CN114411178A - 多取代吡唑类化合物及其电化学合成方法 - Google Patents
多取代吡唑类化合物及其电化学合成方法 Download PDFInfo
- Publication number
- CN114411178A CN114411178A CN202111584358.XA CN202111584358A CN114411178A CN 114411178 A CN114411178 A CN 114411178A CN 202111584358 A CN202111584358 A CN 202111584358A CN 114411178 A CN114411178 A CN 114411178A
- Authority
- CN
- China
- Prior art keywords
- reaction
- electrode
- compound
- polysubstituted
- dichloromethane
- 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.)
- Granted
Links
- -1 Polysubstituted pyrazole compound Chemical class 0.000 title claims abstract description 21
- 238000001308 synthesis method Methods 0.000 title abstract description 6
- 238000006243 chemical reaction Methods 0.000 claims abstract description 121
- 150000003217 pyrazoles Chemical class 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims abstract description 5
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N dichloromethane Substances ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 150
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 24
- 239000000203 mixture Substances 0.000 claims description 21
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 20
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 20
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 18
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical group CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 18
- 229910002804 graphite Inorganic materials 0.000 claims description 18
- 239000010439 graphite Substances 0.000 claims description 18
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Chemical compound [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 claims description 18
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 16
- FVAUCKIRQBBSSJ-UHFFFAOYSA-M sodium iodide Chemical compound [Na+].[I-] FVAUCKIRQBBSSJ-UHFFFAOYSA-M 0.000 claims description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 14
- 229910052759 nickel Inorganic materials 0.000 claims description 12
- 238000000926 separation method Methods 0.000 claims description 12
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 11
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 10
- 239000003570 air Substances 0.000 claims description 10
- 125000003118 aryl group Chemical group 0.000 claims description 10
- 229910052757 nitrogen Inorganic materials 0.000 claims description 10
- 229910052697 platinum Inorganic materials 0.000 claims description 10
- YTPLMLYBLZKORZ-UHFFFAOYSA-N Thiophene Chemical group C=1C=CSC=1 YTPLMLYBLZKORZ-UHFFFAOYSA-N 0.000 claims description 9
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 9
- 229910021397 glassy carbon Inorganic materials 0.000 claims description 9
- 125000000217 alkyl group Chemical group 0.000 claims description 8
- 229910052786 argon Inorganic materials 0.000 claims description 8
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 229940125904 compound 1 Drugs 0.000 claims description 6
- 229940125782 compound 2 Drugs 0.000 claims description 6
- 125000001624 naphthyl group Chemical group 0.000 claims description 6
- 125000001424 substituent group Chemical group 0.000 claims description 6
- YLQBMQCUIZJEEH-UHFFFAOYSA-N Furan Chemical group C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 5
- MHCFAGZWMAWTNR-UHFFFAOYSA-M lithium perchlorate Chemical compound [Li+].[O-]Cl(=O)(=O)=O MHCFAGZWMAWTNR-UHFFFAOYSA-M 0.000 claims description 5
- 229910001486 lithium perchlorate Inorganic materials 0.000 claims description 5
- 235000009518 sodium iodide Nutrition 0.000 claims description 5
- JRMUNVKIHCOMHV-UHFFFAOYSA-M tetrabutylammonium bromide Chemical compound [Br-].CCCC[N+](CCCC)(CCCC)CCCC JRMUNVKIHCOMHV-UHFFFAOYSA-M 0.000 claims description 5
- DPKBAXPHAYBPRL-UHFFFAOYSA-M tetrabutylazanium;iodide Chemical compound [I-].CCCC[N+](CCCC)(CCCC)CCCC DPKBAXPHAYBPRL-UHFFFAOYSA-M 0.000 claims description 5
- ISNKSXRJJVWFIL-UHFFFAOYSA-N (sulfonylamino)amine Chemical compound NN=S(=O)=O ISNKSXRJJVWFIL-UHFFFAOYSA-N 0.000 claims description 4
- 239000007810 chemical reaction solvent Substances 0.000 claims description 4
- 229940126214 compound 3 Drugs 0.000 claims description 4
- 239000003792 electrolyte Substances 0.000 claims description 4
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 4
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 claims description 3
- 230000035484 reaction time Effects 0.000 claims description 3
- 125000004178 (C1-C4) alkyl group Chemical group 0.000 claims description 2
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical compound ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 claims description 2
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052794 bromium Inorganic materials 0.000 claims description 2
- 239000000460 chlorine Substances 0.000 claims description 2
- 229910052801 chlorine Inorganic materials 0.000 claims description 2
