CN111808044A - 过渡金属催化的卡宾插入/环合反应高效合成氨基噻唑衍生物的绿色合成新方法 - Google Patents
过渡金属催化的卡宾插入/环合反应高效合成氨基噻唑衍生物的绿色合成新方法 Download PDFInfo
- Publication number
- CN111808044A CN111808044A CN202010610128.5A CN202010610128A CN111808044A CN 111808044 A CN111808044 A CN 111808044A CN 202010610128 A CN202010610128 A CN 202010610128A CN 111808044 A CN111808044 A CN 111808044A
- Authority
- CN
- China
- Prior art keywords
- bis
- rhodium
- dimer
- palladium
- unsubstituted
- 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
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- HZVOZRGWRWCICA-UHFFFAOYSA-N methanediyl Chemical compound [CH2] HZVOZRGWRWCICA-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 238000007363 ring formation reaction Methods 0.000 title claims abstract description 10
- 238000001308 synthesis method Methods 0.000 title claims abstract description 10
- 238000006713 insertion reaction Methods 0.000 title claims abstract description 9
- 230000002194 synthesizing effect Effects 0.000 title claims abstract description 9
- 229910052723 transition metal Inorganic materials 0.000 title claims abstract description 9
- 150000003624 transition metals Chemical class 0.000 title claims abstract description 9
- 230000037431 insertion Effects 0.000 title claims abstract description 8
- RAIPHJJURHTUIC-UHFFFAOYSA-N 1,3-thiazol-2-amine Chemical class NC1=NC=CS1 RAIPHJJURHTUIC-UHFFFAOYSA-N 0.000 title abstract description 15
- 238000006555 catalytic reaction Methods 0.000 title description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 10
- 239000011593 sulfur Substances 0.000 claims abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 3
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 claims description 28
- 238000006243 chemical reaction Methods 0.000 claims description 20
- 239000002904 solvent Substances 0.000 claims description 17
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 16
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical compound ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 claims description 14
- 239000012295 chemical reaction liquid Substances 0.000 claims description 14
- 238000010898 silica gel chromatography Methods 0.000 claims description 14
- 150000001875 compounds Chemical class 0.000 claims description 10
- -1 thiourea compound Chemical class 0.000 claims description 8
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 6
- 239000003054 catalyst Substances 0.000 claims description 6
- PIBWKRNGBLPSSY-UHFFFAOYSA-L palladium(II) chloride Chemical compound Cl[Pd]Cl PIBWKRNGBLPSSY-UHFFFAOYSA-L 0.000 claims description 6
- 125000000623 heterocyclic group Chemical group 0.000 claims description 5
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 5
- YBCAZPLXEGKKFM-UHFFFAOYSA-K ruthenium(iii) chloride Chemical compound [Cl-].[Cl-].[Cl-].[Ru+3] YBCAZPLXEGKKFM-UHFFFAOYSA-K 0.000 claims description 5
- QVLTVILSYOWFRM-UHFFFAOYSA-L CC1=C(C)C(C)([Rh](Cl)Cl)C(C)=C1C Chemical class CC1=C(C)C(C)([Rh](Cl)Cl)C(C)=C1C QVLTVILSYOWFRM-UHFFFAOYSA-L 0.000 claims description 4
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 4
- 125000002252 acyl group Chemical group 0.000 claims description 4
