CN115521282B - 一种香豆素化合物E-Suberenol的合成工艺 - Google Patents
一种香豆素化合物E-Suberenol的合成工艺 Download PDFInfo
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- CN115521282B CN115521282B CN202211014265.8A CN202211014265A CN115521282B CN 115521282 B CN115521282 B CN 115521282B CN 202211014265 A CN202211014265 A CN 202211014265A CN 115521282 B CN115521282 B CN 115521282B
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- suberenol
- compound
- bromo
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- 230000015572 biosynthetic process Effects 0.000 title claims abstract description 48
- 238000003786 synthesis reaction Methods 0.000 title claims abstract description 48
- -1 coumarin compound Chemical class 0.000 title claims abstract description 23
- LNFVZUMSDAIQDQ-UHFFFAOYSA-N E-Suberenol Natural products O1C(=O)C=CC2=C1C=C(OC)C(C=CC(C)(C)O)=C2 LNFVZUMSDAIQDQ-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000008569 process Effects 0.000 title claims abstract description 15
- ZYGHJZDHTFUPRJ-UHFFFAOYSA-N benzo-alpha-pyrone Natural products C1=CC=C2OC(=O)C=CC2=C1 ZYGHJZDHTFUPRJ-UHFFFAOYSA-N 0.000 title claims abstract description 11
- 229960000956 coumarin Drugs 0.000 title claims abstract description 10
- 235000001671 coumarin Nutrition 0.000 title claims abstract description 10
- 238000006243 chemical reaction Methods 0.000 claims abstract description 41
- OHSSWZLKWHLYFP-UHFFFAOYSA-N 5-bromo-2-hydroxy-4-methoxybenzaldehyde Chemical compound COC1=CC(O)=C(C=O)C=C1Br OHSSWZLKWHLYFP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 7
- 230000002194 synthesizing effect Effects 0.000 claims abstract description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 51
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 38
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 30
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 26
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 238000005406 washing Methods 0.000 claims description 17
- 150000001875 compounds Chemical class 0.000 claims description 16
- 238000001035 drying Methods 0.000 claims description 15
- 239000012074 organic phase Substances 0.000 claims description 15
- 229910052757 nitrogen Inorganic materials 0.000 claims description 14
- WZUODJNEIXSNEU-UHFFFAOYSA-N 2-Hydroxy-4-methoxybenzaldehyde Chemical compound COC1=CC=C(C=O)C(O)=C1 WZUODJNEIXSNEU-UHFFFAOYSA-N 0.000 claims description 12
- HNVRRHSXBLFLIG-UHFFFAOYSA-N 3-hydroxy-3-methylbut-1-ene Chemical compound CC(C)(O)C=C HNVRRHSXBLFLIG-UHFFFAOYSA-N 0.000 claims description 11
- 239000004698 Polyethylene Substances 0.000 claims description 11
- 239000007787 solid Substances 0.000 claims description 11
- 238000001914 filtration Methods 0.000 claims description 10
- BWHDROKFUHTORW-UHFFFAOYSA-N tritert-butylphosphane Chemical compound CC(C)(C)P(C(C)(C)C)C(C)(C)C BWHDROKFUHTORW-UHFFFAOYSA-N 0.000 claims description 10
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 claims description 9
- 239000003480 eluent Substances 0.000 claims description 9
- 239000000243 solution Substances 0.000 claims description 9
- 238000005303 weighing Methods 0.000 claims description 8
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 6
- 239000012043 crude product Substances 0.000 claims description 6
- 238000007865 diluting Methods 0.000 claims description 6
- 238000011068 loading method Methods 0.000 claims description 6
- 239000011734 sodium Substances 0.000 claims description 6
- LNFVZUMSDAIQDQ-VOTSOKGWSA-N (E)-Suberenol Chemical compound O1C(=O)C=CC2=C1C=C(OC)C(\C=C\C(C)(C)O)=C2 LNFVZUMSDAIQDQ-VOTSOKGWSA-N 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- ZOAIGCHJWKDIPJ-UHFFFAOYSA-M caesium acetate Chemical compound [Cs+].CC([O-])=O ZOAIGCHJWKDIPJ-UHFFFAOYSA-M 0.000 claims description 5