- 238000004440 column chromatography Methods 0.000 claims description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 2
- XMSZANIMCDLNKA-UHFFFAOYSA-N methyl hypofluorite Chemical compound COF XMSZANIMCDLNKA-UHFFFAOYSA-N 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 6
- 238000003786 synthesis reaction Methods 0.000 abstract description 5
- 230000015572 biosynthetic process Effects 0.000 abstract description 4
- 239000000654 additive Substances 0.000 abstract description 3
- 239000003054 catalyst Substances 0.000 abstract description 3
- 125000000524 functional group Chemical group 0.000 abstract description 3
- 239000007800 oxidant agent Substances 0.000 abstract description 3
- 230000000996 additive effect Effects 0.000 abstract description 2
- 239000003153 chemical reaction reagent Substances 0.000 abstract description 2
- 230000001590 oxidative effect Effects 0.000 abstract description 2
- 125000000472 sulfonyl group Chemical group *S(*)(=O)=O 0.000 abstract description 2
- 230000003321 amplification Effects 0.000 abstract 1
- 238000003199 nucleic acid amplification method Methods 0.000 abstract 1
- 239000003115 supporting electrolyte Substances 0.000 abstract 1
- HEDRZPFGACZZDS-MICDWDOJSA-N Trichloro(2H)methane Chemical compound [2H]C(Cl)(Cl)Cl HEDRZPFGACZZDS-MICDWDOJSA-N 0.000 description 94
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 66
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 44
- 239000007787 solid Substances 0.000 description 44
- 238000005160 1H NMR spectroscopy Methods 0.000 description 22
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 22
- 239000008346 aqueous phase Substances 0.000 description 22
- 239000003480 eluent Substances 0.000 description 22
- 238000001819 mass spectrum Methods 0.000 description 22
- 238000005259 measurement Methods 0.000 description 22
- 238000000655 nuclear magnetic resonance spectrum Methods 0.000 description 22
- 239000012074 organic phase Substances 0.000 description 22
- 239000003208 petroleum Substances 0.000 description 22
- 238000010898 silica gel chromatography Methods 0.000 description 22
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical class O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 22
- 238000004983 proton decoupled 13C NMR spectroscopy Methods 0.000 description 21
- 238000005303 weighing Methods 0.000 description 19
- 239000002904 solvent Substances 0.000 description 16
- ICGLPKIVTVWCFT-UHFFFAOYSA-N 4-methylbenzenesulfonohydrazide Chemical compound CC1=CC=C(S(=O)(=O)NN)C=C1 ICGLPKIVTVWCFT-UHFFFAOYSA-N 0.000 description 14
- 238000004293 19F NMR spectroscopy Methods 0.000 description 3
- 229940079593 drug Drugs 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 239000012046 mixed solvent Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- NOIXNOMHHWGUTG-UHFFFAOYSA-N 2-[[4-[4-pyridin-4-yl-1-(2,2,2-trifluoroethyl)pyrazol-3-yl]phenoxy]methyl]quinoline Chemical compound C=1C=C(OCC=2N=C3C=CC=CC3=CC=2)C=CC=1C1=NN(CC(F)(F)F)C=C1C1=CC=NC=C1 NOIXNOMHHWGUTG-UHFFFAOYSA-N 0.000 description 2
- VJRITMATACIYAF-UHFFFAOYSA-N benzenesulfonohydrazide Chemical compound NNS(=O)(=O)C1=CC=CC=C1 VJRITMATACIYAF-UHFFFAOYSA-N 0.000 description 2
- 230000000975 bioactive effect Effects 0.000 description 2
- 230000004071 biological effect Effects 0.000 description 2
- RZEKVGVHFLEQIL-UHFFFAOYSA-N celecoxib Chemical compound C1=CC(C)=CC=C1C1=CC(C(F)(F)F)=NN1C1=CC=C(S(N)(=O)=O)C=C1 RZEKVGVHFLEQIL-UHFFFAOYSA-N 0.000 description 2
- 229960000590 celecoxib Drugs 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000000575 pesticide Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 229930192474 thiophene Natural products 0.000 description 2
- 238000004009 13C{1H}-NMR spectroscopy Methods 0.000 description 1
- OFJRNBWSFXEHSA-UHFFFAOYSA-N 2-(3-amino-1,2-benzoxazol-5-yl)-n-[4-[2-[(dimethylamino)methyl]imidazol-1-yl]-2-fluorophenyl]-5-(trifluoromethyl)pyrazole-3-carboxamide Chemical compound CN(C)CC1=NC=CN1C(C=C1F)=CC=C1NC(=O)C1=CC(C(F)(F)F)=NN1C1=CC=C(ON=C2N)C2=C1 OFJRNBWSFXEHSA-UHFFFAOYSA-N 0.000 description 1
- CXKLORMPCQNIPP-UHFFFAOYSA-N 3,5-diethyl-1,4-bis-(4-methylphenyl)sulfonylpyrazole Chemical compound CCc1nn(c(CC)c1S(=O)(=O)c1ccc(C)cc1)S(=O)(=O)c1ccc(C)cc1 CXKLORMPCQNIPP-UHFFFAOYSA-N 0.000 description 1
- GGRSCZSVNVYRQE-UHFFFAOYSA-N 3,5-dimethyl-1,4-bis-(4-methylphenyl)sulfonylpyrazole Chemical compound Cc1nn(c(C)c1S(=O)(=O)c1ccc(C)cc1)S(=O)(=O)c1ccc(C)cc1 GGRSCZSVNVYRQE-UHFFFAOYSA-N 0.000 description 1
- UVPBLUQLRLQLOV-UHFFFAOYSA-N 3-methyl-1,4-bis-(4-methylphenyl)sulfonyl-5-phenylpyrazole Chemical compound Cc1nn(c(c1S(=O)(=O)c1ccc(C)cc1)-c1ccccc1)S(=O)(=O)c1ccc(C)cc1 UVPBLUQLRLQLOV-UHFFFAOYSA-N 0.000 description 1
- UIWFWZLAICURGT-UHFFFAOYSA-N 4-Methoxybenzenesulfonohydrazide Chemical compound COC1=CC=C(S(=O)(=O)NN)C=C1 UIWFWZLAICURGT-UHFFFAOYSA-N 0.000 description 1