- 125000003118 aryl group Chemical group 0.000 claims description 4
- 125000002541 furyl group Chemical group 0.000 claims description 4
- 150000002430 hydrocarbons Chemical group 0.000 claims description 4
- 125000001041 indolyl group Chemical group 0.000 claims description 4
- 229910052741 iridium Inorganic materials 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 125000001624 naphthyl group Chemical group 0.000 claims description 4
- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- 125000004076 pyridyl group Chemical group 0.000 claims description 4
- 125000000168 pyrrolyl group Chemical group 0.000 claims description 4
- 125000000547 substituted alkyl group Chemical group 0.000 claims description 4
- 125000005346 substituted cycloalkyl group Chemical group 0.000 claims description 4
- 150000007979 thiazole derivatives Chemical class 0.000 claims description 4
- 125000001544 thienyl group Chemical group 0.000 claims description 4
- XKIATPBYVZUXSX-UHFFFAOYSA-L CC1=C(C(=C(C1(C(=O)[Co](I)I)C)C)C)C Chemical compound CC1=C(C(=C(C1(C(=O)[Co](I)I)C)C)C)C XKIATPBYVZUXSX-UHFFFAOYSA-L 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 claims description 3
- CYPYTURSJDMMMP-WVCUSYJESA-N (1e,4e)-1,5-diphenylpenta-1,4-dien-3-one;palladium Chemical compound [Pd].[Pd].C=1C=CC=CC=1\C=C\C(=O)\C=C\C1=CC=CC=C1.C=1C=CC=CC=1\C=C\C(=O)\C=C\C1=CC=CC=C1.C=1C=CC=CC=1\C=C\C(=O)\C=C\C1=CC=CC=C1 CYPYTURSJDMMMP-WVCUSYJESA-N 0.000 claims description 2
- UKSZBOKPHAQOMP-SVLSSHOZSA-N (1e,4e)-1,5-diphenylpenta-1,4-dien-3-one;palladium Chemical compound [Pd].C=1C=CC=CC=1\C=C\C(=O)\C=C\C1=CC=CC=C1.C=1C=CC=CC=1\C=C\C(=O)\C=C\C1=CC=CC=C1 UKSZBOKPHAQOMP-SVLSSHOZSA-N 0.000 claims description 2
- VYXHVRARDIDEHS-UHFFFAOYSA-N 1,5-cyclooctadiene Chemical compound C1CC=CCCC=C1 VYXHVRARDIDEHS-UHFFFAOYSA-N 0.000 claims description 2
- 239000004912 1,5-cyclooctadiene Substances 0.000 claims description 2
- UCXDWSTYBSBFFB-UHFFFAOYSA-L 1-methyl-4-propan-2-ylbenzene;ruthenium(2+);dichloride Chemical class Cl[Ru]Cl.CC(C)C1=CC=C(C)C=C1 UCXDWSTYBSBFFB-UHFFFAOYSA-L 0.000 claims description 2
- IWVYSPGGCFWGGC-UHFFFAOYSA-L Cl[Co](C1(C(=C(C(=C1C)C)C)C)C)Cl Chemical class Cl[Co](C1(C(=C(C(=C1C)C)C)C)C)Cl IWVYSPGGCFWGGC-UHFFFAOYSA-L 0.000 claims description 2
- 229910021638 Iridium(III) chloride Inorganic materials 0.000 claims description 2
- 229910021604 Rhodium(III) chloride Inorganic materials 0.000 claims description 2
- KTYAQHYBYRVCGD-UHFFFAOYSA-N [Ir].COC1=CC=CCCCC1 Chemical class [Ir].COC1=CC=CCCCC1 KTYAQHYBYRVCGD-UHFFFAOYSA-N 0.000 claims description 2
- WXNOJTUTEXAZLD-UHFFFAOYSA-L benzonitrile;dichloropalladium Chemical compound Cl[Pd]Cl.N#CC1=CC=CC=C1.N#CC1=CC=CC=C1 WXNOJTUTEXAZLD-UHFFFAOYSA-L 0.000 claims description 2
- 229910017052 cobalt Inorganic materials 0.000 claims description 2
- 239000010941 cobalt Substances 0.000 claims description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 2
- GVPFVAHMJGGAJG-UHFFFAOYSA-L cobalt dichloride Chemical compound [Cl-].[Cl-].[Co+2] GVPFVAHMJGGAJG-UHFFFAOYSA-L 0.000 claims description 2
