホニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物2-a)の製造
反応中間体である、3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルフィニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物3-a;SO誘導体)は、この時点で12.74%(HPLC面積百分率;230nm)であった。
反応混合物にアセトニトリルを加え均一な溶液にした。HPLC外部標準法による分析の結果、目的物(2-a)の収率は79.9%であった。
3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルホニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物2-a)の製造
反応中間体である、3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルフィニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物6-a;SO誘導体)は、この時点で0%(HPLC面積百分率;230nm)であった。
反応混合物にアセトニトリルを加え均一な溶液にした。HPLC外部標準法による分析の結果、目的物(2-a)の収率は88.0%であった。
3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルホニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物2-a)の製造
反応中間体である、3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルフィニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物3-a;SO誘導体)は、この時点で0.4%(HPLC面積百分率;230nm)であった。
反応混合物にアセトニトリルを加え均一な溶液にした。HPLC外部標準法による分析の結果、目的物(2-a)の収率は89.6%であった。
3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルホニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物2-a)の製造
反応中間体である、3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルフィニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物3-a;SO誘導体)は、この時点で1.1%(HPLC面積百分率;230nm)であった。
反応混合物にアセトニトリルを加え均一な溶液にした。HPLC外部標準法による分析の結果、目的物(2-a)の収率は90.0%であった。
3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルホニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物2-a)の製造
反応中間体である、3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルフィニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物3-a;SO誘導体)は、この時点で2.15%(HPLC面積百分率;230nm)であった。
反応混合物にアセトニトリルを加え均一な溶液にした。HPLC外部標準法による分析の結果、目的物(2-a)の収率は94.1%であった。
3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルホニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物2-a)の製造
反応中間体である、3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルフィニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物3-a;SO誘導体)は、この時点で0.22%(HPLC面積百分率;230nm)であった。
反応混合物にアセトニトリルを加えた。HPLC外部標準法による分析の結果、目的物(2-a)の収率は91.3%であった。
3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルホニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物2-a)の製造
混合物を内温50℃~55℃で攪拌し、3時間熟成した。
反応中間体である、3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルフィニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物3-a;SO誘導体)は、この時点で0%(HPLC面積百分率;230nm)であった。
反応混合物にアセトニトリルを加えた。HPLC外部標準法による分析の結果、目的物(2-a)の収率は95.5%であった。
3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルホニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物2-a)の製造
反応中間体である、3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルフィニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物3-a;SO誘導体)は、この時点で1.98%(HPLC面積百分率;230nm)であった。
反応混合物にアセトニトリルを加え均一な溶液にした。HPLC外部標準法による分析の結果、目的物(2-a)の収率は96.2%であった。
3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルホニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物2-a)の製造
反応中間体である、3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルフィニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物3-a;SO誘導体)は、この時点で1.88%(HPLC面積百分率;230nm)であった。
反応混合物にアセトニトリルを加え均一な溶液にした。HPLC外部標準法による分析の結果、目的物(2-a)の収率は93.0%であった。
3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルホニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物2-a)の製造
反応中間体である、3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルフィニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物3-a;SO誘導体)は、この時点で0.61%(HPLC面積百分率;230nm)であった。
反応混合物にアセトニトリルを加え均一な溶液にした。HPLC外部標準法による分析の結果、目的物(2-a)の収率は94.3%であった。
3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルホニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物2-a)の製造
反応中間体である、3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルフィニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物3-a;SO誘導体)は、この時点で0.95%(HPLC面積百分率;230nm)であった。