- ZOCSXAVNDGMNBV-UHFFFAOYSA-N 5-amino-1-[2,6-dichloro-4-(trifluoromethyl)phenyl]-4-[(trifluoromethyl)sulfinyl]-1H-pyrazole-3-carbonitrile Chemical compound NC1=C(S(=O)C(F)(F)F)C(C#N)=NN1C1=C(Cl)C=C(C(F)(F)F)C=C1Cl ZOCSXAVNDGMNBV-UHFFFAOYSA-N 0.000 description 1
- 241000238876 Acari Species 0.000 description 1
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 1
- UPRNJDXJGCBKMD-UHFFFAOYSA-N C1(=CC=CC=C1)C1=C(C=NN1S(=O)(=O)C1=CC=C(C)C=C1)S(=O)(=O)C1=CC=C(C)C=C1 Chemical compound C1(=CC=CC=C1)C1=C(C=NN1S(=O)(=O)C1=CC=C(C)C=C1)S(=O)(=O)C1=CC=C(C)C=C1 UPRNJDXJGCBKMD-UHFFFAOYSA-N 0.000 description 1
- OCSBVHGLXMDMSY-UHFFFAOYSA-N CC(C(S(C(C=C1)=CC=C1OC)(=O)=O)=C1C2=CC=CC=C2)=NN1S(C(C=C1)=CC=C1OC)(=O)=O Chemical compound CC(C(S(C(C=C1)=CC=C1OC)(=O)=O)=C1C2=CC=CC=C2)=NN1S(C(C=C1)=CC=C1OC)(=O)=O OCSBVHGLXMDMSY-UHFFFAOYSA-N 0.000 description 1
- JVBGJKAIWMWFKG-UHFFFAOYSA-N CC(C(S(C1=CC=C(C)C=C1)(=O)=O)=C1C2=CC3=CC=CC=C3C=C2)=NN1S(C1=CC=C(C)C=C1)(=O)=O Chemical compound CC(C(S(C1=CC=C(C)C=C1)(=O)=O)=C1C2=CC3=CC=CC=C3C=C2)=NN1S(C1=CC=C(C)C=C1)(=O)=O JVBGJKAIWMWFKG-UHFFFAOYSA-N 0.000 description 1
- HEHGPBCTMGXSSJ-UHFFFAOYSA-N CC(C(S(C1=CC=CS1)(=O)=O)=C1C2=CC=CC=C2)=NN1S(C1=CC=CS1)(=O)=O Chemical compound CC(C(S(C1=CC=CS1)(=O)=O)=C1C2=CC=CC=C2)=NN1S(C1=CC=CS1)(=O)=O HEHGPBCTMGXSSJ-UHFFFAOYSA-N 0.000 description 1
- MMKJZWLZRCOFRW-UHFFFAOYSA-N CC(C=C1)=CC=C1S(C(C=N1)=C(C(C=C2)=CC=C2OC)N1S(C1=CC=C(C)C=C1)(=O)=O)(=O)=O Chemical compound CC(C=C1)=CC=C1S(C(C=N1)=C(C(C=C2)=CC=C2OC)N1S(C1=CC=C(C)C=C1)(=O)=O)(=O)=O MMKJZWLZRCOFRW-UHFFFAOYSA-N 0.000 description 1
- REKMAALNBLSMSG-UHFFFAOYSA-N CC(C=C1)=CC=C1S(C(C=N1)=C(C2=CC3=CC=CC=C3C=C2)N1S(C1=CC=C(C)C=C1)(=O)=O)(=O)=O Chemical compound CC(C=C1)=CC=C1S(C(C=N1)=C(C2=CC3=CC=CC=C3C=C2)N1S(C1=CC=C(C)C=C1)(=O)=O)(=O)=O REKMAALNBLSMSG-UHFFFAOYSA-N 0.000 description 1
- AUOVMYFKWXSXQU-UHFFFAOYSA-N CC(C=C1)=CC=C1S(C(C=N1)=C(C2=CC=C(C(F)(F)F)C=C2)N1S(C1=CC=C(C)C=C1)(=O)=O)(=O)=O Chemical compound CC(C=C1)=CC=C1S(C(C=N1)=C(C2=CC=C(C(F)(F)F)C=C2)N1S(C1=CC=C(C)C=C1)(=O)=O)(=O)=O AUOVMYFKWXSXQU-UHFFFAOYSA-N 0.000 description 1
- LTKQYUDUZONYRV-UHFFFAOYSA-N CC1=NN(C(=C1S(=O)(=O)C1=CC=C(C)C=C1)C1=CC=C(C=C1)C)S(=O)(=O)C1=CC=C(C)C=C1 Chemical compound CC1=NN(C(=C1S(=O)(=O)C1=CC=C(C)C=C1)C1=CC=C(C=C1)C)S(=O)(=O)C1=CC=C(C)C=C1 LTKQYUDUZONYRV-UHFFFAOYSA-N 0.000 description 1
- NTTBAJOCEPLMSF-UHFFFAOYSA-N CC1=NN(C(=C1S(=O)(=O)C1=CC=CC=C1)C1=CC=CC=C1)S(=O)(=O)C1=CC=CC=C1 Chemical compound CC1=NN(C(=C1S(=O)(=O)C1=CC=CC=C1)C1=CC=CC=C1)S(=O)(=O)C1=CC=CC=C1 NTTBAJOCEPLMSF-UHFFFAOYSA-N 0.000 description 1
- HDBOIRRXWVMDAE-UHFFFAOYSA-N COC1=CC=C(C=C1)C1=C(C(=NN1S(=O)(=O)C1=CC=C(C)C=C1)C)S(=O)(=O)C1=CC=C(C)C=C1 Chemical compound COC1=CC=C(C=C1)C1=C(C(=NN1S(=O)(=O)C1=CC=C(C)C=C1)C)S(=O)(=O)C1=CC=C(C)C=C1 HDBOIRRXWVMDAE-UHFFFAOYSA-N 0.000 description 1
- DRSHXJFUUPIBHX-UHFFFAOYSA-N COc1ccc(cc1)N1N=CC2C=NC(Nc3cc(OC)c(OC)c(OCCCN4CCN(C)CC4)c3)=NC12 Chemical compound COc1ccc(cc1)N1N=CC2C=NC(Nc3cc(OC)c(OC)c(OCCCN4CCN(C)CC4)c3)=NC12 DRSHXJFUUPIBHX-UHFFFAOYSA-N 0.000 description 1
- UNCZKQQUCCBZOM-UHFFFAOYSA-N ClC1=CC=C(C=C1)C1=C(C(=NN1S(=O)(=O)C1=CC=C(C)C=C1)C)S(=O)(=O)C1=CC=C(C)C=C1 Chemical compound ClC1=CC=C(C=C1)C1=C(C(=NN1S(=O)(=O)C1=CC=C(C)C=C1)C)S(=O)(=O)C1=CC=C(C)C=C1 UNCZKQQUCCBZOM-UHFFFAOYSA-N 0.000 description 1
- HHVGZCCXEOBPPA-UHFFFAOYSA-N FC1=CC=C(C=C1)S(=O)(=O)N1N=C(C(=C1C1=CC=CC=C1)S(=O)(=O)C1=CC=C(C=C1)F)C Chemical compound FC1=CC=C(C=C1)S(=O)(=O)N1N=C(C(=C1C1=CC=CC=C1)S(=O)(=O)C1=CC=C(C=C1)F)C HHVGZCCXEOBPPA-UHFFFAOYSA-N 0.000 description 1
- 229940123583 Factor Xa inhibitor Drugs 0.000 description 1
- 239000005899 Fipronil Substances 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- 206010061218 Inflammation Diseases 0.000 description 1
- XQJQCBDIXRIYRP-UHFFFAOYSA-N N-{2-[1,1'-bi(cyclopropyl)-2-yl]phenyl}-3-(difluoromethyl)-1-methyl-1pyrazole-4-carboxamide Chemical compound FC(F)C1=NN(C)C=C1C(=O)NC1=CC=CC=C1C1C(C2CC2)C1 XQJQCBDIXRIYRP-UHFFFAOYSA-N 0.000 description 1
- UDPGURJQIPWSOE-UHFFFAOYSA-N O1C(=CC=C1)C1=C(C(=NN1S(=O)(=O)C1=CC=C(C)C=C1)C)S(=O)(=O)C1=CC=C(C)C=C1 Chemical compound O1C(=CC=C1)C1=C(C(=NN1S(=O)(=O)C1=CC=C(C)C=C1)C)S(=O)(=O)C1=CC=C(C)C=C1 UDPGURJQIPWSOE-UHFFFAOYSA-N 0.000 description 1
- DHTNIFTVMOOBSA-UHFFFAOYSA-N O=S(C(C=N1)=C(C2=CC=CC=C2)N1S(C(C=C1)=CC=C1F)(=O)=O)(C(C=C1)=CC=C1F)=O Chemical compound O=S(C(C=N1)=C(C2=CC=CC=C2)N1S(C(C=C1)=CC=C1F)(=O)=O)(C(C=C1)=CC=C1F)=O DHTNIFTVMOOBSA-UHFFFAOYSA-N 0.000 description 1
- WFUJXSOYLPJBTK-UHFFFAOYSA-N O=S(C(C=N1)=C(C2=CC=CC=C2)N1S(C1=CC2=CC=CC=C2C=C1)(=O)=O)(C1=CC2=CC=CC=C2C=C1)=O Chemical compound O=S(C(C=N1)=C(C2=CC=CC=C2)N1S(C1=CC2=CC=CC=C2C=C1)(=O)=O)(C1=CC2=CC=CC=C2C=C1)=O WFUJXSOYLPJBTK-UHFFFAOYSA-N 0.000 description 1
- VYVXRHQRWXQOAT-UHFFFAOYSA-N O=S(C(C=N1)=C(C2=CC=CC=C2)N1S(C1=CC=CC=C1)(=O)=O)(C1=CC=CC=C1)=O Chemical compound O=S(C(C=N1)=C(C2=CC=CC=C2)N1S(C1=CC=CC=C1)(=O)=O)(C1=CC=CC=C1)=O VYVXRHQRWXQOAT-UHFFFAOYSA-N 0.000 description 1