- NXQGGXCHGDYOHB-UHFFFAOYSA-L cyclopenta-1,4-dien-1-yl(diphenyl)phosphane;dichloropalladium;iron(2+) Chemical compound [Fe+2].Cl[Pd]Cl.[CH-]1C=CC(P(C=2C=CC=CC=2)C=2C=CC=CC=2)=C1.[CH-]1C=CC(P(C=2C=CC=CC=2)C=2C=CC=CC=2)=C1 NXQGGXCHGDYOHB-UHFFFAOYSA-L 0.000 claims description 2
- YNHIGQDRGKUECZ-UHFFFAOYSA-N dichloropalladium;triphenylphosphanium Chemical compound Cl[Pd]Cl.C1=CC=CC=C1[PH+](C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1[PH+](C=1C=CC=CC=1)C1=CC=CC=C1 YNHIGQDRGKUECZ-UHFFFAOYSA-N 0.000 claims description 2
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 claims description 2
- MMAGMBCAIFVRGJ-UHFFFAOYSA-J iridium(3+);1,2,3,4,5-pentamethylcyclopenta-1,3-diene;tetrachloride Chemical compound Cl[Ir+]Cl.Cl[Ir+]Cl.CC=1C(C)=C(C)[C-](C)C=1C.CC=1C(C)=C(C)[C-](C)C=1C MMAGMBCAIFVRGJ-UHFFFAOYSA-J 0.000 claims description 2
- PENAXHPKEVTBLF-UHFFFAOYSA-L palladium(2+);prop-1-ene;dichloride Chemical compound [Pd+]Cl.[Pd+]Cl.[CH2-]C=C.[CH2-]C=C PENAXHPKEVTBLF-UHFFFAOYSA-L 0.000 claims description 2
- YJVFFLUZDVXJQI-UHFFFAOYSA-L palladium(ii) acetate Chemical compound [Pd+2].CC([O-])=O.CC([O-])=O YJVFFLUZDVXJQI-UHFFFAOYSA-L 0.000 claims description 2
- SVOOVMQUISJERI-UHFFFAOYSA-K rhodium(3+);triacetate Chemical compound [Rh+3].CC([O-])=O.CC([O-])=O.CC([O-])=O SVOOVMQUISJERI-UHFFFAOYSA-K 0.000 claims description 2
- SONJTKJMTWTJCT-UHFFFAOYSA-K rhodium(iii) chloride Chemical compound [Cl-].[Cl-].[Cl-].[Rh+3] SONJTKJMTWTJCT-UHFFFAOYSA-K 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- DANYXEHCMQHDNX-UHFFFAOYSA-K trichloroiridium Chemical compound Cl[Ir](Cl)Cl DANYXEHCMQHDNX-UHFFFAOYSA-K 0.000 claims description 2
- FEQPHYCEZKWPNE-UHFFFAOYSA-K trichlororhodium;triphenylphosphane Chemical compound Cl[Rh](Cl)Cl.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 FEQPHYCEZKWPNE-UHFFFAOYSA-K 0.000 claims description 2
- CMTKJYPJPSONIT-UHFFFAOYSA-K trichlororuthenium;triphenylphosphane Chemical compound Cl[Ru](Cl)Cl.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 CMTKJYPJPSONIT-UHFFFAOYSA-K 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 2
- POYBJJLKGYXKJH-PHFPKPIQSA-N (1z,5z)-cycloocta-1,5-diene;2-methanidylprop-1-ene;ruthenium(2+) Chemical compound [Ru+2].CC([CH2-])=C.CC([CH2-])=C.C\1C\C=C/CC\C=C/1 POYBJJLKGYXKJH-PHFPKPIQSA-N 0.000 claims 1
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 claims 1
- NWBUFJZQWAXFGH-UHFFFAOYSA-K [Ir](Cl)(Cl)Cl.C1=CCCC=CCC1.C1=CCCC=CCC1 Chemical compound [Ir](Cl)(Cl)Cl.C1=CCCC=CCC1.C1=CCCC=CCC1 NWBUFJZQWAXFGH-UHFFFAOYSA-K 0.000 claims 1
- 239000000539 dimer Substances 0.000 claims 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims 1
- BDDWSAASCFBVBK-UHFFFAOYSA-N rhodium;triphenylphosphane Chemical compound [Rh].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 BDDWSAASCFBVBK-UHFFFAOYSA-N 0.000 claims 1
- 229910052707 ruthenium Inorganic materials 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 20
- 239000003153 chemical reaction reagent Substances 0.000 abstract description 3
- 238000010189 synthetic method Methods 0.000 abstract 1
- HEDRZPFGACZZDS-MICDWDOJSA-N Trichloro(2H)methane Chemical compound [2H]C(Cl)(Cl)Cl HEDRZPFGACZZDS-MICDWDOJSA-N 0.000 description 18
- 238000001644 13C nuclear magnetic resonance spectroscopy Methods 0.000 description 13