- 238000004440 column chromatography Methods 0.000 claims description 5
- 239000000706 filtrate Substances 0.000 claims description 5
- 239000012044 organic layer Substances 0.000 claims description 5
- 239000000741 silica gel Substances 0.000 claims description 5
- 229910002027 silica gel Inorganic materials 0.000 claims description 5
- 239000002904 solvent Substances 0.000 claims description 5
- 238000009423 ventilation Methods 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 4
- 150000003839 salts Chemical class 0.000 claims description 4
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims description 3
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052794 bromium Inorganic materials 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000011049 filling Methods 0.000 claims description 3
- 239000012071 phase Substances 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 238000010791 quenching Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims 2
- 238000007664 blowing Methods 0.000 claims 1
- 239000012295 chemical reaction liquid Substances 0.000 claims 1
- 229920000573 polyethylene Polymers 0.000 claims 1
- 238000005086 pumping Methods 0.000 claims 1
- 230000000171 quenching effect Effects 0.000 claims 1
- 229920006395 saturated elastomer Polymers 0.000 claims 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical class O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims 1
- JRMUNVKIHCOMHV-UHFFFAOYSA-M tetrabutylammonium bromide Chemical compound [Br-].CCCC[N+](CCCC)(CCCC)CCCC JRMUNVKIHCOMHV-UHFFFAOYSA-M 0.000 abstract description 7
- 238000007341 Heck reaction Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 150000004694 iodide salts Chemical class 0.000 abstract description 4
- 150000004775 coumarins Chemical class 0.000 abstract description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract description 3
- 231100000331 toxic Toxicity 0.000 abstract description 3
- 230000002588 toxic effect Effects 0.000 abstract description 3
- 230000009471 action Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000001308 synthesis method Methods 0.000 abstract description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 16
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 12
- LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical compound [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 description 12
- PIBWKRNGBLPSSY-UHFFFAOYSA-L palladium(II) chloride Chemical group Cl[Pd]Cl PIBWKRNGBLPSSY-UHFFFAOYSA-L 0.000 description 10
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 8
- MXQOYLRVSVOCQT-UHFFFAOYSA-N palladium;tritert-butylphosphane Chemical compound [Pd].CC(C)(C)P(C(C)(C)C)C(C)(C)C.CC(C)(C)P(C(C)(C)C)C(C)(C)C MXQOYLRVSVOCQT-UHFFFAOYSA-N 0.000 description 8
- SCVFZCLFOSHCOH-UHFFFAOYSA-M potassium acetate Chemical compound [K+].CC([O-])=O SCVFZCLFOSHCOH-UHFFFAOYSA-M 0.000 description 8
- 229910000027 potassium carbonate Inorganic materials 0.000 description 8
- 235000011181 potassium carbonates Nutrition 0.000 description 8
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 6
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 6
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 6
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical class [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 6
- 239000001506 calcium phosphate Substances 0.000 description 6
- 235000011010 calcium phosphates Nutrition 0.000 description 6
- KTWOOEGAPBSYNW-UHFFFAOYSA-N ferrocene Chemical compound [Fe+2].C=1C=C[CH-]C=1.C=1C=C[CH-]C=1 KTWOOEGAPBSYNW-UHFFFAOYSA-N 0.000 description 6