- ANEJIMRKFAWHEF-UHFFFAOYSA-N O=S(C(C=N1)=C(C2=CC=CC=C2)N1S(C1=CC=CS1)(=O)=O)(C1=CC=CS1)=O Chemical compound O=S(C(C=N1)=C(C2=CC=CC=C2)N1S(C1=CC=CS1)(=O)=O)(C1=CC=CS1)=O ANEJIMRKFAWHEF-UHFFFAOYSA-N 0.000 description 1
- 239000005605 Pyraflufen-ethyl Substances 0.000 description 1
- WTKZEGDFNFYCGP-UHFFFAOYSA-N Pyrazole Chemical compound C=1C=NNC=1 WTKZEGDFNFYCGP-UHFFFAOYSA-N 0.000 description 1
- 239000005834 Sedaxane Substances 0.000 description 1
- 230000000895 acaricidal effect Effects 0.000 description 1
- 239000000642 acaricide Substances 0.000 description 1
- 230000036592 analgesia Effects 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000003110 anti-inflammatory effect Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- NLFBCYMMUAKCPC-KQQUZDAGSA-N ethyl (e)-3-[3-amino-2-cyano-1-[(e)-3-ethoxy-3-oxoprop-1-enyl]sulfanyl-3-oxoprop-1-enyl]sulfanylprop-2-enoate Chemical compound CCOC(=O)\C=C\SC(=C(C#N)C(N)=O)S\C=C\C(=O)OCC NLFBCYMMUAKCPC-KQQUZDAGSA-N 0.000 description 1
- 229940013764 fipronil Drugs 0.000 description 1
- 239000000417 fungicide Substances 0.000 description 1
- 239000004009 herbicide Substances 0.000 description 1
- 150000002391 heterocyclic compounds Chemical class 0.000 description 1
- OAKJQQAXSVQMHS-UHFFFAOYSA-N hydrazine Substances NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 1
- 150000007857 hydrazones Chemical class 0.000 description 1
- 201000001421 hyperglycemia Diseases 0.000 description 1
- 239000002917 insecticide Substances 0.000 description 1
- 239000003446 ligand Substances 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000008204 material by function Substances 0.000 description 1
- TTZNQDOUNXBMJV-UHFFFAOYSA-N mavacoxib Chemical compound C1=CC(S(=O)(=O)N)=CC=C1N1C(C=2C=CC(F)=CC=2)=CC(C(F)(F)F)=N1 TTZNQDOUNXBMJV-UHFFFAOYSA-N 0.000 description 1
- 229950007241 mavacoxib Drugs 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- UFWIBTONFRDIAS-UHFFFAOYSA-N naphthalene-acid Natural products C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 1
- 229930014626 natural product Natural products 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen(.) Chemical compound [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 239000000041 non-steroidal anti-inflammatory agent Substances 0.000 description 1
- 229940021182 non-steroidal anti-inflammatory drug Drugs 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000000144 pharmacologic effect Effects 0.000 description 1
- 230000001766 physiological effect Effects 0.000 description 1
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical group C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 1
- 125000003226 pyrazolyl group Chemical group 0.000 description 1
- 229950010535 razaxaban Drugs 0.000 description 1
- 238000007363 ring formation reaction Methods 0.000 description 1
- 239000003751 serotonin 6 antagonist Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 238000009333 weeding Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B3/00—Electrolytic production of organic compounds
- C25B3/01—Products
- C25B3/07—Oxygen containing compounds
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B3/00—Electrolytic production of organic compounds
- C25B3/01—Products
- C25B3/09—Nitrogen containing compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
本发明公开了多取代吡唑类化合物及其电化学合成方法,以β‑烯胺酮和磺酰肼为起始原料,在电化学一体池中,支持电解质的存在下,通过恒电流电解实现多取代吡唑类化合物4和5的绿色合成。该方法原料易得、操作简便,合成反应条件温和、反应效率高,官能团耐受性强,可避免氧化剂、催化剂、添加剂等试剂的使用,并且可以实现克级规模放大反应,具有一定工业化应用前景。
Description
技术领域
本发明多取代吡唑类化合物及其制备方法,特别涉及多取代吡唑类化合物及其电化学合成方法。
背景技术
氮杂环化合物是杂环化合物的重要分支,在自然界中普遍存在,广泛地存在于天然产物和生物活性分子中,在医药和材料化学领域具有重要的用途。吡唑是一类重要的氮杂环化合物,常作为金属配体(J.Mater.Chem.2006,16,2736)及功能性材料(Chem.- AsianJ.2018,13,1165),并且具有多种生物活性(Eur.J.Med.Chem.2013,69,735),广泛的应用于农药和医药中如除草、杀虫、杀螨、杀菌、抗炎、止痛、退热和抗高血糖等。吡唑类农药具有生物活性高、低毒、污染低对环境友好等特点被广泛开发应用,如吡草醚除草剂(2017,JP2017206453A)、氟虫腈杀虫剂(Bioorg.Med.Chem.2019,27, 115092)、乙唑螨腈杀螨剂(J.Agric.Food Chem,2016,64,9586)、氟唑环菌胺杀菌剂 (2017,WO,2017129759A1)等被广泛应用于农业生产中(结构如下)。
目前,已上市的药物如Xa因子抑制剂雷扎沙班(Razaxaban,J.Med.Chem.2005,48,1823)、非甾体类抗炎药塞来昔布(Celecoxib,Eur.J.Med.Chem.2017,126,225)和吗伐考昔(Mavacoxib,J.Vet.Pharmacol.Ther.2010,33,461)等均含有吡唑骨架结构。此外,近年来科研工作者也发展出很多含磺酰基取代的吡唑生物活性分子,如具有抗炎作用的化合物I(Eur.J.Med.Chem.,2014,80,416),具有抗菌活性的化合物II(J.Agric. Food Chem.,2008,56,10160)和5-HT6受体阻滞剂化合物III(J.Med.Chem.,2010,53, 2521)(结构如下)。鉴于吡唑类化合物具有广泛的药理和生理活性,发展其多样性合成的新反应、新方法和新策略具有一定的研究意义。
经典的合成吡唑类化合物的策略由1,3-二羰基化合物与肼类化合物,通过环化反应获得吡唑类化合物,或者以腙为起始原料合成吡唑类化合物。但是大部分的合成方法往往都需要催化剂、氧化剂和添加剂、且具有底物种类有限、制备繁琐,反应条件苛刻,及区域选择性差等问题。
发明内容
发明目的:本发明的目的在于提供一种反应条件温和、反应效率高,官能团耐受性强的多取代吡唑类化合物及其电化学合成方法。
技术方案:本发明所述的多取代吡唑类化合物,结构如下:
其中,
R1为烷基、芳基、萘环、呋喃环或噻吩环;
R2为烷基;
R3为烷基、芳基、萘环、呋喃环或噻吩环;
R4为芳基、萘环或噻吩环;
所述芳基为苯基或苯环上带有取代基的芳基,苯环上带有取代基为甲基、甲氧基、氟、氯、溴、三氟甲基中的1-5种,苯环上取代基的个数为1-5个;烷基为C1-C4烷基,优选为甲基或乙基。
所述的多取代吡唑类化合物的制备方法,以β-烯胺酮类化合物1或2和磺酰肼类化合物3为起始原料,加入反应溶剂,插入电极并接通电流电解,反应结束后经柱层析分离,得到多取代吡唑类化合物4或5;
合成路线如下述反应式所示,
其中,R1、R2、R3和R4如前所述。
进一步地、所述正极和负极分别独立选自石墨电极、网状玻璃态碳电极、石墨毡电极、铂电极、镍电极或铁电极中的一种。