- 238000005160 1H NMR spectroscopy Methods 0.000 description 13
- 239000003921 oil Substances 0.000 description 13
- 230000015572 biosynthetic process Effects 0.000 description 9
- 238000003786 synthesis reaction Methods 0.000 description 9
- 239000007787 solid Substances 0.000 description 7
- VUPQHSHTKBZVML-UHFFFAOYSA-J rhodium(3+);tetraacetate Chemical compound [Rh+3].[Rh+3].CC([O-])=O.CC([O-])=O.CC([O-])=O.CC([O-])=O VUPQHSHTKBZVML-UHFFFAOYSA-J 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- 238000005481 NMR spectroscopy Methods 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 3
- 229950003476 aminothiazole Drugs 0.000 description 3
- 150000008049 diazo compounds Chemical class 0.000 description 3
- 239000002243 precursor Substances 0.000 description 3
- 150000003585 thioureas Chemical class 0.000 description 3
- KHJXEDCZDBSVBE-UHFFFAOYSA-M Cl[Ir].C1CC=CCCC=C1.C1CC=CCCC=C1 Chemical class Cl[Ir].C1CC=CCCC=C1.C1CC=CCCC=C1 KHJXEDCZDBSVBE-UHFFFAOYSA-M 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- FZWLAAWBMGSTSO-UHFFFAOYSA-N Thiazole Chemical compound C1=CSC=N1 FZWLAAWBMGSTSO-UHFFFAOYSA-N 0.000 description 2
- FULDTMJKDVCBAL-UHFFFAOYSA-M [Cl-].[Rh+].C1CC=CCCC=C1.C1CC=CCCC=C1 Chemical class [Cl-].[Rh+].C1CC=CCCC=C1.C1CC=CCCC=C1 FULDTMJKDVCBAL-UHFFFAOYSA-M 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- YZUKKTCDYSIWKJ-UHFFFAOYSA-N (2-chlorophenyl)thiourea Chemical compound NC(=S)NC1=CC=CC=C1Cl YZUKKTCDYSIWKJ-UHFFFAOYSA-N 0.000 description 1
- GHYOCDFICYLMRF-UTIIJYGPSA-N (2S,3R)-N-[(2S)-3-(cyclopenten-1-yl)-1-[(2R)-2-methyloxiran-2-yl]-1-oxopropan-2-yl]-3-hydroxy-3-(4-methoxyphenyl)-2-[[(2S)-2-[(2-morpholin-4-ylacetyl)amino]propanoyl]amino]propanamide Chemical compound C1(=CCCC1)C[C@@H](C(=O)[C@@]1(OC1)C)NC([C@H]([C@@H](C1=CC=C(C=C1)OC)O)NC([C@H](C)NC(CN1CCOCC1)=O)=O)=O GHYOCDFICYLMRF-UTIIJYGPSA-N 0.000 description 1
- JODPVHLKQIOIIW-UHFFFAOYSA-N (3-methylphenyl)thiourea Chemical compound CC1=CC=CC(NC(N)=S)=C1 JODPVHLKQIOIIW-UHFFFAOYSA-N 0.000 description 1
- QFLWZFQWSBQYPS-AWRAUJHKSA-N (3S)-3-[[(2S)-2-[[(2S)-2-[5-[(3aS,6aR)-2-oxo-1,3,3a,4,6,6a-hexahydrothieno[3,4-d]imidazol-4-yl]pentanoylamino]-3-methylbutanoyl]amino]-3-(4-hydroxyphenyl)propanoyl]amino]-4-[1-bis(4-chlorophenoxy)phosphorylbutylamino]-4-oxobutanoic acid Chemical compound CCCC(NC(=O)[C@H](CC(O)=O)NC(=O)[C@H](Cc1ccc(O)cc1)NC(=O)[C@@H](NC(=O)CCCCC1SC[C@@H]2NC(=O)N[C@H]12)C(C)C)P(=O)(Oc1ccc(Cl)cc1)Oc1ccc(Cl)cc1 QFLWZFQWSBQYPS-AWRAUJHKSA-N 0.000 description 1
- XVEFWRUIYOXUGG-UHFFFAOYSA-N (4-chlorophenyl)thiourea Chemical compound NC(=S)NC1=CC=C(Cl)C=C1 XVEFWRUIYOXUGG-UHFFFAOYSA-N 0.000 description 1
- UVNPEUJXKZFWSJ-LMTQTHQJSA-N (R)-N-[(4S)-8-[6-amino-5-[(3,3-difluoro-2-oxo-1H-pyrrolo[2,3-b]pyridin-4-yl)sulfanyl]pyrazin-2-yl]-2-oxa-8-azaspiro[4.5]decan-4-yl]-2-methylpropane-2-sulfinamide Chemical compound CC(C)(C)[S@@](=O)N[C@@H]1COCC11CCN(CC1)c1cnc(Sc2ccnc3NC(=O)C(F)(F)c23)c(N)n1 UVNPEUJXKZFWSJ-LMTQTHQJSA-N 0.000 description 1
- WDBQJSCPCGTAFG-QHCPKHFHSA-N 4,4-difluoro-N-[(1S)-3-[4-(3-methyl-5-propan-2-yl-1,2,4-triazol-4-yl)piperidin-1-yl]-1-pyridin-3-ylpropyl]cyclohexane-1-carboxamide Chemical compound FC1(CCC(CC1)C(=O)N[C@@H](CCN1CCC(CC1)N1C(=NN=C1C)C(C)C)C=1C=NC=CC=1)F WDBQJSCPCGTAFG-QHCPKHFHSA-N 0.000 description 1