- 229910000402 monopotassium phosphate Inorganic materials 0.000 description 6
- 235000019796 monopotassium phosphate Nutrition 0.000 description 6
- KDLHZDBZIXYQEI-UHFFFAOYSA-N palladium Substances [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 6
- 239000011736 potassium bicarbonate Substances 0.000 description 6
- 229910000028 potassium bicarbonate Inorganic materials 0.000 description 6
- 235000015497 potassium bicarbonate Nutrition 0.000 description 6
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 description 6
- 229910000160 potassium phosphate Inorganic materials 0.000 description 6
- 235000011009 potassium phosphates Nutrition 0.000 description 6
- 229910000029 sodium carbonate Inorganic materials 0.000 description 6
- 235000017550 sodium carbonate Nutrition 0.000 description 6
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 description 6
- 239000001488 sodium phosphate Substances 0.000 description 6
- 229910000162 sodium phosphate Inorganic materials 0.000 description 6
- 235000011008 sodium phosphates Nutrition 0.000 description 6
- USFPINLPPFWTJW-UHFFFAOYSA-N tetraphenylphosphonium Chemical group C1=CC=CC=C1[P+](C=1C=CC=CC=1)(C=1C=CC=CC=1)C1=CC=CC=C1 USFPINLPPFWTJW-UHFFFAOYSA-N 0.000 description 6
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 6
- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 description 6
- RIOQSEWOXXDEQQ-UHFFFAOYSA-N triphenylphosphine Chemical compound C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 RIOQSEWOXXDEQQ-UHFFFAOYSA-N 0.000 description 6
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 6
- 238000001228 spectrum Methods 0.000 description 5
- 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 4
- VHYFNPMBLIVWCW-UHFFFAOYSA-N 4-Dimethylaminopyridine Chemical compound CN(C)C1=CC=NC=C1 VHYFNPMBLIVWCW-UHFFFAOYSA-N 0.000 description 4
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 4
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 4
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 4
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 4
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 4
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 4
- RYXZOQOZERSHHQ-UHFFFAOYSA-N [2-(2-diphenylphosphanylphenoxy)phenyl]-diphenylphosphane Chemical compound C=1C=CC=C(P(C=2C=CC=CC=2)C=2C=CC=CC=2)C=1OC1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 RYXZOQOZERSHHQ-UHFFFAOYSA-N 0.000 description 4
- 239000003513 alkali Substances 0.000 description 4
- 239000001099 ammonium carbonate Substances 0.000 description 4
- FJDQFPXHSGXQBY-UHFFFAOYSA-L caesium carbonate Chemical compound [Cs+].[Cs+].[O-]C([O-])=O FJDQFPXHSGXQBY-UHFFFAOYSA-L 0.000 description 4
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- 229910000019 calcium carbonate Inorganic materials 0.000 description 4
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- 239000003054 catalyst Substances 0.000 description 4
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 4
- ZPWVASYFFYYZEW-UHFFFAOYSA-L dipotassium hydrogen phosphate Chemical compound [K+].[K+].OP([O-])([O-])=O ZPWVASYFFYYZEW-UHFFFAOYSA-L 0.000 description 4
- 229910000396 dipotassium phosphate Inorganic materials 0.000 description 4
- 235000019797 dipotassium phosphate Nutrition 0.000 description 4
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 description 4
- CRHWEIDCXNDTMO-UHFFFAOYSA-N ditert-butylphosphane Chemical compound CC(C)(C)PC(C)(C)C CRHWEIDCXNDTMO-UHFFFAOYSA-N 0.000 description 4
- 229910000403 monosodium phosphate Inorganic materials 0.000 description 4
- 235000019799 monosodium phosphate Nutrition 0.000 description 4
- PJNZPQUBCPKICU-UHFFFAOYSA-N phosphoric acid;potassium Chemical compound [K].OP(O)(O)=O PJNZPQUBCPKICU-UHFFFAOYSA-N 0.000 description 4