进一步地、所述电解质为四丁基碘化铵、四丁基溴化铵、碘化钾、碘化钠、高氯酸锂或四丁基四氟硼酸铵中的一种或多种;电解质的用量为β-烯胺酮类化合物1或2的 50~300mol%,进一步优选为100~250mol%。
进一步地、β-烯胺酮类化合物1或2和磺酰肼类化合物3的摩尔比为1∶4-1∶12。优选摩尔比为1∶6-1∶9。
进一步地、反应溶剂为乙醇(EtOH)、乙腈(MeCN)、甲苯、1,4-二氧六环、二甲基亚砜(DMSO)、1,2-二氯甲烷(DCM)、1,2-二氯乙烷(DCE)或水(H2O) 中的一种或两种的混合物。
进一步地,所述恒电流为1~40mA,优选为6~20mA。反应气氛为空气、氧气、氮气或氩气;反应时间为1-48h;反应温度为20-80℃。
有益效果:本发明相对于现有技术,具有以下优势:
1、利用电催化氧化,实现多取代吡唑化合物绿色合成,避免了氧化剂、催化剂、添加剂等试剂的使用,绿色环保;
2、原料易得、操作简单、反应化学选择性高、反应时间短、反应温度低、产物收率高且官能团耐受性好;
3、该方法可以实现多种类型的取代吡唑化合物的绿色合成,且可能具有潜在的药物活性;
4、此类电化学反应可以达到克级规模,有较大的实施价值和社会经济效益。
具体实施方式
实施例1
依次称取β-烯胺酮1a(0.3mmol)、对甲苯磺酰肼3a(2.1mmol)和高氯酸锂(0.6mmol)于反应瓶中,插入网状玻璃态碳电极和铂电极,在氮气保护下,加入DCM溶剂 10mL,电流调整为恒流10mA,反应瓶放入40℃油浴中反应4h。反应结束后,将混合物冷却至室温,加入饱和食盐水淬灭反应,用二氯甲烷萃取水相,收集有机相,无水硫酸钠干燥,过滤,减压下除去挥发组份,然后用硅胶柱层析分离(洗脱液为石油醚(60-90 ℃)/乙酸乙酯/二氯甲烷,v/v/v=5∶1∶1),得到白色固体目标产物4a(111mg,收率79%)。目标产物通过核磁共振谱和高分辨质谱测定得到确认。
实施例2
依次称取β-烯胺酮1a(0.3mmol)、对甲氧基苯磺酰肼3b(2.4mmol)和四丁基四氟硼酸铵(0.45mmol)于反应瓶中,插入网状玻璃态碳电极和镍电极,在空气氛围下,加入EtOH溶剂12mL,电流调整为恒流12mA,反应瓶放入50℃油浴中反应3.5h。反应结束后,将混合物冷却至室温,加入饱和食盐水淬灭反应,用二氯甲烷萃取水相,收集有机相,无水硫酸钠干燥,过滤,减压下除去挥发组份,然后用硅胶柱层析分离(洗脱液为石油醚(60-90℃)/乙酸乙酯/二氯甲烷,v/v/v=5∶1∶1),得到白色固体目标产物4b (108mg,收率72%)。目标产物通过核磁共振谱和高分辨质谱测定得到确认。
实施例3
依次称取β-烯胺酮1a(0.3mmol)、苯磺酰肼3c(3.0mmol)和四丁基溴化铵(0.9mmol)于反应瓶中,插入石墨毡电极和铂电极,在氩气保护下,加入MeCN溶剂10mL,电流调整为恒流16mA,反应瓶放入45℃油浴中反应4h。反应结束后,将混合物冷却至室温,加入饱和食盐水淬灭反应,用二氯甲烷萃取水相,收集有机相,无水硫酸钠干燥,过滤,减压下除去挥发组份,然后用硅胶柱层析分离(洗脱液为石油醚(60-90℃)/乙酸乙酯/二氯甲烷,v/v/v=5∶1∶1),得到白色固体目标产物4c(97mg,收率74%)。目标产物通过核磁共振谱和高分辨质谱测定得到确认。
实施例4
依次称取β-烯胺酮1a(0.3mmol)、对氟苯磺酰肼3d(2.4mmol)和碘化钾(0.45mmol)于反应瓶中,插入石墨电极和镍电极,在空气氛围下,加入DCE溶剂8mL,电流调整为恒流18mA,反应瓶放入60℃油浴中反应4.5h。反应结束后,将混合物冷却至室温,加入饱和食盐水淬灭反应,用二氯甲烷萃取水相,收集有机相,无水硫酸钠干燥,过滤,减压下除去挥发组份,然后用硅胶柱层析分离(洗脱液为石油醚(60-90℃)/乙酸乙酯/二氯甲烷,v/v/v=5∶1∶1),得到白色固体目标产物4d(88mg,收率62%)。目标产物通过核磁共振谱和高分辨质谱测定得到确认。
实施例5
依次称取β-烯胺酮1a(0.3mmol)、噻吩磺酰肼3e(3.0mmol)和碘化钠(0.3mmol) 于反应瓶中,插入石墨电极和铁电极,在氩气保护下,加入甲苯溶剂12mL,电流调整为恒流20mA,反应瓶放入60℃油浴中反应3h。反应结束后,将混合物冷却至室温,加入饱和食盐水淬灭反应,用二氯甲烷萃取水相,收集有机相,无水硫酸钠干燥,过滤,减压下除去挥发组份,然后用硅胶柱层析分离(洗脱液为石油醚(60-90℃)/乙酸乙酯/二氯甲烷,v/v/v=5∶1∶1),得到白色固体目标产物4e(108mg,收率80%)。目标产物通过核磁共振谱和高分辨质谱测定得到确认。
实施例6
依次称取β-烯胺酮1b(0.3mmol)、对甲苯磺酰肼3a(1.8mmol)和四丁基碘化胺(0.15mmol)于反应瓶中,插入网状玻璃态碳电极和镍电极,在空气氛围下,加入DCE/H2O 混合溶剂14mL,电流调整为恒流6mA,反应室温搅拌24h。反应结束后,加入饱和食盐水淬灭反应,用二氯甲烷萃取水相,收集有机相,无水硫酸钠干燥,过滤,减压下除去挥发组份,然后用硅胶柱层析分离(洗脱液为石油醚(60-90℃)/乙酸乙酯/二氯甲烷,v/v/v=5∶1∶1),得到白色固体目标产物4f(112mg,收率78%)。目标产物通过核磁共振谱和高分辨质谱测定得到确认。
实施例7
依次称取β-烯胺酮1c(0.3mmol)、对甲苯磺酰肼3a(2.4mmol)和高氯酸锂(0.75mmol)于反应瓶中,插入石墨电极和镍电极,在空气氛围下,加入DCM/H2O混合溶剂 12mL,电流调整为恒流18mA,反应瓶放入50℃油浴中反应4h。反应结束后,将混合物冷却至室温,加入饱和食盐水淬灭反应,用二氯甲烷萃取水相,收集有机相,无水硫酸钠干燥,过滤,减压下除去挥发组份,然后用硅胶柱层析分离(洗脱液为石油醚(60-90 ℃)/乙酸乙酯/二氯甲烷,v/v/v=5∶1∶1),得到白色固体目标产物4g(107mg,收率72%)。目标产物通过核磁共振谱和高分辨质谱测定得到确认。
实施例8
依次称取β-烯胺酮1d(0.3mmol)、对甲苯磺酰肼3a(2.7mmol)和碘化钾(0.45mmol)于反应瓶中,插入石墨毡电极和铂电极,在氮气保护下,加入EtOH溶剂10mL,电流调整为恒流10mA,反应瓶在室温中搅拌反应12h。反应结束后,加入饱和食盐水淬灭反应,用二氯甲烷萃取水相,收集有机相,无水硫酸钠干燥,过滤,减压下除去挥发组份,然后用硅胶柱层析分离(洗脱液为石油醚(60-90℃)/乙酸乙酯/二氯甲烷,v/v/v= 5∶1∶1),得到白色固体目标产物4h(117mg,收率78%)。目标产物通过核磁共振谱和高分辨质谱测定得到确认。
实施例9
依次称取β-烯胺酮1e(0.3mmol)、对甲苯磺酰肼3a(1.2mmol)和四丁基溴化钠(0.9mmol)于反应瓶中,插入石墨电极和铁电极,在空气氛围下,加入MeCN溶剂8mL,电流调整为恒流16mA,反应瓶放入60℃油浴中反应8h。反应结束后,将混合物冷却至室温,加入饱和食盐水淬灭反应,用二氯甲烷萃取水相,收集有机相,无水硫酸钠干燥,过滤,减压下除去挥发组份,然后用硅胶柱层析分离(洗脱液为石油醚(60-90℃)/乙酸乙酯/二氯甲烷,v/v/v=5∶1∶1),得到白色固体目标产物4i(124mg,收率80%)。目标产物通过核磁共振谱和高分辨质谱测定得到确认。
实施例10
依次称取β-烯胺酮1f(0.3mmol)、对甲苯磺酰肼3a(1.5mmol)和碘化钠(0.6mmol)于反应瓶中,插入网状玻璃态碳电极和镍电极,在氩气保护下,加入EtOH溶剂10mL,电流调整为恒流14mA,反应瓶放入55℃油浴中反应5h。反应结束后,将混合物冷却至室温,加入饱和食盐水淬灭反应,用二氯甲烷萃取水相,收集有机相,无水硫酸钠干燥,过滤,减压下除去挥发组份,然后用硅胶柱层析分离(洗脱液为石油醚(60-90℃)/乙酸乙酯/二氯甲烷,v/v/v=5∶1∶1),得到白色固体目标产物4j(89mg,收率65%)。目标产物通过核磁共振谱和高分辨质谱测定得到确认。
实施例11
依次称取β-烯胺酮1g(0.3mmol)、对甲苯磺酰肼3a(2.4mmol)和四丁基四氟硼酸铵(0.75mmol)于反应瓶中,插入石墨电极和铂电极,在氮气保护下,加入MeCN溶剂12mL,电流调整为恒流25mA,反应瓶在室温中搅拌反应8h。反应结束后,加入饱和食盐水淬灭反应,用二氯甲烷萃取水相,收集有机相,无水硫酸钠干燥,过滤,减压下除去挥发组份,然后用硅胶柱层析分离(洗脱液为石油醚(60-90℃)/乙酸乙酯/二氯甲烷,v/v/v= 5∶1∶1),得到白色固体目标产物4k(82mg,收率68%)。目标产物通过核磁共振谱和高分辨质谱测定得到确认。
实施例12
依次称取β-烯胺酮1h(0.3mmol)、对甲苯磺酰肼3a(3.3mmol)和四丁基碘化胺(0.6mmol)于反应瓶中,插入石墨毡电极和镍电极,在空气氛围下,加入DCM溶剂10mL,电流调整为恒流30mA,反应瓶放入40℃油浴中反应3h。反应结束后,将混合物冷却至室温,加入饱和食盐水淬灭反应,用二氯甲烷萃取水相,收集有机相,无水硫酸钠干燥,过滤,减压下除去挥发组份,然后用硅胶柱层析分离(洗脱液为石油醚(60-90℃)/乙酸乙酯/二氯甲烷,v/v/v=5∶1∶1),得到白色固体目标产物4l(72mg,收率56%)。目标产物通过核磁共振谱和高分辨质谱测定得到确认。
实施例13
依次称取β-烯胺酮2a(0.3mmol)、对甲苯磺酰肼3a(1.8mmol)和四丁基溴化铵(0.6mmol)于反应瓶中,插入网状玻璃态碳电极和镍电极,在氮气保护下,加入DCM溶剂 10mL,电流调整为恒流8mA,反应瓶放入50℃油浴中反应12h。反应结束后,将混合物冷却至室温,加入饱和食盐水淬灭反应,用二氯甲烷萃取水相,收集有机相,无水硫酸钠干燥,过滤,减压下除去挥发组份,然后用硅胶柱层析分离(洗脱液为石油醚(60-90 ℃)/乙酸乙酯/二氯甲烷,v/v/v=5∶1∶1),得到白色固体目标产物5a(83mg,收率61%)。目标产物通过核磁共振谱和高分辨质谱测定得到确认。
实施例14
依次称取β-烯胺酮2a(0.3mmol)、苯磺酰肼3c(3.0mmol)和四丁基四氟硼酸铵(0.3mmol)于反应瓶中,插入石墨电极和铁电极,在氮气保护下,加入EtOH溶剂10mL,电流调整为恒流5mA,反应瓶放入40℃油浴中反应16h。反应结束后,将混合物冷却至室温,加入饱和食盐水淬灭反应,用二氯甲烷萃取水相,收集有机相,无水硫酸钠干燥,过滤,减压下除去挥发组份,然后用硅胶柱层析分离(洗脱液为石油醚(60-90℃)/乙酸乙酯/二氯甲烷,v/v/v=5∶1∶1),得到白色固体目标产物5b(87mg,收率67%)。目标产物通过核磁共振谱和高分辨质谱测定得到确认。
实施例15
依次称取β-烯胺酮2a(0.3mmol)、对氟苯磺酰肼3d(3.0mmol)和高氯酸锂(0.45mmol)于反应瓶中,插入铂电极和镍电极,在氩气保护下,加入甲苯溶剂10mL,电流调整为恒流10mA,反应瓶放入60℃油浴中反应10h。反应结束后,将混合物冷却至室温,加入饱和食盐水淬灭反应,用二氯甲烷萃取水相,收集有机相,无水硫酸钠干燥,过滤,减压下除去挥发组份,然后用硅胶柱层析分离(洗脱液为石油醚(60-90℃)/乙酸乙酯/二氯甲烷,v/v/v=5∶1∶1),得到白色固体目标产物5c(96mg,收率70%)。目标产物通过核磁共振谱和高分辨质谱测定得到确认。
实施例16
