JP5844706B2 - Method for producing difluoromethyl group-containing compound - Google Patents
Method for producing difluoromethyl group-containing compound Download PDFInfo
- Publication number
- JP5844706B2 JP5844706B2 JP2012212058A JP2012212058A JP5844706B2 JP 5844706 B2 JP5844706 B2 JP 5844706B2 JP 2012212058 A JP2012212058 A JP 2012212058A JP 2012212058 A JP2012212058 A JP 2012212058A JP 5844706 B2 JP5844706 B2 JP 5844706B2
- Authority
- JP
- Japan
- Prior art keywords
- oxo
- indanecarboxylate
- difluoromethyl
- methyl
- group
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 125000001028 difluoromethyl group Chemical group [H]C(F)(F)* 0.000 title claims description 18
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- 150000001875 compounds Chemical class 0.000 title claims description 11
- -1 n-propoxycarbonyl group Chemical group 0.000 claims description 76
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 18
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 15
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 12
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims description 10
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 claims description 10
- 125000004432 carbon atom Chemical group C* 0.000 claims description 8
- CUONGYYJJVDODC-UHFFFAOYSA-N malononitrile Chemical group N#CCC#N CUONGYYJJVDODC-UHFFFAOYSA-N 0.000 claims description 8
- 125000003118 aryl group Chemical group 0.000 claims description 4
- YTXLCIROFMYQAZ-UHFFFAOYSA-N CC1=CC(=C(C(=C1C)C)C)C2=C(SC(=C2Br)C(F)F)C3=CC=CC=C3 Chemical compound CC1=CC(=C(C(=C1C)C)C)C2=C(SC(=C2Br)C(F)F)C3=CC=CC=C3 YTXLCIROFMYQAZ-UHFFFAOYSA-N 0.000 claims description 3
- 125000004430 oxygen atom Chemical group O* 0.000 claims description 3
- ITMCEJHCFYSIIV-UHFFFAOYSA-M triflate Chemical compound [O-]S(=O)(=O)C(F)(F)F ITMCEJHCFYSIIV-UHFFFAOYSA-M 0.000 claims description 3
- 125000003277 amino group Chemical group 0.000 claims description 2
- 125000001584 benzyloxycarbonyl group Chemical group C(=O)(OCC1=CC=CC=C1)* 0.000 claims description 2
- 125000006165 cyclic alkyl group Chemical group 0.000 claims description 2
- 125000003754 ethoxycarbonyl group Chemical group C(=O)(OCC)* 0.000 claims description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 2
- 125000005928 isopropyloxycarbonyl group Chemical group [H]C([H])([H])C([H])(OC(*)=O)C([H])([H])[H] 0.000 claims description 2
- 125000001160 methoxycarbonyl group Chemical group [H]C([H])([H])OC(*)=O 0.000 claims description 2
- 125000006678 phenoxycarbonyl group Chemical group 0.000 claims description 2
- 125000005931 tert-butyloxycarbonyl group Chemical group [H]C([H])([H])C(OC(*)=O)(C([H])([H])[H])C([H])([H])[H] 0.000 claims description 2
- 125000003396 thiol group Chemical group [H]S* 0.000 claims description 2
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 21
- 239000006227 byproduct Substances 0.000 description 19
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 12
- 238000002360 preparation method Methods 0.000 description 12
- 239000000047 product Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 8
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 8
- 239000012043 crude product Substances 0.000 description 8
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 8
- 239000002904 solvent Substances 0.000 description 8
- IEQHHFPXXYXCSE-UHFFFAOYSA-N 3-bromo-2-(difluoromethyl)-5-phenyl-4-(2,3,4,5-tetramethylphenyl)thiophen-1-ium trifluoromethanesulfonate Chemical compound FC(S(=O)(=O)[O-])(F)F.C1(=CC=CC=C1)C1=C(C(=C([SH+]1)C(F)F)Br)C1=C(C(=C(C(=C1)C)C)C)C IEQHHFPXXYXCSE-UHFFFAOYSA-N 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 6
- VJFXACXMPIKWFZ-UHFFFAOYSA-N C1CC2=CC=CC=C2C(=C(C#N)C#N)C1C(F)F Chemical compound C1CC2=CC=CC=C2C(=C(C#N)C#N)C1C(F)F VJFXACXMPIKWFZ-UHFFFAOYSA-N 0.000 description 6
- 229910052786 argon Inorganic materials 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 6
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 6
- GQHTUMJGOHRCHB-UHFFFAOYSA-N 2,3,4,6,7,8,9,10-octahydropyrimido[1,2-a]azepine Chemical compound C1CCCCN2CCCN=C21 GQHTUMJGOHRCHB-UHFFFAOYSA-N 0.000 description 5
- YHFWGIKMWMZVQG-UHFFFAOYSA-N COC(=O)C1=CC2=CC=CC=C2C1OC(F)F Chemical compound COC(=O)C1=CC2=CC=CC=C2C1OC(F)F YHFWGIKMWMZVQG-UHFFFAOYSA-N 0.000 description 5
- 239000002585 base Substances 0.000 description 5
- VHYFNPMBLIVWCW-UHFFFAOYSA-N 4-Dimethylaminopyridine Chemical compound CN(C)C1=CC=NC=C1 VHYFNPMBLIVWCW-UHFFFAOYSA-N 0.000 description 4
- LPGCBRFCWQXCLT-UHFFFAOYSA-N C1CC2=CC=CC=C2C(=C(C#N)C#N)C1C(F)(F)Br Chemical compound C1CC2=CC=CC=C2C(=C(C#N)C#N)C1C(F)(F)Br LPGCBRFCWQXCLT-UHFFFAOYSA-N 0.000 description 4
- NGAZZOYFWWSOGK-UHFFFAOYSA-N heptan-3-one Chemical compound CCCCC(=O)CC NGAZZOYFWWSOGK-UHFFFAOYSA-N 0.000 description 4
- 150000002576 ketones Chemical class 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 238000010898 silica gel chromatography Methods 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- YNMZZHPSYMOGCI-UHFFFAOYSA-N Aethyl-octyl-keton Natural products CCCCCCCCC(=O)CC YNMZZHPSYMOGCI-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- 241000283984 Rodentia Species 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 239000007983 Tris buffer Substances 0.000 description 3
- 239000003905 agrochemical Substances 0.000 description 3
- ZAJNGDIORYACQU-UHFFFAOYSA-N decan-2-one Chemical compound CCCCCCCCC(C)=O ZAJNGDIORYACQU-UHFFFAOYSA-N 0.000 description 3
- 239000000543 intermediate Substances 0.000 description 3
- JXJQORLQEHVRLE-UHFFFAOYSA-N methyl 2-(difluoromethyl)-3-oxo-1H-indene-2-carboxylate Chemical compound COC(=O)C1(Cc2ccccc2C1=O)C(F)F JXJQORLQEHVRLE-UHFFFAOYSA-N 0.000 description 3
- 239000011541 reaction mixture Substances 0.000 description 3
- VLPFTAMPNXLGLX-UHFFFAOYSA-N trioctanoin Chemical compound CCCCCCCC(=O)OCC(OC(=O)CCCCCCC)COC(=O)CCCCCCC VLPFTAMPNXLGLX-UHFFFAOYSA-N 0.000 description 3
- ULPMRIXXHGUZFA-UHFFFAOYSA-N (R)-4-Methyl-3-hexanone Natural products CCC(C)C(=O)CC ULPMRIXXHGUZFA-UHFFFAOYSA-N 0.000 description 2
- DCTOHCCUXLBQMS-UHFFFAOYSA-N 1-undecene Chemical compound CCCCCCCCCC=C DCTOHCCUXLBQMS-UHFFFAOYSA-N 0.000 description 2
- ZEJZIWLBVDFZEK-UHFFFAOYSA-N 2-(3,4-dihydro-2h-naphthalen-1-ylidene)propanedinitrile Chemical compound C1=CC=C2C(=C(C#N)C#N)CCCC2=C1 ZEJZIWLBVDFZEK-UHFFFAOYSA-N 0.000 description 2
- LSKONYYRONEBKA-UHFFFAOYSA-N 2-Dodecanone Chemical compound CCCCCCCCCCC(C)=O LSKONYYRONEBKA-UHFFFAOYSA-N 0.000 description 2
- QQZOPKMRPOGIEB-UHFFFAOYSA-N 2-Oxohexane Chemical compound CCCCC(C)=O QQZOPKMRPOGIEB-UHFFFAOYSA-N 0.000 description 2
- ZPVFWPFBNIEHGJ-UHFFFAOYSA-N 2-octanone Chemical compound CCCCCCC(C)=O ZPVFWPFBNIEHGJ-UHFFFAOYSA-N 0.000 description 2
- XJLDYKIEURAVBW-UHFFFAOYSA-N 3-decanone Chemical compound CCCCCCCC(=O)CC XJLDYKIEURAVBW-UHFFFAOYSA-N 0.000 description 2
- PFCHFHIRKBAQGU-UHFFFAOYSA-N 3-hexanone Chemical compound CCCC(=O)CC PFCHFHIRKBAQGU-UHFFFAOYSA-N 0.000 description 2
- RHLVCLIPMVJYKS-UHFFFAOYSA-N 3-octanone Chemical compound CCCCCC(=O)CC RHLVCLIPMVJYKS-UHFFFAOYSA-N 0.000 description 2
- UAXRSKYOUUJUOK-UHFFFAOYSA-N 3-oxo-1,2-dihydroindene-2-carboxylic acid Chemical compound C1=CC=C2C(=O)C(C(=O)O)CC2=C1 UAXRSKYOUUJUOK-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- KWOLFJPFCHCOCG-UHFFFAOYSA-N Acetophenone Chemical compound CC(=O)C1=CC=CC=C1 KWOLFJPFCHCOCG-UHFFFAOYSA-N 0.000 description 2
- IYTXKIXETAELAV-UHFFFAOYSA-N Aethyl-n-hexyl-keton Natural products CCCCCCC(=O)CC IYTXKIXETAELAV-UHFFFAOYSA-N 0.000 description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- CEZOKFFWBPTCIB-UHFFFAOYSA-N C1CC(=C(C1)OC(F)F)C(=O)OCC2=CC=CC=C2 Chemical compound C1CC(=C(C1)OC(F)F)C(=O)OCC2=CC=CC=C2 CEZOKFFWBPTCIB-UHFFFAOYSA-N 0.000 description 2
- XUSTYFNGEGWNDQ-UHFFFAOYSA-N CCC(C(F)F)C(=O)CC Chemical compound CCC(C(F)F)C(=O)CC XUSTYFNGEGWNDQ-UHFFFAOYSA-N 0.000 description 2
- NQRWNNKMHFWQBI-UHFFFAOYSA-N CCCC(C(F)F)C(=O)CC Chemical compound CCCC(C(F)F)C(=O)CC NQRWNNKMHFWQBI-UHFFFAOYSA-N 0.000 description 2
- UVTCBZXFGZRNFH-UHFFFAOYSA-N COC(=O)C1CC2=C(C1=O)C(=CC=C2)F Chemical compound COC(=O)C1CC2=C(C1=O)C(=CC=C2)F UVTCBZXFGZRNFH-UHFFFAOYSA-N 0.000 description 2
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical compound CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 description 2
- YNQLUTRBYVCPMQ-UHFFFAOYSA-N Ethylbenzene Chemical compound CCC1=CC=CC=C1 YNQLUTRBYVCPMQ-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- BZLVMXJERCGZMT-UHFFFAOYSA-N Methyl tert-butyl ether Chemical compound COC(C)(C)C BZLVMXJERCGZMT-UHFFFAOYSA-N 0.000 description 2
- MZRVEZGGRBJDDB-UHFFFAOYSA-N N-Butyllithium Chemical compound [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- LINDOXZENKYESA-UHFFFAOYSA-N TMG Natural products CNC(N)=NC LINDOXZENKYESA-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 125000002147 dimethylamino group Chemical group [H]C([H])([H])N(*)C([H])([H])[H] 0.000 description 2
- CATSNJVOTSVZJV-UHFFFAOYSA-N heptan-2-one Chemical compound CCCCCC(C)=O CATSNJVOTSVZJV-UHFFFAOYSA-N 0.000 description 2
- VKCYHJWLYTUGCC-UHFFFAOYSA-N nonan-2-one Chemical compound CCCCCCCC(C)=O VKCYHJWLYTUGCC-UHFFFAOYSA-N 0.000 description 2
- 150000007530 organic bases Chemical class 0.000 description 2
- XNLICIUVMPYHGG-UHFFFAOYSA-N pentan-2-one Chemical compound CCCC(C)=O XNLICIUVMPYHGG-UHFFFAOYSA-N 0.000 description 2
- FDPIMTJIUBPUKL-UHFFFAOYSA-N pentan-3-one Chemical compound CCC(=O)CC FDPIMTJIUBPUKL-UHFFFAOYSA-N 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- KRIOVPPHQSLHCZ-UHFFFAOYSA-N propiophenone Chemical compound CCC(=O)C1=CC=CC=C1 KRIOVPPHQSLHCZ-UHFFFAOYSA-N 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- PVNUIRUAPVSSOK-UHFFFAOYSA-N tert-butylimino(tripyrrolidin-1-yl)-$l^{5}-phosphane Chemical compound C1CCCN1P(N1CCCC1)(=NC(C)(C)C)N1CCCC1 PVNUIRUAPVSSOK-UHFFFAOYSA-N 0.000 description 2
- KYWIYKKSMDLRDC-UHFFFAOYSA-N undecan-2-one Chemical compound CCCCCCCCCC(C)=O KYWIYKKSMDLRDC-UHFFFAOYSA-N 0.000 description 2
- GETTZEONDQJALK-UHFFFAOYSA-N (trifluoromethyl)benzene Chemical compound FC(F)(F)C1=CC=CC=C1 GETTZEONDQJALK-UHFFFAOYSA-N 0.000 description 1
- KYVBNYUBXIEUFW-UHFFFAOYSA-N 1,1,3,3-tetramethylguanidine Chemical compound CN(C)C(=N)N(C)C KYVBNYUBXIEUFW-UHFFFAOYSA-N 0.000 description 1
- ZVMWLOILGFNRGY-UHFFFAOYSA-N 1,1-difluoro-4,4-dimethylpentan-2-one Chemical compound CC(C)(C)CC(=O)C(F)F ZVMWLOILGFNRGY-UHFFFAOYSA-N 0.000 description 1
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical compound ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 description 1
- JALGCHVDKVHJID-UHFFFAOYSA-N 2-(1-phenylbutylidene)propanedinitrile Chemical compound CCCC(=C(C#N)C#N)C1=CC=CC=C1 JALGCHVDKVHJID-UHFFFAOYSA-N 0.000 description 1
- LASRYGWUQDOKIF-UHFFFAOYSA-N 2-(2,3-dihydrochromen-4-ylidene)propanedinitrile Chemical compound C1=CC=C2C(=C(C#N)C#N)CCOC2=C1 LASRYGWUQDOKIF-UHFFFAOYSA-N 0.000 description 1
- SHUJYVMRFRCEBN-UHFFFAOYSA-N 2-(2,3-dihydrothiochromen-4-ylidene)propanedinitrile Chemical compound C1=CC=C2C(=C(C#N)C#N)CCSC2=C1 SHUJYVMRFRCEBN-UHFFFAOYSA-N 0.000 description 1
- HPMIASHGJFPNQU-UHFFFAOYSA-N 2-(2-methyl-3,4-dihydro-2H-naphthalen-1-ylidene)propanedinitrile Chemical compound CC1CCc2ccccc2C1=C(C#N)C#N HPMIASHGJFPNQU-UHFFFAOYSA-N 0.000 description 1
- GNGPAHQFSYSOEN-UHFFFAOYSA-N 2-(2-phenylpropylidene)propanedinitrile Chemical compound N#CC(C#N)=CC(C)C1=CC=CC=C1 GNGPAHQFSYSOEN-UHFFFAOYSA-N 0.000 description 1
- JCYWFLAMCYFGLM-UHFFFAOYSA-N 2-(3,3-difluoro-2-methyl-2-phenylpropylidene)propanedinitrile Chemical compound CC(C=C(C#N)C#N)(C(F)F)c1ccccc1 JCYWFLAMCYFGLM-UHFFFAOYSA-N 0.000 description 1
- MKZKYYSNSZRCJA-UHFFFAOYSA-N 2-(5-methoxy-3,4-dihydro-2H-naphthalen-1-ylidene)propanedinitrile Chemical compound N#CC(C#N)=C1CCCC2=C1C=CC=C2OC MKZKYYSNSZRCJA-UHFFFAOYSA-N 0.000 description 1
- VLIQAYMQCGCZLK-UHFFFAOYSA-N 2-(6,7,8,9-tetrahydrobenzo[7]annulen-5-ylidene)propanedinitrile Chemical compound N#CC(C#N)=C1CCCCC2=CC=CC=C12 VLIQAYMQCGCZLK-UHFFFAOYSA-N 0.000 description 1
- NBPXHYDWCZDDJG-UHFFFAOYSA-N 2-(6,7-dimethoxy-3,4-dihydro-2H-naphthalen-1-ylidene)propanedinitrile Chemical compound C1CCC(=C(C#N)C#N)C2=C1C=C(OC)C(OC)=C2 NBPXHYDWCZDDJG-UHFFFAOYSA-N 0.000 description 1
- WVOJASVMOHTBKH-UHFFFAOYSA-N 2-(6-methoxy-3,4-dihydro-2h-naphthalen-1-ylidene)propanedinitrile Chemical compound N#CC(C#N)=C1CCCC2=CC(OC)=CC=C21 WVOJASVMOHTBKH-UHFFFAOYSA-N 0.000 description 1
- PESPVFOFMNLFLA-UHFFFAOYSA-N 2-(7-methoxy-3,4-dihydro-2h-naphthalen-1-ylidene)propanedinitrile Chemical compound C1CCC(=C(C#N)C#N)C2=CC(OC)=CC=C21 PESPVFOFMNLFLA-UHFFFAOYSA-N 0.000 description 1
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 1
- PHHYKSAKEFGMGL-UHFFFAOYSA-N 2-[1-(4-bromophenyl)ethylidene]propanedinitrile Chemical compound N#CC(C#N)=C(C)C1=CC=C(Br)C=C1 PHHYKSAKEFGMGL-UHFFFAOYSA-N 0.000 description 1
- PIOLKAANXWMZOY-UHFFFAOYSA-N 2-[1-(4-bromophenyl)propylidene]propanedinitrile Chemical compound CCC(=C(C#N)C#N)c1ccc(Br)cc1 PIOLKAANXWMZOY-UHFFFAOYSA-N 0.000 description 1
- FHABJCOKDOJSHP-UHFFFAOYSA-N 2-[1-(4-methoxyphenyl)ethylidene]propanedinitrile Chemical compound COC1=CC=C(C(C)=C(C#N)C#N)C=C1 FHABJCOKDOJSHP-UHFFFAOYSA-N 0.000 description 1
- RQUYDDVAPIYCSV-UHFFFAOYSA-N 2-[1-(4-methoxyphenyl)propylidene]propanedinitrile Chemical compound N#CC(C#N)=C(CC)C1=CC=C(OC)C=C1 RQUYDDVAPIYCSV-UHFFFAOYSA-N 0.000 description 1
- DGKGKMSMCQDYOD-UHFFFAOYSA-N 2-[1-(6-methoxynaphthalen-2-yl)ethylidene]propanedinitrile Chemical compound C1=C(C(C)=C(C#N)C#N)C=CC2=CC(OC)=CC=C21 DGKGKMSMCQDYOD-UHFFFAOYSA-N 0.000 description 1
- ZHLRURVHNMMSQN-UHFFFAOYSA-N 2-[2-(difluoromethyl)cyclohexylidene]propanedinitrile Chemical compound FC(F)C1CCCCC1=C(C#N)C#N ZHLRURVHNMMSQN-UHFFFAOYSA-N 0.000 description 1
- LFIASOWXJLMZNB-UHFFFAOYSA-N 2-cyclohexylidenepropanedinitrile Chemical compound N#CC(C#N)=C1CCCCC1 LFIASOWXJLMZNB-UHFFFAOYSA-N 0.000 description 1
- HSGGETNTHPPMSP-UHFFFAOYSA-N 2-methylpropyl 3-oxo-1,2-dihydroindene-2-carboxylate Chemical compound CC(C)COC(=O)C1Cc2ccccc2C1=O HSGGETNTHPPMSP-UHFFFAOYSA-N 0.000 description 1
- VSCBATMPTLKTOV-UHFFFAOYSA-N 2-tert-butylimino-n,n-diethyl-1,3-dimethyl-1,3,2$l^{5}-diazaphosphinan-2-amine Chemical compound CCN(CC)P1(=NC(C)(C)C)N(C)CCCN1C VSCBATMPTLKTOV-UHFFFAOYSA-N 0.000 description 1
- FVKFHMNJTHKMRX-UHFFFAOYSA-N 3,4,6,7,8,9-hexahydro-2H-pyrimido[1,2-a]pyrimidine Chemical compound C1CCN2CCCNC2=N1 FVKFHMNJTHKMRX-UHFFFAOYSA-N 0.000 description 1
- JROKUZPPDRUMDV-UHFFFAOYSA-N 3-(difluoromethyl)heptan-2-one Chemical compound CCCCC(C(F)F)C(C)=O JROKUZPPDRUMDV-UHFFFAOYSA-N 0.000 description 1