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- 238000000746 purification Methods 0.000 description 4
- 229910001467 sodium calcium phosphate Inorganic materials 0.000 description 4
- NHGXDBSUJJNIRV-UHFFFAOYSA-M tetrabutylammonium chloride Chemical compound [Cl-].CCCC[N+](CCCC)(CCCC)CCCC NHGXDBSUJJNIRV-UHFFFAOYSA-M 0.000 description 4
- VDZOOKBUILJEDG-UHFFFAOYSA-M tetrabutylammonium hydroxide Chemical compound [OH-].CCCC[N+](CCCC)(CCCC)CCCC VDZOOKBUILJEDG-UHFFFAOYSA-M 0.000 description 4
- YWWDBCBWQNCYNR-UHFFFAOYSA-N trimethylphosphine Chemical group CP(C)C YWWDBCBWQNCYNR-UHFFFAOYSA-N 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
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- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000012512 characterization method Methods 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 3
- 239000007858 starting material Substances 0.000 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 description 2
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical compound ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 description 2
- QFMZQPDHXULLKC-UHFFFAOYSA-N 1,2-bis(diphenylphosphino)ethane Chemical compound C=1C=CC=CC=1P(C=1C=CC=CC=1)CCP(C=1C=CC=CC=1)C1=CC=CC=C1 QFMZQPDHXULLKC-UHFFFAOYSA-N 0.000 description 2
- LZDKZFUFMNSQCJ-UHFFFAOYSA-N 1,2-diethoxyethane Chemical compound CCOCCOCC LZDKZFUFMNSQCJ-UHFFFAOYSA-N 0.000 description 2
- LVEYOSJUKRVCCF-UHFFFAOYSA-N 1,3-bis(diphenylphosphino)propane Chemical compound C=1C=CC=CC=1P(C=1C=CC=CC=1)CCCP(C=1C=CC=CC=1)C1=CC=CC=C1 LVEYOSJUKRVCCF-UHFFFAOYSA-N 0.000 description 2
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 2
- IVORCBKUUYGUOL-UHFFFAOYSA-N 1-ethynyl-2,4-dimethoxybenzene Chemical compound COC1=CC=C(C#C)C(OC)=C1 IVORCBKUUYGUOL-UHFFFAOYSA-N 0.000 description 2
- YZZAYCXETGMEPP-UHFFFAOYSA-N 1-naphthalen-1-yl-2h-naphthalen-1-ol Chemical compound C1=CC=C2C(C3(C4=CC=CC=C4C=CC3)O)=CC=CC2=C1 YZZAYCXETGMEPP-UHFFFAOYSA-N 0.000 description 2
- BZAZNULYLRVMSW-UHFFFAOYSA-N 2-Methyl-2-buten-3-ol Natural products CC(C)=C(C)O BZAZNULYLRVMSW-UHFFFAOYSA-N 0.000 description 2
- BCJVBDBJSMFBRW-UHFFFAOYSA-N 4-diphenylphosphanylbutyl(diphenyl)phosphane Chemical compound C=1C=CC=CC=1P(C=1C=CC=CC=1)CCCCP(C=1C=CC=CC=1)C1=CC=CC=C1 BCJVBDBJSMFBRW-UHFFFAOYSA-N 0.000 description 2
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 2
- 229910021503 Cobalt(II) hydroxide Inorganic materials 0.000 description 2
- JJLJMEJHUUYSSY-UHFFFAOYSA-L Copper hydroxide Chemical compound [OH-].[OH-].[Cu+2] JJLJMEJHUUYSSY-UHFFFAOYSA-L 0.000 description 2
- 239000005750 Copper hydroxide Substances 0.000 description 2
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 2
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- JGFZNNIVVJXRND-UHFFFAOYSA-N N,N-diisopropylethylamine Substances CCN(C(C)C)C(C)C JGFZNNIVVJXRND-UHFFFAOYSA-N 0.000 description 2
- GSCCALZHGUWNJW-UHFFFAOYSA-N N-Cyclohexyl-N-methylcyclohexanamine Chemical compound C1CCCCC1N(C)C1CCCCC1 GSCCALZHGUWNJW-UHFFFAOYSA-N 0.000 description 2
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 2
- XTUVJUMINZSXGF-UHFFFAOYSA-N N-methylcyclohexylamine Chemical compound CNC1CCCCC1 XTUVJUMINZSXGF-UHFFFAOYSA-N 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- 239000002202 Polyethylene glycol Substances 0.000 description 2
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 2
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 2
- 235000012538 ammonium bicarbonate Nutrition 0.000 description 2
- 235000012501 ammonium carbonate Nutrition 0.000 description 2
- 239000000908 ammonium hydroxide Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- RQPZNWPYLFFXCP-UHFFFAOYSA-L barium dihydroxide Chemical compound [OH-].[OH-].[Ba+2] RQPZNWPYLFFXCP-UHFFFAOYSA-L 0.000 description 2