依次称取β-烯胺酮2a(0.3mmol)、噻吩磺酰肼3e(1.2mmol)和碘化钾(0.9mmol) 于反应瓶中,插入网状玻璃态碳电极和镍电极,在空气氛围下,加入DCE溶剂12mL,电流调整为恒流14mA,反应瓶在室温中反应12h。反应结束后,将混合物冷却至室温,加入饱和食盐水淬灭反应,用二氯甲烷萃取水相,收集有机相,无水硫酸钠干燥,过滤,减压下除去挥发组份,然后用硅胶柱层析分离(洗脱液为石油醚(60-90℃)/乙酸乙酯/二氯甲烷,v/v/v=5∶1∶1),得到白色固体目标产物5d(75mg,收率57%)。目标产物通过核磁共振谱和高分辨质谱测定得到确认。
实施例17
依次称取β-烯胺酮2a(0.3mmol)、萘磺酰肼3f(1.8mmol)和四丁基碘化胺(0.3mmol) 于反应瓶中,插入石墨毡电极和铁电极,在氮气保护下,加入DMSO溶剂8mL,电流调整为恒流20mA,反应瓶放入40℃油浴中反应6h。反应结束后,将混合物冷却至室温,加入饱和食盐水淬灭反应,用二氯甲烷萃取水相,收集有机相,无水硫酸钠干燥,过滤,减压下除去挥发组份,然后用硅胶柱层析分离(洗脱液为石油醚(60-90℃)/乙酸乙酯/二氯甲烷,v/v/v=5∶1∶1),得到白色固体目标产物5e(96mg,收率61%)。目标产物通过核磁共振谱和高分辨质谱测定得到确认。
实施例18
依次称取β-烯胺酮2b(0.3mmol)、对甲苯磺酰肼3a(3.3mmol)和四丁基四氟硼酸铵(0.9mmol)于反应瓶中,插入石墨电极和铂电极,在氮气保护下,加入DCM/H2O混合溶剂12mL,电流调整为恒流25mA,反应瓶放入35℃油浴中反应4h。反应结束后,将混合物冷却至室温,加入饱和食盐水淬灭反应,用二氯甲烷萃取水相,收集有机相,无水硫酸钠干燥,过滤,减压下除去挥发组份,然后用硅胶柱层析分离(洗脱液为石油醚(60-90℃)/乙酸乙酯/二氯甲烷,v/v/v=5∶1∶1),得到白色固体目标产物5f(87mg,收率 60%)。目标产物通过核磁共振谱和高分辨质谱测定得到确认。
实施例19
依次称取β-烯胺酮2c(0.3mmol)、对甲苯磺酰肼3a(3.6mmol)和碘化钾(0.45mmol)于反应瓶中,插入石墨毡电极和镍电极,在氩气保护下,加入1,4-二氧六环溶剂10mL,电流调整为恒流16mA,反应瓶放入60℃油浴中反应12h。反应结束后,将混合物冷却至室温,加入饱和食盐水淬灭反应,用二氯甲烷萃取水相,收集有机相,无水硫酸钠干燥,过滤,减压下除去挥发组份,然后用硅胶柱层析分离(洗脱液为石油醚(60-90℃)/ 乙酸乙酯/二氯甲烷,v/v/v=5∶1∶1),得到白色固体目标产物5g(123mg,收率79%)。目标产物通过核磁共振谱和高分辨质谱测定得到确认。
实施例20
依次称取β-烯胺酮2d(0.3mmol)、对甲苯磺酰肼3a(1.5mmol)和四丁基溴化铵(0.9mmol)于反应瓶中,插入石墨电极和铂电极,在氮气保护下,加入EtOH溶剂12mL,电流调整为恒流6mA,反应瓶放入40℃油浴中反应24h。反应结束后,将混合物冷却至室温,加入饱和食盐水淬灭反应,用二氯甲烷萃取水相,收集有机相,无水硫酸钠干燥,过滤,减压下除去挥发组份,然后用硅胶柱层析分离(洗脱液为石油醚(60-90℃)/乙酸乙酯/二氯甲烷,v/v/v=5∶1∶1),得到白色固体目标产物5h(107mg,收率71%)。目标产物通过核磁共振谱和高分辨质谱测定得到确认。
实施例21
依次称取β-烯胺酮2e(0.3mmol)、对甲苯磺酰肼3a(1.8mmol)和四丁基四氟硼酸铵(0.6mmol)于反应瓶中,插入网状玻璃态碳电极和铂电极,在空气氛围下,加入甲苯溶剂12mL,电流调整为恒流30mA,反应瓶在室温中反应4h。反应结束后,将混合物冷却至室温,加入饱和食盐水淬灭反应,用二氯甲烷萃取水相,收集有机相,无水硫酸钠干燥,过滤,减压下除去挥发组份,然后用硅胶柱层析分离(洗脱液为石油醚(60-90℃)/ 乙酸乙酯/二氯甲烷,v/v/v=5∶1∶1),得到白色固体目标产物5i(67mg,收率51%)。目标产物通过核磁共振谱和高分辨质谱测定得到确认。
实施例22
依次称取β-烯胺酮2f(0.3mmol)、对甲苯磺酰肼3a(3.0mmol)和碘化钠(0.9mmol)于反应瓶中,插入石墨毡电极和铁电极,在氩气保护下,加入DCM溶剂8mL,电流调整为恒流4mA,反应瓶放入60℃油浴中反应30h。反应结束后,将混合物冷却至室温,加入饱和食盐水淬灭反应,用二氯甲烷萃取水相,收集有机相,无水硫酸钠干燥,过滤,减压下除去挥发组份,然后用硅胶柱层析分离(洗脱液为石油醚(60-90℃)/乙酸乙酯/二氯甲烷,v/v/v=5∶1∶1),得到白色固体目标产物5j(123mg,收率79%)。目标产物通过核磁共振谱和高分辨质谱测定得到确认。
典型化合物表征数据
3-甲基-5-苯基-1,4-二对甲苯磺酰基-1H-吡唑(4a),白色固体.1H NMR(400MHz,CDCl3)δ7.55-7.48(m,3H),7.37(t,J=7.8Hz,2H),7.29-7.23(m,4H),7.12-7.04(m, 4H),2.56(s,3H),2.41(s,3H),2.35(s,3H);13C{1H}NMR(100MHz,CDCl3)δ151.11, 147.98,146.55,144.36,138.65,133.94,130.78,130.26,130.04,129.48,128.45,127.47,127.22,126.28,124.21,21.82,21.60,14.17.
1,4-双((4-甲氧基苯基)磺酰基)-3-甲基-5-苯基-1H-吡唑(4b),白色固体.1HNMR(400 MHz,CDCl3)δ7.56(d,J=9.0Hz,2H),7.52-7.47(m,1H),7.36(t,J=7.7Hz,2H),7.29(d, J=8.9Hz,2H),7.06(dd,J=8.2,1.1Hz,2H),6.88(d,J=9.1Hz,2H),6.74(d,J=9.0Hz,2H),3.84(s,3H),3.79(s,3H),2.56(s,3H);13C{1H}NMR(100MHz,CDCl3)δ164.81,163.42,150.80,147.49,133.21,130.87,130.79,130.21,129.42,128.04,127.50,126.45,124.41,114.63,114.02,55.93,55.72,14.19.
3-甲基-5-苯基-1,4-双(苯基磺酰基)-1H-吡唑(4c),白色固体.1H NMR(400MHz,CDCl3)δ7.67-7.61(m,3H),7.53-7.44(m,4H),7.40-7.28(m,6H),7.04(d,J=7.2Hz, 2H),2.58(s,3H);13C{1H}NMR(100MHz,CDCl3)δ151.35,148.33,141.46,136.96, 135.13,133.42,130.78,130.40,129.47,128.93,128.44,127.62,127.22,126.07,14.24.
1,4-双((4-氟苯基)磺酰基)-3-甲基-5-苯基-1H-吡唑(4d),白色固体.1HNMR(400MHz, CDCl3)δ7.71-7.65(m,2H),7.52(t,J=7.5Hz,1H),7.41-7.33(m,4H),7.14(t,J=8.5 Hz,2H),7.04(d,J=7.3Hz,2H),6.96(t,J=8.5Hz,2H),2.57(s,3H);13C{1H}NMR(100MHz,CDCl3)δ166.55(d,J=259.6Hz),165.51(d,J=256.5Hz),151.37,148.11,137.43(d,J=3.1Hz),132.79(d,J=3.1Hz),131.60(d,J=10.0Hz),130.70,130.58,130.15(d,J=9.7 Hz),127.77,125.96,124.10,116.99(d,J=23.0Hz),116.17(d,J=22.7Hz),14.25;19FNMR(376MHz,CDCl3)δ-99.87(s,1F),-103.52(s,1F).
3-甲基-5-苯基-1,4-双(噻吩-2-磺酰基)-1H-吡唑(4e),白色固体.1H NMR(400MHz, CDCl3)δ7.75(dd,J=5.0,1.4Hz,1H),7.56-7.50(m,3H),7.42(t,J=7.7Hz,2H),7.19 (dd,J=8.3,1.2Hz,2H),7.13(dd,J=3.8,1.4Hz,1H),7.07(dd,J=5.0,3.9Hz,1H),6.91 (dd,J=5.0,3.8Hz,1H),2.59(s,3H);13C{1H}NMR(100MHz,CDCl3)δ151.42,148.24,142.98,136.65,136.41,133.94,133.31,130.50,128.00,127.72,127.54,126.12,124.42,14.22.
3-甲基-5-(对甲苯基)-1,4-二对甲苯磺酰基-1H-吡唑(4f),白色固体.1HNMR(400MHz, CDCl3)δ7.54(d,J=8.4Hz,2H),7.29(d,J=8.3Hz,2H),7.25(d,J=7.9Hz,2H),7.18(d,J=7.9Hz,2H),7.11(d,J=8.1Hz,2H),6.97(d,J=8.1Hz,2H),2.54(s,3H),2.46(s,3H), 2.42(s,3H),2.36(s,3H);13C{1H}NMR(100MHz,CDCl3)δ151.22,148.43,146.50,144.36,140.49,138.79,134.07,130.69,130.04,129.49,128.50,128.24,127.27,124.15,123.28,21.87,21.75,21.66,14.21.
5-(4-甲氧基苯基)-3-甲基-1,4-二对甲苯磺酰基-1H-吡唑(4g),白色固体.1HNMR(400 MHz,CDCl3)δ7.52(d,J=8.4Hz,2H),7.28(d,J=8.3Hz,2H),7.24(d,J=8.1Hz,2H), 7.11(d,J=8.0Hz,2H),7.00(d,J=8.8Hz,2H),6.88(d,J=8.8Hz,2H),3.89(s,3H),2.54 (s,3H),2.41(s,3H),2.35(s,3H);13C{1H}NMR(100MHz,CDCl3)δ161.18,151.20,148.32,146.47,144.33,138.80,134.08,130.03,129.49,128.43,127.22,117.99,112.97,55.44,21.86,21.65,14.26.
5-(4-氯苯基)-3-甲基-1,4-二对甲苯磺酰基-1H-吡唑(4h),白色固体.1H NMR(400MHz, CDCl3)δ7.55(d,J=8.4Hz,2H),7.36(d,J=8.5Hz,2H),7.30(d,J=8.3Hz,2H),7.27(d, J=8.4Hz,2H),7.14(d,J=8.1Hz,2H),7.02(d,J=8.5Hz,2H),2.54(s,3H),2.42(s,3H), 2.37(s,3H).13C{1H}NMR(100MHz,CDCl3)δ151.31,146.81,146.67,144.69,138.57, 136.77,133.86,132.15,130.18,129.65,128.46,127.92,127.23,124.82,124.53,21.90,21.68, 14.14.