反応混合物にアセトニトリルを加え均一な溶液にした。HPLC外部標準法による分析の結果、目的物(2-a)の収率は91.0%であった。
3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルホニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物2-a)の製造
反応中間体である、3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルフィニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物3-a;SO誘導体)は、この時点で1.71%(HPLC面積百分率;230nm)であった。
反応混合物にアセトニトリルを加え均一な溶液にした。HPLC外部標準法による分析の結果、目的物(2-a)の収率は95.6%であった。
3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルホニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物2-a)の製造
反応中間体である、3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルフィニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物3-a;SO誘導体)は、この時点で0%(HPLC面積百分率;230nm)であった。
反応混合物にアセトニトリルを加えた。HPLC外部標準法による分析の結果、目的物(2-a)の収率は97.8%であった。
3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルホニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物2-a)の製造
反応中間体である、3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルフィニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物3-a;SO誘導体)は、この時点で0.45%(HPLC面積百分率;230nm)であった。
反応混合物にアセトニトリルを加えた。HPLC外部標準法による分析の結果、目的物(2-a)の収率は97.5%であった。
3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルホニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物2-a)の製造
反応中間体である、3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルフィニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物3-a;SO誘導体)は、この時点で0.16%(HPLC面積百分率;230nm)であった。
反応混合物にアセトニトリルを加えた。HPLC外部標準法による分析の結果、目的物(2-a)の収率は98.1%であった。
3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルホニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物2-a)の製造
反応中間体である、3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルフィニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物3-a;SO誘導体)は、この時点で2.87%(HPLC面積百分率;230nm)であった。
反応混合物にアセトニトリルを加え均一な溶液にした。HPLC外部標準法による分析の結果、目的物(2-a)の収率は93.3%であった。
3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルホニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物2-a)の製造
反応中間体である、3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルフィニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物3-a;SO誘導体)は、この時点で0%(HPLC面積百分率;230nm)であった。
反応混合物にアセトニトリルを加えた。HPLC外部標準法による分析の結果、目的物(2-a)の収率は89.9%であった。
3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルホニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物2-a)の製造
反応中間体である、3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルフィニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物3-a;SO誘導体)は、この時点で0%(HPLC面積百分率;230nm)であった。
反応混合物にアセトニトリルを加えた。HPLC外部標準法による分析の結果、目的物(2-a)の収率は91.7%であった。
3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルホニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物2-a)の製造
反応中間体である、3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルフィニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物3-a;SO誘導体)は、この時点で0%(HPLC面積百分率;230nm)であった。
反応混合物にアセトニトリルを加えた。HPLC外部標準法による分析の結果、目的物(2-a)の収率は91.3%であった。
3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルホニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物2-a)の製造
反応中間体である、3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルフィニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物3-a;SO誘導体)は、この時点で0%(HPLC面積百分率;230nm)であった。
反応混合物にアセトニトリルを加えた。HPLC外部標準法による分析の結果、目的物(2-a)の収率は91.7%であった。
3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルホニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物2-a)の製造
反応中間体である、3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルフィニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物3-a;SO誘導体)は、この時点で0%(HPLC面積百分率;230nm)であった。
反応混合物にアセトニトリルを加え均一な溶液にした。HPLC外部標準法による分析の結果、目的物(2-a)の収率は86.5%であった。
3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルホニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物2-a)の製造
反応中間体である、3-[(5-ジフルオロメトキシ-1-メチル-3-トリフルオロメチルピラゾール-4-イル)メチルスルフィニル]-4,5-ジヒドロ-5,5-ジメチルイソオキサゾール(化合物3-a;SO誘導体)は、この時点で0%(HPLC面積百分率;230nm)であった。
反応混合物にアセトニトリルを加えた。HPLC外部標準法による分析の結果、目的物(2-a)の収率は89.3%であった。
Claims (23)
- 式(2)の化合物の製造方法であって、金属触媒の存在下で、及びカルボン酸の存在下で、式(1)の化合物を酸化剤と反応させることを含む方法であり、
ここで反応が35℃超で行われる方法;
R4及びR5は、それぞれ独立して、1以上の置換基により置換されていてもよい(C1-C6)アルキル;1以上の置換基により置換されていてもよい(C3-C6)シクロアルキル;1以上の置換基により置換されていてもよい(C2-C6)アルケニル;1以上の置換基により置換されていてもよい(C2-C6)アルキニル;1以上の置換基により置換されていてもよい(C1-C6)アルコキシ;又は1以上の置換基により置換されていてもよい(C6-C10)アリールであり;又は
R4及びR5は、それらが結合している炭素原子と一緒になって、3~12員の炭素環を形成し、ここで形成された環は1以上の置換基により置換されていてもよい。)。 - 請求項1に記載の方法であって、反応が40℃以上で行われる方法。
- 請求項1に記載の方法であって反応が45℃以上で行われる方法。
- 請求項1から3のいずれか1項に記載の方法であって、反応が60℃以下で行われる方法。
- 請求項1から3のいずれか1項に記載の方法であって、反応が55℃以下で行われる方法。
- 式(2)の化合物の製造方法であって、金属触媒の存在下で、及びカルボン酸の存在下で、式(1)の化合物を酸化剤と反応させることを含む方法であり、
カルボン酸の量が、式(1)の化合物1モルに対して、18モル以上である方法;
R4及びR5は、それぞれ独立して、1以上の置換基により置換されていてもよい(C1-C6)アルキル;1以上の置換基により置換されていてもよい(C3-C6)シクロアルキル;1以上の置換基により置換されていてもよい(C2-C6)アルケニル;1以上の置換基により置換されていてもよい(C2-C6)アルキニル;1以上の置換基により置換されていてもよい(C1-C6)アルコキシ;又は1以上の置換基により置換されていてもよい(C6-C10)アリールであり;又は
R4及びR5は、それらが結合している炭素原子と一緒になって、3~12員の炭素環を形成し、ここで形成された環は1以上の置換基により置換されていてもよい。)。 - 請求項6に記載の方法であって、カルボン酸の量が、式(1)の化合物1モルに対して、30モル以上である方法。
- 請求項6に記載の方法であって、カルボン酸の量が、式(1)の化合物1モルに対して、35モル以上である方法。
- 式(2)の化合物の製造方法であって、金属触媒の存在下で、及びカルボン酸の存在下で、式(1)の化合物を酸化剤と反応させることを含む方法であり、
ここで反応がカルボン酸を除く有機溶媒の存在下で行われる方法;
R4及びR5は、それぞれ独立して、1以上の置換基により置換されていてもよい(C1-C6)アルキル;1以上の置換基により置換されていてもよい(C3-C6)シクロアルキル;1以上の置換基により置換されていてもよい(C2-C6)アルケニル;1以上の置換基により置換されていてもよい(C2-C6)アルキニル;1以上の置換基により置換されていてもよい(C1-C6)アルコキシ;又は1以上の置換基により置換されていてもよい(C6-C10)アリールであり;又は
R4及びR5は、それらが結合している炭素原子と一緒になって、3~12員の炭素環を形成し、ここで形成された環は1以上の置換基により置換されていてもよい。)。 - 請求項9に記載の方法であって、有機溶媒が、芳香族炭化水素誘導体類、ハロゲン化脂肪族炭化水素類、アルコール類、ニトリル類、カルボン酸エステル類、アミド類から選択される方法。
- 請求項9に記載の方法であって、有機溶媒が、ハロゲン化脂肪族炭化水素類、アルコール類、ニトリル類から選択される方法。
- 請求項9に記載の方法であって、有機溶媒が、1~10個のハロゲン原子により置換されていてもよい(C1-C4)アルカン、(C1-C6)アルコール、(C2-C5)アルカンニトリルから選択される方法。
- 請求項9に記載の方法であって、有機溶媒が、ジクロロメタン、メタノール、アセトニトリルから選択される方法。
- 請求項1から13のいずれか1項に記載の方法であって、カルボン酸が、酢酸である方法。
- 請求項1から13のいずれか1項に記載の方法であって、カルボン酸が、ジクロロ酢酸である方法。
- 請求項1から13のいずれか1項に記載の方法であって、カルボン酸が、トリクロロ酢酸である方法。
- 請求項1から17のいずれか1項に記載の方法であって、金属触媒がタングステン触媒、モリブデン触媒から選択される方法。
- 請求項1から17のいずれか1項に記載の方法であって、金属触媒がタングステン触媒である方法。
- 請求項1から17のいずれか1項に記載の方法であって、金属触媒がモリブデン触媒である方法。
- 請求項1から20のいずれか1項に記載の方法であって、酸化剤が過酸化水素である方法。
- 請求項1から21のいずれか1項に記載の方法であって、
R1が(C1-C4)アルキルであり、
R2が(C1-C4)パーフルオロアルキルであり、
R3が1~9個のフッ素原子により置換されていてもよい(C1-C4)アルキルであり、
R4及びR5が、それぞれ独立して、(C1-C4)アルキルである、方法。 - 請求項1から21のいずれか1項に記載の方法であって、
R1がメチルであり、
R2がトリフルオロメチルであり、
R3がジフルオロメチルであり、
R4及びR5がメチルである、方法。
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CN111393427A (zh) * | 2020-04-30 | 2020-07-10 | 安徽久易农业股份有限公司 | 一种砜吡草唑的合成方法 |
CN111574511A (zh) * | 2020-06-28 | 2020-08-25 | 安徽久易农业股份有限公司 | 一种砜吡草唑的合成方法及其应用 |
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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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 |
CN111393427A (zh) * | 2020-04-30 | 2020-07-10 | 安徽久易农业股份有限公司 | 一种砜吡草唑的合成方法 |
CN111574511A (zh) * | 2020-06-28 | 2020-08-25 | 安徽久易农业股份有限公司 | 一种砜吡草唑的合成方法及其应用 |
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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 |
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BR112023011805A2 (pt) | 2023-10-03 |
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CA3203671A1 (en) | 2022-09-15 |
AU2022233921A9 (en) | 2024-02-08 |
AU2022233921A1 (en) | 2023-06-22 |
IL303400A (en) | 2023-08-01 |
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TW202302580A (zh) | 2023-01-16 |
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