- 229910001863 barium hydroxide Inorganic materials 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 125000006268 biphenyl-3-yl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C1=C([H])C(*)=C([H])C([H])=C1[H] 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
- 229910000389 calcium phosphate Inorganic materials 0.000 description 2
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- C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D311/04—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring
- C07D311/06—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 2
- C07D311/08—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 2 not hydrogenated in the hetero ring
- C07D311/18—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 2 not hydrogenated in the hetero ring substituted otherwise than in position 3 or 7
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Abstract
本发明公开了香豆素化合物E‑Suberenol技术领域的一种香豆素化合物E‑Suberenol的合成工艺;步骤一:5‑溴‑2‑羟基‑4‑甲氧基苯甲醛(17)的合成;步骤二:6‑溴‑7‑甲氧基‑2H‑铬‑2‑酮(3)的合成;步骤三:E‑suberenol(12)的合成;避免毒性试剂(TBAB等)、强腐蚀性浓硫酸以及难以制备的高活性碘化物的使用;使用富电子,大位阻的去活性溴代香豆素类化合物作为中间体,在三烷基膦作用下通过Heck反应高产率合成E‑Suberenol;解决了现有技术纯度不高,产率偏低,不能大量生产的问题;提高反应的原子经济性;提供一种工艺稳定,操作简便,合成效率高的合成方法。
Description
技术领域
本发明涉及香豆素化合物E-Suberenol技术领域,具体为一种香豆素化合物E-Suberenol的合成工艺。
背景技术
1990年日本名城大学Furukawa小组报道了(E)-Suberenol的全合成研究(J.Chem.Soc.Perkin Trans 1,1990,1593-1599.;https://doi.org/10.1039/P19900001593),他们通过Cairns的合成路线(J.Am.Chem.Soc.,1986,(16):1264-1266.;https://doi.org/10.1039/C39860001264)得到天然化合物(11),以7-甲氧基香豆素(8)作为起始原料,首先经过裂解得到香豆酸酯(9),然后用相应的异戊烯基溴进行烯丙基化得到化合物(10),最后在N,N-二乙基苯胺中回流两个小时经Claisen重排得到化合物(11);得到化合物(11)后,Furukawa等人先将化合物(11)置于吡啶中用高压汞灯处理30min后,将体系过滤旋干,再加入甲醇溶解,最后加入三苯基膦在室温下搅拌41h得到(E)-Suberenol(12);该路线冗长,起始原料不通用,反应慢,且反应产率偏低,导致整个合成路线存在着反应条件苛刻,操作复杂等缺点,现有路线存在一定的局限性,例如要求苛刻的反应条件强酸等、毒性试剂(TBAB等)、以及高活性碘代物的使用;并且现有路线步骤繁琐,起始原料不通用,反应时间长,原子经济性不好,制备成本高,总产率低;并且Heck偶联过程中用到过量的TBAB,不仅后处理困难,而且对于环境也有一定的污染。
基于此,本发明设计了一种香豆素化合物E-Suberenol的合成工艺,以解决上述问题。
发明内容
本发明的目的在于提供一种香豆素化合物E-Suberenol的合成工艺,以解决上述背景技术中提出的问题。实现上述目的,本发明提供如下技术方案:一种香豆素化合物E-Suberenol的合成工艺,该香豆素化合物E-Suberenol的合成工艺包括以下步骤:
步骤一:5-溴-2-羟基-4-甲氧基苯甲醛(17)的合成:
氮气环境下,称取2-羟基-4-甲氧基苯甲醛(16)(5g,33.0mmol)置于干燥的圆底烧瓶中,加入100mL二氯甲烷(DCM)后置于-20℃环境体系中,然后用恒压滴液漏斗缓慢滴加溴(1.7mL,33.0mmol)的DCM溶液(40mL),滴加完毕后保持-20℃反应10小时,后恢复至室温;待反应结束后加入10mL水淬灭反应,然后用DCM萃取3次,合并DCM相,水洗有机相1次,盐洗1次,无水硫酸钠干燥;过滤,旋干溶剂干法上样(洗脱剂,PE:EA=100:1至35:1),得到白色粉末状固体(7.01g,92%)。
步骤二:6-溴-7-甲氧基-2H-铬-2-酮(3)的合成:
氮气环境下,称取5-溴-2-羟基-4-甲氧基苯甲醛(17)(3g,13mmol)置于封管内,然后迅速称取乙酸铯(2.5g,13mmol)加入到封管中,最后加入10mL的乙酸酐;TLC监测反应,反应约10h后,移出加热,待冷却以后,用乙酸乙酯(EA)稀释转移至分液漏斗中,用热水洗涤反应液2次,,饱和食盐水洗1次,合并有机相,用无水硫酸钠干燥;过滤,旋干,干法上样(洗脱剂,PE:EA=5:1至2:1),得到淡黄色粉末固体(2.42g,73%)。
步骤三:E-suberenol(12)的合成:
在氮气保护下,封管中装入磁子后,吹入氮气,然后称取6-溴-7-甲氧基-2H-铬-2-酮(3)(50mg,0.2mmol)以及Pd2(dba)3(7.1mg,0.008mmol)快速的装入封管中,之后将密封的封管进行抽气换气3次(油泵抽真空,再充入氮气),每次油泵大约抽5min,抽气换气完毕后,依次加入1.5mL的甲苯,三叔丁基膦的10%甲苯溶液(96μL,0.04mmol),三乙胺(41μL,0.3mmol)以及2-甲基-3-丁烯-2-醇(13)(92μL,0.9mmol);所有的试剂加完以后,然后将封管移入110℃下进行反应约10min;TLC点板监测反应完毕后加入2mL NaHCO3水溶液淬灭反应,搅拌5min后,用EA转移通过硅胶短柱除去不溶性固体,并用EA(50mL)洗涤;滤液用EA稀释并用水洗3遍,饱和食盐水洗1遍;合并的有机层用无水Na2SO4干燥,过滤有机相,浓缩得到粗产物;湿法上样柱层析(洗脱剂,PE:EA=8:1至2:1)纯化后,得到化合物E-suberenol:(51mg,产率98%产率)。
作为本发明的进一步方案,步骤三E-suberenol(12)的合成还包括E-suberenol(12)的常压合成:
在氮气保护下,向双颈圆底烧瓶中加入6-溴-7-甲氧基-2H-铬-2-酮(3)(1.02g,4.0mmol)、双(三叔丁基膦)钯(0)(204.4mg,0.4mmol)、甲苯(15mL)、三乙胺(834μL,6.0mmol)、1,1-二甲基烯丙醇13(1.88mL,18.0mmol);然后将反应瓶密封并置于90℃油浴中;反应完成后(通过TLC监测,约12分钟),将反应混合物冷却至室温,加入NaHCO3水溶液,然后搅拌5分钟;用EA转移通过硅胶短柱除去不溶性固体,并用EA(100mL)洗涤;滤液用EA稀释并用水洗3遍,饱和食盐水洗1遍;合并的有机层用无水Na2SO4干燥,过滤有机相,浓缩得到粗产物;湿法上样柱层析(洗脱剂,PE:EA=8:1至2:1)纯化后,得到化合物E-suberenol:(1.02g,98%yield)。
作为本发明的进一步方案,6-溴-7-甲氧基-2H-铬-2-酮(17)的合成过程中,碳酸钾可以被替换为乙酸钾、乙酸钠、碳酸铯、磷酸钾、乙酸铯、碳酸钠、碳酸钠(一水、七水、十水)、碳酸氢钠、碳酸钾、碳酸氢钾、碳酸钾、碳酸氢钾、磷酸一氢钠、磷酸二氢钠、磷酸一氢钾、磷酸二氢钾、磷酸钠、磷酸钙、氢氧化钾、氢氧化钡、氢氧化钙、氢氧化铝、氢氧化锂、氢氧化镁、氢氧化锌、氢氧化铜、氢氧化铁、氢氧化铅、氢氧化钴、氢氧化铬、氢氧化锆、氢氧化镍、氢氧化铵中的一种或者不添加碱。
作为本发明的进一步方案,所述6-溴-7-甲氧基-2H-铬-2-酮(17)的合成过程中,碱的当量为0.5eq.-1.5eq.之间。
作为本发明的进一步方案,所述6-溴-7-甲氧基-2H-铬-2-酮(17)的合成过程中,温度在130℃-180℃之间。
作为本发明的进一步方案,所述E-suberenol(12)的合成中,中和步骤碳酸氢钠饱和溶液可以替换为碳酸氢钾、碳酸钠、碳酸钾、碳酸钙、磷酸一氢钠、磷酸二氢钠、磷酸一氢钾、磷酸二氢钾、磷酸钾、磷酸钠、磷酸钙。
作为本发明的进一步方案,所述E-suberenol(12)的合成中,所用三(二亚苄基丙酮)二钯催化剂可替换为氯化钯、四三苯基膦钯、三(二亚苄基丙酮)二钯-氯仿加合物、醋酸钯、钯碳、四三苯基膦氯化钯、三氟醋酸钯、二(三叔丁基膦)钯、[1,1'-双(二叔丁基膦)二茂铁]二氯化钯(II)或者不添加催化剂。
作为本发明的进一步方案,所述E-suberenol(12)的合成中,所用三叔丁基膦可替换为三苯基膦、三甲基膦、三(邻甲基苯基)磷、三环己基膦、三环己基膦氟硼酸盐、三正丁基磷、4,5-双二苯基膦-9,9-二甲基氧杂蒽、双(2-二苯基磷苯基)醚、三(2-呋喃基)膦、四氟硼酸三叔丁基膦、1,2-双(二苯基膦)乙烷、1,3-双(二苯基膦)丙烷、1,4-双(二苯基膦)丁烷、2-(二叔丁基膦)联苯、2-(二环己基膦基)联苯、2-双环己基膦-2',6'-二甲氧基联苯、2-二环己膦基-2'-(N,N-二甲胺)-联苯、2-二环己基膦-2',4',6'-三异丙基联苯、正丁基二(1-金刚烷基)膦、1,1'-双(二异丙基膦)二茂铁、R-(+)-1,1'-联萘-2.2'-双二苯膦、1.1'-联-2-萘酚、5,5'-双(二苯基磷酰)-4,4'-二-1,3-联苯、双二苯基磷酰联萘、双(2-二苯基磷苯基)醚、1,1-二(二-叔丁基膦基)-二茂铁、2-二叔丁基膦-2',4',6'-三异丙基联苯、四三苯基膦氯化钯、二(三叔丁基膦)钯、[1,1'-双(二叔丁基膦)二茂铁]二氯化钯(II)或者不添加配体。
作为本发明的进一步方案,所述E-suberenol(12)的合成中三乙胺可替换为三正丙胺、N,N-二异丙基乙胺、N,N-二乙基苯胺、三正辛胺、N,N-环己基甲胺、吡啶、4-二甲氨基吡啶、1,8-二氮杂双环[5.4.0]十一碳-7-烯、1,4-二氮杂二环[2.2.2]辛烷、四丁基氯化铵、四丁基溴化铵、三乙烯二胺、N-甲基二环己基胺、四丁基氢氧化铵、醋酸钾、醋酸钠、碳酸氢钠、碳酸氢钾、碳酸氢铵、碳酸钠、碳酸钾、碳酸铵、碳酸钙、碳酸铯、磷酸一氢钠、磷酸二氢钠、磷酸一氢钾、磷酸二氢钾、磷酸钾、磷酸钠、磷酸钙或者不添加碱。
作为本发明的进一步方案,所述E-suberenol(12)的合成中甲苯可替换四氢呋喃、N,N-二甲基甲酰胺、N,N-二甲基乙酰胺、N-甲基吡咯烷酮、苯、二甲苯、1,4-二氧六环、乙二醇二甲醚、乙二醇二乙醚、1,2-二氯乙烷,聚乙二醇、乙腈、氯代苯,二甲基亚砜或者不添加溶剂。
作为本发明的进一步方案,所述E-suberenol(12)的合成的实验温度在20℃-145℃之间;所述E-suberenol(12)的常压合成中,反应温度在40℃-145℃之间。
与现有技术相比,本发明的有益效果是:
1.避免毒性试剂(TBAB等)、强腐蚀性浓硫酸以及难以制备的高活性碘化物的使用;使用富电子,大位阻的去活性溴代香豆素类化合物作为中间体,在三烷基膦作用下通过Heck反应高产率合成(E)-Suberenol;解决了现有技术纯度不高,产率偏低,不能大量生产的问题;提高反应的原子经济性;提供一种工艺稳定,操作简便,合成效率高的合成方法。
2.本专利合成路线以廉价易得的2-羟基-4-甲氧基苯甲醛(16)为起始原料,在路易斯酸参与下发生选择性溴代反应得到溴代化合物(17);溴代化合物(17)经过Perkin反应环化以73%的产率得到香豆素类化合物(3),之后香豆素类化合物(3)通过钯催化的Heck反应,以98%的产率得到E-suberenol(12);对于E-suberenol(12)的合成,我们整个合成步骤历经3步反应,总收率为65.9%;本专利路线不仅避免了高毒性试剂(TBAB等)、强腐蚀性浓硫酸以及高活性碘代物的使用,并且溴代香豆素类化合物为富电子,大位阻的去活性反应中间体,使用三烷基膦进行Heck反应时,反应无任何副产物,几乎定量制备E-suberenol,在某种意义上实现了原子经济性;总体来说,该专利合成路线简捷,原料简单易得,操作简便,制备成本较低,产率高,以65.9%的总收益得到E-suberenol(12),更重要的是使用本发明的合成方法,可以实现E-suberenol的稳定放大,可以实现工业化生产。
附图说明
图1为本发明5-溴-2-羟基-4-甲氧基苯甲醛(17)氢谱图;
图2为本发明5-溴-2-羟基-4-甲氧基苯甲醛(17)碳谱图;
图3为本发明6-溴-7-甲氧基-2H-铬-2-酮(3)氢谱图;
图4为本发明6-溴-7-甲氧基-2H-铬-2-酮(3)碳谱图;
图5为本发明化合物E-suberenol氢谱图;
图6为本发明化合物E-suberenol碳谱图。
具体实施方式
请参阅图1-图6,本发明提供一种技术方案:一种香豆素化合物E-Suberenol的合成工艺,该香豆素化合物E-Suberenol的合成工艺包括以下步骤,
步骤一:5-溴-2-羟基-4-甲氧基苯甲醛(17)的合成:
氮气环境下,称取2-羟基-4-甲氧基苯甲醛(16)(5g,33.0mmol)置于干燥的圆底烧瓶中,加入100mL二氯甲烷(DCM)后置于-20℃环境体系中,然后用恒压滴液漏斗缓慢滴加溴(1.7mL,33.0mmol)的DCM溶液(40mL),滴加完毕后保持-20℃反应10小时,后恢复至室温;待反应结束后加入10mL水淬灭反应,然后用DCM萃取3次,合并DCM相,水洗有机相1次,盐洗1次,无水硫酸钠干燥;过滤,旋干溶剂干法上样(洗脱剂,PE:EA=100:1至35:1),得到白色粉末状固体(7.01g,92%)。
5-溴-2-羟基-4-甲氧基苯甲醛结构表征数据:
1HNMR(400MHz,CDCl3)δ11.43(s,1H),9.68(s,1H),7.67(s,1H),6.47(s,1H),3.94(s,3H);
13C NMR(100MHz,CDCl3)δ193.69,163.69,162.56,137.26,115.75,102.14,100.40,56.79;
IR(KBr):3423.16,2949.95,2849.27,2347.53,1635.93,1499.15,1361.11,1289.78,1240.24,1062.87,759.71,645.90,539.88cm-1;
HRMS(EI)calcd for C8H7BrO3[M-H]-228.9504,found 228.9506.
步骤二:6-溴-7-甲氧基-2H-铬-2-酮(3)的合成:
氮气环境下,称取5-溴-2-羟基-4-甲氧基苯甲醛(17)(3g,13mmol)置于封管内,然后迅速称取乙酸铯(2.5g,13mmol)加入到封管中,最后加入10mL的乙酸酐;TLC监测反应,反应约10h后,移出加热,待冷却以后,用乙酸乙酯(EA)稀释转移至分液漏斗中,用热水洗涤反应液2次,,饱和食盐水洗1次,合并有机相,用无水硫酸钠干燥;过滤,旋干,干法上样(洗脱剂,PE:EA=5:1至2:1),得到淡黄色粉末固体(2.42g,73%)。
6-溴-7-甲氧基-2H-铬-2-酮(3)结构表征数据:
1H NMR(400MHz,CDCl3)δ7.65(s,1H),7.58(d,1H,J=9.5Hz,),6.83(s,1H),6.29(d,1H,J=9.5Hz),3.96(s,3H).;
13C NMR(100MHz,CDCl3)δ160.51,158.59,154.94,142.32,131.42,114.20,113.31,107.61,100.22,56.80;
IR(KBr):3420.10,3285.39,3066.57,2344.55,1731.58,1601.17,1371.41,1261.69,1211.35,1036.02,890.98,693.81,513.00cm-1;
HRMS(EI)calcd for C10H7O3Br[M+H]+254.9687,found 254.9651.
步骤三:E-suberenol(12)的合成:
在氮气保护下,封管中装入磁子后,吹入氮气,然后称取6-溴-7-甲氧基-2H-铬-2-酮(3)(50mg,0.2mmol)以及Pd2(dba)3(7.1mg,0.008mmol)快速的装入封管中,之后将密封的封管进行抽气换气3次(油泵抽真空,再充入氮气),每次油泵大约抽5min,抽气换气完毕后,依次加入1.5mL的甲苯,三叔丁基膦的10%甲苯溶液(96μL,0.04mmol),三乙胺(41μL,0.3mmol)以及2-甲基-3-丁烯-2-醇(13)(92μL,0.9mmol);所有的试剂加完以后,然后将封管移入110℃下进行反应约10min;TLC点板监测反应完毕后加入2mL NaHCO3水溶液淬灭反应,搅拌5min后,用EA转移通过硅胶短柱除去不溶性固体,并用EA(50mL)洗涤;滤液用EA稀释并用水洗3遍,饱和食盐水洗1遍;合并的有机层用无水Na2SO4干燥,过滤有机相,浓缩得到粗产物;湿法上样柱层析(洗脱剂,PE:EA=8:1至2:1)纯化后,得到化合物E-suberenol:(51mg,产率98%产率)。
作为本发明的进一步方案,步骤三E-suberenol(12)的合成还包括E-suberenol(12)的常压合成:
在氮气保护下,向双颈圆底烧瓶中加入6-溴-7-甲氧基-2H-铬-2-酮(3)(1.02g,4.0mmol)、双(三叔丁基膦)钯(0)(204.4mg,0.4mmol)、甲苯(15mL)、三乙胺(834μL,6.0mmol)、1,1-二甲基烯丙醇13(1.88mL,18.0mmol);然后将反应瓶密封并置于90℃油浴中;反应完成后(通过TLC监测,约12分钟),将反应混合物冷却至室温,加入NaHCO3水溶液,然后搅拌5分钟;用EA转移通过硅胶短柱除去不溶性固体,并用EA(100mL)洗涤;滤液用EA稀释并用水洗3遍,饱和食盐水洗1遍;合并的有机层用无水Na2SO4干燥,过滤有机相,浓缩得到粗产物;湿法上样柱层析(洗脱剂,PE:EA=8:1至2:1)纯化后,得到化合物E-suberenol:(1.02g,98%yield)。
化合物E-suberenol结构表征数据:
1H NMR(400MHz,CDCl3)δ7.63(d,1H,J=9.4Hz),7.48(s,1H),6.85(d,1H,J=16.2Hz),6.78(s,1H),6.36(d,1H,J=16.2Hz),6.26(d,1H,J=9.4Hz),3.90(s,3H),1.44(s,6H).;
13C NMR(100MHz,CDCl3)δ161.20,159.93,155.11,143.49,139.20,125.33,123.78,119.74,113.39,112.20,98.94,71.26,56.00,29.91;
IR(KBr):3838.15,3732.92,3433.47,2932.10,2345.14,1728.08,1611.93,1356.06,1210.07,1020.71,830.13,675.92cm-1;
HRMS(EI)calcd for C15H16O4[M+Na]+283.0940,found 283.0941.
作为本发明的进一步方案,6-溴-7-甲氧基-2H-铬-2-酮(17)的合成过程中,碳酸钾可以被替换为乙酸钾、乙酸钠、碳酸铯、磷酸钾、乙酸铯、碳酸钠、碳酸钠(一水、七水、十水)、碳酸氢钠、碳酸钾、碳酸氢钾、碳酸钾、碳酸氢钾、磷酸一氢钠、磷酸二氢钠、磷酸一氢钾、磷酸二氢钾、磷酸钠、磷酸钙、氢氧化钾、氢氧化钡、氢氧化钙、氢氧化铝、氢氧化锂、氢氧化镁、氢氧化锌、氢氧化铜、氢氧化铁、氢氧化铅、氢氧化钴、氢氧化铬、氢氧化锆、氢氧化镍、氢氧化铵中的一种或者不添加碱。
作为本发明的进一步方案,所述6-溴-7-甲氧基-2H-铬-2-酮(17)的合成过程中,碱的当量为0.5eq.-1.5eq.之间。
作为本发明的进一步方案,所述6-溴-7-甲氧基-2H-铬-2-酮(17)的合成过程中,温度在130℃-180℃之间。
作为本发明的进一步方案,所述E-suberenol(12)的合成中,中和步骤碳酸氢钠饱和溶液可以替换为碳酸氢钾、碳酸钠、碳酸钾、碳酸钙、磷酸一氢钠、磷酸二氢钠、磷酸一氢钾、磷酸二氢钾、磷酸钾、磷酸钠、磷酸钙。
作为本发明的进一步方案,所述E-suberenol(12)的合成中,所用三(二亚苄基丙酮)二钯催化剂可替换为氯化钯、四三苯基膦钯、三(二亚苄基丙酮)二钯-氯仿加合物、醋酸钯、钯碳、四三苯基膦氯化钯、三氟醋酸钯、二(三叔丁基膦)钯、[1,1'-双(二叔丁基膦)二茂铁]二氯化钯(II)或者不添加催化剂。