3-甲基-5-(2-萘基)-1,4-二对甲苯磺酰基-1H-吡唑(4i),白色固体.1H NMR(400MHz, CDCl3)δ7.92(d,J=8.0Hz,1H),7.82(d,J=8.5Hz,1H),7.72(d,J=7.9Hz,1H),7.63- 7.53(m,2H),7.49(d,J=8.4Hz,2H),7.40(s,1H),7.24-7.17(m,4H),7.15(dd,J=8.4,1.7 Hz,1H),6.94(d,J=8.0Hz,2H),2.62(s,3H),2.39(s,3H),2.26(s,3H);13C{1H}NMR(100 MHz,CDCl3)δ151.13,147.77,146.58,144.39,138.46,133.95,133.71,131.98,130.83, 130.00,129.35,128.48,128.40,127.98,127.59,127.37,127.30,127.13,126.77,124.63, 123.66,21.82,21.53,14.24.
5-(2-呋喃基)-3-甲基-1,4-二对甲苯磺酰基-1H-吡唑(4j),白色固体.1H NMR(400MHz, CDCl3)δ7.74(d,J=8.4Hz,2H),7.61(dd,J=1.7,0.6Hz,1H),7.50(d,J=8.3Hz,2H), 7.31(d,J=8.1Hz,2H),7.21(d,J=8.0Hz,2H),6.72(dd,J=3.4,0.7Hz,1H),6.60(dd,J= 3.4,1.8Hz,1H),2.50(s,3H),2.42(s,3H),2.37(s,3H);13C{1H}NMR(100MHz,CDCl3)δ 151.29,146.74,144.76,144.70,138.59,137.62,136.91,133.72,130.16,129.77,128.67, 127.31,125.81,116.44,111.49,21.90,21.69,14.02.
3,5-二甲基-1,4-二对甲苯磺酰基-1H-吡唑:(4k),白色固体.1HNMR(400MHz,CDCl3) δ7.85(d,J=8.4Hz,2H),7.72(d,J=8.3Hz,2H),7.34(d,J=8.1Hz,2H),7.30(d,J=8.0 Hz,2H),2.83(s,3H),2.43(s,3H),2.40(s,3H),2.35(s,3H);13C{1H}NMR(100MHz,CDCl3)δ151.32,146.78,146.67,144.65,139.33,134.03,130.36,130.05,128.26,126.79,121.87,21.87,21.67,13.82,11.84.
3,5-二乙基-1,4-二对甲苯磺酰基-1H-吡唑:(4l),白色固体.1H NMR(400MHz,CDCl3) δ7.89(d,J=8.4Hz,2H),7.73(d,J=8.3Hz,2H),7.34(d,J=8.1Hz,2H),7.30(d,J=8.1 Hz,2H),3.33(q,J=7.4Hz,2H),2.74(q,J=7.4Hz,2H),2.43(s,3H),2.41(s,3H),1.23(t, J=7.4Hz,3H),1.15(t,J=7.4Hz,3H);13C{1H}NMR(100MHz,CDCl3)δ156.12,152.89, 146.48,144.56,139.57,134.30,130.14,129.97,128.54,126.95,120.28,21.88,21.70,21.10, 19.03,14.89,12.15.
5-苯基-1,4-二对甲苯磺酰基-1H-吡唑:(5a),白色固体.1H NMR(400MHz,CDCl3)δ8.15(s,1H),7.58-7.50(m,3H),7.37(t,J=7.8Hz,2H),7.26(d,J=8.1Hz,2H),7.21(d,J=8.3Hz,2H),7.09-7.04(m,4H),2.42(s,3H),2.34(s,3H);13C{1H}NMR(100MHz, CDCl3)δ146.92,146.51,144.55,141.74,137.91,133.67,130.79,130.51,130.17,129.51,128.63,127.72,127.56,126.94,125.46,21.89,21.66.
5-苯基-1,4-双(苯基磺酰基)-1H-吡唑:(5b),白色固体.1H NMR(400MHz,CDCl3)δ8.19(s,1H),7.70-7.62(m,3H),7.54-7.44(m,4H),7.39-7.31(m,4H),7.27(t,J=7.8 Hz,2H),7.04(d,J=7.6Hz,2H);13C{1H}NMR(100MHz,CDCl3)δ141.81,140.60, 136.59,135.38,133.52,130.66,130.58,129.54,128.89,128.51,127.79,127.48,126.72, 125.18.
1,4-双((4-氟苯基)磺酰基)-5-苯基-1H-吡唑:(5c),白色固体.1H NMR(400MHz,CDCl3) δ8.18(s,1H),7.75-7.68(m,2H),7.55(t,J=7.5Hz,1H),7.40(t,J=7.7Hz,2H),7.36- 7.29(m,2H),7.16(t,J=8.5Hz,2H),7.07(d,J=7.3Hz,2H),6.94(t,J=8.5Hz,2H);13C{1H}NMR(100MHz,CDCl3)δ166.71(d,J=260.2Hz),165.61(d,J=256.9Hz), 146.64,141.81,136.62(d,J=2.6Hz),132.48(d,J=3.1Hz),131.77(d,J=10.1Hz),130.82,130.67,130.47(d,J=9.7Hz),127.94,126.74,125.14,117.12(d,J=23.1Hz),116.20(d,J= 22.7Hz);19F NMR(376MHz,CDCl3)δ-99.31(s,1F),-103.23(s,1F).
5-苯基-1,4-双(噻吩-2-磺酰基)-1H-吡唑:(5d),白色固体.1H NMR(400MHz,CDCl3) δ8.19(s,1H),7.78(dd,J=4.9,1.0Hz,1H),7.58-7.51(m,3H),7.42(t,J=7.7Hz,2H), 7.21(d,J=7.5Hz,2H),7.11-7.06(m,1H),7.03(dd,J=3.7,0.9Hz,1H),6.89-6.85(m, 1H);13C{1H}NMR(100MHz,CDCl3)δ146.73,141.89,141.83,137.10,136.79,136.04,134.39,133.92,130.77,130.62,128.16,127.93,127.58,127.11,125.20.
1,4-双(萘-2-磺酰基)-5-苯基-1H-吡唑:(5e),白色固体.1H NMR(400MHz,CDCl3)δ8.26(s,1H),8.17(s,1H),7.89(t,J=7.9Hz,2H),7.82(t,J=7.8Hz,2H),7.75(d,J=9.9Hz, 2H),7.71-7.58(m,5H),7.56-7.48(m,2H),7.41(dd,J=8.6,1.6Hz,1H),7.30-7.23(m, 3H),6.98(d,J=7.5Hz,2H);13C{1H}NMR(100MHz,CDCl3)δ146.65,141.72,137.22,135.78,134.99,133.16,131.70,131.64,131.19,130.74,130.61,130.39,129.96,129.70,129.48,129.40,129.31,129.24,128.19,128.09,127.83,127.65,127.51,126.65,125.26,122.15.
5-(4-甲氧基苯基)-1,4-二对甲苯磺酰基-1H-吡唑:(5f),白色固体.1H NMR(400MHz, CDCl3)δ8.12(s,1H),7.54(d,J=8.3Hz,2H),7.28-7.21(m,4H),7.07(d,J=8.2Hz,2H), 7.02(d,J=8.7Hz,2H),6.89(d,J=8.7Hz,2H),3.89(s,3H),2.40(s,3H),2.33(s,3H);13C{1H}NMR(100MHz,CDCl3)δ161.33,146.80,146.78,144.48,141.78,137.97,133.68, 132.31,130.10,129.46,128.51,127.48,126.79,117.06,113.14,55.45,21.84,21.62.
1,4-二对甲苯磺酰基-5-(4-(三氟甲基)苯基)-1H-吡唑:(5g),白色固体.1H NMR(400 MHz,CDCl3)δ8.15(s,1H),7.63(d,J=8.1Hz,2H),7.60(d,J=8.4Hz,2H),7.30(d,J=8.2Hz,2H),7.23(d,J=8.2Hz,4H),7.08(d,J=8.1Hz,2H),2.43(s,3H),2.35(s,3H);13C{1H}NMR(100MHz,CDCl3)δ147.32,144.95,144.47,141.79,137.65,133.38,132.45 (q,J=33.0Hz),131.27,130.35,129.65,129.51,128.65,127.52,127.49,124.69(q,J=3.7 Hz),123.81(q,J=272.5Hz),21.92,21.63;19F NMR(376MHz,CDCl3)δ-62.86(s,3F).
5-(2-萘基)-1,4-二对甲苯磺酰基-1H-吡唑:(5h),白色固体.1H NMR(400MHz,CDCl3) δ8.21(s,1H),7.93(d,J=8.0Hz,1H),7.82(d,J=8.5Hz,1H),7.73(d,J=7.9Hz,1H), 7.65-7.56(m,2H),7.54(d,J=8.4Hz,2H),7.45(s,1H),7.22(d,J=8.1Hz,2H),7.17-7.12(m,3H),6.90(d,J=8.1Hz,2H),2.40(s,3H),2.27(s,3H);13C{1H}NMR(100MHz, CDCl3)δ146.94,146.39,144.53,141.69,137.74,133.80,133.66,132.06,130.90,130.13,129.38,128.64,128.49,127.99,127.78,127.60,127.37,127.30,127.18,126.89,21.87,21.56.