- BWGRDBSNKQABCB-UHFFFAOYSA-N 4,4-difluoro-N-[3-[3-(3-methyl-5-propan-2-yl-1,2,4-triazol-4-yl)-8-azabicyclo[3.2.1]octan-8-yl]-1-thiophen-2-ylpropyl]cyclohexane-1-carboxamide Chemical compound CC(C)C1=NN=C(C)N1C1CC2CCC(C1)N2CCC(NC(=O)C1CCC(F)(F)CC1)C1=CC=CS1 BWGRDBSNKQABCB-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- IAZDPXIOMUYVGZ-WFGJKAKNSA-N Dimethyl sulfoxide Chemical compound [2H]C([2H])([2H])S(=O)C([2H])([2H])[2H] IAZDPXIOMUYVGZ-WFGJKAKNSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- OCDFWMVZBNNUFH-UHFFFAOYSA-L I[Co](C1(C(=C(C(=C1C)C)C)C)C)I Chemical compound I[Co](C1(C(=C(C(=C1C)C)C)C)C)I OCDFWMVZBNNUFH-UHFFFAOYSA-L 0.000 description 1
- KQJQICVXLJTWQD-UHFFFAOYSA-N N-Methylthiourea Chemical compound CNC(N)=S KQJQICVXLJTWQD-UHFFFAOYSA-N 0.000 description 1
- NUGPIZCTELGDOS-QHCPKHFHSA-N N-[(1S)-3-[4-(3-methyl-5-propan-2-yl-1,2,4-triazol-4-yl)piperidin-1-yl]-1-pyridin-3-ylpropyl]cyclopentanecarboxamide Chemical compound C(C)(C)C1=NN=C(N1C1CCN(CC1)CC[C@@H](C=1C=NC=CC=1)NC(=O)C1CCCC1)C NUGPIZCTELGDOS-QHCPKHFHSA-N 0.000 description 1
- LFZAGIJXANFPFN-UHFFFAOYSA-N N-[3-[4-(3-methyl-5-propan-2-yl-1,2,4-triazol-4-yl)piperidin-1-yl]-1-thiophen-2-ylpropyl]acetamide Chemical compound C(C)(C)C1=NN=C(N1C1CCN(CC1)CCC(C=1SC=CC=1)NC(C)=O)C LFZAGIJXANFPFN-UHFFFAOYSA-N 0.000 description 1
- XGEGHDBEHXKFPX-UHFFFAOYSA-N N-methylthiourea Natural products CNC(N)=O XGEGHDBEHXKFPX-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- UVNZNIGDKACWAA-UHFFFAOYSA-N [Ru].C1CC=CCCC=C1 Chemical compound [Ru].C1CC=CCCC=C1 UVNZNIGDKACWAA-UHFFFAOYSA-N 0.000 description 1
- 238000007171 acid catalysis Methods 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 229940125904 compound 1 Drugs 0.000 description 1
- 229940125797 compound 12 Drugs 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- LTYMSROWYAPPGB-UHFFFAOYSA-N diphenyl sulfide Chemical compound C=1C=CC=CC=1SC1=CC=CC=C1 LTYMSROWYAPPGB-UHFFFAOYSA-N 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000007306 functionalization reaction Methods 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 150000002390 heteroarenes Chemical class 0.000 description 1
- 238000004896 high resolution mass spectrometry Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 238000001819 mass spectrum Methods 0.000 description 1
- 229930014626 natural product Natural products 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- CZDYPVPMEAXLPK-UHFFFAOYSA-N tetramethylsilane Chemical compound C[Si](C)(C)C CZDYPVPMEAXLPK-UHFFFAOYSA-N 0.000 description 1
- 239000011691 vitamin B1 Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D277/00—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings
- C07D277/02—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings
- C07D277/20—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D277/32—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D277/38—Nitrogen atoms
- C07D277/40—Unsubstituted amino or imino radicals
-
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Abstract