作为本发明的进一步方案,所述E-suberenol(12)的合成中,所用三叔丁基膦可替换为三苯基膦、三甲基膦、三(邻甲基苯基)磷、三环己基膦、三环己基膦氟硼酸盐、三正丁基磷、4,5-双二苯基膦-9,9-二甲基氧杂蒽、双(2-二苯基磷苯基)醚、三(2-呋喃基)膦、四氟硼酸三叔丁基膦、1,2-双(二苯基膦)乙烷、1,3-双(二苯基膦)丙烷、1,4-双(二苯基膦)丁烷、2-(二叔丁基膦)联苯、2-(二环己基膦基)联苯、2-双环己基膦-2',6'-二甲氧基联苯、2-二环己膦基-2'-(N,N-二甲胺)-联苯、2-二环己基膦-2',4',6'-三异丙基联苯、正丁基二(1-金刚烷基)膦、1,1'-双(二异丙基膦)二茂铁、R-(+)-1,1'-联萘-2.2'-双二苯膦、1.1'-联-2-萘酚、5,5'-双(二苯基磷酰)-4,4'-二-1,3-联苯、双二苯基磷酰联萘、双(2-二苯基磷苯基)醚、1,1-二(二-叔丁基膦基)-二茂铁、2-二叔丁基膦-2',4',6'-三异丙基联苯、四三苯基膦氯化钯、二(三叔丁基膦)钯、[1,1'-双(二叔丁基膦)二茂铁]二氯化钯(II)或者不添加配体。
作为本发明的进一步方案,所述E-suberenol(12)的合成中三乙胺可替换为三正丙胺、N,N-二异丙基乙胺、N,N-二乙基苯胺、三正辛胺、N,N-环己基甲胺、吡啶、4-二甲氨基吡啶、1,8-二氮杂双环[5.4.0]十一碳-7-烯、1,4-二氮杂二环[2.2.2]辛烷、四丁基氯化铵、四丁基溴化铵、三乙烯二胺、N-甲基二环己基胺、四丁基氢氧化铵、醋酸钾、醋酸钠、碳酸氢钠、碳酸氢钾、碳酸氢铵、碳酸钠、碳酸钾、碳酸铵、碳酸钙、碳酸铯、磷酸一氢钠、磷酸二氢钠、磷酸一氢钾、磷酸二氢钾、磷酸钾、磷酸钠、磷酸钙或者不添加碱。
作为本发明的进一步方案,所述E-suberenol(12)的合成中甲苯可替换四氢呋喃、N,N-二甲基甲酰胺、N,N-二甲基乙酰胺、N-甲基吡咯烷酮、苯、二甲苯、1,4-二氧六环、乙二醇二甲醚、乙二醇二乙醚、1,2-二氯乙烷,聚乙二醇、乙腈、氯代苯,二甲基亚砜或者不添加溶剂。
作为本发明的进一步方案,所述E-suberenol(12)的合成的实验温度在20℃-145℃之间;所述E-suberenol(12)的常压合成中,反应温度在40℃-145℃之间。
Claims (1)
1.一种香豆素化合物(E)-Suberenol的合成工艺,其特征在于:
步骤一:5-溴-2-羟基-4-甲氧基苯甲醛(17)的合成:氮气环境下,称取2-羟基-4-甲氧基苯甲醛(16)5 g,置于干燥的圆底烧瓶中,加入100 mL二氯甲烷后置于-20℃环境体系中,然后用恒压滴液漏斗缓慢滴加溴1.7 mL的DCM溶液40 mL,滴加完毕后保持-20℃反应10小时,后恢复至室温,待反应结束后加入10 mL水淬灭反应,然后用DCM萃取3次,合并DCM相,水洗有机相1次,盐洗1次,无水硫酸钠干燥,过滤,旋干溶剂干法上样,洗脱剂,PE:EA=100:1至35:1,得到白色粉末状固体;
步骤二:化合物(3)的合成:氮气环境下,称取5-溴-2-羟基-4-甲氧基苯甲醛(17)3 g,置于封管内,然后迅速称取乙酸铯2.5 g加入到封管中,最后加入10 mL的乙酸酐,TLC监测反应,反应约10 h后,移出加热,待冷却以后,用乙酸乙酯稀释转移至分液漏斗中,用热水洗涤反应液2次,饱和食盐水洗1次,合并有机相,用无水硫酸钠干燥,过滤,旋干,干法上样,洗脱剂,PE:EA=5:1至2:1,得到淡黄色粉末固体;
步骤三:E-suberenol(12)的合成:在氮气保护下,封管中装入磁子后,吹入氮气,然后称取化合物(3)50 mg以及Pd2(dba)37.1mg快速的装入封管中,之后将密封的封管进行抽气换气3次,每次油泵大约抽5 min,抽气换气完毕后,依次加入1.5 mL的甲苯,三叔丁基膦的10%甲苯溶液96 μL,三乙胺41 μL以及2-甲基-3-丁烯-2-醇92 μL;所有的试剂加完以后,然后将封管移入110 ℃下进行反应约10min,TLC点板监测反应完毕后加入2 mL NaHCO3水溶液淬灭反应,搅拌5 min后,用EA转移通过硅胶短柱除去不溶性固体,并用EA50 mL洗涤,滤液用EA稀释并用水洗3遍,饱和食盐水洗1遍,合并的有机层用无水Na2SO4干燥,过滤有机相,浓缩得到粗产物,湿法上样柱层析,洗脱剂,PE:EA=8:1至2:1,纯化后,得到化合物E-suberenol。
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