- REUUBMQVMAEFKB-UHFFFAOYSA-N 4,4-difluorobutan-2-one Chemical compound CC(=O)CC(F)F REUUBMQVMAEFKB-UHFFFAOYSA-N 0.000 description 1
- 229960000549 4-dimethylaminophenol Drugs 0.000 description 1
- JQQYICNXYXWZIH-UHFFFAOYSA-N 5-methyl-3-phenylhex-2-enenitrile Chemical compound CC(C)CC(=CC#N)C1=CC=CC=C1 JQQYICNXYXWZIH-UHFFFAOYSA-N 0.000 description 1
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- 239000003814 drug Substances 0.000 description 1
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- OCFQSMPXPAIYMI-UHFFFAOYSA-N ethyl 2-(difluoromethyl)-3-oxo-1H-indene-2-carboxylate Chemical compound CCOC(=O)C1(Cc2ccccc2C1=O)C(F)F OCFQSMPXPAIYMI-UHFFFAOYSA-N 0.000 description 1
- CRUSDTXUTKVYLW-UHFFFAOYSA-N ethyl 3-oxo-1,2-dihydroindene-2-carboxylate Chemical compound C1=CC=C2C(=O)C(C(=O)OCC)CC2=C1 CRUSDTXUTKVYLW-UHFFFAOYSA-N 0.000 description 1
- JTLCXIXIHDFFCF-UHFFFAOYSA-N ethyl 4,5-dimethoxy-3-oxo-1,2-dihydroindene-2-carboxylate Chemical compound C1=C(OC)C(OC)=C2C(=O)C(C(=O)OCC)CC2=C1 JTLCXIXIHDFFCF-UHFFFAOYSA-N 0.000 description 1
- UVVQVEOJIJPVTD-UHFFFAOYSA-N ethyl 4,6-dimethoxy-3-oxo-1,2-dihydroindene-2-carboxylate Chemical compound COC1=CC(OC)=C2C(=O)C(C(=O)OCC)CC2=C1 UVVQVEOJIJPVTD-UHFFFAOYSA-N 0.000 description 1
- AZZAWEGBMPMWLJ-UHFFFAOYSA-N ethyl 4-bromo-3-oxo-1,2-dihydroindene-2-carboxylate Chemical compound CCOC(=O)C1Cc2cccc(Br)c2C1=O AZZAWEGBMPMWLJ-UHFFFAOYSA-N 0.000 description 1
- MAGMTBONJQQJCI-UHFFFAOYSA-N ethyl 4-chloro-3-oxo-1,2-dihydroindene-2-carboxylate Chemical compound CCOC(=O)C1Cc2cccc(Cl)c2C1=O MAGMTBONJQQJCI-UHFFFAOYSA-N 0.000 description 1
- OKINXUCIWVJKLQ-UHFFFAOYSA-N ethyl 4-fluoro-3-oxo-1,2-dihydroindene-2-carboxylate Chemical compound CCOC(=O)C1Cc2cccc(F)c2C1=O OKINXUCIWVJKLQ-UHFFFAOYSA-N 0.000 description 1
- RMBAJIKFSGRDQJ-UHFFFAOYSA-N ethyl 4-methoxy-3-oxo-1,2-dihydroindene-2-carboxylate Chemical compound C1=CC(OC)=C2C(=O)C(C(=O)OCC)CC2=C1 RMBAJIKFSGRDQJ-UHFFFAOYSA-N 0.000 description 1
- VHIWRLRDYQGCCD-UHFFFAOYSA-N ethyl 4-methyl-3-oxo-1,2-dihydroindene-2-carboxylate Chemical compound C1=CC(C)=C2C(=O)C(C(=O)OCC)CC2=C1 VHIWRLRDYQGCCD-UHFFFAOYSA-N 0.000 description 1
- XJDKSNMQKWKNFI-UHFFFAOYSA-N ethyl 5-bromo-3-oxo-1,2-dihydroindene-2-carboxylate Chemical compound CCOC(=O)C1Cc2ccc(Br)cc2C1=O XJDKSNMQKWKNFI-UHFFFAOYSA-N 0.000 description 1
- UERANARBMAVCPO-UHFFFAOYSA-N ethyl 5-chloro-3-oxo-1,2-dihydroindene-2-carboxylate Chemical compound C1=C(Cl)C=C2C(=O)C(C(=O)OCC)CC2=C1 UERANARBMAVCPO-UHFFFAOYSA-N 0.000 description 1
- ARAFWUJVRWOXLW-UHFFFAOYSA-N ethyl 5-fluoro-3-oxo-1,2-dihydroindene-2-carboxylate Chemical compound C1=C(F)C=C2C(=O)C(C(=O)OCC)CC2=C1 ARAFWUJVRWOXLW-UHFFFAOYSA-N 0.000 description 1
- YBHPNCXDWWQQSG-UHFFFAOYSA-N ethyl 5-methoxy-3-oxo-1,2-dihydroindene-2-carboxylate Chemical compound C1=C(OC)C=C2C(=O)C(C(=O)OCC)CC2=C1 YBHPNCXDWWQQSG-UHFFFAOYSA-N 0.000 description 1
- NGNZNXPCCYNWNH-UHFFFAOYSA-N ethyl 5-methyl-3-oxo-1,2-dihydroindene-2-carboxylate Chemical compound C1=C(C)C=C2C(=O)C(C(=O)OCC)CC2=C1 NGNZNXPCCYNWNH-UHFFFAOYSA-N 0.000 description 1
- BKSCKJWCFSGKQN-UHFFFAOYSA-N ethyl 6-chloro-3-oxo-1,2-dihydroindene-2-carboxylate Chemical compound ClC1=CC=C2C(=O)C(C(=O)OCC)CC2=C1 BKSCKJWCFSGKQN-UHFFFAOYSA-N 0.000 description 1
- JVCVLSZRWNQMSW-UHFFFAOYSA-N ethyl 6-fluoro-3-oxo-1,2-dihydroindene-2-carboxylate Chemical compound FC1=CC=C2C(=O)C(C(=O)OCC)CC2=C1 JVCVLSZRWNQMSW-UHFFFAOYSA-N 0.000 description 1
- DIDCQPMOTAZCPR-UHFFFAOYSA-N ethyl 6-methoxy-3-oxo-1,2-dihydroindene-2-carboxylate Chemical compound COC1=CC=C2C(=O)C(C(=O)OCC)CC2=C1 DIDCQPMOTAZCPR-UHFFFAOYSA-N 0.000 description 1
- FCKHWNPXFJIJHW-UHFFFAOYSA-N ethyl 6-methyl-3-oxo-1,2-dihydroindene-2-carboxylate Chemical compound CC1=CC=C2C(=O)C(C(=O)OCC)CC2=C1 FCKHWNPXFJIJHW-UHFFFAOYSA-N 0.000 description 1
- NXMRMHFUBBKVMY-UHFFFAOYSA-N ethyl 7-bromo-3-oxo-1,2-dihydroindene-2-carboxylate Chemical compound CCOC(=O)C1Cc2c(cccc2Br)C1=O NXMRMHFUBBKVMY-UHFFFAOYSA-N 0.000 description 1
- JJIYEFIBLMLMPF-UHFFFAOYSA-N ethyl 7-chloro-3-oxo-1,2-dihydroindene-2-carboxylate Chemical compound CCOC(=O)C1CC2=C(C1=O)C=CC=C2Cl JJIYEFIBLMLMPF-UHFFFAOYSA-N 0.000 description 1
- QTBMICNMDIURLF-UHFFFAOYSA-N ethyl 7-fluoro-3-oxo-1,2-dihydroindene-2-carboxylate Chemical compound O=C1C(C(=O)OCC)CC2=C1C=CC=C2F QTBMICNMDIURLF-UHFFFAOYSA-N 0.000 description 1
- LGQIMAOSKIDQQY-UHFFFAOYSA-N ethyl 7-methoxy-3-oxo-1,2-dihydroindene-2-carboxylate Chemical compound O=C1C(C(=O)OCC)CC2=C1C=CC=C2OC LGQIMAOSKIDQQY-UHFFFAOYSA-N 0.000 description 1
- XYIBRDXRRQCHLP-UHFFFAOYSA-N ethyl acetoacetate Chemical compound CCOC(=O)CC(C)=O XYIBRDXRRQCHLP-UHFFFAOYSA-N 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- WNFZTJABLXIHAD-UHFFFAOYSA-N methyl 4,5-dimethoxy-3-oxo-1,2-dihydroindene-2-carboxylate Chemical compound C1=C(OC)C(OC)=C2C(=O)C(C(=O)OC)CC2=C1 WNFZTJABLXIHAD-UHFFFAOYSA-N 0.000 description 1
- MVQSNGDHCXPYDS-UHFFFAOYSA-N methyl 4,6-dimethoxy-3-oxo-1,2-dihydroindene-2-carboxylate Chemical compound COC1=CC(OC)=C2C(=O)C(C(=O)OC)CC2=C1 MVQSNGDHCXPYDS-UHFFFAOYSA-N 0.000 description 1
- HHPWBKHHXIDMEX-UHFFFAOYSA-N methyl 4-chloro-3-oxo-1,2-dihydroindene-2-carboxylate Chemical compound ClC=1C=CC=C2CC(C(C=12)=O)C(=O)OC HHPWBKHHXIDMEX-UHFFFAOYSA-N 0.000 description 1
- GCAZSPNHQCLECL-UHFFFAOYSA-N methyl 5,6-dimethoxy-3-oxo-1,2-dihydroindene-2-carboxylate Chemical compound COC1=C(OC)C=C2C(=O)C(C(=O)OC)CC2=C1 GCAZSPNHQCLECL-UHFFFAOYSA-N 0.000 description 1
- MOZRBTVCCVPVHI-UHFFFAOYSA-N methyl 5,7-dimethoxy-3-oxo-1,2-dihydroindene-2-carboxylate Chemical compound O=C1C(C(=O)OC)CC2=C1C=C(OC)C=C2OC MOZRBTVCCVPVHI-UHFFFAOYSA-N 0.000 description 1
- CSWZZDZHRQGYDN-UHFFFAOYSA-N methyl 5-bromo-2-(difluoromethyl)-3-oxo-1H-indene-2-carboxylate Chemical compound COC(=O)C1(CC2=C(C1=O)C=C(C=C2)Br)C(F)F CSWZZDZHRQGYDN-UHFFFAOYSA-N 0.000 description 1
- HQVLQXSFYKRSER-UHFFFAOYSA-N methyl 5-bromo-3-oxo-1,2-dihydroindene-2-carboxylate Chemical compound C1=C(Br)C=C2C(=O)C(C(=O)OC)CC2=C1 HQVLQXSFYKRSER-UHFFFAOYSA-N 0.000 description 1
- JYZNMHIAHJFYJP-UHFFFAOYSA-N methyl 5-chloro-3-oxo-1,2-dihydroindene-2-carboxylate Chemical compound C1=C(Cl)C=C2C(=O)C(C(=O)OC)CC2=C1 JYZNMHIAHJFYJP-UHFFFAOYSA-N 0.000 description 1
- VVUFIMBYNJVAOM-UHFFFAOYSA-N methyl 5-fluoro-3-oxo-1,2-dihydroindene-2-carboxylate Chemical compound C1=C(F)C=C2C(=O)C(C(=O)OC)CC2=C1 VVUFIMBYNJVAOM-UHFFFAOYSA-N 0.000 description 1
- WRMZEXPQHVTWJA-UHFFFAOYSA-N methyl 5-methoxy-3-oxo-1,2-dihydroindene-2-carboxylate Chemical compound C1=C(OC)C=C2C(=O)C(C(=O)OC)CC2=C1 WRMZEXPQHVTWJA-UHFFFAOYSA-N 0.000 description 1
- JSODNIIBTFVQMN-UHFFFAOYSA-N methyl 5-methyl-3-oxo-1,2-dihydroindene-2-carboxylate Chemical compound C1=C(C)C=C2C(=O)C(C(=O)OC)CC2=C1 JSODNIIBTFVQMN-UHFFFAOYSA-N 0.000 description 1
- ARCSMCYXHAPEKB-UHFFFAOYSA-N methyl 6,7-dimethoxy-3-oxo-1,2-dihydroindene-2-carboxylate Chemical compound O=C1C(C(=O)OC)CC2=C1C=CC(OC)=C2OC ARCSMCYXHAPEKB-UHFFFAOYSA-N 0.000 description 1
- HJYFQVWOJMRKDU-UHFFFAOYSA-N methyl 6-bromo-3-oxo-1,2-dihydroindene-2-carboxylate Chemical compound BrC1=CC=C2C(=O)C(C(=O)OC)CC2=C1 HJYFQVWOJMRKDU-UHFFFAOYSA-N 0.000 description 1
- BCWVNKVGJNKXAX-UHFFFAOYSA-N methyl 6-fluoro-3-oxo-1,2-dihydroindene-2-carboxylate Chemical compound FC1=CC=C2C(=O)C(C(=O)OC)CC2=C1 BCWVNKVGJNKXAX-UHFFFAOYSA-N 0.000 description 1
- QWLDPANGSGQCFP-UHFFFAOYSA-N methyl 6-methoxy-3-oxo-1,2-dihydroindene-2-carboxylate Chemical compound COC1=CC=C2C(=O)C(C(=O)OC)CC2=C1 QWLDPANGSGQCFP-UHFFFAOYSA-N 0.000 description 1
- AIBGSRXWMDGIAM-UHFFFAOYSA-N methyl 7-bromo-3-oxo-1,2-dihydroindene-2-carboxylate Chemical compound O=C1C(C(=O)OC)CC2=C1C=CC=C2Br AIBGSRXWMDGIAM-UHFFFAOYSA-N 0.000 description 1
- KAIGXHHNFDTKEW-UHFFFAOYSA-N methyl 7-chloro-3-oxo-1,2-dihydroindene-2-carboxylate Chemical compound O=C1C(C(=O)OC)CC2=C1C=CC=C2Cl KAIGXHHNFDTKEW-UHFFFAOYSA-N 0.000 description 1
- KKCMWXMRNWXGBN-UHFFFAOYSA-N methyl 7-fluoro-3-oxo-1,2-dihydroindene-2-carboxylate Chemical compound O=C1C(C(=O)OC)CC2=C1C=CC=C2F KKCMWXMRNWXGBN-UHFFFAOYSA-N 0.000 description 1
- QIPCFWIEKYXBNI-UHFFFAOYSA-N methyl 7-methoxy-3-oxo-1,2-dihydroindene-2-carboxylate Chemical compound O=C1C(C(=O)OC)CC2=C1C=CC=C2OC QIPCFWIEKYXBNI-UHFFFAOYSA-N 0.000 description 1
- ANAXUBZSZJVHPT-UHFFFAOYSA-N methyl 7-methyl-3-oxo-1,2-dihydroindene-2-carboxylate Chemical compound O=C1C(C(=O)OC)CC2=C1C=CC=C2C ANAXUBZSZJVHPT-UHFFFAOYSA-N 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 125000005328 phosphinyl group Chemical group [PH2](=O)* 0.000 description 1
- 125000004437 phosphorous atom Chemical group 0.000 description 1
- PJGSXYOJTGTZAV-UHFFFAOYSA-N pinacolone Chemical compound CC(=O)C(C)(C)C PJGSXYOJTGTZAV-UHFFFAOYSA-N 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- LPNYRYFBWFDTMA-UHFFFAOYSA-N potassium tert-butoxide Chemical compound [K+].CC(C)(C)[O-] LPNYRYFBWFDTMA-UHFFFAOYSA-N 0.000 description 1
- DIQPPNKMFZVQEG-UHFFFAOYSA-N propan-2-yl 3-oxo-1,2-dihydroindene-2-carboxylate Chemical compound C1=CC=C2C(=O)C(C(=O)OC(C)C)CC2=C1 DIQPPNKMFZVQEG-UHFFFAOYSA-N 0.000 description 1
- GVIIRWAJDFKJMJ-UHFFFAOYSA-N propan-2-yl 3-oxobutanoate Chemical compound CC(C)OC(=O)CC(C)=O GVIIRWAJDFKJMJ-UHFFFAOYSA-N 0.000 description 1
- JZXZOFHKXFIRCC-UHFFFAOYSA-N propan-2-yl 6-chloro-3-oxo-1,2-dihydroindene-2-carboxylate Chemical compound CC(C)OC(=O)C1CC2=C(C1=O)C=CC(=C2)Cl JZXZOFHKXFIRCC-UHFFFAOYSA-N 0.000 description 1
- YXKSWYQUJDSETG-UHFFFAOYSA-N propan-2-yl 7-methoxy-3-oxo-1,2-dihydroindene-2-carboxylate Chemical compound C(C)(C)OC(=O)C1C(C2=CC=CC(=C2C1)OC)=O YXKSWYQUJDSETG-UHFFFAOYSA-N 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- FVSKHRXBFJPNKK-UHFFFAOYSA-N propionitrile Chemical compound CCC#N FVSKHRXBFJPNKK-UHFFFAOYSA-N 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 150000003462 sulfoxides Chemical class 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 125000004434 sulfur atom Chemical group 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 239000004032 superbase Substances 0.000 description 1
- 150000007525 superbases Chemical class 0.000 description 1
- PYNWXKFCYQENRW-UHFFFAOYSA-N tert-butyl 3-oxo-1,2-dihydroindene-2-carboxylate Chemical compound C1=CC=C2C(=O)C(C(=O)OC(C)(C)C)CC2=C1 PYNWXKFCYQENRW-UHFFFAOYSA-N 0.000 description 1
- JKUYRAMKJLMYLO-UHFFFAOYSA-N tert-butyl 3-oxobutanoate Chemical compound CC(=O)CC(=O)OC(C)(C)C JKUYRAMKJLMYLO-UHFFFAOYSA-N 0.000 description 1
- KQRPLYDWRHUOLK-UHFFFAOYSA-N tert-butyl 5,6-dimethoxy-3-oxo-1,2-dihydroindene-2-carboxylate Chemical compound C1=C(OC)C(OC)=CC2=C1C(=O)C(C(=O)OC(C)(C)C)C2 KQRPLYDWRHUOLK-UHFFFAOYSA-N 0.000 description 1
- ZUJFLDJRRLMHFQ-UHFFFAOYSA-N tert-butyl 6-bromo-3-oxo-1,2-dihydroindene-2-carboxylate Chemical compound BrC1=CC=C2C(=O)C(C(=O)OC(C)(C)C)CC2=C1 ZUJFLDJRRLMHFQ-UHFFFAOYSA-N 0.000 description 1
- RLLGFTKXFBMOEO-UHFFFAOYSA-N tert-butyl 6-methoxy-3-oxo-1,2-dihydroindene-2-carboxylate Chemical compound COC1=CC=C2C(=O)C(C(=O)OC(C)(C)C)CC2=C1 RLLGFTKXFBMOEO-UHFFFAOYSA-N 0.000 description 1
- PZDAGUTVHOXAIK-UHFFFAOYSA-N tert-butyl 6-methyl-3-oxo-1,2-dihydroindene-2-carboxylate Chemical compound Cc1ccc2C(=O)C(Cc2c1)C(=O)OC(C)(C)C PZDAGUTVHOXAIK-UHFFFAOYSA-N 0.000 description 1
- GZFAJXGUEOZABJ-UHFFFAOYSA-N tert-butyl 7-methyl-3-oxo-1,2-dihydroindene-2-carboxylate Chemical compound CC1=C2CC(C(=O)C2=CC=C1)C(=O)OC(C)(C)C GZFAJXGUEOZABJ-UHFFFAOYSA-N 0.000 description 1
- CXWXQJXEFPUFDZ-UHFFFAOYSA-N tetralin Chemical compound C1=CC=C2CCCCC2=C1 CXWXQJXEFPUFDZ-UHFFFAOYSA-N 0.000 description 1
- ZDIXOWNDGFVYNK-UHFFFAOYSA-N tridecan-3-one Chemical compound CCCCCCCCCCC(=O)CC ZDIXOWNDGFVYNK-UHFFFAOYSA-N 0.000 description 1
- ITMCEJHCFYSIIV-UHFFFAOYSA-N triflic acid Chemical class OS(=O)(=O)C(F)(F)F ITMCEJHCFYSIIV-UHFFFAOYSA-N 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
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- Heterocyclic Compounds Containing Sulfur Atoms (AREA)
- Pyrane Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
本発明は、親電子的ジフルオロメチル化剤を用いたジフルオロメチル基含有化合物の製造方法に関する。ジフルオロメチル基含有化合物は医・農薬の製造中間体として有用な化合物である。 The present invention relates to a method for producing a difluoromethyl group-containing compound using an electrophilic difluoromethylating agent. Difluoromethyl group-containing compounds are useful compounds as intermediates for the production of medicines and agricultural chemicals.
従来より、親電子的ジフルオロメチル化剤を用いたジフルオロメチル基の導入方法は、例えば、フェニル(2,3,4,5−テトラメチルフェニル)ジフルオロメチルチオフェニウム テトラフルオロボラートを用いる方法(非特許文献1)、フェニル(クロロジフルオロメチル)スルホンを用いる方法(非特許文献2)、1−フェニルスルホニルジフルオロメチル−3,3−ジメチル−1,2−ベンゾヨードキソールを用いる方法(非特許文献3)、[(オキシド)フェニル(ジフルオロメチル)−λ4-スルファニリデン]−p−トルエンスルホニルアンモニウム テトラフルオロボラートを用いる方法(非特許文献4)、[(オキシド)フェニル(ジフルオロメチル)−λ4-スルファニリデン]ジメチルアンモニウム テトラフルオロボラートを用いる方法(非特許文献5)等が知られている。 Conventionally, a method of introducing a difluoromethyl group using an electrophilic difluoromethylating agent is, for example, a method using phenyl (2,3,4,5-tetramethylphenyl) difluoromethylthiophenium tetrafluoroborate (non- Patent document 1), method using phenyl (chlorodifluoromethyl) sulfone (non-patent document 2), method using 1-phenylsulfonyldifluoromethyl-3,3-dimethyl-1,2-benzoiodoxol (non-patent document) 3), [(oxide) phenyl (difluoromethyl) -λ 4 -sulfanilidene] -p-toluenesulfonylammonium tetrafluoroborate (non-patent document 4), [(oxide) phenyl (difluoromethyl) -λ 4 -Sulfanylidene] dimethylammonium tetrafluorobora A method using a gate (Non-Patent Document 5) is known.
従来の非特許文献1〜5に記載の方法は、炭素原子以外の、酸素原子、リン原子、窒素原子及びイオウ原子上にジフルオロメチル基を導入する方法であって、本発明の炭素原子上にジフルオロメチル基を導入する方法は知られていない。 The conventional methods described in Non-Patent Documents 1 to 5 are methods for introducing a difluoromethyl group onto an oxygen atom, a phosphorus atom, a nitrogen atom, and a sulfur atom other than a carbon atom, and on the carbon atom of the present invention. There is no known method for introducing a difluoromethyl group.
本発明者は、炭素原子上に親電子的にジフルオロメチル基を導入する方法について、鋭意検討した結果、フェニル(2,3,4,5−テトラメチルフェニル)ブロモジフルオロメチルチオフェニウムのテトラフルオロボラート塩又はトリフルオロメタンスルホナート塩を用い、塩基存在下、反応させることにより炭素原子上に親電子的にジフルオロメチル基を導入可能であることを見出し、本発明を完成させるに至った。 As a result of intensive studies on a method for introducing a difluoromethyl group electrophilically onto a carbon atom, the present inventor has found that tetra (fluoroborate) of phenyl (2,3,4,5-tetramethylphenyl) bromodifluoromethylthiophenium. The present inventors have found that a difluoromethyl group can be introduced electrophilically onto a carbon atom by reacting in the presence of a base using a sulfate salt or a trifluoromethanesulfonate salt, and the present invention has been completed.
すなわち、本発明は、一般式(1) That is, the present invention relates to the general formula (1)
[式中R1は水素原子、メチル基、エチル基、炭素数3〜10の直鎖、分岐若しくは環式のアルキル基、メトキシカルボニル基、エトキシカルボニル基、n−プロポキシカルボニル基、iso−プロポキシカルボニル基、tert−ブトキシカルボニル基、フェノキシカルボニル基、ベンジルオキシカルボニル基又はアリルオキシカルボニル基を示し、R2は水素原子、メチル基又はエチル基を示し、R3は水素原子、メチル基、エチル基、n−プロピル基、iso−プロピル基又は一般式(2) [Wherein R 1 represents a hydrogen atom, a methyl group, an ethyl group, a linear, branched or cyclic alkyl group having 3 to 10 carbon atoms, a methoxycarbonyl group, an ethoxycarbonyl group, an n-propoxycarbonyl group, an iso-propoxycarbonyl group. Group, tert-butoxycarbonyl group, phenoxycarbonyl group, benzyloxycarbonyl group or allyloxycarbonyl group, R 2 represents a hydrogen atom, methyl group or ethyl group, R 3 represents a hydrogen atom, methyl group, ethyl group, n-propyl group, iso-propyl group or general formula (2)
(式中、R4、R5は各々独立して、水素原子、メチル基、エチル基を示し、R6は水素原子、メチル基、エチル基、n−プロピル基、iso−プロピル基、水酸基、アミノ基、チオール基を示し、R4とR5は縮環して芳香環を形成しても良く、又R5とR6も縮環して芳香環を形成しても良い)
を示し、式中、R2とR6は縮環して4〜8員環の環構造を形成しても良く、Aは酸素原子又はマロノニトリル基を示し、R1、R2及びR3が全て水素原子であることはない]
で表されるカルボニル化合物またはマロノニトリル誘導体を、塩基存在下、フェニル(2,3,4,5−テトラメチルフェニル)ブロモジフルオロメチルチオフェニウム テトラフルオロボラート、又はフェニル(2,3,4,5−テトラメチルフェニル)ブロモジフルオロメチルチオフェニウム トリフルオロメタンスルホナートを反応させることを特徴とする一般式(3)
(In the formula, R 4 and R 5 each independently represent a hydrogen atom, a methyl group or an ethyl group, and R 6 represents a hydrogen atom, a methyl group, an ethyl group, an n-propyl group, an iso-propyl group, a hydroxyl group, An amino group or a thiol group, R 4 and R 5 may be condensed to form an aromatic ring, or R 5 and R 6 may be condensed to form an aromatic ring)
Wherein R 2 and R 6 may be condensed to form a 4- to 8-membered ring structure, A represents an oxygen atom or a malononitrile group, and R 1 , R 2 and R 3 are Not all hydrogen atoms]
In the presence of a base, phenyl (2,3,4,5-tetramethylphenyl) bromodifluoromethylthiophenium tetrafluoroborate or phenyl (2,3,4,5- Tetramethylphenyl) bromodifluoromethylthiophenium General formula (3) characterized by reacting with trifluoromethanesulfonate
(式中、R1、R2、R3及びAは前記に同じ)
で表されるジフルオロメチル基含有化合物の製造方法
を提供するものである。
(Wherein R 1 , R 2 , R 3 and A are the same as above)
The manufacturing method of the difluoromethyl group containing compound represented by these is provided.
本発明により、炭素原子上に、ジフルオロメチル基の導入が可能となり、医農薬の合成中間体として有用な、様々なジフルオロメチル基含有化合物の製造が可能となった。 According to the present invention, a difluoromethyl group can be introduced onto a carbon atom, and various difluoromethyl group-containing compounds useful as synthetic intermediates for medical and agricultural chemicals can be produced.
以下、本発明を詳細に説明する。 Hereinafter, the present invention will be described in detail.
本発明の一般式(1)で表されるカルボニル化合物としては、具体的に例えば、アセトン、2−ブタノン、2−ペンタノン、2−ヘキサノン、2−ヘプタノン、2−オクタノン、2−ノナノン、2−デカノン、2−ウンデカノン、2−ドデカノン、3−ペンタノン、3−ヘキサノン、3−ヘプタノン、3−ヘキサノン、3−ヘプタノン、3−オクタノン、3−ノナノン、3−デカノン、3−ウンデカノン、3−ドデカノン、3−トリデカノン、3,3−ジメチル−2−ブタノン、アセトフェノン、1−フェニルプロパン−1−オン、メチル 3−オキソブチラート、エチル 3−オキソブチラート、 iso−プロピル 3−オキソブチラート、tert−ブチル 3−オキソブチラート、アリル 3−オキソブチラート、メチル 1−オキソ−2−インダンカルボキシラート、エチル 1−オキソ−2−インダンカルボキシラート、n−プロピル 1−オキソ−2−インダンカルボキシラート、iso−プロピル 1−オキソ−2−インダンカルボキシラート、n−ブチル 1−オキソ−2−インダンカルボキシラート、iso−ブチル 1−オキソ−2−インダンカルボキシラート、tert−ブチル 1−オキソ−2−インダンカルボキシラート、アリル 1−オキソ−2−インダンカルボキシラート、ベンジル 1−オキソ−2−インダンカルボキシラート、メチル 4−メチル−1−オキソ−2−インダンカルボキシラート、エチル 4−メチル−1−オキソ−2−インダンカルボキシラート、n−プロピル 4−メチル−1−オキソ−2−インダンカルボキシラート、iso−プロピル 4−メチル−1−オキソ−2−インダンカルボキシラート、n−ブチル 4−メチル−1−オキソ−2−インダンカルボキシラート、iso−ブチル 4−メチル−1−オキソ−2−インダンカルボキシラート、tert−ブチル 4−メチル−1−オキソ−2−インダンカルボキシラート、アリル 4−メチル−1−オキソ−2−インダンカルボキシラート、ベンジル 4−メチル−1−オキソ−2−インダンカルボキシラート、メチル 5−メチル−1−オキソ−2−インダンカルボキシラート、エチル 5−メチル−1−オキソ−2−インダンカルボキシラート、n−プロピル 5−メチル−1−オキソ−2−インダンカルボキシラート、iso−プロピル 5−メチル−1−オキソ−2−インダンカルボキシラート、n−ブチル 5−メチル−1−オキソ−2−インダンカルボキシラート、iso−ブチル 5−メチル−1−オキソ−2−インダンカルボキシラート、tert−ブチル 5−メチル−1−オキソ−2−インダンカルボキシラート、アリル 5−メチル−1−オキソ−2−インダンカルボキシラート、ベンジル 5−メチル−1−オキソ−2−インダンカルボキシラート、メチル 6−メチル−1−オキソ−2−インダンカルボキシラート、エチル 6−メチル−1−オキソ−2−インダンカルボキシラート、n−プロピル 6−メチル−1−オキソ−2−インダンカルボキシラート、iso−プロピル 6−メチル−1−オキソ−2−インダンカルボキシラート、n−ブチル 6−メチル−1−オキソ−2−インダンカルボキシラート、iso−ブチル 6−メチル−1−オキソ−2−インダンカルボキシラート、tert−ブチル 6−メチル−1−オキソ−2−インダンカルボキシラート、アリル 6−メチル−1−オキソ−2−インダンカルボキシラート、ベンジル 6−メチル−1−オキソ−2−インダンカルボキシラート、メチル 7−メチル−1−オキソ−2−インダンカルボキシラート、エチル 7−メチル−1−オキソ−2−インダンカルボキシラート、n−プロピル 7−メチル−1−オキソ−2−インダンカルボキシラート、iso−プロピル 7−メチル−1−オキソ−2−インダンカルボキシラート、n−ブチル 7−メチル−1−オキソ−2−インダンカルボキシラート、iso−ブチル 7−メチル−1−オキソ−2−インダンカルボキシラート、tert−ブチル 7−メチル−1−オキソ−2−インダンカルボキシラート、アリル 7−メチル−1−オキソ−2−インダンカルボキシラート、ベンジル 7−メチル−1−オキソ−2−インダンカルボキシラート、メチル 4−メトキシ−1−オキソ−2−インダンカルボキシラート、エチル 4−メトキシ−1−オキソ−2−インダンカルボキシラート、n−プロピル 4−メトキシ−1−オキソ−2−インダンカルボキシラート、iso−プロピル 4−メトキシ−1−オキソ−2−インダンカルボキシラート、n−ブチル 4−メトキシ−1−オキソ−2−インダンカルボキシラート、iso−ブチル 4−メトキシ−1−オキソ−2−インダンカルボキシラート、tert−ブチル 4−メトキシ−1−オキソ−2−インダンカルボキシラート、アリル 4−メトキシ−1−オキソ−2−インダンカルボキシラート、ベンジル 4−メトキシ−1−オキソ−2−インダンカルボキシラート、メチル 5−メトキシ−1−オキソ−2−インダンカルボキシラート、エチル 5−メトキシ−1−オキソ−2−インダンカルボキシラート、n−プロピル 5−メトキシ−1−オキソ−2−インダンカルボキシラート、iso−プロピル 5−メトキシ−1−オキソ−2−インダンカルボキシラート、n−ブチル 5−メトキシ−1−オキソ−2−インダンカルボキシラート、iso−ブチル 5−メトキシ−1−オキソ−2−インダンカルボキシラート、tert−ブチル 5−メトキシ−1−オキソ−2−インダンカルボキシラート、アリル 5−メトキシ−1−オキソ−2−インダンカルボキシラート、ベンジル 5−メトキシ−1−オキソ−2−インダンカルボキシラート、メチル 6−メトキシ−1−オキソ−2−インダンカルボキシラート、エチル 6−メトキシ−1−オキソ−2−インダンカルボキシラート、n−プロピル 6−メトキシ−1−オキソ−2−インダンカルボキシラート、iso−プロピル 6−メトキシ−1−オキソ−2−インダンカルボキシラート、n−ブチル 6−メトキシ−1−オキソ−2−インダンカルボキシラート、iso−ブチル 6−メトキシ−1−オキソ−2−インダンカルボキシラート、tert−ブチル 6−メトキシ−1−オキソ−2−インダンカルボキシラート、アリル 6−メトキシ−1−オキソ−2−インダンカルボキシラート、ベンジル 6−メトキシ−1−オキソ−2−インダンカルボキシラート、メチル 7−メトキシ−1−オキソ−2−インダンカルボキシラート、エチル 7−メトキシ−1−オキソ−2−インダンカルボキシラート、n−プロピル 7−メトキシ−1−オキソ−2−インダンカルボキシラート、iso−プロピル 7−メトキシ−1−オキソ−2−インダンカルボキシラート、n−ブチル 7−メトキシ−1−オキソ−2−インダンカルボキシラート、iso−ブチル 7−メトキシ−1−オキソ−2−インダンカルボキシラート、tert−ブチル 7−メトキシ−1−オキソ−2−インダンカルボキシラート、アリル 7−メトキシ−1−オキソ−2−インダンカルボキシラート、ベンジル 7−メトキシ−1−オキソ−2−インダンカルボキシラート、メチル 4,5−ジメトキシ−1−オキソ−2−インダンカルボキシラート、エチル 4,5−ジメトキシ−1−オキソ−2−インダンカルボキシラート、n−プロピル 4,5−ジメトキシ−1−オキソ−2−インダンカルボキシラート、iso−プロピル 4,5−ジメトキシ−1−オキソ−2−インダンカルボキシラート、n−ブチル 4,5−ジメトキシ−1−オキソ−2−インダンカルボキシラート、iso−ブチル 4,5−ジメトキシ−1−オキソ−2−インダンカルボキシラート、tert−ブチル 4,5−ジメトキシ−1−オキソ−2−インダンカルボキシラート、アリル 4,5−ジメトキシ−1−オキソ−2−インダンカルボキシラート、ベンジル 4,5−ジメトキシ−1−オキソ−2−インダンカルボキシラート、メチル 5,6−ジメトキシ−1−オキソ−2−インダンカルボキシラート、エチル 5,6−ジメトキシ−1−オキソ−2−インダンカルボキシラート、n−プロピル 5,6−ジメトキシ−1−オキソ−2−インダンカルボキシラート、iso−プロピル 5,6−ジメトキシ−1−オキソ−2−インダンカルボキシラート、n−ブチル 5,6−ジメトキシ−1−オキソ−2−インダンカルボキシラート、iso−ブチル 5,6−ジメトキシ−1−オキソ−2−インダンカルボキシラート、tert−ブチル 5,6−ジメトキシ−1−オキソ−2−インダンカルボキシラート、アリル 5,6−ジメトキシ−1−オキソ−2−インダンカルボキシラート、ベンジル 5,6−ジメトキシ−1−オキソ−2−インダンカルボキシラート、メチル 6,7−ジメトキシ−1−オキソ−2−インダンカルボキシラート、エチル 6,7−ジメトキシ−1−オキソ−2−インダンカルボキシラート、n−プロピル 6,7−ジメトキシ−1−オキソ−2−インダンカルボキシラート、iso−プロピル 6,7−ジメトキシ−1−オキソ−2−インダンカルボキシラート、n−ブチル 6,7−ジメトキシ−1−オキソ−2−インダンカルボキシラート、iso−ブチル 6,7−ジメトキシ−1−オキソ−2−インダンカルボキシラート、tert−ブチル 6,7−ジメトキシ−1−オキソ−2−インダンカルボキシラート、アリル 6,7−ジメトキシ−1−オキソ−2−インダンカルボキシラート、ベンジル 6,7−ジメトキシ−1−オキソ−2−インダンカルボキシラート、メチル 4,6−ジメトキシ−1−オキソ−2−インダンカルボキシラート、エチル 4,6−ジメトキシ−1−オキソ−2−インダンカルボキシラート、n−プロピル 4,6−ジメトキシ−1−オキソ−2−インダンカルボキシラート、iso−プロピル 4,6−ジメトキシ−1−オキソ−2−インダンカルボキシラート、n−ブチル 4,6−ジメトキシ−1−オキソ−2−インダンカルボキシラート、iso−ブチル 4,6−ジメトキシ−1−オキソ−2−インダンカルボキシラート、tert−ブチル 4,6−ジメトキシ−1−オキソ−2−インダンカルボキシラート、アリル 4,6−ジメトキシ−1−オキソ−2−インダンカルボキシラート、ベンジル 4,6−ジメトキシ−1−オキソ−2−インダンカルボキシラート、メチル 5,7−ジメトキシ−1−オキソ−2−インダンカルボキシラート、エチル 5,7−ジメトキシ−1−オキソ−2−インダンカルボキシラート、n−プロピル 5,7−ジメトキシ−1−オキソ−2−インダンカルボキシラート、iso−プロピル 5,7−ジメトキシ−1−オキソ−2−インダンカルボキシラート、n−ブチル 5,7−ジメトキシ−1−オキソ−2−インダンカルボキシラート、iso−ブチル 5,7−ジメトキシ−1−オキソ−2−インダンカルボキシラート、tert−ブチル 5,7−ジメトキシ−1−オキソ−2−インダンカルボキシラート、アリル 5,7−ジメトキシ−1−オキソ−2−インダンカルボキシラート、ベンジル 5,7−ジメトキシ−1−オキソ−2−インダンカルボキシラート、メチル 4−フルオロ−1−オキソ−2−インダンカルボキシラート、エチル 4−フルオロ−1−オキソ−2−インダンカルボキシラート、n−プロピル 4−フルオロ−1−オキソ−2−インダンカルボキシラート、iso−プロピル 4−フルオロ−1−オキソ−2−インダンカルボキシラート、n−ブチル 4−フルオロ−1−オキソ−2−インダンカルボキシラート、iso−ブチル 4−フルオロ−1−オキソ−2−インダンカルボキシラート、tert−ブチル 4−フルオロ−1−オキソ−2−インダンカルボキシラート、アリル 4−フルオロ−1−オキソ−2−インダンカルボキシラート、ベンジル 4−フルオロ−1−オキソ−2−インダンカルボキシラート、メチル 5−フルオロ−1−オキソ−2−インダンカルボキシラート、エチル 5−フルオロ−1−オキソ−2−インダンカルボキシラート、n−プロピル 5−フルオロ−1−オキソ−2−インダンカルボキシラート、iso−プロピル 5−フルオロ−1−オキソ−2−インダンカルボキシラート、n−ブ
チル 5−フルオロ−1−オキソ−2−インダンカルボキシラート、iso−ブチル 5−フルオロ−1−オキソ−2−インダンカルボキシラート、tert−ブチル 5−フルオロ−1−オキソ−2−インダンカルボキシラート、アリル 5−フルオロ−1−オキソ−2−インダンカルボキシラート、ベンジル 5−フルオロ−1−オキソ−2−インダンカルボキシラート、メチル 6−フルオロ−1−オキソ−2−インダンカルボキシラート、エチル 6−フルオロ−1−オキソ−2−インダンカルボキシラート、n−プロピル 6−フルオロ−1−オキソ−2−インダンカルボキシラート、iso−プロピル 6−フルオロ−1−オキソ−2−インダンカルボキシラート、n−ブチル 6−フルオロ−1−オキソ−2−インダンカルボキシラート、iso−ブチル 6−フルオロ−1−オキソ−2−インダンカルボキシラート、tert−ブチル 6−フルオロ−1−オキソ−2−インダンカルボキシラート、アリル 6−フルオロ−1−オキソ−2−インダンカルボキシラート、ベンジル 6−フルオロ−1−オキソ−2−インダンカルボキシラート、メチル 7−フルオロ−1−オキソ−2−インダンカルボキシラート、エチル 7−フルオロ−1−オキソ−2−インダンカルボキシラート、n−プロピル 7−フルオロ−1−オキソ−2−インダンカルボキシラート、iso−プロピル 7−フルオロ−1−オキソ−2−インダンカルボキシラート、n−ブチル 7−フルオロ−1−オキソ−2−インダンカルボキシラート、iso−ブチル 7−フルオロ−1−オキソ−2−インダンカルボキシラート、tert−ブチル 7−フルオロ−1−オキソ−2−インダンカルボキシラート、アリル 7−フルオロ−1−オキソ−2−インダンカルボキシラート、ベンジル 7−フルオロ−1−オキソ−2−インダンカルボキシラート、メチル 4−クロロ−1−オキソ−2−インダンカルボキシラート、エチル 4−クロロ−1−オキソ−2−インダンカルボキシラート、n−プロピル 4−クロロ−1−オキソ−2−インダンカルボキシラート、iso−プロピル 4−クロロ−1−オキソ−2−インダンカルボキシラート、n−ブチル 4−クロロ−1−オキソ−2−インダンカルボキシラート、iso−ブチル 4−クロロ−1−オキソ−2−インダンカルボキシラート、tert−ブチル 4−クロロ−1−オキソ−2−インダンカルボキシラート、アリル 4−クロロ−1−オキソ−2−インダンカルボキシラート、ベンジル 4−クロロ−1−オキソ−2−インダンカルボキシラート、メチル 5−クロロ−1−オキソ−2−インダンカルボキシラート、エチル 5−クロロ−1−オキソ−2−インダンカルボキシラート、n−プロピル 5−クロロ−1−オキソ−2−インダンカルボキシラート、iso−プロピル 5−クロロ−1−オキソ−2−インダンカルボキシラート、n−ブチル 5−クロロ−1−オキソ−2−インダンカルボキシラート、iso−ブチル 5−クロロ−1−オキソ−2−インダンカルボキシラート、tert−ブチル 5−クロロ−1−オキソ−2−インダンカルボキシラート、アリル 5−クロロ−1−オキソ−2−インダンカルボキシラート、ベンジル 5−クロロ−1−オキソ−2−インダンカルボキシラート、メチル 6−クロロ−1−オキソ−2−インダンカルボキシラート、エチル 6−クロロ−1−オキソ−2−インダンカルボキシラート、n−プロピル 6−クロロ−1−オキソ−2−インダンカルボキシラート、iso−プロピル 6−クロロ−1−オキソ−2−インダンカルボキシラート、n−ブチル 6−クロロ−1−オキソ−2−インダンカルボキシラート、iso−ブチル 6−クロロ−1−オキソ−2−インダンカルボキシラート、tert−ブチル 6−クロロ−1−オキソ−2−インダンカルボキシラート、アリル 6−クロロ−1−オキソ−2−インダンカルボキシラート、ベンジル 6−クロロ−1−オキソ−2−インダンカルボキシラート、メチル 7−クロロ−1−オキソ−2−インダンカルボキシラート、エチル 7−クロロ−1−オキソ−2−インダンカルボキシラート、n−プロピル 7−クロロ−1−オキソ−2−インダンカルボキシラート、iso−プロピル 7−クロロ−1−オキソ−2−インダンカルボキシラート、n−ブチル 7−クロロ−1−オキソ−2−インダンカルボキシラート、iso−ブチル 7−クロロ−1−オキソ−2−インダンカルボキシラート、tert−ブチル 7−クロロ−1−オキソ−2−インダンカルボキシラート、アリル 7−クロロ−1−オキソ−2−インダンカルボキシラート、ベンジル 7−クロロ−1−オキソ−2−インダンカルボキシラート、メチル 4−ブロモ−1−オキソ−2−インダンカルボキシラート、エチル 4−ブロモ−1−オキソ−2−インダンカルボキシラート、n−プロピル 4−ブロモ−1−オキソ−2−インダンカルボキシラート、iso−プロピル 4−ブロモ−1−オキソ−2−インダンカルボキシラート、n−ブチル 4−ブロモ−1−オキソ−2−インダンカルボキシラート、iso−ブチル 4−ブロモ−1−オキソ−2−インダンカルボキシラート、tert−ブチル 4−ブロモ−1−オキソ−2−インダンカルボキシラート、アリル 4−ブロモ−1−オキソ−2−インダンカルボキシラート、ベンジル 4−ブロモ−1−オキソ−2−インダンカルボキシラート、メチル 5−ブロモ−1−オキソ−2−インダンカルボキシラート、エチル 5−ブロモ−1−オキソ−2−インダンカルボキシラート、n−プロピル 5−ブロモ−1−オキソ−2−インダンカルボキシラート、iso−プロピル 5−ブロモ−1−オキソ−2−インダンカルボキシラート、n−ブチル 5−ブロモ−1−オキソ−2−インダンカルボキシラート、iso−ブチル 5−ブロモ−1−オキソ−2−インダンカルボキシラート、tert−ブチル 5−ブロモ−1−オキソ−2−インダンカルボキシラート、アリル 5−ブロモ−1−オキソ−2−インダンカルボキシラート、ベンジル 5−ブロモ−1−オキソ−2−インダンカルボキシラート、メチル 6−ブロモ−1−オキソ−2−インダンカルボキシラート、エチル 6−ブロモ−1−オキソ−2−インダンカルボキシラート、n−プロピル 6−ブロモ−1−オキソ−2−インダンカルボキシラート、iso−プロピル 6−ブロモ−1−オキソ−2−インダンカルボキシラート、n−ブチル 6−ブロモ−1−オキソ−2−インダンカルボキシラート、iso−ブチル 6−ブロモ−1−オキソ−2−インダンカルボキシラート、tert−ブチル 6−ブロモ−1−オキソ−2−インダンカルボキシラート、アリル 6−ブロモ−1−オキソ−2−インダンカルボキシラート、ベンジル 6−ブロモ−1−オキソ−2−インダンカルボキシラート、メチル 7−ブロモ−1−オキソ−2−インダンカルボキシラート、エチル 7−ブロモ−1−オキソ−2−インダンカルボキシラート、n−プロピル 7−ブロモ−1−オキソ−2−インダンカルボキシラート、iso−プロピル 7−ブロモ−1−オキソ−2−インダンカルボキシラート、n−ブチル 7−ブロモ−1−オキソ−2−インダンカルボキシラート、iso−ブチル 7−ブロモ−1−オキソ−2−インダンカルボキシラート、tert−ブチル 7−ブロモ−1−オキソ−2−インダンカルボキシラート、アリル 7−ブロモ−1−オキソ−2−インダンカルボキシラート、ベンジル 7−ブロモ−1−オキソ−2−インダンカルボキシラート等が挙げられる。
Specific examples of the carbonyl compound represented by the general formula (1) of the present invention include acetone, 2-butanone, 2-pentanone, 2-hexanone, 2-heptanone, 2-octanone, 2-nonanone, 2- Decanone, 2-undecanone, 2-dodecanone, 3-pentanone, 3-hexanone, 3-heptanone, 3-hexanone, 3-heptanone, 3-octanone, 3-nonanone, 3-decanone, 3-undecanone, 3-dodecanone, 3-tridecanone, 3,3-dimethyl-2-butanone, acetophenone, 1-phenylpropan-1-one, methyl 3-oxobutyrate, ethyl 3-oxobutyrate, iso-propyl 3-oxobutyrate, tert- Butyl 3-oxobutyrate, allyl 3-oxobutyrate, methyl 1-oxo-2-yl Ndancarboxylate, ethyl 1-oxo-2-indanecarboxylate, n-propyl 1-oxo-2-indanecarboxylate, iso-propyl 1-oxo-2-indanecarboxylate, n-butyl 1-oxo-2 -Indan carboxylate, iso-butyl 1-oxo-2-indanecarboxylate, tert-butyl 1-oxo-2-indanecarboxylate, allyl 1-oxo-2-indanecarboxylate, benzyl 1-oxo-2-indane Carboxylate, methyl 4-methyl-1-oxo-2-indanecarboxylate, ethyl 4-methyl-1-oxo-2-indanecarboxylate, n-propyl 4-methyl-1-oxo-2-indanecarboxylate, iso-propyl 4-methyl -1-oxo-2-indanecarboxylate, n-butyl 4-methyl-1-oxo-2-indanecarboxylate, iso-butyl 4-methyl-1-oxo-2-indanecarboxylate, tert-butyl 4- Methyl-1-oxo-2-indanecarboxylate, allyl 4-methyl-1-oxo-2-indanecarboxylate, benzyl 4-methyl-1-oxo-2-indanecarboxylate, methyl 5-methyl-1-oxo 2-indanecarboxylate, ethyl 5-methyl-1-oxo-2-indanecarboxylate, n-propyl 5-methyl-1-oxo-2-indanecarboxylate, iso-propyl 5-methyl-1-oxo- 2-indanecarboxylate, n-butyl 5-methyl-1-oxo- Indan carboxylate, iso-butyl 5-methyl-1-oxo-2-indanecarboxylate, tert-butyl 5-methyl-1-oxo-2-indanecarboxylate, allyl 5-methyl-1-oxo-2- Indanecarboxylate, benzyl 5-methyl-1-oxo-2-indanecarboxylate, methyl 6-methyl-1-oxo-2-indanecarboxylate, ethyl 6-methyl-1-oxo-2-indanecarboxylate, n -Propyl 6-methyl-1-oxo-2-indanecarboxylate, iso-propyl 6-methyl-1-oxo-2-indanecarboxylate, n-butyl 6-methyl-1-oxo-2-indanecarboxylate, iso-butyl 6-methyl-1-oxo-2-indane Ruboxylate, tert-butyl 6-methyl-1-oxo-2-indanecarboxylate, allyl 6-methyl-1-oxo-2-indanecarboxylate, benzyl 6-methyl-1-oxo-2-indanecarboxylate, methyl 7-methyl-1-oxo-2-indanecarboxylate, ethyl 7-methyl-1-oxo-2-indanecarboxylate, n-propyl 7-methyl-1-oxo-2-indanecarboxylate, iso-propyl 7 -Methyl-1-oxo-2-indanecarboxylate, n-butyl 7-methyl-1-oxo-2-indanecarboxylate, iso-butyl 7-methyl-1-oxo-2-indanecarboxylate, tert-butyl 7-Methyl-1-oxo-2-indanecarboxy , Allyl 7-methyl-1-oxo-2-indanecarboxylate, benzyl 7-methyl-1-oxo-2-indanecarboxylate, methyl 4-methoxy-1-oxo-2-indanecarboxylate, ethyl 4 -Methoxy-1-oxo-2-indanecarboxylate, n-propyl 4-methoxy-1-oxo-2-indanecarboxylate, iso-propyl 4-methoxy-1-oxo-2-indanecarboxylate, n-butyl 4-methoxy-1-oxo-2-indanecarboxylate, iso-butyl 4-methoxy-1-oxo-2-indanecarboxylate, tert-butyl 4-methoxy-1-oxo-2-indanecarboxylate, allyl 4 -Methoxy-1-oxo-2-indanecarboxyler , Benzyl 4-methoxy-1-oxo-2-indanecarboxylate, methyl 5-methoxy-1-oxo-2-indanecarboxylate, ethyl 5-methoxy-1-oxo-2-indanecarboxylate, n-propyl 5 -Methoxy-1-oxo-2-indanecarboxylate, iso-propyl 5-methoxy-1-oxo-2-indanecarboxylate, n-butyl 5-methoxy-1-oxo-2-indanecarboxylate, iso-butyl 5-methoxy-1-oxo-2-indanecarboxylate, tert-butyl 5-methoxy-1-oxo-2-indanecarboxylate, allyl 5-methoxy-1-oxo-2-indanecarboxylate, benzyl 5-methoxy -1-oxo-2-indanecarboxyla Methyl 6-methoxy-1-oxo-2-indanecarboxylate, ethyl 6-methoxy-1-oxo-2-indanecarboxylate, n-propyl 6-methoxy-1-oxo-2-indanecarboxylate, iso -Propyl 6-methoxy-1-oxo-2-indanecarboxylate, n-butyl 6-methoxy-1-oxo-2-indanecarboxylate, iso-butyl 6-methoxy-1-oxo-2-indanecarboxylate, tert-butyl 6-methoxy-1-oxo-2-indanecarboxylate, allyl 6-methoxy-1-oxo-2-indanecarboxylate, benzyl 6-methoxy-1-oxo-2-indanecarboxylate, methyl 7- Methoxy-1-oxo-2-indanecarboxyla Ethyl 7-methoxy-1-oxo-2-indanecarboxylate, n-propyl 7-methoxy-1-oxo-2-indanecarboxylate, iso-propyl 7-methoxy-1-oxo-2-indanecarboxylate N-butyl 7-methoxy-1-oxo-2-indanecarboxylate, iso-butyl 7-methoxy-1-oxo-2-indanecarboxylate, tert-butyl 7-methoxy-1-oxo-2-indanecarboxylate Allyl 7-methoxy-1-oxo-2-indanecarboxylate, benzyl 7-methoxy-1-oxo-2-indanecarboxylate, methyl 4,5-dimethoxy-1-oxo-2-indanecarboxylate, ethyl 4,5-dimethoxy-1-oxo-2-indane Ruboxylate, n-propyl 4,5-dimethoxy-1-oxo-2-indanecarboxylate, iso-propyl 4,5-dimethoxy-1-oxo-2-indanecarboxylate, n-butyl 4,5-dimethoxy-1 -Oxo-2-indanecarboxylate, iso-butyl 4,5-dimethoxy-1-oxo-2-indanecarboxylate, tert-butyl 4,5-dimethoxy-1-oxo-2-indanecarboxylate, allyl 4, 5-Dimethoxy-1-oxo-2-indanecarboxylate, benzyl 4,5-dimethoxy-1-oxo-2-indanecarboxylate, methyl 5,6-dimethoxy-1-oxo-2-indanecarboxylate, ethyl 5 , 6-Dimethoxy-1-oxo-2-indanecarboki Lato, n-propyl 5,6-dimethoxy-1-oxo-2-indanecarboxylate, iso-propyl 5,6-dimethoxy-1-oxo-2-indanecarboxylate, n-butyl 5,6-dimethoxy-1 -Oxo-2-indanecarboxylate, iso-butyl 5,6-dimethoxy-1-oxo-2-indanecarboxylate, tert-butyl 5,6-dimethoxy-1-oxo-2-indanecarboxylate, allyl 5, 6-dimethoxy-1-oxo-2-indanecarboxylate, benzyl 5,6-dimethoxy-1-oxo-2-indanecarboxylate, methyl 6,7-dimethoxy-1-oxo-2-indanecarboxylate, ethyl 6 , 7-dimethoxy-1-oxo-2-indanecarboxylate, n-propyl 6,7-dimethoxy-1-oxo-2-indanecarboxylate, iso-propyl 6,7-dimethoxy-1-oxo-2-indanecarboxylate, n-butyl 6,7-dimethoxy-1-oxo 2-indanecarboxylate, iso-butyl 6,7-dimethoxy-1-oxo-2-indanecarboxylate, tert-butyl 6,7-dimethoxy-1-oxo-2-indanecarboxylate, allyl 6,7- Dimethoxy-1-oxo-2-indanecarboxylate, benzyl 6,7-dimethoxy-1-oxo-2-indanecarboxylate, methyl 4,6-dimethoxy-1-oxo-2-indanecarboxylate, ethyl 4,6 -Dimethoxy-1-oxo-2-indanecarboxylate, n-pro 4,6-dimethoxy-1-oxo-2-indanecarboxylate, iso-propyl 4,6-dimethoxy-1-oxo-2-indanecarboxylate, n-butyl 4,6-dimethoxy-1-oxo-2 Indane carboxylate, iso-butyl 4,6-dimethoxy-1-oxo-2-indanecarboxylate, tert-butyl 4,6-dimethoxy-1-oxo-2-indanecarboxylate, allyl 4,6-dimethoxy- 1-oxo-2-indanecarboxylate, benzyl 4,6-dimethoxy-1-oxo-2-indanecarboxylate, methyl 5,7-dimethoxy-1-oxo-2-indanecarboxylate, ethyl 5,7-dimethoxy -1-oxo-2-indanecarboxylate, n-propyl 5, -Dimethoxy-1-oxo-2-indanecarboxylate, iso-propyl 5,7-dimethoxy-1-oxo-2-indanecarboxylate, n-butyl 5,7-dimethoxy-1-oxo-2-indanecarboxylate Iso-butyl 5,7-dimethoxy-1-oxo-2-indanecarboxylate, tert-butyl 5,7-dimethoxy-1-oxo-2-indanecarboxylate, allyl 5,7-dimethoxy-1-oxo- 2-indanecarboxylate, benzyl 5,7-dimethoxy-1-oxo-2-indanecarboxylate, methyl 4-fluoro-1-oxo-2-indanecarboxylate, ethyl 4-fluoro-1-oxo-2-indane Carboxylate, n-propyl 4-fluoro-1-oxo 2-indanecarboxylate, iso-propyl 4-fluoro-1-oxo-2-indanecarboxylate, n-butyl 4-fluoro-1-oxo-2-indanecarboxylate, iso-butyl 4-fluoro-1-oxo 2-indanecarboxylate, tert-butyl 4-fluoro-1-oxo-2-indanecarboxylate, allyl 4-fluoro-1-oxo-2-indanecarboxylate, benzyl 4-fluoro-1-oxo-2- Indan carboxylate, methyl 5-fluoro-1-oxo-2-indanecarboxylate, ethyl 5-fluoro-1-oxo-2-indanecarboxylate, n-propyl 5-fluoro-1-oxo-2-indanecarboxylate Iso-propyl 5-fluoro- -Oxo-2-indanecarboxylate, n-butyl 5-fluoro-1-oxo-2-indanecarboxylate, iso-butyl 5-fluoro-1-oxo-2-indanecarboxylate, tert-butyl 5-fluoro- 1-oxo-2-indanecarboxylate, allyl 5-fluoro-1-oxo-2-indanecarboxylate, benzyl 5-fluoro-1-oxo-2-indanecarboxylate, methyl 6-fluoro-1-oxo-2 -Indan carboxylate, ethyl 6-fluoro-1-oxo-2-indanecarboxylate, n-propyl 6-fluoro-1-oxo-2-indanecarboxylate, iso-propyl 6-fluoro-1-oxo-2- Indanecarboxylate, n-butyl 6-fluoro -1-oxo-2-indanecarboxylate, iso-butyl 6-fluoro-1-oxo-2-indanecarboxylate, tert-butyl 6-fluoro-1-oxo-2-indanecarboxylate, allyl 6-fluoro- 1-oxo-2-indanecarboxylate, benzyl 6-fluoro-1-oxo-2-indanecarboxylate, methyl 7-fluoro-1-oxo-2-indanecarboxylate, ethyl 7-fluoro-1-oxo-2 -Indan carboxylate, n-propyl 7-fluoro-1-oxo-2-indanecarboxylate, iso-propyl 7-fluoro-1-oxo-2-indanecarboxylate, n-butyl 7-fluoro-1-oxo- 2-Indanecarboxylate, iso-butyl 7 Fluoro-1-oxo-2-indanecarboxylate, tert-butyl 7-fluoro-1-oxo-2-indanecarboxylate, allyl 7-fluoro-1-oxo-2-indanecarboxylate, benzyl 7-fluoro-1 -Oxo-2-indanecarboxylate, methyl 4-chloro-1-oxo-2-indanecarboxylate, ethyl 4-chloro-1-oxo-2-indanecarboxylate, n-propyl 4-chloro-1-oxo- 2-indanecarboxylate, iso-propyl 4-chloro-1-oxo-2-indanecarboxylate, n-butyl 4-chloro-1-oxo-2-indanecarboxylate, iso-butyl 4-chloro-1-oxo 2-Indancarboxylate, tert-butyl 4- Loro-1-oxo-2-indanecarboxylate, allyl 4-chloro-1-oxo-2-indanecarboxylate, benzyl 4-chloro-1-oxo-2-indanecarboxylate, methyl 5-chloro-1-oxo 2-indanecarboxylate, ethyl 5-chloro-1-oxo-2-indanecarboxylate, n-propyl 5-chloro-1-oxo-2-indanecarboxylate, iso-propyl 5-chloro-1-oxo- 2-indanecarboxylate, n-butyl 5-chloro-1-oxo-2-indanecarboxylate, iso-butyl 5-chloro-1-oxo-2-indanecarboxylate, tert-butyl 5-chloro-1-oxo 2-indanecarboxylate, allyl 5-chloro-1-oxo- -Indan carboxylate, benzyl 5-chloro-1-oxo-2-indanecarboxylate, methyl 6-chloro-1-oxo-2-indanecarboxylate, ethyl 6-chloro-1-oxo-2-indanecarboxylate, n-propyl 6-chloro-1-oxo-2-indanecarboxylate, iso-propyl 6-chloro-1-oxo-2-indanecarboxylate, n-butyl 6-chloro-1-oxo-2-indanecarboxylate Iso-butyl 6-chloro-1-oxo-2-indanecarboxylate, tert-butyl 6-chloro-1-oxo-2-indanecarboxylate, allyl 6-chloro-1-oxo-2-indanecarboxylate, Benzyl 6-chloro-1-oxo-2-indanecarbo Sylate, methyl 7-chloro-1-oxo-2-indanecarboxylate, ethyl 7-chloro-1-oxo-2-indanecarboxylate, n-propyl 7-chloro-1-oxo-2-indanecarboxylate, iso -Propyl 7-chloro-1-oxo-2-indanecarboxylate, n-butyl 7-chloro-1-oxo-2-indanecarboxylate, iso-butyl 7-chloro-1-oxo-2-indanecarboxylate, tert-butyl 7-chloro-1-oxo-2-indanecarboxylate, allyl 7-chloro-1-oxo-2-indanecarboxylate, benzyl 7-chloro-1-oxo-2-indanecarboxylate, methyl 4- Bromo-1-oxo-2-indanecarboxylate, ethyl 4 Bromo-1-oxo-2-indanecarboxylate, n-propyl 4-bromo-1-oxo-2-indanecarboxylate, iso-propyl 4-bromo-1-oxo-2-indanecarboxylate, n-butyl 4 -Bromo-1-oxo-2-indanecarboxylate, iso-butyl 4-bromo-1-oxo-2-indanecarboxylate, tert-butyl 4-bromo-1-oxo-2-indanecarboxylate, allyl 4- Bromo-1-oxo-2-indanecarboxylate, benzyl 4-bromo-1-oxo-2-indanecarboxylate, methyl 5-bromo-1-oxo-2-indanecarboxylate, ethyl 5-bromo-1-oxo 2-Indancarboxylate, n-propyl 5-bromo-1- Xoxo-2-indanecarboxylate, iso-propyl 5-bromo-1-oxo-2-indanecarboxylate, n-butyl 5-bromo-1-oxo-2-indanecarboxylate, iso-butyl 5-bromo-1 -Oxo-2-indanecarboxylate, tert-butyl 5-bromo-1-oxo-2-indanecarboxylate, allyl 5-bromo-1-oxo-2-indanecarboxylate, benzyl 5-bromo-1-oxo- 2-indanecarboxylate, methyl 6-bromo-1-oxo-2-indanecarboxylate, ethyl 6-bromo-1-oxo-2-indanecarboxylate, n-propyl 6-bromo-1-oxo-2-indane Carboxylate, iso-propyl 6-bromo-1-oxo-2 Indanecarboxylate, n-butyl 6-bromo-1-oxo-2-indanecarboxylate, iso-butyl 6-bromo-1-oxo-2-indanecarboxylate, tert-butyl 6-bromo-1-oxo-2 -Indan carboxylate, allyl 6-bromo-1-oxo-2-indanecarboxylate, benzyl 6-bromo-1-oxo-2-indanecarboxylate, methyl 7-bromo-1-oxo-2-indanecarboxylate, Ethyl 7-bromo-1-oxo-2-indanecarboxylate, n-propyl 7-bromo-1-oxo-2-indanecarboxylate, iso-propyl 7-bromo-1-oxo-2-indanecarboxylate, n -Butyl 7-bromo-1-oxo-2-indanecarbo Sylate, iso-butyl 7-bromo-1-oxo-2-indanecarboxylate, tert-butyl 7-bromo-1-oxo-2-indanecarboxylate, allyl 7-bromo-1-oxo-2-indanecarboxylate And benzyl 7-bromo-1-oxo-2-indanecarboxylate.
本発明の一般式(1)で表されるマロノニトリル誘導体としては、具体的に例えば、1−ジシアノメチリデン−1,2,3,4−テトラヒドロナフタレン、1−ジシアノメチリデン−2−メチル−1,2,3,4−テトラヒドロナフタレン、1−ジシアノメチリデン−3−メチル−1,2,3,4−テトラヒドロナフタレン、1−ジシアノメチリデン−4−メチル−1,2,3,4−テトラヒドロナフタレン、1−ジシアノメチリデン−5−メトキシ−1,2,3,4−テトラヒドロナフタレン、1−ジシアノメチリデン−6−メトキシ−1,2,3,4−テトラヒドロナフタレン、1−ジシアノメチリデン−7−メトキシ−1,2,3,4−テトラヒドロナフタレン、1−ジシアノメチリデン−8−メトキシ−1,2,3,4−テトラヒドロナフタレン、1−ジシアノメチリデン−5,6−ジメトキシ−1,2,3,4−テトラヒドロナフタレン、1−ジシアノメチリデン−6,7−ジメトキシ−1,2,3,4−テトラヒドロナフタレン、1−ジシアノメチリデン−7,8−ジメトキシ−1,2,3,4−テトラヒドロナフタレン、1−ジシアノメチリデン−5,7−ジメトキシ−1,2,3,4−テトラヒドロナフタレン、1−ジシアノメチリデン−6,8−ジメトキシ−1,2,3,4−テトラヒドロナフタレン、4−ジシアノメチリデンクロマン、4−ジシアノメチリデンチオクロマン、5−ジシアノメチリデン−6,7,8,9−テトラヒドロ−5H−ベンゾシクロヘプテン、ジシアノメチリデンシクロヘキサン、1−ジシアノメチリデン−1−フェニルブタン、1−ジシアノメチリデン−3−メチル−1−フェニルブタン、1−ジシアノメチリデン−2−フェニルプロパン、1−ジシアノメチリデン−1−(4−メトキシフェニル)プロパン、1−ジシアノメチリデン−1−(4−ブロモフェニル)プロパン、1−ジシアノメチリデン−1−(6−メトキシ−2−ナフチル)プロパン、1−ジシアノメチリデン−1−(4−メトキシフェニル)エタン、1−ジシアノメチリデン−1−(4−ブロモフェニル)エタン、1−ジシアノメチリデン−1−(6−メトキシ−2−ナフチル)エタン等が挙げられる。 Specific examples of the malononitrile derivative represented by the general formula (1) of the present invention include 1-dicyanomethylidene-1,2,3,4-tetrahydronaphthalene, 1-dicyanomethylidene-2-methyl-1 , 2,3,4-tetrahydronaphthalene, 1-dicyanomethylidene-3-methyl-1,2,3,4-tetrahydronaphthalene, 1-dicyanomethylidene-4-methyl-1,2,3,4-tetrahydro Naphthalene, 1-dicyanomethylidene-5-methoxy-1,2,3,4-tetrahydronaphthalene, 1-dicyanomethylidene-6-methoxy-1,2,3,4-tetrahydronaphthalene, 1-dicyanomethylidene- 7-methoxy-1,2,3,4-tetrahydronaphthalene, 1-dicyanomethylidene-8-methoxy-1,2,3,4-tetrahydride Naphthalene, 1-dicyanomethylidene-5,6-dimethoxy-1,2,3,4-tetrahydronaphthalene, 1-dicyanomethylidene-6,7-dimethoxy-1,2,3,4-tetrahydronaphthalene, 1- Dicyanomethylidene-7,8-dimethoxy-1,2,3,4-tetrahydronaphthalene, 1-dicyanomethylidene-5,7-dimethoxy-1,2,3,4-tetrahydronaphthalene, 1-dicyanomethylidene- 6,8-dimethoxy-1,2,3,4-tetrahydronaphthalene, 4-dicyanomethylidenechroman, 4-dicyanomethylidenethiochroman, 5-dicyanomethylidene-6,7,8,9-tetrahydro- 5H-benzocycloheptene, dicyanomethylidenecyclohexane, 1-dicyanomethylidene-1-phenylbutane, 1- Cyanomethylidene-3-methyl-1-phenylbutane, 1-dicyanomethylidene-2-phenylpropane, 1-dicyanomethylidene-1- (4-methoxyphenyl) propane, 1-dicyanomethylidene-1- (4-bromo Phenyl) propane, 1-dicyanomethylidene-1- (6-methoxy-2-naphthyl) propane, 1-dicyanomethylidene-1- (4-methoxyphenyl) ethane, 1-dicyanomethylidene-1- (4- Bromophenyl) ethane, 1-dicyanomethylidene-1- (6-methoxy-2-naphthyl) ethane and the like.
本発明の一般式(3)で表されるジフルオロメチル基含有化合物としては、具体的には例えば、4,4−ジフルオロ−2−ブタノン、3−ジフルオロメチル−2−ペンタノン、3−ジフルロメチル−2−ヘキサノン、3−ジフルオロメチル−2−ヘプタノン、3−ジフルオロメチル−2−オクタノン、3−ジフルオロメチル−2−ノナノン、3−ジフルオロメチル−2−デカノン、3−ジフルオロメチル−2−ウンデカノン、3−ジフルオロメチル−2−ドデカノン、2−ジフルオロメチル−3−ペンタノン、4−ジフルオロメチル−3−ヘキサノン、4−ジフルオロメチル−3−ヘプタノン、4−ジフルオロメチル−3−ヘキサノン、4−ジフルオロメチル−3−ヘプタノン、4−ジフルオロメチル−3−オクタノン、4−ジフルオロメチル−3−ノナノン、4−ジフルオロメチル−3−デカノン、4−ジフルオロメチル−3−ウンデカノン、4−ジフルオロメチル−3−ドデカノン、4−ジフルオロメチル−3−トリデカノン、1,1−ジフルオロ−4,4−ジメチル−2−ペンタノン、γ,γ−ジフルオロプロピオフェノン、2−ジフルオロメチル−1−フェニルプロパン−1−オン、メチル 2−ジフルオロメチル−3−オキソブチラート、エチル 2−ジフルオロメチル−3−オキソブチラート、iso−プロピル 2−ジフルオロメチル−3−オキソブチラート、tert−ブチル 2−ジフルオロメチル−3−オキソブチラート、アリル 2−ジフルオロメチル−3−オキソブチラート、メチル 2−ジフルオロメチル−1−オキソ−2−インダンカルボキシラート、エチル 2−ジフルオロメチル−1−オキソ−2−インダンカルボキシラート、n−プロピル 2−ジフルオロメチル−1−オキソ−2−インダンカルボキシラート、iso−プロピル 2−ジフルオロメチル−1−オキソ−2−インダンカルボキシラート、n−ブチル 2−ジフルオロメチル−1−オキソ−2−インダンカルボキシラート、iso−ブチル 2−ジフルオロメチル−1−オキソ−2−インダンカルボキシラート、tert−ブチル 2−ジフルオロメチル−1−オキソ−2−インダンカルボキシラート、アリル 2−ジフルオロメチル−1−オキソ−2−インダンカルボキシラート、ベンジル 2−ジフルオロメチル−1−オキソ−2−インダンカルボキシラート、メチル 2−ジフルオロメチル−4−メチル−1−オキソ−2−インダンカルボキシラート、エチル 2−ジフルオロメチル−4−メチル−1−オキソ−2−インダンカルボキシラート、n−プロピル 2−ジフルオロメチル−4−メチル−1−オキソ−2−インダンカルボキシラート、iso−プロピル 2−ジフルオロメチル−4−メチル−1−オキソ−2−インダンカルボキシラート、n−ブチル 2−ジフルオロメチル−4−メチル−1−オキソ−2−インダンカルボキシラート、iso−ブチル 2−ジフルオロメチル−4−メチル−1−オキソ−2−インダンカルボキシラート、tert−ブチル 2−ジフルオロメチル−4−メチル−1−オキソ−2−インダンカルボキシラート、アリル 2−ジフルオロメチル−4−メチル−1−オキソ−2−インダンカルボキシラート、ベンジル 2−ジフルオロメチル−4−メチル−1−オキソ−2−インダンカルボキシラート、メチル 2−ジフルオロメチル−5−メチル−1−オキソ−2−インダンカルボキシラート、エチル 2−ジフルオロメチル−5−メチル−1−オキソ−2−インダンカルボキシラート、n−プロピル 2−ジフルオロメチル−5−メチル−1−オキソ−2−インダンカルボキシラート、iso−プロピル 2−ジフルオロメチル−5−メチル−1−オキソ−2−インダンカルボキシラート、n−ブチル 2−ジフルオロメチル−5−メチル−1−オキソ−2−インダンカルボキシラート、iso−ブチル 2−ジフルオロメチル−5−メチル−1−オキソ−2−インダンカルボキシラート、tert−ブチル 2−ジフルオロメチル−5−メチル−1−オキソ−2−インダンカルボキシラート、アリル 2−ジフルオロメチル−5−メチル−1−オキソ−2−インダンカルボキシラート、ベンジル 2−ジフルオロメチル−5−メチル−1−オキソ−2−インダンカルボキシラート、メチル 2−ジフルオロメチル−6−メチル−1−オキソ−2−インダンカルボキシラート、エチル 2−ジフルオロメチル−6−メチル−1−オキソ−2−インダンカルボキシラート、n−プロピル 2−ジフルオロメチル−6−メチル−1−オキソ−2−インダンカルボキシラート、iso−プロピル 2−ジフルオロメチル−6−メチル−1−オキソ−2−インダンカルボキシラート、n−ブチル 2−ジフルオロメチル−6−メチル−1−オキソ−2−インダンカルボキシラート、iso−ブチル 2−ジフルオロメチル−6−メチル−1−オキソ−2−インダンカルボキシラート、tert−ブチル 2−ジフルオロメチル−6−メチル−1−オキソ−2−インダンカルボキシラート、アリル 2−ジフルオロメチル−6−メチル−1−オキソ−2−インダンカルボキシラート、ベンジル 2−ジフルオロメチル−6−メチル−1−オキソ−2−インダンカルボキシラート、メチル 2−ジフルオロメチル−7−メチル−1−オキソ−2−インダンカルボキシラート、エチル 2−ジフルオロメチル−7−メチル−1−オキソ−2−インダンカルボキシラート、n−プロピル 2−ジフルオロメチル−7−メチル−1−オキソ−2−インダンカルボキシラート、iso−プロピル 2−ジフルオロメチル−7−メチル−1−オキソ−2−インダンカルボキシラート、n−ブチル 2−ジフルオロメチル−7−メチル−1−オキソ−2−インダンカルボキシラート、iso−ブチル 2−ジフルオロメチル−7−メチル−1−オキソ−2−インダンカルボキシラート、tert−ブチル 2−ジフルオロメチル−7−メチル−1−オキソ−2−インダンカルボキシラート、アリル 2−ジフルオロメチル−7−メチル−1−オキソ−2−インダンカルボキシラート、ベンジル 2−ジフルオロメチル−7−メチル−1−オキソ−2−インダンカルボキシラート、メチル 2−ジフルオロメチル−4−メトキシ−1−オキソ−2−インダンカルボキシラート、エチル 2−ジフルオロメチル−4−メトキシ−1−オキソ−2−インダンカルボキシラート、n−プロピル 2−ジフルオロメチル−4−メトキシ−1−オキソ−2−インダンカルボキシラート、iso−プロピル 2−ジフルオロメチル−4−メトキシ−1−オキソ−2−インダンカルボキシラート、n−ブチル 2−ジフルオロメチル−4−メトキシ−1−オキソ−2−インダンカルボキシラート、iso−ブチル 2−ジフルオロメチル−4−メトキシ−1−オキソ−2−インダンカルボキシラート、tert−ブチル 2−ジフルオロメチル−4−メトキシ−1−オキソ−2−インダンカルボキシラート、アリル 2−ジフルオロメチル−4−メトキシ−1−オキソ−2−インダンカルボキシラート、ベンジル 2−ジフルオロメチル−4−メトキシ−1−オキソ−2−インダンカルボキシラート、メチル 2−ジフルオロメチル−5−メトキシ−1−オキソ−2−インダンカルボキシラート、エチル 2−ジフルオロメチル−5−メトキシ−1−オキソ−2−インダンカルボキシラート、n−プロピル 2−ジフルオロメチル−5−メトキシ−1−オキソ−2−インダンカルボキシラート、iso−プロピル 2−ジフルオロメチル−5−メトキシ−1−オキソ−2−インダンカルボキシラート、n−ブチル 2−ジフルオロメチル−5−メトキシ−1−オキソ−2−インダンカルボキシラート、iso−ブチル 2−ジフルオロメチル−5−メトキシ−1−オキソ−2−インダンカルボキシラート、tert−ブチル 2−ジフルオロメチル−5−メトキシ−1−オキソ−2−インダンカルボキシラート、アリル 2−ジフルオロメチル−5−メトキシ−1−オキソ−2−インダンカルボキシラート、ベンジル 2−ジフルオロメチル−5−メトキシ−1−オキソ−2−インダンカルボキシラート、メチル 2−ジフルオロメチル−6−メトキシ−1−オキソ−2−インダンカルボキシラート、エチル 2−ジフルオロメチル−6−メトキシ−1−オキソ−2−インダンカルボキシラート、n−プロピル 2−ジフルオロメチル−6−メトキシ−1−オキソ−2−インダンカルボキシラート、iso−プロピル 2−ジフルオロメチル−6−メトキシ−1−オキソ−2−インダンカルボキシラート、n−ブチル 2−ジフルオロメチル−6−メトキシ−1−オキソ−2−インダンカルボキシラート、iso−ブチル 2−ジフルオロメチル−6−メトキシ−1−オキソ−2−インダンカルボキシラート、tert−ブチル 2−ジフルオロメチル−6−メトキシ−1−オキソ−2−インダンカルボキシラート、アリル 2−ジフルオロメチル−6−メトキシ−1−オキソ−2−インダンカルボキシラート、ベンジル 2−ジフルオロメチル−6−メトキシ−1−オキソ−2−インダンカルボキシラート、メチル 2−ジフルオロメチル−7−メトキシ−1−オキソ−2−インダンカルボキシラート、エチル 2−ジフルオロメチル−7−メトキシ−1−オキソ−2−インダンカルボキシラート、n−プロピル 2−ジフルオロメチル−7−メトキシ−1−オキソ−2−インダンカルボキシラート、iso−プロピル 2−ジフルオロメチル−7−メトキシ−1−オキソ−2−インダンカルボキシラート、n−ブチル 2−ジフルオロメチル−7−メトキシ−1−オキソ−2−インダンカルボキシラート、iso−ブチル 2−ジフルオロメチル−7−メトキシ−1−オキソ−2−インダンカルボキシラート、tert−ブチル 2−ジフルオロメチル−7−メトキシ−1−オキソ−2−インダンカルボキシラート、アリル 2−ジフルオロメチル−7−メトキシ−1−オキソ−2−インダンカルボキシラート、ベンジル 2−ジフルオロメチル−7−メトキシ−1−オキソ−2−インダンカルボキシラート、メチル 2−ジフルオロメチル−4,5−ジメトキシ−1−オキソ−2−インダンカルボキシラート、エチル 2−ジフルオロメチル−4,5−ジメトキシ−1−オキソ−2−インダンカルボキシラート、n−プロピル 2−ジフルオロメチル−4,5−ジメトキシ−1−オキソ−2−インダンカルボキシラート、iso−プロピル 2−ジフルオロメチル−4,5−ジメトキシ−1−オキソ−2−インダンカルボキシラート、n−ブチル 2−ジフルオロメチル−4,5−ジメトキシ−1−オキソ−2−インダンカルボキシラート、iso−ブチル 2−ジフルオロメチル−4,5−ジメトキシ−1−オキソ−2−インダンカルボキシラート、tert−ブチル 2−ジフルオロメチル−4,5−ジメトキシ−1−オキソ−2−インダンカルボキシラート、アリル 2−ジフルオロメチル−4,5−ジメトキシ−1−オキソ−2−インダンカルボキシラート、ベンジル 2−ジフルオロメチル−4,5−ジメトキシ−1−オキソ−2−インダンカルボキシラート、メチル 2−ジフルオロメチル−5,6−ジメトキシ−1−オキソ−2−インダンカルボキシラート、エチル 2−ジフルオロメチル−5,6−ジメトキシ−1−オキソ−2−インダンカルボキシラート、n−プロピル 2−ジフルオロメチル−5,6−ジメトキシ−1−オキソ−2−インダンカルボキシラート、iso−プロピル 2−ジフルオロメチル−5,6−ジメトキシ−1−オキソ−2−インダンカルボキシラート、n−ブチル 2−ジフルオロメチル−5,6−ジメトキシ−1−オキソ−2−インダンカルボキシラート、iso−ブチル 2−ジフルオロメチル−5,6−ジメトキシ−1−オキソ−2−インダンカルボキシラート、tert−ブチル 2−ジフルオロメチル−5,6−ジメトキシ−1−オキソ−2−インダンカルボキシラート、アリル 2−ジフルオロメチル−5,6−ジメトキシ−1−オキソ−2−インダンカルボキシラート、ベンジル 2−ジフルオロメチル−5,6−ジメトキシ−1−オキソ−2−インダンカルボキシラート、メチル 2−ジフルオロメチル−6,7−ジメトキシ−1−オキソ−2−インダンカルボキシラート、エチル 2−ジフルオロ
メチル−6,7−ジメトキシ−1−オキソ−2−インダンカルボキシラート、n−プロピル 2−ジフルオロメチル−6,7−ジメトキシ−1−オキソ−2−インダンカルボキシラート、iso−プロピル 2−ジフルオロメチル−6,7−ジメトキシ−1−オキソ−2−インダンカルボキシラート、n−ブチル 2−ジフルオロメチル−6,7−ジメトキシ−1−オキソ−2−インダンカルボキシラート、iso−ブチル 2−ジフルオロメチル−6,7−ジメトキシ−1−オキソ−2−インダンカルボキシラート、tert−ブチル 2−ジフルオロメチル−6,7−ジメトキシ−1−オキソ−2−インダンカルボキシラート、アリル 2−ジフルオロメチル−6,7−ジメトキシ−1−オキソ−2−インダンカルボキシラート、ベンジル 2−ジフルオロメチル−6,7−ジメトキシ−1−オキソ−2−インダンカルボキシラート、メチル 2−ジフルオロメチル−4,6−ジメトキシ−1−オキソ−2−インダンカルボキシラート、エチル 2−ジフルオロメチル−4,6−ジメトキシ−1−オキソ−2−インダンカルボキシラート、n−プロピル 2−ジフルオロメチル−4,6−ジメトキシ−1−オキソ−2−インダンカルボキシラート、iso−プロピル 2−ジフルオロメチル−4,6−ジメトキシ−1−オキソ−2−インダンカルボキシラート、n−ブチル 2−ジフルオロメチル−4,6−ジメトキシ−1−オキソ−2−インダンカルボキシラート、iso−ブチル 2−ジフルオロメチル−4,6−ジメトキシ−1−オキソ−2−インダンカルボキシラート、tert−ブチル 2−ジフルオロメチル−4,6−ジメトキシ−1−オキソ−2−インダンカルボキシラート、アリル 2−ジフルオロメチル−4,6−ジメトキシ−1−オキソ−2−インダンカルボキシラート、ベンジル 2−ジフルオロメチル−4,6−ジメトキシ−1−オキソ−2−インダンカルボキシラート、メチル 2−ジフルオロメチル−5,7−ジメトキシ−1−オキソ−2−インダンカルボキシラート、エチル 2−ジフルオロメチル−5,7−ジメトキシ−1−オキソ−2−インダンカルボキシラート、n−プロピル 2−ジフルオロメチル−5,7−ジメトキシ−1−オキソ−2−インダンカルボキシラート、iso−プロピル 2−ジフルオロメチル−5,7−ジメトキシ−1−オキソ−2−インダンカルボキシラート、n−ブチル 2−ジフルオロメチル−5,7−ジメトキシ−1−オキソ−2−インダンカルボキシラート、iso−ブチル 2−ジフルオロメチル−5,7−ジメトキシ−1−オキソ−2−インダンカルボキシラート、tert−ブチル 2−ジフルオロメチル−5,7−ジメトキシ−1−オキソ−2−インダンカルボキシラート、アリル 2−ジフルオロメチル−5,7−ジメトキシ−1−オキソ−2−インダンカルボキシラート、ベンジル 2−ジフルオロメチル−5,7−ジメトキシ−1−オキソ−2−インダンカルボキシラート、メチル 2−ジフルオロメチル−4−フルオロ−1−オキソ−2−インダンカルボキシラート、エチル 2−ジフルオロメチル−4−フルオロ−1−オキソ−2−インダンカルボキシラート、n−プロピル 2−ジフルオロメチル−4−フルオロ−1−オキソ−2−インダンカルボキシラート、iso−プロピル 2−ジフルオロメチル−4−フルオロ−1−オキソ−2−インダンカルボキシラート、n−ブチル 2−ジフルオロメチル−4−フルオロ−1−オキソ−2−インダンカルボキシラート、iso−ブチル 2−ジフルオロメチル−4−フルオロ−1−オキソ−2−インダンカルボキシラート、tert−ブチル 2−ジフルオロメチル−4−フルオロ−1−オキソ−2−インダンカルボキシラート、アリル 2−ジフルオロメチル−4−フルオロ−1−オキソ−2−インダンカルボキシラート、ベンジル 2−ジフルオロメチル−4−フルオロ−1−オキソ−2−インダンカルボキシラート、メチル 2−ジフルオロメチル−5−フルオロ−1−オキソ−2−インダンカルボキシラート、エチル 2−ジフルオロメチル−5−フルオロ−1−オキソ−2−インダンカルボキシラート、n−プロピル 2−ジフルオロメチル−5−フルオロ−1−オキソ−2−インダンカルボキシラート、iso−プロピル 2−ジフルオロメチル−5−フルオロ−1−オキソ−2−インダンカルボキシラート、n−ブチル 2−ジフルオロメチル−5−フルオロ−1−オキソ−2−インダンカルボキシラート、iso−ブチル 2−ジフルオロメチル−5−フルオロ−1−オキソ−2−インダンカルボキシラート、tert−ブチル 2−ジフルオロメチル−5−フルオロ−1−オキソ−2−インダンカルボキシラート、アリル 2−ジフルオロメチル−5−フルオロ−1−オキソ−2−インダンカルボキシラート、ベンジル 2−ジフルオロメチル−5−フルオロ−1−オキソ−2−インダンカルボキシラート、メチル 2−ジフルオロメチル−6−フルオロ−1−オキソ−2−インダンカルボキシラート、エチル 2−ジフルオロメチル−6−フルオロ−1−オキソ−2−インダンカルボキシラート、n−プロピル 2−ジフルオロメチル−6−フルオロ−1−オキソ−2−インダンカルボキシラート、iso−プロピル 2−ジフルオロメチル−6−フルオロ−1−オキソ−2−インダンカルボキシラート、n−ブチル 2−ジフルオロメチル−6−フルオロ−1−オキソ−2−インダンカルボキシラート、iso−ブチル 2−ジフルオロメチル−6−フルオロ−1−オキソ−2−インダンカルボキシラート、tert−ブチル 2−ジフルオロメチル−6−フルオロ−1−オキソ−2−インダンカルボキシラート、アリル 2−ジフルオロメチル−6−フルオロ−1−オキソ−2−インダンカルボキシラート、ベンジル 2−ジフルオロメチル−6−フルオロ−1−オキソ−2−インダンカルボキシラート、メチル 2−ジフルオロメチル−7−フルオロ−1−オキソ−2−インダンカルボキシラート、エチル 2−ジフルオロメチル−7−フルオロ−1−オキソ−2−インダンカルボキシラート、n−プロピル 2−ジフルオロメチル−7−フルオロ−1−オキソ−2−インダンカルボキシラート、iso−プロピル 2−ジフルオロメチル−7−フルオロ−1−オキソ−2−インダンカルボキシラート、n−ブチル 2−ジフルオロメチル−7−フルオロ−1−オキソ−2−インダンカルボキシラート、iso−ブチル 2−ジフルオロメチル−7−フルオロ−1−オキソ−2−インダンカルボキシラート、tert−ブチル 2−ジフルオロメチル−7−フルオロ−1−オキソ−2−インダンカルボキシラート、アリル 2−ジフルオロメチル−7−フルオロ−1−オキソ−2−インダンカルボキシラート、ベンジル 2−ジフルオロメチル−7−フルオロ−1−オキソ−2−インダンカルボキシラート、メチル 2−ジフルオロメチル−4−クロロ−1−オキソ−2−インダンカルボキシラート、エチル 2−ジフルオロメチル−4−クロロ−1−オキソ−2−インダンカルボキシラート、n−プロピル 2−ジフルオロメチル−4−クロロ−1−オキソ−2−インダンカルボキシラート、iso−プロピル 2−ジフルオロメチル−4−クロロ−1−オキソ−2−インダンカルボキシラート、n−ブチル 2−ジフルオロメチル−4−クロロ−1−オキソ−2−インダンカルボキシラート、iso−ブチル 2−ジフルオロメチル−4−クロロ−1−オキソ−2−インダンカルボキシラート、tert−ブチル 2−ジフルオロメチル−4−クロロ−1−オキソ−2−インダンカルボキシラート、アリル 2−ジフルオロメチル−4−クロロ−1−オキソ−2−インダンカルボキシラート、ベンジル 2−ジフルオロメチル−4−クロロ−1−オキソ−2−インダンカルボキシラート、メチル 2−ジフルオロメチル−5−クロロ−1−オキソ−2−インダンカルボキシラート、エチル 2−ジフルオロメチル−5−クロロ−1−オキソ−2−インダンカルボキシラート、n−プロピル 2−ジフルオロメチル−5−クロロ−1−オキソ−2−インダンカルボキシラート、iso−プロピル 2−ジフルオロメチル−5−クロロ−1−オキソ−2−インダンカルボキシラート、n−ブチル 2−ジフルオロメチル−5−クロロ−1−オキソ−2−インダンカルボキシラート、iso−ブチル 2−ジフルオロメチル−5−クロロ−1−オキソ−2−インダンカルボキシラート、tert−ブチル 2−ジフルオロメチル−5−クロロ−1−オキソ−2−インダンカルボキシラート、アリル 2−ジフルオロメチル−5−クロロ−1−オキソ−2−インダンカルボキシラート、ベンジル 2−ジフルオロメチル−5−クロロ−1−オキソ−2−インダンカルボキシラート、メチル 2−ジフルオロメチル−6−クロロ−1−オキソ−2−インダンカルボキシラート、エチル 2−ジフルオロメチル−6−クロロ−1−オキソ−2−インダンカルボキシラート、n−プロピル 2−ジフルオロメチル−6−クロロ−1−オキソ−2−インダンカルボキシラート、iso−プロピル 2−ジフルオロメチル−6−クロロ−1−オキソ−2−インダンカルボキシラート、n−ブチル 2−ジフルオロメチル−6−クロロ−1−オキソ−2−インダンカルボキシラート、iso−ブチル 2−ジフルオロメチル−6−クロロ−1−オキソ−2−インダンカルボキシラート、tert−ブチル 2−ジフルオロメチル−6−クロロ−1−オキソ−2−インダンカルボキシラート、アリル 2−ジフルオロメチル−6−クロロ−1−オキソ−2−インダンカルボキシラート、ベンジル 2−ジフルオロメチル−6−クロロ−1−オキソ−2−インダンカルボキシラート、メチル 2−ジフルオロメチル−7−クロロ−1−オキソ−2−インダンカルボキシラート、エチル 2−ジフルオロメチル−7−クロロ−1−オキソ−2−インダンカルボキシラート、n−プロピル 2−ジフルオロメチル−7−クロロ−1−オキソ−2−インダンカルボキシラート、iso−プロピル 2−ジフルオロメチル−7−クロロ−1−オキソ−2−インダンカルボキシラート、n−ブチル 2−ジフルオロメチル−7−クロロ−1−オキソ−2−インダンカルボキシラート、iso−ブチル 2−ジフルオロメチル−7−クロロ−1−オキソ−2−インダンカルボキシラート、tert−ブチル 2−ジフルオロメチル−7−クロロ−1−オキソ−2−インダンカルボキシラート、アリル 2−ジフルオロメチル−7−クロロ−1−オキソ−2−インダンカルボキシラート、ベンジル 2−ジフルオロメチル−7−クロロ−1−オキソ−2−インダンカルボキシラート、メチル 2−ジフルオロメチル−4−ブロモ−1−オキソ−2−インダンカルボキシラート、エチル 2−ジフルオロメチル−4−ブロモ−1−オキソ−2−インダンカルボキシラート、n−プロピル 2−ジフルオロメチル−4−ブロモ−1−オキソ−2−インダンカルボキシラート、iso−プロピル 2−ジフルオロメチル−4−ブロモ−1−オキソ−2−インダンカルボキシラート、n−ブチル 2−ジフルオロメチル−4−ブロモ−1−オキソ−2−インダンカルボキシラート、iso−ブチル 2−ジフルオロメチル−4−ブロモ−1−オキソ−2−インダンカルボキシラート、tert−ブチル 2−ジフルオロメチル−4−ブロモ−1−オキソ−2−インダンカルボキシラート、アリル 2−ジフルオロメチル−4−ブロモ−1−オキソ−2−インダンカルボキシラート、ベンジル 2−ジフルオロメチル−4−ブロモ−1−オキソ−2−インダンカルボキシラート、メチル 2−ジフルオロメチル−5−ブロモ−1−オキソ−2−インダンカルボキシラート、エチル 2−ジフルオロメチル−5−ブロモ−1−オキソ−2−インダンカルボキシラート、n−プロピル 2−ジフルオロメチル−5−ブロモ−1−オキソ−2−インダンカルボキシラート、iso−プロピル 2−ジフルオロメチル−5−ブロモ−1−オキソ−2−インダンカルボキシラート、n−ブチル 2−ジフルオロメチル−5−ブロモ−1−オキソ−2−インダンカルボキシラート、iso−ブチル 2−ジフルオロメチル−5−ブロモ−1−オキソ−2−インダンカ
ルボキシラート、tert−ブチル 2−ジフルオロメチル−5−ブロモ−1−オキソ−2−インダンカルボキシラート、アリル 2−ジフルオロメチル−5−ブロモ−1−オキソ−2−インダンカルボキシラート、ベンジル 2−ジフルオロメチル−5−ブロモ−1−オキソ−2−インダンカルボキシラート、メチル 2−ジフルオロメチル−6−ブロモ−1−オキソ−2−インダンカルボキシラート、エチル 2−ジフルオロメチル−6−ブロモ−1−オキソ−2−インダンカルボキシラート、n−プロピル 2−ジフルオロメチル−6−ブロモ−1−オキソ−2−インダンカルボキシラート、iso−プロピル 2−ジフルオロメチル−6−ブロモ−1−オキソ−2−インダンカルボキシラート、n−ブチル 2−ジフルオロメチル−6−ブロモ−1−オキソ−2−インダンカルボキシラート、iso−ブチル 2−ジフルオロメチル−6−ブロモ−1−オキソ−2−インダンカルボキシラート、tert−ブチル 2−ジフルオロメチル−6−ブロモ−1−オキソ−2−インダンカルボキシラート、アリル 2−ジフルオロメチル−6−ブロモ−1−オキソ−2−インダンカルボキシラート、ベンジル 2−ジフルオロメチル−6−ブロモ−1−オキソ−2−インダンカルボキシラート、メチル 2−ジフルオロメチル−7−ブロモ−1−オキソ−2−インダンカルボキシラート、エチル 2−ジフルオロメチル−7−ブロモ−1−オキソ−2−インダンカルボキシラート、n−プロピル 2−ジフルオロメチル−7−ブロモ−1−オキソ−2−インダンカルボキシラート、iso−プロピル 2−ジフルオロメチル−7−ブロモ−1−オキソ−2−インダンカルボキシラート、n−ブチル 2−ジフルオロメチル−7−ブロモ−1−オキソ−2−インダンカルボキシラート、iso−ブチル 2−ジフルオロメチル−7−ブロモ−1−オキソ−2−インダンカルボキシラート、tert−ブチル 2−ジフルオロメチル−7−ブロモ−1−オキソ−2−インダンカルボキシラート、アリル 2−ジフルオロメチル−7−ブロモ−1−オキソ−2−インダンカルボキシラート、ベンジル 2−ジフルオロメチル−7−ブロモ−1−オキソ−2−インダンカルボキシラート等が挙げられる。
Specific examples of the difluoromethyl group-containing compound represented by the general formula (3) of the present invention include 4,4-difluoro-2-butanone, 3-difluoromethyl-2-pentanone, and 3-difluoromethyl-2. -Hexanone, 3-difluoromethyl-2-heptanone, 3-difluoromethyl-2-octanone, 3-difluoromethyl-2-nonanone, 3-difluoromethyl-2-decanone, 3-difluoromethyl-2-undecanone, 3- Difluoromethyl-2-dodecanone, 2-difluoromethyl-3-pentanone, 4-difluoromethyl-3-hexanone, 4-difluoromethyl-3-heptanone, 4-difluoromethyl-3-hexanone, 4-difluoromethyl-3- Heptanone, 4-difluoromethyl-3-octanone, 4-difluoromethyl -3-nonanone, 4-difluoromethyl-3-decanone, 4-difluoromethyl-3-undecanone, 4-difluoromethyl-3-dodecanone, 4-difluoromethyl-3-tridecanone, 1,1-difluoro-4,4 -Dimethyl-2-pentanone, γ, γ-difluoropropiophenone, 2-difluoromethyl-1-phenylpropan-1-one, methyl 2-difluoromethyl-3-oxobutyrate, ethyl 2-difluoromethyl-3- Oxobutyrate, iso-propyl 2-difluoromethyl-3-oxobutyrate, tert-butyl 2-difluoromethyl-3-oxobutyrate, allyl 2-difluoromethyl-3-oxobutyrate, methyl 2-difluoromethyl- 1-oxo-2-indanecarboxylate, ethyl 2 -Difluoromethyl-1-oxo-2-indanecarboxylate, n-propyl 2-difluoromethyl-1-oxo-2-indanecarboxylate, iso-propyl 2-difluoromethyl-1-oxo-2-indanecarboxylate, n-butyl 2-difluoromethyl-1-oxo-2-indanecarboxylate, iso-butyl 2-difluoromethyl-1-oxo-2-indanecarboxylate, tert-butyl 2-difluoromethyl-1-oxo-2- Indanecarboxylate, allyl 2-difluoromethyl-1-oxo-2-indanecarboxylate, benzyl 2-difluoromethyl-1-oxo-2-indanecarboxylate, methyl 2-difluoromethyl-4-methyl-1-oxo- 2-Indankar Xylate, ethyl 2-difluoromethyl-4-methyl-1-oxo-2-indanecarboxylate, n-propyl 2-difluoromethyl-4-methyl-1-oxo-2-indanecarboxylate, iso-propyl 2-difluoro Methyl-4-methyl-1-oxo-2-indanecarboxylate, n-butyl 2-difluoromethyl-4-methyl-1-oxo-2-indanecarboxylate, iso-butyl 2-difluoromethyl-4-methyl- 1-oxo-2-indanecarboxylate, tert-butyl 2-difluoromethyl-4-methyl-1-oxo-2-indanecarboxylate, allyl 2-difluoromethyl-4-methyl-1-oxo-2-indanecarboxylate Rato, benzyl 2-difluoromethyl-4-me 1-oxo-2-indanecarboxylate, methyl 2-difluoromethyl-5-methyl-1-oxo-2-indanecarboxylate, ethyl 2-difluoromethyl-5-methyl-1-oxo-2-indanecarboxylate Lato, n-propyl 2-difluoromethyl-5-methyl-1-oxo-2-indanecarboxylate, iso-propyl 2-difluoromethyl-5-methyl-1-oxo-2-indanecarboxylate, n-butyl 2 -Difluoromethyl-5-methyl-1-oxo-2-indanecarboxylate, iso-butyl 2-difluoromethyl-5-methyl-1-oxo-2-indanecarboxylate, tert-butyl 2-difluoromethyl-5 Methyl-1-oxo-2-indanecarboxylate, a 2-difluoromethyl-5-methyl-1-oxo-2-indanecarboxylate, benzyl 2-difluoromethyl-5-methyl-1-oxo-2-indanecarboxylate, methyl 2-difluoromethyl-6-methyl- 1-oxo-2-indanecarboxylate, ethyl 2-difluoromethyl-6-methyl-1-oxo-2-indanecarboxylate, n-propyl 2-difluoromethyl-6-methyl-1-oxo-2-indanecarboxylate Lato, iso-propyl 2-difluoromethyl-6-methyl-1-oxo-2-indanecarboxylate, n-butyl 2-difluoromethyl-6-methyl-1-oxo-2-indanecarboxylate, iso-butyl 2 -Difluoromethyl-6-methyl-1-oxo-2-yne Dancarboxylate, tert-butyl 2-difluoromethyl-6-methyl-1-oxo-2-indanecarboxylate, allyl 2-difluoromethyl-6-methyl-1-oxo-2-indanecarboxylate, benzyl 2-difluoro Methyl-6-methyl-1-oxo-2-indanecarboxylate, methyl 2-difluoromethyl-7-methyl-1-oxo-2-indanecarboxylate, ethyl 2-difluoromethyl-7-methyl-1-oxo- 2-indanecarboxylate, n-propyl 2-difluoromethyl-7-methyl-1-oxo-2-indanecarboxylate, iso-propyl 2-difluoromethyl-7-methyl-1-oxo-2-indanecarboxylate, n-butyl 2-difluoromethyl-7- Til-1-oxo-2-indanecarboxylate, iso-butyl 2-difluoromethyl-7-methyl-1-oxo-2-indanecarboxylate, tert-butyl 2-difluoromethyl-7-methyl-1-oxo- 2-indanecarboxylate, allyl 2-difluoromethyl-7-methyl-1-oxo-2-indanecarboxylate, benzyl 2-difluoromethyl-7-methyl-1-oxo-2-indanecarboxylate, methyl 2-difluoro Methyl-4-methoxy-1-oxo-2-indanecarboxylate, ethyl 2-difluoromethyl-4-methoxy-1-oxo-2-indanecarboxylate, n-propyl 2-difluoromethyl-4-methoxy-1- Oxo-2-indanecarboxylate, iso Propyl 2-difluoromethyl-4-methoxy-1-oxo-2-indanecarboxylate, n-butyl 2-difluoromethyl-4-methoxy-1-oxo-2-indanecarboxylate, iso-butyl 2-difluoromethyl- 4-methoxy-1-oxo-2-indanecarboxylate, tert-butyl 2-difluoromethyl-4-methoxy-1-oxo-2-indanecarboxylate, allyl 2-difluoromethyl-4-methoxy-1-oxo- 2-indanecarboxylate, benzyl 2-difluoromethyl-4-methoxy-1-oxo-2-indanecarboxylate, methyl 2-difluoromethyl-5-methoxy-1-oxo-2-indanecarboxylate, ethyl 2-difluoro Methyl-5-methoxy-1- Xo-2-indanecarboxylate, n-propyl 2-difluoromethyl-5-methoxy-1-oxo-2-indanecarboxylate, iso-propyl 2-difluoromethyl-5-methoxy-1-oxo-2-indanecarboxylate , N-butyl 2-difluoromethyl-5-methoxy-1-oxo-2-indanecarboxylate, iso-butyl 2-difluoromethyl-5-methoxy-1-oxo-2-indanecarboxylate, tert-butyl 2 -Difluoromethyl-5-methoxy-1-oxo-2-indanecarboxylate, allyl 2-difluoromethyl-5-methoxy-1-oxo-2-indanecarboxylate, benzyl 2-difluoromethyl-5-methoxy-1- Oxo-2-indanecarboxyler Methyl 2-difluoromethyl-6-methoxy-1-oxo-2-indanecarboxylate, ethyl 2-difluoromethyl-6-methoxy-1-oxo-2-indanecarboxylate, n-propyl 2-difluoromethyl-6 -Methoxy-1-oxo-2-indanecarboxylate, iso-propyl 2-difluoromethyl-6-methoxy-1-oxo-2-indanecarboxylate, n-butyl 2-difluoromethyl-6-methoxy-1-oxo 2-indanecarboxylate, iso-butyl 2-difluoromethyl-6-methoxy-1-oxo-2-indanecarboxylate, tert-butyl 2-difluoromethyl-6-methoxy-1-oxo-2-indanecarboxylate Allyl 2-difluoromethyl-6- Methoxy-1-oxo-2-indanecarboxylate, benzyl 2-difluoromethyl-6-methoxy-1-oxo-2-indanecarboxylate, methyl 2-difluoromethyl-7-methoxy-1-oxo-2-indanecarboxylate , Ethyl 2-difluoromethyl-7-methoxy-1-oxo-2-indanecarboxylate, n-propyl 2-difluoromethyl-7-methoxy-1-oxo-2-indanecarboxylate, iso-propyl 2-difluoro Methyl-7-methoxy-1-oxo-2-indanecarboxylate, n-butyl 2-difluoromethyl-7-methoxy-1-oxo-2-indanecarboxylate, iso-butyl 2-difluoromethyl-7-methoxy- 1-oxo-2-indanecarboxy Tert-butyl 2-difluoromethyl-7-methoxy-1-oxo-2-indanecarboxylate, allyl 2-difluoromethyl-7-methoxy-1-oxo-2-indanecarboxylate, benzyl 2-difluoromethyl- 7-methoxy-1-oxo-2-indanecarboxylate, methyl 2-difluoromethyl-4,5-dimethoxy-1-oxo-2-indanecarboxylate, ethyl 2-difluoromethyl-4,5-dimethoxy-1- Oxo-2-indanecarboxylate, n-propyl 2-difluoromethyl-4,5-dimethoxy-1-oxo-2-indanecarboxylate, iso-propyl 2-difluoromethyl-4,5-dimethoxy-1-oxo- 2-indanecarboxylate, n-butyl 2 Difluoromethyl-4,5-dimethoxy-1-oxo-2-indanecarboxylate, iso-butyl 2-difluoromethyl-4,5-dimethoxy-1-oxo-2-indanecarboxylate, tert-butyl 2-difluoromethyl -4,5-dimethoxy-1-oxo-2-indanecarboxylate, allyl 2-difluoromethyl-4,5-dimethoxy-1-oxo-2-indanecarboxylate, benzyl 2-difluoromethyl-4,5-dimethoxy -1-oxo-2-indanecarboxylate, methyl 2-difluoromethyl-5,6-dimethoxy-1-oxo-2-indanecarboxylate, ethyl 2-difluoromethyl-5,6-dimethoxy-1-oxo-2 -Indan carboxylate, n-propyl 2-diph Oromethyl-5,6-dimethoxy-1-oxo-2-indanecarboxylate, iso-propyl 2-difluoromethyl-5,6-dimethoxy-1-oxo-2-indanecarboxylate, n-butyl 2-difluoromethyl- 5,6-dimethoxy-1-oxo-2-indanecarboxylate, iso-butyl 2-difluoromethyl-5,6-dimethoxy-1-oxo-2-indanecarboxylate, tert-butyl 2-difluoromethyl-5 6-dimethoxy-1-oxo-2-indanecarboxylate, allyl 2-difluoromethyl-5,6-dimethoxy-1-oxo-2-indanecarboxylate, benzyl 2-difluoromethyl-5,6-dimethoxy-1- Oxo-2-indanecarboxylate, methyl 2-di Ruoromechiru 6,7-dimethoxy-1-oxo-2-indane-carboxylate, ethyl 2-difluoromethyl
Methyl-6,7-dimethoxy-1-oxo-2-indanecarboxylate, n-propyl 2-difluoromethyl-6,7-dimethoxy-1-oxo-2-indanecarboxylate, iso-propyl 2-difluoromethyl- 6,7-dimethoxy-1-oxo-2-indanecarboxylate, n-butyl 2-difluoromethyl-6,7-dimethoxy-1-oxo-2-indanecarboxylate, iso-butyl 2-difluoromethyl-6 7-dimethoxy-1-oxo-2-indanecarboxylate, tert-butyl 2-difluoromethyl-6,7-dimethoxy-1-oxo-2-indanecarboxylate, allyl 2-difluoromethyl-6,7-dimethoxy- 1-oxo-2-indanecarboxylate, benzyl 2-di Fluoromethyl-6,7-dimethoxy-1-oxo-2-indanecarboxylate, methyl 2-difluoromethyl-4,6-dimethoxy-1-oxo-2-indanecarboxylate, ethyl 2-difluoromethyl-4,6 -Dimethoxy-1-oxo-2-indanecarboxylate, n-propyl 2-difluoromethyl-4,6-dimethoxy-1-oxo-2-indanecarboxylate, iso-propyl 2-difluoromethyl-4,6-dimethoxy -1-oxo-2-indanecarboxylate, n-butyl 2-difluoromethyl-4,6-dimethoxy-1-oxo-2-indanecarboxylate, iso-butyl 2-difluoromethyl-4,6-dimethoxy-1 -Oxo-2-indanecarboxylate, tert-butyl 2-difluoromethyl-4,6-dimethoxy-1-oxo-2-indanecarboxylate, allyl 2-difluoromethyl-4,6-dimethoxy-1-oxo-2-indanecarboxylate, benzyl 2-difluoromethyl-4 , 6-Dimethoxy-1-oxo-2-indanecarboxylate, methyl 2-difluoromethyl-5,7-dimethoxy-1-oxo-2-indanecarboxylate, ethyl 2-difluoromethyl-5,7-dimethoxy-1 -Oxo-2-indanecarboxylate, n-propyl 2-difluoromethyl-5,7-dimethoxy-1-oxo-2-indanecarboxylate, iso-propyl 2-difluoromethyl-5,7-dimethoxy-1-oxo 2-indanecarboxylate, n-butyl 2-difur Oromethyl-5,7-dimethoxy-1-oxo-2-indanecarboxylate, iso-butyl 2-difluoromethyl-5,7-dimethoxy-1-oxo-2-indanecarboxylate, tert-butyl 2-difluoromethyl- 5,7-dimethoxy-1-oxo-2-indanecarboxylate, allyl 2-difluoromethyl-5,7-dimethoxy-1-oxo-2-indanecarboxylate, benzyl 2-difluoromethyl-5,7-dimethoxy- 1-oxo-2-indanecarboxylate, methyl 2-difluoromethyl-4-fluoro-1-oxo-2-indanecarboxylate, ethyl 2-difluoromethyl-4-fluoro-1-oxo-2-indanecarboxylate, n-propyl 2-difluoromethyl-4-fur Fluoro-1-oxo-2-indanecarboxylate, iso-propyl 2-difluoromethyl-4-fluoro-1-oxo-2-indanecarboxylate, n-butyl 2-difluoromethyl-4-fluoro-1-oxo- 2-indanecarboxylate, iso-butyl 2-difluoromethyl-4-fluoro-1-oxo-2-indanecarboxylate, tert-butyl 2-difluoromethyl-4-fluoro-1-oxo-2-indanecarboxylate, Allyl 2-difluoromethyl-4-fluoro-1-oxo-2-indanecarboxylate, benzyl 2-difluoromethyl-4-fluoro-1-oxo-2-indanecarboxylate, methyl 2-difluoromethyl-5-fluoro- 1-oxo-2-indanecarboki Sylate, ethyl 2-difluoromethyl-5-fluoro-1-oxo-2-indanecarboxylate, n-propyl 2-difluoromethyl-5-fluoro-1-oxo-2-indanecarboxylate, iso-propyl 2-difluoro Methyl-5-fluoro-1-oxo-2-indanecarboxylate, n-butyl 2-difluoromethyl-5-fluoro-1-oxo-2-indanecarboxylate, iso-butyl 2-difluoromethyl-5-fluoro- 1-oxo-2-indanecarboxylate, tert-butyl 2-difluoromethyl-5-fluoro-1-oxo-2-indanecarboxylate, allyl 2-difluoromethyl-5-fluoro-1-oxo-2-indanecarboxylate Rato, benzyl 2-difluorome 5-fluoro-1-oxo-2-indanecarboxylate, methyl 2-difluoromethyl-6-fluoro-1-oxo-2-indanecarboxylate, ethyl 2-difluoromethyl-6-fluoro-1-oxo- 2-indanecarboxylate, n-propyl 2-difluoromethyl-6-fluoro-1-oxo-2-indanecarboxylate, iso-propyl 2-difluoromethyl-6-fluoro-1-oxo-2-indanecarboxylate, n-butyl 2-difluoromethyl-6-fluoro-1-oxo-2-indanecarboxylate, iso-butyl 2-difluoromethyl-6-fluoro-1-oxo-2-indanecarboxylate, tert-butyl 2-difluoro Methyl-6-fluoro-1-oxo-2- Ndancarboxylate, allyl 2-difluoromethyl-6-fluoro-1-oxo-2-indanecarboxylate, benzyl 2-difluoromethyl-6-fluoro-1-oxo-2-indanecarboxylate, methyl 2-difluoromethyl -7-fluoro-1-oxo-2-indanecarboxylate, ethyl 2-difluoromethyl-7-fluoro-1-oxo-2-indanecarboxylate, n-propyl 2-difluoromethyl-7-fluoro-1-oxo 2-indanecarboxylate, iso-propyl 2-difluoromethyl-7-fluoro-1-oxo-2-indanecarboxylate, n-butyl 2-difluoromethyl-7-fluoro-1-oxo-2-indanecarboxylate , Iso-butyl 2-difluo Methyl-7-fluoro-1-oxo-2-indanecarboxylate, tert-butyl 2-difluoromethyl-7-fluoro-1-oxo-2-indanecarboxylate, allyl 2-difluoromethyl-7-fluoro-1- Oxo-2-indanecarboxylate, benzyl 2-difluoromethyl-7-fluoro-1-oxo-2-indanecarboxylate, methyl 2-difluoromethyl-4-chloro-1-oxo-2-indanecarboxylate, ethyl 2 -Difluoromethyl-4-chloro-1-oxo-2-indanecarboxylate, n-propyl 2-difluoromethyl-4-chloro-1-oxo-2-indanecarboxylate, iso-propyl 2-difluoromethyl-4- Chloro-1-oxo-2-indanecarbo Sylate, n-butyl 2-difluoromethyl-4-chloro-1-oxo-2-indanecarboxylate, iso-butyl 2-difluoromethyl-4-chloro-1-oxo-2-indanecarboxylate, tert-butyl 2 -Difluoromethyl-4-chloro-1-oxo-2-indanecarboxylate, allyl 2-difluoromethyl-4-chloro-1-oxo-2-indanecarboxylate, benzyl 2-difluoromethyl-4-chloro-1- Oxo-2-indanecarboxylate, methyl 2-difluoromethyl-5-chloro-1-oxo-2-indanecarboxylate, ethyl 2-difluoromethyl-5-chloro-1-oxo-2-indanecarboxylate, n- Propyl 2-difluoromethyl-5-chloro-1-o Xo-2-indanecarboxylate, iso-propyl 2-difluoromethyl-5-chloro-1-oxo-2-indanecarboxylate, n-butyl 2-difluoromethyl-5-chloro-1-oxo-2-indanecarboxyl Lato, iso-butyl 2-difluoromethyl-5-chloro-1-oxo-2-indanecarboxylate, tert-butyl 2-difluoromethyl-5-chloro-1-oxo-2-indanecarboxylate, allyl 2-difluoro Methyl-5-chloro-1-oxo-2-indanecarboxylate, benzyl 2-difluoromethyl-5-chloro-1-oxo-2-indanecarboxylate, methyl 2-difluoromethyl-6-chloro-1-oxo- 2-indanecarboxylate, ethyl 2-difur Romethyl-6-chloro-1-oxo-2-indanecarboxylate, n-propyl 2-difluoromethyl-6-chloro-1-oxo-2-indanecarboxylate, iso-propyl 2-difluoromethyl-6-chloro- 1-oxo-2-indanecarboxylate, n-butyl 2-difluoromethyl-6-chloro-1-oxo-2-indanecarboxylate, iso-butyl 2-difluoromethyl-6-chloro-1-oxo-2- Indanecarboxylate, tert-butyl 2-difluoromethyl-6-chloro-1-oxo-2-indanecarboxylate, allyl 2-difluoromethyl-6-chloro-1-oxo-2-indanecarboxylate, benzyl 2-difluoro Methyl-6-chloro-1-oxo-2-indane Ruxoxylate, methyl 2-difluoromethyl-7-chloro-1-oxo-2-indanecarboxylate, ethyl 2-difluoromethyl-7-chloro-1-oxo-2-indanecarboxylate, n-propyl 2-difluoromethyl- 7-chloro-1-oxo-2-indanecarboxylate, iso-propyl 2-difluoromethyl-7-chloro-1-oxo-2-indanecarboxylate, n-butyl 2-difluoromethyl-7-chloro-1- Oxo-2-indanecarboxylate, iso-butyl 2-difluoromethyl-7-chloro-1-oxo-2-indanecarboxylate, tert-butyl 2-difluoromethyl-7-chloro-1-oxo-2-indanecarboxylate Rato, allyl 2-difluoromethyl-7- Loro-1-oxo-2-indanecarboxylate, benzyl 2-difluoromethyl-7-chloro-1-oxo-2-indanecarboxylate, methyl 2-difluoromethyl-4-bromo-1-oxo-2-indanecarboxylate , Ethyl 2-difluoromethyl-4-bromo-1-oxo-2-indanecarboxylate, n-propyl 2-difluoromethyl-4-bromo-1-oxo-2-indanecarboxylate, iso-propyl 2-difluoro Methyl-4-bromo-1-oxo-2-indanecarboxylate, n-butyl 2-difluoromethyl-4-bromo-1-oxo-2-indanecarboxylate, iso-butyl 2-difluoromethyl-4-bromo- 1-oxo-2-indanecarboxylate, tert Butyl 2-difluoromethyl-4-bromo-1-oxo-2-indanecarboxylate, allyl 2-difluoromethyl-4-bromo-1-oxo-2-indanecarboxylate, benzyl 2-difluoromethyl-4-bromo- 1-oxo-2-indanecarboxylate, methyl 2-difluoromethyl-5-bromo-1-oxo-2-indanecarboxylate, ethyl 2-difluoromethyl-5-bromo-1-oxo-2-indanecarboxylate, n-propyl 2-difluoromethyl-5-bromo-1-oxo-2-indanecarboxylate, iso-propyl 2-difluoromethyl-5-bromo-1-oxo-2-indanecarboxylate, n-butyl 2-difluoro Methyl-5-bromo-1-oxo-2-indane Carboxylate, iso-butyl 2-difluoromethyl-5-bromo-1-oxo-2-indanka
Ruboxylate, tert-butyl 2-difluoromethyl-5-bromo-1-oxo-2-indanecarboxylate, allyl 2-difluoromethyl-5-bromo-1-oxo-2-indanecarboxylate, benzyl 2-difluoromethyl- 5-bromo-1-oxo-2-indanecarboxylate, methyl 2-difluoromethyl-6-bromo-1-oxo-2-indanecarboxylate, ethyl 2-difluoromethyl-6-bromo-1-oxo-2- Indanecarboxylate, n-propyl 2-difluoromethyl-6-bromo-1-oxo-2-indanecarboxylate, iso-propyl 2-difluoromethyl-6-bromo-1-oxo-2-indanecarboxylate, n- Butyl 2-difluoromethyl-6-bromo 1-oxo-2-indanecarboxylate, iso-butyl 2-difluoromethyl-6-bromo-1-oxo-2-indanecarboxylate, tert-butyl 2-difluoromethyl-6-bromo-1-oxo-2- Indanecarboxylate, allyl 2-difluoromethyl-6-bromo-1-oxo-2-indanecarboxylate, benzyl 2-difluoromethyl-6-bromo-1-oxo-2-indanecarboxylate, methyl 2-difluoromethyl- 7-bromo-1-oxo-2-indanecarboxylate, ethyl 2-difluoromethyl-7-bromo-1-oxo-2-indanecarboxylate, n-propyl 2-difluoromethyl-7-bromo-1-oxo- 2-Indanecarboxylate, iso-propyl 2 Difluoromethyl-7-bromo-1-oxo-2-indanecarboxylate, n-butyl 2-difluoromethyl-7-bromo-1-oxo-2-indanecarboxylate, iso-butyl 2-difluoromethyl-7-bromo -1-oxo-2-indanecarboxylate, tert-butyl 2-difluoromethyl-7-bromo-1-oxo-2-indanecarboxylate, allyl 2-difluoromethyl-7-bromo-1-oxo-2-indane Examples thereof include carboxylate and benzyl 2-difluoromethyl-7-bromo-1-oxo-2-indanecarboxylate.
本発明の一般式(3)で表されるジフルオロメチル基含有化合物の内、マロノニトリル誘導体としては、1−ジシアノメチリデン−2−ジフルオロメチル−1,2,3,4−テトラヒドロナフタレン、1−ジシアノメチリデン−2−ジフルオロメチル−2−メチル−1,2,3,4−テトラヒドロナフタレン、1−ジシアノメチリデン−2−ジフルオロメチル−3−メチル−1,2,3,4−テトラヒドロナフタレン、1−ジシアノメチリデン−2−ジフルオロメチル−4−メチル−1,2,3,4−テトラヒドロナフタレン、1−ジシアノメチリデン−2−ジフルオロメチル−5−メトキシ−1,2,3,4−テトラヒドロナフタレン、1−ジシアノメチリデン−2−ジフルオロメチル−6−メトキシ−1,2,3,4−テトラヒドロナフタレン、1−ジシアノメチリデン−2−ジフルオロメチル−7−メトキシ−1,2,3,4−テトラヒドロナフタレン、1−ジシアノメチリデン−2−ジフルオロメチル−8−メトキシ−1,2,3,4−テトラヒドロナフタレン、1−ジシアノメチリデン−2−ジフルオロメチル−5,6−ジメトキシ−1,2,3,4−テトラヒドロナフタレン、1−ジシアノメチリデン−2−ジフルオロメチル−6,7−ジメトキシ−1,2,3,4−テトラヒドロナフタレン、1−ジシアノメチリデン−2−ジフルオロメチル−7,8−ジメトキシ−1,2,3,4−テトラヒドロナフタレン、1−ジシアノメチリデン−2−ジフルオロメチル−5,7−ジメトキシ−1,2,3,4−テトラヒドロナフタレン、1−ジシアノメチリデン−2−ジフルオロメチル−6,8−ジメトキシ−1,2,3,4−テトラヒドロナフタレン、4−ジシアノメチリデン−2−ジフルオロメチルクロマン、4−ジシアノメチリデン−2−ジフルオロメチルチオクロマン、5−ジシアノメチリデン−2−ジフルオロメチル−6,7,8,9−テトラヒドロ−5H−ベンゾシクロヘプテン、ジシアノメチリデン−2−ジフルオロメチルシクロヘキサン、1−ジシアノメチリデン−2−ジフルオロメチル−1−フェニルブタン、1−ジシアノメチリデン−2−ジフルオロメチル−3−メチル−1−フェニルブタン、1−ジシアノメチリデン−2−ジフルオロメチル−2−フェニルプロパン、1−ジシアノメチリデン−2−ジフルオロメチル−1−(4−メトキシフェニル)プロパン、1−ジシアノメチリデン−2−ジフルオロメチル−1−(4−ブロモフェニル)プロパン、1−ジシアノメチリデン−2−ジフルオロメチル−1−(6−メトキシ−2−ナフチル)プロパン、1−ジシアノメチリデン−2−ジフルオロメチル−1−(4−メトキシフェニル)エタン、1−ジシアノメチリデン−2−ジフルオロメチル−1−(4−ブロモフェニル)エタン、1−ジシアノメチリデン−2−ジフルオロメチル−1−(6−メトキシ−2−ナフチル)エタン等が挙げられる。 Of the difluoromethyl group-containing compounds represented by the general formula (3) of the present invention, examples of the malononitrile derivative include 1-dicyanomethylidene-2-difluoromethyl-1,2,3,4-tetrahydronaphthalene, 1-dicyano. Methylidene-2-difluoromethyl-2-methyl-1,2,3,4-tetrahydronaphthalene, 1-dicyanomethylidene-2-difluoromethyl-3-methyl-1,2,3,4-tetrahydronaphthalene, 1 -Dicyanomethylidene-2-difluoromethyl-4-methyl-1,2,3,4-tetrahydronaphthalene, 1-dicyanomethylidene-2-difluoromethyl-5-methoxy-1,2,3,4-tetrahydronaphthalene 1-dicyanomethylidene-2-difluoromethyl-6-methoxy-1,2,3,4-tetrahydronaphth 1-dicyanomethylidene-2-difluoromethyl-7-methoxy-1,2,3,4-tetrahydronaphthalene, 1-dicyanomethylidene-2-difluoromethyl-8-methoxy-1,2,3,4 -Tetrahydronaphthalene, 1-dicyanomethylidene-2-difluoromethyl-5,6-dimethoxy-1,2,3,4-tetrahydronaphthalene, 1-dicyanomethylidene-2-difluoromethyl-6,7-dimethoxy-1 , 2,3,4-tetrahydronaphthalene, 1-dicyanomethylidene-2-difluoromethyl-7,8-dimethoxy-1,2,3,4-tetrahydronaphthalene, 1-dicyanomethylidene-2-difluoromethyl-5 , 7-dimethoxy-1,2,3,4-tetrahydronaphthalene, 1-dicyanomethylidene-2-difur Romethyl-6,8-dimethoxy-1,2,3,4-tetrahydronaphthalene, 4-dicyanomethylidene-2-difluoromethylchroman, 4-dicyanomethylidene-2-difluoromethylthiochroman, 5-dicyanomethylidene-2 -Difluoromethyl-6,7,8,9-tetrahydro-5H-benzocycloheptene, dicyanomethylidene-2-difluoromethylcyclohexane, 1-dicyanomethylidene-2-difluoromethyl-1-phenylbutane, 1-dicyano Methylidene-2-difluoromethyl-3-methyl-1-phenylbutane, 1-dicyanomethylidene-2-difluoromethyl-2-phenylpropane, 1-dicyanomethylidene-2-difluoromethyl-1- (4-methoxy) Phenyl) propane, 1-dicyanomethylidene-2- Difluoromethyl-1- (4-bromophenyl) propane, 1-dicyanomethylidene-2-difluoromethyl-1- (6-methoxy-2-naphthyl) propane, 1-dicyanomethylidene-2-difluoromethyl-1- (4-methoxyphenyl) ethane, 1-dicyanomethylidene-2-difluoromethyl-1- (4-bromophenyl) ethane, 1-dicyanomethylidene-2-difluoromethyl-1- (6-methoxy-2-naphthyl) ) Ethane and the like.
本発明の製造方法としては、一般式(1)で表されるケトン類又はマロノニトリル誘導体と、フェニル(2,3,4,5−テトラメチルフェニル)ブロモジフルオロメチルチオフェニウム テトラフルオロボラート、又はフェニル(2,3,4,5−テトラメチルフェニル)ブロモジフルオロメチルチオフェニウム トリフルオロメタンスルホナートを塩基存在下、反応させる。 The production method of the present invention includes ketones or malononitrile derivatives represented by the general formula (1), phenyl (2,3,4,5-tetramethylphenyl) bromodifluoromethylthiophenium tetrafluoroborate, or phenyl (2,3,4,5-Tetramethylphenyl) bromodifluoromethylthiophenium trifluoromethanesulfonate is reacted in the presence of a base.
本発明の製造において適用可能な塩基としては、特に規定は無いが、具体的には例えば、トリエチルアミン、4−ジメチルアミノピリジン(以下DMAPと略す)、1,1,3,3−テトラメチルグアニジン(以下TMGと略す)、1,8−ジアザビシクロ[5.4.0]−7−ウンデセン(以下DBUと略す)、1,5,7−トリアザビシクロ[4.4.0]デカ−5−エン(以下TBDと略す)、2,8,9−トリイソプロピル−2,5,8,9−テトラアザ−1−フォスファビシクロ[3.3.3]ウンデセン(以下Verkade Superbase(iPr)と略す)、1,1,3,3−テトラメチルブチルイミノ−トリス(ジメチルアミノ)フォスフォラン(以下P1-Octと略す)、tert−ブチルイミノ−トリス(ジメチルアミノ)フォスフォラン(以下P1-tBuと略す)、2−tert−ブチルイミノ−2−ジエチルアミノ−1,3−ジメチルペルヒドロ−1,3,2−ジアザホスホリン(以下BEMPと略す)、tert−ブチルイミノ−トリス(ピロリジノ)フォスフォラン(以下BTPPと略す)、N'''−[N−エチル−P,P−ビス(ジメチルアミノ)フォスフィニミル]−N,N,N',N',N'',N''−ヘキサメチルフォスフォリミジクトリアミド(以下P2−Etと略す)、1−tert−ブチル−4,4,4−トリス(ジメチルアミノ)−2,2−ビス[トリス(ジメチルアミノ)ホスホラニリデンアミノ]−2λ5,4λ5−カテナジ(以下P4-tBuと略す)等の有機塩基、n−ブチルリチウム、リチウム ヘキサメチルジシラジド、炭酸カリウム、カリウム tert−ブトキシド、炭酸セシウム等の無機塩基が挙げられ、反応に具する一般式(1)で表されるケトン類又はマロノニトリル誘導体に対して、1.0〜3.0モル量使用する。 The base that can be used in the production of the present invention is not particularly limited. Specifically, for example, triethylamine, 4-dimethylaminopyridine (hereinafter abbreviated as DMAP), 1,1,3,3-tetramethylguanidine ( Hereinafter abbreviated as TMG), 1,8-diazabicyclo [5.4.0] -7-undecene (hereinafter abbreviated as DBU), 1,5,7-triazabicyclo [4.4.0] dec-5-ene. (hereinafter referred to as TBD), 2,8,9- triisopropyl -2,5,8,9- tetraaza-1-phosphate Fabiano cyclo [3.3.3] (hereinafter referred to as Verkade Superbase (i Pr)) undecene , 1,1,3,3-tetramethylbutyl imino - (hereinafter referred to as P 1 -OCT) tris (dimethylamino) phosphorane, tert- butylimino - tris (di Chiruamino) phosphorane (hereinafter P 1 - t Bu abbreviated), abbreviated as 2-tert-butylimino-2-diethylamino-1,3-dimethyl-perhydro-1,3,2 Jiazahosuhorin (hereinafter BEMP), tert-butylimino -Tris (pyrrolidino) phosphorane (hereinafter abbreviated as BTPP), N '''-[N-ethyl-P, P-bis (dimethylamino) phosphinyl] -N, N, N ′, N ′, N ′ ', N ″ -hexamethylphosphorimidic triamide (hereinafter abbreviated as P 2 -Et), 1-tert-butyl-4,4,4-tris (dimethylamino) -2,2-bis [tris (dimethyl amino) phosphoranylidene two isopropylidene amino] -2λ 5, 4λ 5 - Katenaji (hereinafter P 4 - abbreviated as t Bu) organic bases such, n- butyl lithium, lithium hexamethyldisilazide Inorganic bases such as potassium carbonate, potassium tert-butoxide, cesium carbonate and the like are used, and 1.0 to 3.0 molar amounts are used with respect to the ketones or malononitrile derivatives represented by the general formula (1) included in the reaction. To do.
本発明の製造において、使用するフェニル(2,3,4,5−テトラメチルフェニル)ブロモジフルオロメチルチオフェニウム テトラフルオロボラート、又はフェニル(2,3,4,5−テトラメチルフェニル)ブロモジフルオロメチルチオフェニウム トリフルオロメタンスルホナートの使用量としては、一般式(1)で表されるケトン類又はマロノニトリル誘導体に対して、0.4〜1.2モル量使用する。 Phenyl (2,3,4,5-tetramethylphenyl) bromodifluoromethylthiophenium tetrafluoroborate or phenyl (2,3,4,5-tetramethylphenyl) bromodifluoromethylthio used in the production of the present invention The amount of fenium trifluoromethanesulfonate used is 0.4 to 1.2 moles with respect to the ketone or malononitrile derivative represented by the general formula (1).
本発明の製造に適用可能な溶剤としては、反応に不活性なものであれは特に規定はないが、具体的には例えば、ベンゼン、トルエン、キレレン、エチルベンゼン、ベンゾトリフルオリド等の芳香族炭化水素系溶剤、ジクロロメタン、1,2−ジクロロエタン等のハロゲン化炭化水素系溶剤、ジエチルエーテル、ジイソプロピルエーテル、メチル tert−ブチルエーテル等のエーテル系溶剤、N,N−ジメチルホルムアミド、N,N−ジメチルアセトアミド、ジメチルスルホキシド等の非プロトン性極性溶剤、メタノール、エタノール、イソプロパノール等のアルコール系溶剤、アセトニトリル、プロピオニトリル等のニトリル系溶剤等が挙げられ、反応に具する一般式(1)で表されるケトン類又はマロノニトリル誘導体に対して、5〜20ml/mmol使用する。 Solvents applicable to the production of the present invention are not particularly limited as long as they are inert to the reaction. Specifically, for example, aromatic hydrocarbons such as benzene, toluene, xylene, ethylbenzene, benzotrifluoride, etc. Solvents, halogenated hydrocarbon solvents such as dichloromethane and 1,2-dichloroethane, ether solvents such as diethyl ether, diisopropyl ether and methyl tert-butyl ether, N, N-dimethylformamide, N, N-dimethylacetamide, dimethyl Examples include aprotic polar solvents such as sulfoxide, alcohol solvents such as methanol, ethanol, and isopropanol, and nitrile solvents such as acetonitrile and propionitrile, and ketones represented by the general formula (1) for reaction. Or 5 to 5 for the malononitrile derivative 0ml / mmol use.
本発明の反応温度及び時間としては、使用する基質、塩基及び溶剤の種類により異なるが、通常、−80〜0℃の温度範囲で、0.5〜6時間である。 The reaction temperature and time of the present invention vary depending on the type of substrate, base and solvent used, but are usually in the temperature range of −80 to 0 ° C. and 0.5 to 6 hours.
本発明の製造の後処理としては、一般的な衆知の方法で実施可能で、例えば、飽和の塩化アンモニム水溶液で中和の後、抽出、乾燥、濃縮しても良いし、また、直接反応液を濃縮して粗製物を得ても良い。得られた粗製物は、シリカゲルカラムクロマトグラフィー等により容易に精製可能で、高純度のジフルオロメチル基含有化合物を得る。 The post-treatment of the production of the present invention can be carried out by a general well-known method. For example, it may be neutralized with a saturated aqueous ammonium chloride solution, extracted, dried, concentrated, or directly reacted. To obtain a crude product. The obtained crude product can be easily purified by silica gel column chromatography or the like to obtain a high-purity difluoromethyl group-containing compound.
以下実施例により本発明を具体的に説明するが、本発明はこれらの実施例のみに限定されるものではない。 EXAMPLES The present invention will be specifically described below with reference to examples, but the present invention is not limited only to these examples.
なお、本発明で使用する有機塩基について、構造を下記に例示した。 In addition, about the organic base used by this invention, the structure was illustrated below.
実施例1 1−ジシアノメチリデン−2−ジフルオロメチル−1,2,3,4−テトラヒドロナフタレンの調製Example 1 Preparation of 1-dicyanomethylidene-2-difluoromethyl-1,2,3,4-tetrahydronaphthalene
アルゴンガス気流下、−20℃に冷却した1−ジシアノメチリデン−1,2,3,4−テトラヒドロナフタレン(38.8mg、0.2mmol)のアセトニトリル(2ml)溶液に、P1-tBu(46.9mg、0.2mmol)を加え、20分攪拌した後に、−75℃以下に冷却した。次いでこれに、フェニル(2,3,4,5−テトラメチルフェニル)ブロモジフルオロメチルチオフェニウム テトラフルオロボラート(45.9mg、0.1mmol)を添加した後、−42℃で1時間反応を行った。
反応終了後、室温に戻し、減圧下溶剤を留去し得られた残渣を19F−NMRにより定量したところ、目的物の1−ジシアノメチリデン−2−ジフルオロメチル−1,2,3,4−テトラヒドロナフタレン(16.4mg、0.067mmol)を得た(収率67%)。なお、副生物として1−ジシアノメチリデン−2−(ブロモジフルオロメチル)−1,2,3,4−テトラヒドロナフタレン(3.2mg、0.01mmol)が生成していた。
To a solution of 1-dicyanomethylidene-1,2,3,4-tetrahydronaphthalene (38.8 mg, 0.2 mmol) in acetonitrile (2 ml) cooled to −20 ° C. under an argon gas stream, P 1 -t Bu ( (46.9 mg, 0.2 mmol) was added, and the mixture was stirred for 20 minutes, and then cooled to -75 ° C or lower. Next, phenyl (2,3,4,5-tetramethylphenyl) bromodifluoromethylthiophenium tetrafluoroborate (45.9 mg, 0.1 mmol) was added thereto, followed by reaction at -42 ° C. for 1 hour. It was.
After completion of the reaction, the temperature was returned to room temperature, and the residue obtained by distilling off the solvent under reduced pressure was quantified by 19 F-NMR. As a result, 1-dicyanomethylidene-2-difluoromethyl-1,2,3,4 was obtained. -Tetrahydronaphthalene (16.4 mg, 0.067 mmol) was obtained (yield 67%). In addition, 1-dicyanomethylidene-2- (bromodifluoromethyl) -1,2,3,4-tetrahydronaphthalene (3.2 mg, 0.01 mmol) was produced as a by-product.
実施例2 1−ジシアノメチリデン−2−ジフルオロメチル−1,2,3,4−テトラヒドロナフタレンの調製
実施例1のフェニル(2,3,4,5−テトラメチルフェニル)ブロモジフルオロメチルチオフェニウム テトラフルオロボラート(45.9mg、0.1mmol)に替えてフェニル(2,3,4,5−テトラメチルフェニル)ブロモジフルオロメチルチオフェニウム トリフルオロメタンスルホナート(52.1mg、0.1mmol)を用いた以外、実施例1と同じ方法で反応を行った結果、目的物の1−ジシアノメチリデン−2−ジフルオロメチル−1,2,3,4−テトラヒドロナフタレン(18.8mg、0.077mmol)を得た(収率77%)。なお、副生物として1−ジシアノメチリデン−2−(ブロモジフルオロメチル)−1,2,3,4−テトラヒドロナフタレン(2.9mg、0.009mmol)が生成していた。
Example 2 Preparation of 1-dicyanomethylidene-2-difluoromethyl-1,2,3,4-tetrahydronaphthalene Phenyl (2,3,4,5-tetramethylphenyl) bromodifluoromethylthiophenium tetra of Example 1 Instead of fluoroborate (45.9 mg, 0.1 mmol), phenyl (2,3,4,5-tetramethylphenyl) bromodifluoromethylthiophenium trifluoromethanesulfonate (52.1 mg, 0.1 mmol) was used. Except for the above, the reaction was carried out in the same manner as in Example 1, and as a result, 1-dicyanomethylidene-2-difluoromethyl-1,2,3,4-tetrahydronaphthalene (18.8 mg, 0.077 mmol) as the target product was obtained. (Yield 77%). In addition, 1-dicyanomethylidene-2- (bromodifluoromethyl) -1,2,3,4-tetrahydronaphthalene (2.9 mg, 0.009 mmol) was produced as a by-product.
実施例3 1−ジシアノメチリデン−2−ジフルオロメチル−1,2,3,4−テトラヒドロナフタレンの調製
アルゴンガス気流下、−20℃に冷却した1−ジシアノメチリデン−1,2,3,4−テトラヒドロナフタレン(38.8mg、0.2mmol)のジクロロメタン(2ml)溶液に、P1-tBu(46.9mg、0.2mmol)を加え、20分攪拌した後に、−75℃以下に冷却した。次いでこれに、フェニル(2,3,4,5−テトラメチルフェニル)ブロモジフルオロメチルチオフェニウム トリフルオロメタンスルホナート(52.1mg、0.1mmol)を添加した後、−75℃で1時間反応を行った。
反応終了後、室温に戻し、減圧下溶剤を留去し得られた残渣を19F−NMRにより定量したところ、目的物の1−ジシアノメチリデン−2−ジフルオロメチル−1,2,3,4−テトラヒドロナフタレン(19.8mg、0.081mmol)を得た(収率81%)。なお、副生物の1−ジシアノメチリデン−2−(ブロモジフルオロメチル)−1,2,3,4−テトラヒドロナフタレンの生成は認められなかった。
Example 3 Preparation of 1-dicyanomethylidene-2-difluoromethyl-1,2,3,4-tetrahydronaphthalene 1-Dicyanomethylidene-1,2,3,4 cooled to −20 ° C. under an argon gas stream -To a solution of tetrahydronaphthalene (38.8 mg, 0.2 mmol) in dichloromethane (2 ml) was added P 1 -t Bu (46.9 mg, 0.2 mmol), stirred for 20 minutes, and then cooled to -75 ° C or lower. . Next, phenyl (2,3,4,5-tetramethylphenyl) bromodifluoromethylthiophenium trifluoromethanesulfonate (52.1 mg, 0.1 mmol) was added thereto, and the reaction was performed at −75 ° C. for 1 hour. It was.
After completion of the reaction, the temperature was returned to room temperature, and the residue obtained by distilling off the solvent under reduced pressure was quantified by 19 F-NMR. As a result, 1-dicyanomethylidene-2-difluoromethyl-1,2,3,4 was obtained. -Tetrahydronaphthalene (19.8 mg, 0.081 mmol) was obtained (yield 81%). The production of 1-dicyanomethylidene-2- (bromodifluoromethyl) -1,2,3,4-tetrahydronaphthalene as a by-product was not observed.
実施例4 1−ジシアノメチリデン−2−ジフルオロメチル−1,2,3,4−テトラヒドロナフタレンの調製
実施例3のP1-tBu(46.9mg、0.2mmol)をP1-tBu(28.1mg、0.12mmol)に替えた以外、実施例3と同じ方法で反応を行った結果、目的物の1−ジシアノメチリデン−2−ジフルオロメチル−1,2,3,4−テトラヒドロナフタレン(16.1mg、0.066mmol)を得た(収率66%)。なお、副生物の1−ジシアノメチリデン−2−(ブロモジフルオロメチル)−1,2,3,4−テトラヒドロナフタレンの生成は認められなかった。
Example 4 Preparation of 1-dicyanomethylidene-2-difluoromethyl-1,2,3,4-tetrahydronaphthalene P 1 -t Bu (46.9 mg, 0.2 mmol) of Example 3 was converted to P 1 -t Bu As a result of carrying out the reaction in the same manner as in Example 3 except that (28.1 mg, 0.12 mmol) was used, the target 1-dicyanomethylidene-2-difluoromethyl-1,2,3,4-tetrahydro Naphthalene (16.1 mg, 0.066 mmol) was obtained (yield 66%). The production of 1-dicyanomethylidene-2- (bromodifluoromethyl) -1,2,3,4-tetrahydronaphthalene as a by-product was not observed.
実施例5〜21 各種ジフルオロメチル基含有化合物の調製
アルゴンガス気流下、−20℃に冷却した表1中に示した基質(0.2mmol)のジクロロメタン(2ml)溶液に、P1-tBu(46.9mg、0.2mmol)を加え、20分攪拌した後に、−75℃以下に冷却した。次いでこれに、フェニル(2,3,4,5−テトラメチルフェニル)ブロモジフルオロメチルチオフェニウム トリフルオロメタンスルホナート(52.1mg、0.1mmol)を添加した後、−75℃で1時間反応を行った。
Examples 5 to 21 Preparation of various difluoromethyl group-containing compounds In a dichloromethane (2 ml) solution of the substrate (0.2 mmol) shown in Table 1 cooled to −20 ° C. under an argon gas stream, P 1 -t Bu ( (46.9 mg, 0.2 mmol) was added, and the mixture was stirred for 20 minutes, and then cooled to -75 ° C or lower. Next, phenyl (2,3,4,5-tetramethylphenyl) bromodifluoromethylthiophenium trifluoromethanesulfonate (52.1 mg, 0.1 mmol) was added thereto, and the reaction was performed at −75 ° C. for 1 hour. It was.
反応終了後、室温に戻し、減圧下溶剤を留去し得られた残渣を19F−NMRにより定量した収率を測定、さらに、シリカゲルカラムクロマトグラフィーにより精製し単離した収率を表1中に示した。 After completion of the reaction, the reaction mixture was returned to room temperature, the solvent was distilled off under reduced pressure, and the residue obtained was quantified by 19 F-NMR. The yield was further purified by silica gel column chromatography. It was shown to.
実施例22 メチル 1−オキソ−2−ジフルオロメチル−2−インダンカルボキシラートの調製
アルゴンガス気流下、−75℃に冷却したメチル 1−オキソ−2−インダンカルボキシラート(38.0mg、0.20mmol)のジクロロメタン(2ml)溶液に、P1−tBu(15.2mg、0.10mmol)を添加し、同温度で30分攪拌した。次いでこれに、フェニル(2,3,4,5−テトラメチルフェニル)ブロモジフルオロメチルチオフェニウム テトラフルオロボラート(45.9mg、0.1mmol)を添加した後、同温度で1時間反応を行った。
反応終了後、濃縮し残渣を得、19F−NMRによる収率は副生物のメチル 1−ジフルオロメトキシインデン−2−カルボキシラートを含め51%で、目的物と副生物の比は65/35であった。
Example 22 Preparation of methyl 1-oxo-2-difluoromethyl-2- indanecarboxylate Methyl 1-oxo-2-indanecarboxylate (38.0 mg, 0.20 mmol) cooled to −75 ° C. under an argon gas stream. Was added to a dichloromethane (2 ml) solution, and P 1 -tBu (15.2 mg, 0.10 mmol) was added thereto, followed by stirring at the same temperature for 30 minutes. Next, phenyl (2,3,4,5-tetramethylphenyl) bromodifluoromethylthiophenium tetrafluoroborate (45.9 mg, 0.1 mmol) was added thereto, followed by reaction at the same temperature for 1 hour. .
After completion of the reaction, the residue was concentrated to obtain a residue. The yield by 19 F-NMR was 51% including methyl 1-difluoromethoxyindene-2-carboxylate as a by-product, and the ratio of the desired product to the by-product was 65/35. there were.
実施例23 メチル 1−オキソ−2−ジフルオロメチル−2−インダンカルボキシラートの調製
実施例22のP1−tBu(15.2mg、0.10mmol)に替えて、P2-Et(33.9mg、0.10mmol)を用いた以外、実施例22と同じ反応操作を行い、粗製物を得た。得られた粗製物の19F−NMRによる収率は副生物のメチル 1−ジフルオロメトキシインデン−2−カルボキシラートを含め47%で、目的物と副生物の比は72/28であった。
Example 23 Preparation of methyl 1-oxo-2-difluoromethyl-2- indanecarboxylate In place of P 1 -tBu (15.2 mg, 0.10 mmol) of Example 22, P 2 -Et (33.9 mg, 0.10 mmol) was used, and the same reaction operation as in Example 22 was performed to obtain a crude product. The yield of the resulting crude product by 19 F-NMR was 47% including the by-product methyl 1-difluoromethoxyindene-2-carboxylate, and the ratio of the desired product to the by-product was 72/28.
実施例24 メチル 1−オキソ−2−ジフルオロメチル−2−インダンカルボキシラートの調製
実施例22のP1−tBu(15.2mg、0.10mmol)に替えて、DBU(15.2mg、0.10mmol)を用いた以外、実施例22と同じ反応操作を行い、粗製物を得た。得られた粗製物の19F−NMRによる収率は副生物のメチル 1−ジフルオロメトキシインデン−2−カルボキシラートを含め70%で、目的物と副生物の比は69/31であった。
Example 24 Preparation of methyl 1-oxo-2-difluoromethyl-2- indancarboxylate DBU (15.2 mg, 0.10 mmol) was used instead of P 1 -tBu (15.2 mg, 0.10 mmol) in Example 22. ) Was used, and the same reaction operation as in Example 22 was performed to obtain a crude product. The yield of the obtained crude product by 19 F-NMR was 70% including the by-product methyl 1-difluoromethoxyindene-2-carboxylate, and the ratio of the desired product to the by-product was 69/31.
実施例25 メチル 1−オキソ−2−ジフルオロメチル−2−インダンカルボキシラートの調製
アルゴンガス気流下、−75℃に冷却したメチル 1−オキソ−2−インダンカルボキシラート(41.8mg、0.22mmol)のジクロロメタン(2ml)溶液に、DBU(19.8mg、0.13mmol)を添加し、同温度で30分攪拌した。次いでこれに、フェニル(2,3,4,5−テトラメチルフェニル)ブロモジフルオロメチルチオフェニウム テトラフルオロボラート(45.9mg、0.1mmol)を添加した後、同温度で1時間反応を行った。
反応終了後、濃縮し残渣を得、19F−NMRによる収率は副生物のメチル 1−ジフルオロメトキシインデン−2−カルボキシラートを含め81%で、目的物と副生物の比は65/35であった。
Example 25 Preparation of methyl 1-oxo-2-difluoromethyl-2- indanecarboxylate Methyl 1-oxo-2-indanecarboxylate (41.8 mg, 0.22 mmol) cooled to −75 ° C. under an argon gas stream. DBU (19.8 mg, 0.13 mmol) was added to a dichloromethane (2 ml) solution, and the mixture was stirred at the same temperature for 30 minutes. Next, phenyl (2,3,4,5-tetramethylphenyl) bromodifluoromethylthiophenium tetrafluoroborate (45.9 mg, 0.1 mmol) was added thereto, followed by reaction at the same temperature for 1 hour. .
After completion of the reaction, the residue was concentrated to obtain a residue. The yield by 19 F-NMR was 81% including the by-product methyl 1-difluoromethoxyindene-2-carboxylate, and the ratio of the desired product to the by-product was 65/35. there were.
実施例26 メチル 1−オキソ−2−ジフルオロメチル−2−インダンカルボキシラートの調製
実施例25のフェニル(2,3,4,5−テトラメチルフェニル)ブロモジフルオロメチルチオフェニウム テトラフルオロボラート(45.9mg、0.1mmol)に替えて、フェニル(2,3,4,5−テトラメチルフェニル)ブロモジフルオロメチルチオフェニウム トリフルオロメタンスルホナート(52.1mg、0.1mmol)を用いた以外実施例25と同じ操作を行い、粗製物を得た。得られた粗製物の19F−NMRによる収率は副生物のメチル 1−ジフルオロメトキシインデン−2−カルボキシラートを含め85%で、目的物と副生物の比は80/20であった。また他の不純物として、メチル 1−オキソ−2−ブロモ−2−インダンカルボキシラート(22.1mg、0.082mmol)が生成していた(収率82%)。
Example 26 Preparation of methyl 1-oxo-2-difluoromethyl-2-indanecarboxylate Phenyl (2,3,4,5-tetramethylphenyl) bromodifluoromethylthiophenium tetrafluoroborate of Example 25 (45. 9 mg, 0.1 mmol) Example 25 except that phenyl (2,3,4,5-tetramethylphenyl) bromodifluoromethylthiophenium trifluoromethanesulfonate (52.1 mg, 0.1 mmol) was used. The same operation was performed to obtain a crude product. The yield of the obtained crude product by 19 F-NMR was 85% including the by-product methyl 1-difluoromethoxyindene-2-carboxylate, and the ratio of the target product to the by-product was 80/20. As another impurity, methyl 1-oxo-2-bromo-2-indanecarboxylate (22.1 mg, 0.082 mmol) was produced (yield 82%).
実施例27〜39 各種基質のジフルオロメチル化反応
各種基質を用い、表2中に示した条件下反応を行った。結果を表1中に示した。
Examples 27-39 Difluoromethylation reaction of various substrates The reaction was carried out under the conditions shown in Table 2 using various substrates. The results are shown in Table 1.
実施例40 ベンジル 1−フルオロ−2−オキソシクロペンタン−1−カルボキシラートの調製
アルゴンガス気流下、−75℃に冷却したベンジル 2−オキソシクロペンタン−1−カルボキシラート(48.0mg、0.22mmol)のジクロロメタン(2ml)溶液に、DBU(19.8mg、0.13mmol)を添加し、同温度で30分攪拌した。次いでこれに、フェニル(2,3,4,5−テトラメチルフェニル)ブロモジフルオロメチルチオフェニウム トリフルオロメタンスルホナート(52.1mg、0.1mmol)を添加した後、同温度で1時間反応を行った。
反応終了後、濃縮し残渣を得、19F−NMRによる収率は副生物のベンジル 2−ジフルオロメトキシ−1−シクロペンテン−1−カルボキシラートを含め63%で、目的物と副生物の比は79/21であった。またシリカゲルカラムクロマトグラフィーでの精製後のその収率は47%であった。一方、その他の副生物のベンジル 1−ブロモ−2−オキソシクロペンタン−1−カルボキシラートは生成が認められるものの、高純度品を単離することができなかった。
Example 40 Preparation of benzyl 1-fluoro-2-oxocyclopentane-1-carboxylate Benzyl 2-oxocyclopentane-1-carboxylate (48.0 mg, 0.22 mmol) cooled to −75 ° C. under a stream of argon gas. DBU (19.8 mg, 0.13 mmol) was added to a dichloromethane (2 ml) solution, and the mixture was stirred at the same temperature for 30 minutes. Next, phenyl (2,3,4,5-tetramethylphenyl) bromodifluoromethylthiophenium trifluoromethanesulfonate (52.1 mg, 0.1 mmol) was added thereto, and the reaction was performed at the same temperature for 1 hour. .
After completion of the reaction, the reaction mixture was concentrated to obtain a residue. The yield by 19 F-NMR was 63% including the by-product benzyl 2-difluoromethoxy-1-cyclopentene-1-carboxylate, and the ratio of the desired product to the by-product was 79. / 21. The yield after purification by silica gel column chromatography was 47%. On the other hand, although other by-product benzyl 1-bromo-2-oxocyclopentane-1-carboxylate was observed, a high-purity product could not be isolated.
実施例41 エチル 2−フルオロ−2−メチル−3−オキソ−3−フェニルプロピオナートの調製
アルゴンガス気流下、−75℃に冷却したエチル 2−メチル−3−オキソ−3−フェニルプロピオナート(45.4mg、0.22mmol)のジクロロメタン(2ml)溶液に、P1-tBu(30.5mg、0.13mmol)を添加し、同温度で30分攪拌した。次いでこれに、フェニル(2,3,4,5−テトラメチルフェニル)ブロモジフルオロメチルチオフェニウム トリフルオロメタンスルホナート(52.1mg、0.1mmol)を添加した後、同温度で1時間反応を行った。
反応終了後、濃縮し残渣を得、19F−NMRによる収率は副生物のベンジル 2−ジフルオロメトキシ−1−シクロペンテン−1−カルボキシラートを含め56%で、目的物と副生物の比は74/26であった。シリカゲルカラムクロマトグラフィーでの精製では、各成分を高純度品として単離することはできなかった。
Example 41 Preparation of ethyl 2-fluoro-2-methyl-3-oxo-3-phenylpropionate Ethyl 2-methyl-3-oxo-3-phenylpropionate (45 (4 mg, 0.22 mmol) in dichloromethane (2 ml) was added P 1 -t Bu (30.5 mg, 0.13 mmol) and stirred at the same temperature for 30 minutes. Next, phenyl (2,3,4,5-tetramethylphenyl) bromodifluoromethylthiophenium trifluoromethanesulfonate (52.1 mg, 0.1 mmol) was added thereto, and the reaction was performed at the same temperature for 1 hour. .
After completion of the reaction, the reaction mixture was concentrated to obtain a residue. The yield by 19 F-NMR was 56% including the by-product benzyl 2-difluoromethoxy-1-cyclopentene-1-carboxylate, and the ratio of the desired product to the by-product was 74. / 26. In purification by silica gel column chromatography, each component could not be isolated as a high purity product.
本発明のジフルオロメチル化反応は、炭素原子上にジフルオロメチル基が導入可能で、ジフルオロメチル基を含有する各種医農薬の合成中間体の製造に用いられる。 In the difluoromethylation reaction of the present invention, a difluoromethyl group can be introduced on a carbon atom, and the difluoromethylation reaction is used for producing synthetic intermediates for various medical and agricultural chemicals containing a difluoromethyl group.
Claims (1)
を示し、式中、R2とR6は縮環して4〜8員環の環構造を形成しても良く、Aは酸素原子又はマロノニトリル基を示し、R1、R2及びR3が全て水素原子であることはない]
で表されるカルボニル化合物またはマロノニトリル誘導体を、塩基存在下、フェニル(2,3,4,5−テトラメチルフェニル)ブロモジフルオロメチルチオフェニウム テトラフルオロボラート、又はフェニル(2,3,4,5−テトラメチルフェニル)ブロモジフルオロメチルチオフェニウム トリフルオロメタンスルホナートを反応させることを特徴とする一般式(3)
で表されるジフルオロメチル基含有化合物の製造方法。 General formula (1)
Wherein R 2 and R 6 may be condensed to form a 4- to 8-membered ring structure, A represents an oxygen atom or a malononitrile group, and R 1 , R 2 and R 3 are Not all hydrogen atoms]
In the presence of a base, phenyl (2,3,4,5-tetramethylphenyl) bromodifluoromethylthiophenium tetrafluoroborate or phenyl (2,3,4,5- Tetramethylphenyl) bromodifluoromethylthiophenium General formula (3) characterized by reacting with trifluoromethanesulfonate
The manufacturing method of the difluoromethyl group containing compound represented by these.
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