本发明涉及一种过渡金属催化的卡宾插入/环合反应高效合成氨基噻唑衍生物的绿色合成新方法。该方法以硫叶立德作为卡宾供体,过渡金属催化卡宾发生插入/环合反应,高效形成C‑S键以及构建2‑氨基噻唑衍生物。与传统方法相比,本方法原料易得,步骤简单,以温和的硫叶立德试剂代替了传统合成方法中需要用到的卤代试剂,是一种温和、快速、简便、有效、环境友好的制备2‑氨基噻唑及其衍生物的方法,具有广阔的应用前景。
Description
技术领域
本发明涉及一种以硫叶立德作为卡宾供体,过渡金属催化的卡宾插入/环合反应,高效形成C-S键以及构建2-氨基噻唑及其衍生物的绿色合成新方法,属于有机合成化学技术领域。
背景技术
噻唑及其衍生物是一种重要的杂环结构单元,存在于许多药物,天然产物的结构中,如维生素B1、法奈替唑、阿巴芬净1-4目前合成氨基噻唑及其衍生物的方法有Hantzsch,Cook Heilborn和Tchernic合成反应5。Hantzsch’s合成法是常用的合成氨基噻唑的方法,该方法主要以α-卤代酮或α-卤代醛和硫脲作为底物,在酸性条件下进行缩合关环而制得。然而该传统方法通常需要酸性体系和卤代物的使用,让该方法在后处理过程中会对环境造成较大的污染,因此,许多研究者们在以经典合成法的基础上对2-氨基噻唑环类化合物的合成方法进行了许多改进。主要包括使用非酸性溶剂体系、绿色溶剂体系、无溶剂体系、固载试剂、金属催化,微波法和底物多样化等方法6,使得2-氨基噻唑环类化合物的合成方法得到了极大的丰富和发展。金属催化的卡宾插入X-H键(X=C,N,O,S)反应,一直以来被认为是一种温和高效地构建重要有机结构单元的方法。重氮化合物是一种常使用的金属卡宾前体,因其具有较好的反应活性和适用性而被广泛用于卡宾插入反应中7-11。2008年,Yadav等人12报道了三氟甲磺酸铜催化的α-重氮酮与硫脲反应合成2-氨基噻唑衍生物的方法。但重氮化合物难合成、不稳定、难保存,甚至具有潜在危险性。硫叶立德同样作为一种卡宾前体化合物,与重氮化合物相比,具有安全性,稳定性和易合成等优点,最近成为卡宾化学的研究热点13-17。同样作为卡宾前体的硫叶立德,以其为底物合成2-氨基噻唑衍生物的方法却鲜有报道18。Sheppeck等人虽然报道了使用硫叶立德来制备噻唑衍生物的方法,但是依然需要大量的盐酸催化,并且收率不高,实例太少,且无硫叶立德与取代硫脲的反应实例。因此,通过硫叶立德作为卡宾供体开发一种经济、高效、安全、绿色、底物适用性广的合成C-S键以及构建氨基噻唑的方法具有重大的研究意义。
发明内容
本发明以硫叶立德作为卡宾供体,通过过渡金属催化,简捷高效地与硫脲发生卡宾插入反应,并环合构建噻唑及其衍生物的合成新方法,解决了传统方法的环境污染大,步骤繁琐,条件苛刻等缺点。本发明原料易得,步骤简单,适用性广泛,避免了卤代物的使用,是一种温和、快速、简便、有效、环境友好的制备氨基噻唑母环的方法,具有广阔的应用前景。
本发明的技术路线以硫脲类化合物为底物,以硫叶立德作为卡宾供体,其化学反应式如下所示:
其中:
R1为苯基、噻吩基、呋喃基、吡啶基、萘基、吡咯基、吲哚基等芳环或杂环,C1~C20的未取代或取代烷基,C1~C20的未取代或取代链烃基,C3~C10的未取代或取代环烷基,C1~C20的未取代或取代酰基的一种。
R2为氢、苯基、噻吩基、呋喃基、吡啶基、萘基、吡咯基、吲哚基等芳环或杂环,C1~C20的未取代或取代烷基,C1~C20的未取代或取代链烃基,C3~C10的未取代或取代环烷基,C1~C20的未取代或取代酰基的一种。
其制备步骤如下:
(1)在洁净的反应器中依次加入硫叶立德化合物、硫脲类化合物、催化剂、和1,2-二氯乙烷,放入80℃油浴锅里搅拌24h。
(2)反应结束后,收集反应液,减压除去溶剂,残留物采用硅胶柱层析分离纯化即得产品。
步骤(1)中,催化剂为钯碳、四(三苯基膦)钯、醋酸钯、氯化钯、二(乙腈)二氯化钯、二(苯腈)二氯化钯,1,1’-二(二苯基膦基)二茂铁二氯化钯、二(三苯基膦)二氯化钯、双(二亚苄基丙酮)钯、三(二亚苄基丙酮)二钯、氯化烯丙基钯(II)二聚物、(1,5-环辛二烯)二氯化钯(II)、铑碳、三氯化铑、醋酸铑、乙酰丙酮三苯基膦羰基铑、双环辛烯氯化铑二聚体、二氯(五甲基环戊二烯基)合铑(III)二聚体、(二(六氟锑酸)三乙腈(五甲基环戊二烯基)铑(III))、三苯基膦氯化铑、三氯化钌、三苯基膦氯化钌、二氯二羰基双三苯基膦钌、双(2-甲基烯丙基)(1,5-环辛二烯)钌(II)、对伞花烃二氯化钌二聚体、氯化钴、乙酰乙酰钴、八羰基二钴、二氯(五甲基环戊二烯基)合钴(III)二聚体、五甲基环戊二烯基羰基二碘化钴、(二(六氟锑酸)三乙腈(五甲基环戊二烯基)钴(III))、三氯化铱、二氯(五甲基环戊二烯)合铱(III)二聚体、双(1,5-环辛二烯)氯化铱(Ⅰ)二聚体、甲氧基(环辛二烯)合铱二聚体中的一种或一种以上。
步骤(1)中硫叶立德化合物:硫脲类化合物:催化剂的摩尔比为1:(1.5~2.0):(0.02~0.05)。
相比于传统的反应,本发明是以硫叶立德作为卡宾供体过渡金属催化的卡宾插入/环合反应,高效形成C-S键以及构建2-氨基噻唑及其衍生物的方法,本方法中硫叶立德原料制备安全易得,步骤简单,结构稳定,生成副产物只有水和DMSO,避免了卤代物或者重氮化合物的使用,更加安全和绿色。是一种简便高效的制备2-氨基噻唑衍生物的方法,为将来合成有生物活性的噻唑衍生物提供了实验基础,具有广阔的应用前景。
用核磁共振氢谱(1H NMR)、碳谱(13C NMR)以及高分辨质谱证实了在芳基杂环上形成C-S键以及2-氨基噻唑类衍生物的结构。其中核磁共振图采用Varian INOVA-400 型核磁共振仪测定,以四甲基硅烷(TMS)为内标(δ 0 ppm),氘代二甲基亚砜为溶剂;高分辨质谱用Agilent 1946B 质谱仪测定。
具体实施方法
下面结合具体实施方式对本发明作进一步描述,有助于对本发明的理解。但并不能以此来限制本发明的权利范围,而本发明的权利范围应以权利要求书阐述的为准。
实施实例1:化合物1的合成
(1)在洁净的反应器中依次加入苯基硫叶立德(39.2 mg, 0.2 mmol)、硫脲(30.4 mg,0.4 mmol)、醋酸铑 ( II ) 二聚体(2.6 mg, 0.006 mmol)和1,2-二氯乙烷 (2 mL),放入80℃油浴锅里搅拌24 h。
(2)反应结束后,收集反应液,减压除去溶剂,残留物采用硅胶柱层析分离纯化即得白色固体,收率85 %。1H NMR (400 MHz, DMSO-d 6) δ 7.81 – 7.76 (m, 2H), 7.35 (t,J = 7.6 Hz, 2H), 7.27 – 7.21 (m, 1H), 7.03 (s, 2H), 6.98 (s, 1H); 13C NMR (100MHz, DMSO-d 6) δ 168.7, 150.3, 135.3, 128.9(2C), 128, 126.0(2C), 102.0. HRMS(ESI): m/z计算值C9H8N2SH+:177.0481,实测值:177.0483。
实施实例2:化合物2的合成
(1)在洁净的反应器中依次加入(3-甲氧基)苯基硫叶立德(45.2 mg, 0.2 mmol)、硫脲(30.4 mg, 0.4 mmol)、双(1,5-环辛二烯)氯化铱(Ⅰ)二聚体(4.0 mg, 0.006 mmol)和1,2-二氯乙烷 (2 mL),放入80℃油浴锅里搅拌24 h。
(2)反应结束后,收集反应液,减压除去溶剂,残留物采用硅胶柱层析分离纯化即得白E色固体,收率63%。1H NMR (400 MHz, Chloroform-d) δ 7.28 – 7.25 (m, 2H),7.23 – 7.18 (m, 1H), 6.77 (ddd, J = 8.0, 2.5, 1.3 Hz, 1H), 6.62 (s, 1H), 5.29(s, 2H), 3.77 (s, 3H); 13C NMR (100 MHz, Chloroform-d) δ 166.4, 158.8, 150.0,135.0, 128.6, 117.5, 112.7, 110.4, 102.0, 54.3. HRMS (ESI): m/z计算值C10H10N2OSH+:207.0587,实测值:207.0585。
实施实例3:化合物3的合成
(1)在洁净的反应器中依次加入(4-甲氧基)苯基硫叶立德(45.2 mg, 0.2 mmol)、硫脲(30.4 mg, 0.4 mmol)、双(1,5-环辛二烯)氯化铑(Ⅰ)二聚体(3.0 mg, 0.006 mmol)和1,2-二氯乙烷 (2 mL),放入80℃油浴锅里搅拌24 h。
(2)反应结束后,收集反应液,减压除去溶剂,残留物采用硅胶柱层析分离纯化即得白色固体,收率70%。1H NMR (400 MHz, DMSO-d 6) δ 7.71 (d, J = 8.8 Hz, 2H), 7.01(s, 2H), 6.91 (d, J = 8.8 Hz, 2H), 6.81 (s, 1H), 3.76 (s, 3H); 13C NMR (100MHz, DMSO-d 6) δ 168.6, 159.0, 150.0, 128.2, 127.3, 114.3, 99.8, 55.5. HRMS(ESI): m/z计算值C10H10N2OSH+:207.0587,实测值:207.0589。
实施实例4:化合物4的合成
(1)在洁净的反应器中依次加入(4-氯)苯基硫叶立德(46.0 mg, 0.2 mmol)、硫脲(30.4 mg, 0.4 mmol)、五甲基环戊二烯基羰基二碘化钴(2.8 mg, 0.006 mmol)和1,2-二氯乙烷 (2 mL),放入80℃油浴锅里搅拌24 h。
(2)反应结束后,收集反应液,减压除去溶剂,残留物采用硅胶柱层析分离纯化即得白色固体,收率74%。1H NMR (400 MHz, DMSO-d 6) δ 7.79 (d, J = 8.4 Hz, 2H), 7.41(d, J = 8.4 Hz, 2H), 7.19 (s, 2H), 7.06 (s, 1H); 13C NMR (100 MHz, DMSO-d 6) δ168.9, 148.4, 133.8, 132.1, 129.0, 127.7, 102.8. HRMS (ESI): m/z计算值C9H7ClN2SH+:211.0091,实测值:211.0088。
实施实例5:化合物5的合成
(1)在洁净的反应器中依次加入2-噻吩硫叶立德(40.4 mg, 0.2 mmol)、硫脲(30.4mg, 0.4 mmol)、二氯(五甲基环戊二烯基)合铑(III)二聚体(3.7 mg, 0.006 mmol)和1,2-二氯乙烷 (2 mL),放入80℃油浴锅里搅拌24 h。
(2)反应结束后,收集反应液,减压除去溶剂,残留物采用硅胶柱层析分离纯化即得白色固体,收率74%。1H NMR (400 MHz, Chloroform-d) δ 7.31 (dd, J = 3.6, 1.2Hz, 1H), 7.21 (dd, J = 5.0, 1.2 Hz, 1H), 7.02 (dd, J = 5.1, 3.6 Hz, 1H), 6.60(s, 1H), 5.47 (s, 2H); 13C NMR (100 MHz, Chloroform-d) δ 167.7, 145.5, 138.6,127.6, 124.5, 123.4, 101.4. HRMS (ESI): m/z计算值C7H6N2SH+:183.0045,实测值:183.0043。
实施实例6:化合物6的合成
(1)在洁净的反应器中依次加入硫叶立德(39.2 mg, 0.2 mmol)、3-甲基苯基硫脲(66.4 mg, 0.4 mmol)、醋酸铑 ( II ) 二聚体(2.6 mg, 0.006 mmol)和1,2-二氯乙烷 (2mL),放入80℃油浴锅里搅拌24 h。
(2)反应结束后,收集反应液,减压除去溶剂,残留物采用硅胶柱层析分离纯化即得白色固体,收率67%。1H NMR (400 MHz, Chloroform-d) δ 7.84 (d, J = 7.6 Hz, 2H),7.39 (t, J = 7.5 Hz, 2H), 7.30 (t, J = 7.5 Hz, 1H), 7.26 – 7.23 (m, 2H), 7.15(d, J = 8.1 Hz, 2H), 6.78 (s, 1H), 2.34 (s, 3H);13C NMR (100 MHz, Chloroform-d) δ 165.5, 151.2, 134.5, 133.0, 130.0, 129.9(2C), 128.6(2C), 128.0, 127.8,126.1, 118.9, 101.4, 20.8. HRMS (ESI): m/z计算值C7H6N2SH+:267.0950,实测值:267.0953。
实施实例7:化合物7的合成
(1)在洁净的反应器中依次加入硫叶立德(39.2 mg, 0.2 mmol)、2-氯苯基硫脲(74.4mg, 0.4 mmol)、双(1,5-环辛二烯)氯化铑(Ⅰ)二聚体(3.0 mg, 0.006 mmol)和1,2-二氯乙烷 (2 mL),放入80℃油浴锅里搅拌24 h。
(2)反应结束后,收集反应液,减压除去溶剂,残留物采用硅胶柱层析分离纯化即得蜡状物,收率90%。1H NMR (400 MHz, Chloroform-d) δ 8.29 (d, J = 8.3 Hz, 1H),7.88 (d, J = 7.1 Hz, 2H), 7.42 (t, J = 7.7 Hz, 3H), 7.36 – 7.32 (m, 2H), 6.99(t, J = 7.0 Hz, 1H), 6.91 (s, 1H); 13C NMR (100 MHz, Chloroform-d) δ 162.7,151.5, 136.9, 134.4, 129.4, 128.6(2C), 128.1, 128.0, 127.9(2C), 126.1, 122.7,117.9, 102.8. HRMS (ESI): m/z计算值C15H11ClN2SH+:287.0404,实测值:287.0402。
实施实例8:化合物8的合成
(1)在洁净的反应器中依次加入硫叶立德(39.2 mg, 0.2 mmol)、4-氯苯基硫脲(74.4mg, 0.4 mmol)、醋酸铑 ( II ) 二聚体(2.6 mg, 0.006 mmol)和1,2-二氯乙烷 (2 mL),放入80℃油浴锅里搅拌24 h。
(2)反应结束后,收集反应液,减压除去溶剂,残留物采用硅胶柱层析分离纯化即得蜡状物,收率74%。1H NMR (400 MHz, Chloroform-d) δ 7.85 (d, J = 7.1 Hz, 2H),7.52 (s, 1H), 7.42 (t, J = 7.5 Hz, 2H), 7.36 – 7.26 (m, 4H), 7.04 (dt, J =6.7, 2.0 Hz, 1H), 6.87 (s, 1H); 13C NMR (100 MHz, Chloroform-d) δ 163.4,151.0,141.2, 135.1, 134.0, 130.4, 128.7(2C), 128.2, 126.1(2C), 122.9, 117.9, 115.9,102.2. HRMS (ESI): m/z计算值C15H11ClN2SH+:287.0404,实测值:287.0401。
实施实例9:化合物9的合成
(1)在洁净的反应器中依次加入2-呋喃硫叶立德(37.2 mg, 0.2 mmol)、硫脲(30.4mg, 0.4 mmol)、二氯(五甲基环戊二烯基)合铑(III)二聚体(3.7 mg, 0.006 mmol)和1,2-二氯乙烷 (2 mL),放入80℃油浴锅里搅拌24 h。
(2)反应结束后,收集反应液,减压除去溶剂,残留物采用硅胶柱层析分离纯化即得白色固体,收率53%。1H NMR (400 MHz, Chloroform-d) δ 7.39 (d, J = 1.7 Hz, 1H),6.68 (s, 1H), 6.61 (d, J = 3.3 Hz, 1H), 6.43 (t, J = 2.5 Hz, 1H), 5.27 (s,2H); 13C NMR (100 MHz, Chloroform-d) δ167.8, 150.1, 142.5, 141.8, 111.3,106.3, 102.1. HRMS (ESI): m/z计算值C7H6N2OSH+ : 167.0274, 实测值: 167.0275。
实施实例10:化合物10的合成
(1)在洁净的反应器中依次加入1-苯基丙基硫叶立德(47.6 mg, 0.2 mmol)、硫脲(30.4 mg, 0.4 mmol)、五甲基环戊二烯基羰基二碘化钴(2.8 mg, 0.006 mmol)和1,2-二氯乙烷 (2 mL),放入80℃油浴锅里搅拌24 h。
(2)反应结束后,收集反应液,减压除去溶剂,残留物采用硅胶柱层析分离纯化即得蜡状物,收率40%。1H NMR (400 MHz, Chloroform-d) δ 7.33 – 7.23 (m, 4H), 7.22 –7.15 (m, 1H), 6.10 (d, J = 0.9 Hz, 1H), 3.74 – 3.63 (m, 1H), 2.17 – 1.82 (m,2H), 0.87 (t, J = 7.3 Hz, 3H); 13C NMR (100 MHz, Chloroform-d) δ 167.5, 155.5,143.2, 128.3(2C), 128.1(2C), 126.3, 102.6,50.0, 28.0, 12.5. HRMS (ESI): m/z计算值C12H14N2SH+ : 219.0950, 实测值: 219.0951。
实施实例11:化合物11的合成
(1)在洁净的反应器中依次加入1-苯基乙烯基硫叶立德(44.4 mg, 0.2 mmol)、硫脲(30.4 mg, 0.4 mmol)、醋酸铑 ( II ) 二聚体(2.6 mg, 0.006 mmol)和1,2-二氯乙烷 (2mL),放入80℃油浴锅里搅拌24 h。
(2)反应结束后,收集反应液,减压除去溶剂,残留物采用硅胶柱层析分离纯化即得蜡状物,收率37%。1H NMR (400 MHz, Chloroform-d) δ 7.48 (d, J = 7.1 Hz, 2H),7.33 (t, J = 7.5 Hz, 2H), 7.27 – 7.22 (m, 2H), 6.87 (d, J = 15.9 Hz, 1H),6.44 (s, 1H), 5.17 (s, 2H); 13C NMR (100 MHz, Chloroform-d) δ 167.2, 150.2,137.1, 130.4, 128.6(2C), 127.6, 126.5(2C), 121.4, 106.6.HRMS (ESI): m/z计算值C11H10N2S H+ : 203.0637, 实测值: 203.0638。
实施实例12:化合物12的合成
(1)在洁净的反应器中依次加入苯基硫叶立德(39.2 mg, 0.2 mmol)、N-甲基硫脲(36.1 mg, 0.4 mmol)、醋酸铑 ( II ) 二聚体(2.6 mg, 0.006 mmol)和1,2-二氯乙烷 (2mL),放入80℃油浴锅里搅拌24 h。
(2)反应结束后,收集反应液,减压除去溶剂,残留物采用硅胶柱层析分离纯化即得蜡状物,收率71%。1H NMR (400 MHz, Chloroform-d) δ 7.83 – 7.74 (m, 2H), 7.37(t, J = 7.6 Hz, 2H), 7.29 (d, J = 7.3 Hz, 1H), 6.69 (s, 1H), 6.09 (s, 1H),2.96 (s, 3H). 13C NMR (100 MHz, Chloroform-d) δ 171.1, 151.5, 134.9, 128.6,127.7, 126.1, 100.7, 32.3. HRMS (ESI): m/z calculated for C10H10N2SH+:191.0637, found: 191.0635。
参考文献
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Claims (4)
2.权利要求1所述的制备噻唑衍生物的方法,其特征在于采用如下制备步骤:
在洁净的反应器中依次加入硫叶立德化合物、硫脲类化合物、催化剂和1,2-二氯乙烷,放入80℃油浴锅里搅拌24h;
反应结束后,收集反应液,减压除去溶剂,残留物采用硅胶柱层析分离纯化即得产品。
3.根据权利要求2所述的制备方法,其特征在于步骤(1)中的催化剂为钯碳、四(三苯基膦)钯、醋酸钯、氯化钯、二(乙腈)二氯化钯、二(苯腈)二氯化钯,1,1’-二(二苯基膦基)二茂铁二氯化钯、二(三苯基膦)二氯化钯、双(二亚苄基丙酮)钯、三(二亚苄基丙酮)二钯、氯化烯丙基钯(II)二聚物、(1,5-环辛二烯)二氯化钯(II)、铑碳、三氯化铑、醋酸铑、乙酰丙酮三苯基膦羰基铑、双环辛烯氯化铑二聚体、二氯(五甲基环戊二烯基)合铑(III)二聚体、(二(六氟锑酸)三乙腈(五甲基环戊二烯基)铑(III))、三苯基膦氯化铑、三氯化钌、三苯基膦氯化钌、二氯二羰基双三苯基膦钌、双(2-甲基烯丙基)(1,5-环辛二烯)钌(II)、对伞花烃二氯化钌二聚体、氯化钴、乙酰乙酰钴、八羰基二钴、二氯(五甲基环戊二烯基)合钴(III)二聚体、五甲基环戊二烯基羰基二碘化钴、(二(六氟锑酸)三乙腈(五甲基环戊二烯基)钴(III))、三氯化铱、二氯(五甲基环戊二烯)合铱(III)二聚体、双(1,5-环辛二烯)氯化铱(Ⅰ)二聚体、甲氧基(环辛二烯)合铱二聚体中的一种或一种以上。
4.根据权利要求2所述的制备方法,步骤(1)中硫叶立德化合物:硫脲类化合物:催化剂的摩尔比为1:(1.5~2.0):(0.02~0.05)。
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CN116444406A (zh) * | 2023-05-12 | 2023-07-18 | 四川大学 | 一种氧硫叶立德经由重排反应构建叔碳或季碳化合物的方法 |
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