5-(2-呋喃)-1,4-二对甲苯磺酰基-1H-吡唑:(5i),白色固体.1H NMR(400MHz,CDCl3) δ8.09(s,1H),7.79(d,J=8.4Hz,2H),7.62-7.59(m,1H),7.48(d,J=8.3Hz,2H),7.32(d, J=8.3Hz,2H),7.19(d,J=8.2Hz,2H),6.84(d,J=3.4Hz,1H),6.61(dd,J=3.4,1.8Hz, 1H),2.43(s,3H),2.37(s,3H);13C{1H}NMR(100MHz,CDCl3)δ147.09,145.15,144.90, 141.9l,138.00,136.50,136.05,133.38,130.25,129.78,128.88,127.91,127.55,116.91, 111.67,21.93,21.70.
5-(2-噻吩)-1,4-二对甲苯磺酰基-1H-吡唑:(5j),白色固体.1H NMR(400MHz,CDCl3) δ8.15(s,1H),7.64(d,J=8.3Hz,2H),7.61(dd,J=5.0,0.9Hz,1H),7.32(d,J=8.2Hz,2H), 7.28(d,J=8.2Hz,2H),7.15-7.10(m,3H),7.04(dd,J=3.5,1.0Hz,1H),2.42(s,3H),2.36 (s,3H);13C{1H}NMR(100MHz,CDCl3)δ147.04,144.75,141.79,139.65,137.60,133.44, 133.37,130.55,130.23,129.63,128.72,128.43,127.62,126.73,123.06,21.93,21.71。
Claims (8)
3.根据权利要求2所述的多取代吡唑类化合物的制备方法,其特征在于:所述正极和负极分别独立选自石墨电极、网状玻璃态碳电极、石墨毡电极、铂电极、镍电极或铁电极中的一种。
4.根据权利要求2所述的多取代吡唑类化合物的制备方法,其特征在于:所述电解质为四丁基碘化铵、四丁基溴化铵、碘化钾、碘化钠、高氯酸锂或四丁基四氟硼酸铵中的一种或多种;电解质的用量为β-烯胺酮类化合物1或2的50~300mol%。
5.根据权利要求2所述的多取代吡唑类化合物的制备方法,其特征在于:β-烯胺酮类化合物1或2和磺酰肼类化合物3的摩尔比为1∶4-1∶12。
6.根据权利要求2所述的多取代吡唑类化合物的制备方法,其特征在于:反应溶剂为乙醇(EtOH)、乙腈(MeCN)、甲苯、1,4-二氧六环、二甲基亚砜(DMSO)、1,2-二氯甲烷(DCM)、1,2-二氯乙烷(DCE)或水(H2O)中的一种或两种的混合物。
7.根据权利要求2所述的多取代吡唑类化合物的制备方法,其特征在于:所述恒电流为1~40mA。
8.根据权利要求2所述的多取代吡唑类化合物的制备方法,其特征在于:反应气氛为空气、氧气、氮气或氩气;反应时间为1-48h;反应温度为20-80℃。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202111584358.XA CN114411178B (zh) | 2021-12-22 | 2021-12-22 | 多取代吡唑类化合物及其电化学合成方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202111584358.XA CN114411178B (zh) | 2021-12-22 | 2021-12-22 | 多取代吡唑类化合物及其电化学合成方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN114411178A true CN114411178A (zh) | 2022-04-29 |
CN114411178B CN114411178B (zh) | 2023-06-30 |
Family
ID=81267290
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202111584358.XA Active CN114411178B (zh) | 2021-12-22 | 2021-12-22 | 多取代吡唑类化合物及其电化学合成方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN114411178B (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN118026938A (zh) * | 2024-04-08 | 2024-05-14 | 江西本草天工科技有限责任公司 | 一种吡唑啉酮酯类化合物及其电化学合成方法 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112961109A (zh) * | 2021-01-27 | 2021-06-15 | 台州学院 | 一种1,4-双磺酰化的全取代吡唑类化合物及其制备和应用 |
-
2021
- 2021-12-22 CN CN202111584358.XA patent/CN114411178B/zh active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112961109A (zh) * | 2021-01-27 | 2021-06-15 | 台州学院 | 一种1,4-双磺酰化的全取代吡唑类化合物及其制备和应用 |
Non-Patent Citations (3)
Title |
---|
JIAWEN CHEN ET AL.: "Transition Metal-Free De Novo Synthesis of Sulfonated Pyrazoles from Sulfonyl Hydrazides, 1,3-Diketones, and Sodium Sulfinates at Room Temperature" * |
LIHONG TIAN ET AL.: "Transition Metal-free C-H Sulfonylation and Pyrazole Annulation Cascade for the Synthesis of 4-Sulfonyl Pyrazoles" * |
YANHUI GUO ET AL.: "Domino C-H Sulfonylation and Pyrazole Annulation for Fully Substituted Pyrazole Synthesis in Water Using Hydrophilic Enaminones" * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN118026938A (zh) * | 2024-04-08 | 2024-05-14 | 江西本草天工科技有限责任公司 | 一种吡唑啉酮酯类化合物及其电化学合成方法 |
Also Published As
Publication number | Publication date |
---|---|
CN114411178B (zh) | 2023-06-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Hu et al. | Synthesis of Multi‐substituted Dihydropyrazoles by Copper‐Mediated [4+ 1] Cycloaddition Reaction of N‐Sulfonylhydrazones and Sulfoxonium Ylides | |
AU2007332406B2 (en) | Process for production of anthranilamide compound | |
Tanimoto et al. | Aerobic oxidative sulfenylation of pyrazolones and pyrazoles catalyzed by metal-free flavin–iodine catalysis | |
WO2004052847A2 (en) | Tricyclic steroid hormone nuclear receptor modulators | |
Duan et al. | NH4I-Triggered [4+ 2] Annulation of α, β-Unsaturated Ketoxime Acetates with N-Acetyl Enamides for the Synthesis of Pyridines | |
Feng et al. | Electrochemical Synthesis of Polysubstituted Sulfonated Pyrazoles via Cascade Intermolecular Condensation, Radical–Radical Cross Coupling Sulfonylation, and Pyrazole Annulation | |
CN111690947B (zh) | 三氟甲基化芳基酰胺衍生物的电化学合成方法 | |
Xiao et al. | RuHCl (CO)(PPh3) 3-Catalyzed Direct Amidation of Arene C–H Bond with Azides | |
Zhao et al. | An electrochemical multicomponent [3+ 1+ 1] annulations to synthesize polysubstituted 1, 2, 4-triazoles | |
CN114411178A (zh) | 多取代吡唑类化合物及其电化学合成方法 | |
CN110483400A (zh) | 一种吡唑衍生物的制备方法 | |
Wu et al. | Silver-Catalyzed Regioselective Synthesis of Highly Substituted 2-Trifluoromethyl Pyrroles | |
Pramanik et al. | Steric-Hindrance-Induced Diastereoselective Radical Nitration of 3-Alkylidene-2-oxindoles Followed by Tosylhydrazine-Mediated Sulfonation | |
Suresh et al. | Pd-Catalyzed Sequential Electrophilic Cyclization/Selective C–H Annulation Cascade: Synthesis of Isoxazole-Phthalimide-Fused Poly-Heterocyclics | |
Liu et al. | Assembly of 3-(trifluoromethyl) thiochromenes via a regioselective trifluoromethylthioarylation of (3-arylprop-2-ynyl) oxybenzenes with trifluoromethanesulfanylamide | |
CN105669667B (zh) | 三氟甲基吡咯并喹啉衍生物及其合成方法 | |
CN106187897B (zh) | 一种稠环吡唑类化合物的合成方法 | |
CN112321583A (zh) | 一种1,2,4-噻二唑化合物的合成方法 | |
CN115477627B (zh) | 一种多取代2-呋喃酮类化合物及其合成方法 | |
Phetcharawetch et al. | Synthesis of 3-((trifluoromethyl) thio) indoles via trifluoromethylthiolation of 2-alkynyl azidoarenes with AgSCF3 | |
CN112876416B (zh) | 一种二芳甲酰基取代的吡唑类化合物及其制备方法 | |
Bisht et al. | Transition-metal-free addition reaction for the synthesis of 3-(aminobenzylidene/aminoalkylidene) indolin-2-ones and its synthetic applications | |
Chen et al. | Synthesis of 2-(Trifluoromethyl)-[1, 2, 4] triazolo [5, 1-a] isoquinoline via Cycloaddition of C, N-Cyclic Azomethine Imine with CF3CN | |
Chen et al. | Cu (I)-Catalyzed Three-Component Annulation for the Synthesis of 3-Acyl Imidazo [1, 5-a] Pyridines from 2-Pyridinyl-Substituted p-Quinone Methides, Terminal Alkynes, and TsN3 Using O2 as the Oxygen Source | |
CN109879865B (zh) | 一种2-芳基-5-(2-喹啉基)-1,3,4-噁二唑类化合物的制备方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |