CN115636778B - 一种3-季碳取代吲哚啉-2-酮化合物的合成方法 - Google Patents
一种3-季碳取代吲哚啉-2-酮化合物的合成方法 Download PDFInfo
- Publication number
- CN115636778B CN115636778B CN202211410491.8A CN202211410491A CN115636778B CN 115636778 B CN115636778 B CN 115636778B CN 202211410491 A CN202211410491 A CN 202211410491A CN 115636778 B CN115636778 B CN 115636778B
- Authority
- CN
- China
- Prior art keywords
- reaction
- mmol
- indole
- compound
- solvent
- 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.)
- Active
Links
- 238000001308 synthesis method Methods 0.000 title claims description 3
- 229910052799 carbon Inorganic materials 0.000 title abstract description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title abstract description 14
- 238000006243 chemical reaction Methods 0.000 claims abstract description 179
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims abstract description 132
- 229910052786 argon Inorganic materials 0.000 claims abstract description 66
- 239000002904 solvent Substances 0.000 claims abstract description 52
- 239000003054 catalyst Substances 0.000 claims abstract description 49
- 238000003756 stirring Methods 0.000 claims abstract description 28
- 238000000034 method Methods 0.000 claims abstract description 14
- -1 indoline-2-one compound Chemical class 0.000 claims abstract description 12
- 230000002194 synthesizing effect Effects 0.000 claims abstract description 12
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 222
- 238000001704 evaporation Methods 0.000 claims description 35
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 14
- 239000010949 copper Substances 0.000 claims description 14
- 239000000741 silica gel Substances 0.000 claims description 14
- 229910002027 silica gel Inorganic materials 0.000 claims description 14
- 150000001875 compounds Chemical class 0.000 claims description 10
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 9
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 150000002148 esters Chemical class 0.000 claims description 6
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical compound ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 claims description 4
- 150000001989 diazonium salts Chemical class 0.000 claims description 4
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims description 4
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 238000004440 column chromatography Methods 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 238000003786 synthesis reaction Methods 0.000 claims description 3
- IQHSSYROJYPFDV-UHFFFAOYSA-N 2-bromo-1,3-dichloro-5-(trifluoromethyl)benzene Chemical group FC(F)(F)C1=CC(Cl)=C(Br)C(Cl)=C1 IQHSSYROJYPFDV-UHFFFAOYSA-N 0.000 claims description 2
- 125000004182 2-chlorophenyl group Chemical group [H]C1=C([H])C(Cl)=C(*)C([H])=C1[H] 0.000 claims description 2
- 125000001622 2-naphthyl group Chemical group [H]C1=C([H])C([H])=C2C([H])=C(*)C([H])=C([H])C2=C1[H] 0.000 claims description 2
- 125000004189 3,4-dichlorophenyl group Chemical group [H]C1=C([H])C(Cl)=C(Cl)C([H])=C1* 0.000 claims description 2
- 125000004179 3-chlorophenyl group Chemical group [H]C1=C([H])C(*)=C([H])C(Cl)=C1[H] 0.000 claims description 2
- 125000004800 4-bromophenyl group Chemical group [H]C1=C([H])C(*)=C([H])C([H])=C1Br 0.000 claims description 2
- 125000004172 4-methoxyphenyl group Chemical group [H]C1=C([H])C(OC([H])([H])[H])=C([H])C([H])=C1* 0.000 claims description 2
- 125000004199 4-trifluoromethylphenyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1*)C(F)(F)F 0.000 claims description 2
- BZLVMXJERCGZMT-UHFFFAOYSA-N Methyl tert-butyl ether Chemical compound COC(C)(C)C BZLVMXJERCGZMT-UHFFFAOYSA-N 0.000 claims description 2
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 claims description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 2
- 125000000040 m-tolyl group Chemical group [H]C1=C([H])C(*)=C([H])C(=C1[H])C([H])([H])[H] 0.000 claims description 2
- 125000003854 p-chlorophenyl group Chemical group [H]C1=C([H])C(*)=C([H])C([H])=C1Cl 0.000 claims description 2
- 125000001037 p-tolyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1*)C([H])([H])[H] 0.000 claims description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 2
- 238000010898 silica gel chromatography Methods 0.000 abstract description 42
- 239000000203 mixture Substances 0.000 abstract description 13
- 150000001879 copper Chemical class 0.000 abstract description 4
- 239000003814 drug Substances 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract description 4
- 239000000758 substrate Substances 0.000 abstract description 4
- 229940079593 drug Drugs 0.000 abstract description 3
- BXEFQPCKQSTMKA-UHFFFAOYSA-N OC(=O)C=[N+]=[N-] Chemical compound OC(=O)C=[N+]=[N-] BXEFQPCKQSTMKA-UHFFFAOYSA-N 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 168
- HEDRZPFGACZZDS-MICDWDOJSA-N Trichloro(2H)methane Chemical compound [2H]C(Cl)(Cl)Cl HEDRZPFGACZZDS-MICDWDOJSA-N 0.000 description 168
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 108
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 74
- 239000000047 product Substances 0.000 description 58
- 239000003208 petroleum Substances 0.000 description 54
- 239000003480 eluent Substances 0.000 description 53
- 238000004896 high resolution mass spectrometry Methods 0.000 description 43
- 238000005160 1H NMR spectroscopy Methods 0.000 description 42
- 238000001644 13C nuclear magnetic resonance spectroscopy Methods 0.000 description 41
- 239000007787 solid Substances 0.000 description 41
- IJGRMHOSHXDMSA-UHFFFAOYSA-O diazynium Chemical class [NH+]#N IJGRMHOSHXDMSA-UHFFFAOYSA-O 0.000 description 39
- 238000011049 filling Methods 0.000 description 37
- 238000007789 sealing Methods 0.000 description 37
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 37
- 238000000746 purification Methods 0.000 description 33
- 230000008020 evaporation Effects 0.000 description 32
- 239000012074 organic phase Substances 0.000 description 14
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 12
- IUBQJLUDMLPAGT-UHFFFAOYSA-N potassium bis(trimethylsilyl)amide Chemical compound C[Si](C)(C)N([K])[Si](C)(C)C IUBQJLUDMLPAGT-UHFFFAOYSA-N 0.000 description 12
- XMJHPCRAQCTCFT-UHFFFAOYSA-N methyl chloroformate Chemical compound COC(Cl)=O XMJHPCRAQCTCFT-UHFFFAOYSA-N 0.000 description 11
- 238000010791 quenching Methods 0.000 description 11
- 238000012546 transfer Methods 0.000 description 11
- 239000003921 oil Substances 0.000 description 10
- 235000019198 oils Nutrition 0.000 description 10
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 6
- 150000008049 diazo compounds Chemical class 0.000 description 4
- JYGFTBXVXVMTGB-UHFFFAOYSA-N indolin-2-one Chemical compound C1=CC=C2NC(=O)CC2=C1 JYGFTBXVXVMTGB-UHFFFAOYSA-N 0.000 description 4
- 238000013508 migration Methods 0.000 description 4
- 230000005012 migration Effects 0.000 description 4
- RSQUAQMIGSMNNE-UHFFFAOYSA-N 1-methyl-3h-indol-2-one Chemical compound C1=CC=C2N(C)C(=O)CC2=C1 RSQUAQMIGSMNNE-UHFFFAOYSA-N 0.000 description 3
- 238000004293 19F NMR spectroscopy Methods 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- UBQKCCHYAOITMY-UHFFFAOYSA-N pyridin-2-ol Chemical compound OC1=CC=CC=N1 UBQKCCHYAOITMY-UHFFFAOYSA-N 0.000 description 3
- 239000010948 rhodium Substances 0.000 description 3
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- 239000012298 atmosphere Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- FGFUBBNNYLNVLJ-UHFFFAOYSA-N indolone Natural products C1=CC=C2C(=O)C=NC2=C1 FGFUBBNNYLNVLJ-UHFFFAOYSA-N 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 150000005623 oxindoles Chemical class 0.000 description 2
- 230000008707 rearrangement Effects 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OSKUFVWHNUVFJR-UHFFFAOYSA-N 1,5-dimethyl-3h-indol-2-one Chemical compound CC1=CC=C2N(C)C(=O)CC2=C1 OSKUFVWHNUVFJR-UHFFFAOYSA-N 0.000 description 1
- JGOPTKIFPPFPNW-UHFFFAOYSA-N 1,7-dimethyl-3h-indol-2-one Chemical compound C1=CC(C)=C2N(C)C(=O)CC2=C1 JGOPTKIFPPFPNW-UHFFFAOYSA-N 0.000 description 1
- QHXKZUNCOGOKRX-UHFFFAOYSA-N 1-benzyl-3h-indol-2-one Chemical compound O=C1CC2=CC=CC=C2N1CC1=CC=CC=C1 QHXKZUNCOGOKRX-UHFFFAOYSA-N 0.000 description 1
- BXGYNKZNIBNJSW-UHFFFAOYSA-N 1-propan-2-yl-3h-indol-2-one Chemical compound C1=CC=C2N(C(C)C)C(=O)CC2=C1 BXGYNKZNIBNJSW-UHFFFAOYSA-N 0.000 description 1
- VZSRBBMJRBPUNF-UHFFFAOYSA-N 2-(2,3-dihydro-1H-inden-2-ylamino)-N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]pyrimidine-5-carboxamide Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C(=O)NCCC(N1CC2=C(CC1)NN=N2)=O VZSRBBMJRBPUNF-UHFFFAOYSA-N 0.000 description 1
- YYTXVBYHPIORNO-UHFFFAOYSA-N 4-bromo-1-methyl-3h-indol-2-one Chemical compound C1=CC=C(Br)C2=C1N(C)C(=O)C2 YYTXVBYHPIORNO-UHFFFAOYSA-N 0.000 description 1
- WARSUKBSFLACOI-UHFFFAOYSA-N 5-bromo-1-methyl-3h-indol-2-one Chemical compound BrC1=CC=C2N(C)C(=O)CC2=C1 WARSUKBSFLACOI-UHFFFAOYSA-N 0.000 description 1
- WROABDKGDNIESH-UHFFFAOYSA-N 5-fluoro-1-methyl-3h-indol-2-one Chemical compound FC1=CC=C2N(C)C(=O)CC2=C1 WROABDKGDNIESH-UHFFFAOYSA-N 0.000 description 1
- YXVGOFNUARFVQV-UHFFFAOYSA-N 5-methoxy-1-methyl-3h-indol-2-one Chemical compound COC1=CC=C2N(C)C(=O)CC2=C1 YXVGOFNUARFVQV-UHFFFAOYSA-N 0.000 description 1
- UUQLZGHQLZAFHD-UHFFFAOYSA-N 6-bromo-1-methyl-3h-indol-2-one Chemical compound C1=C(Br)C=C2N(C)C(=O)CC2=C1 UUQLZGHQLZAFHD-UHFFFAOYSA-N 0.000 description 1
- AWVDLMBXNGKBAX-UHFFFAOYSA-N 6-methoxy-1-methyl-3h-indol-2-one Chemical compound COC1=CC=C2CC(=O)N(C)C2=C1 AWVDLMBXNGKBAX-UHFFFAOYSA-N 0.000 description 1
- IJTCWHCJVADLDZ-UHFFFAOYSA-N 7-bromo-1-methyl-3h-indol-2-one Chemical compound C1=CC(Br)=C2N(C)C(=O)CC2=C1 IJTCWHCJVADLDZ-UHFFFAOYSA-N 0.000 description 1
- 239000002841 Lewis acid Substances 0.000 description 1
- 238000005481 NMR spectroscopy Methods 0.000 description 1
- 235000019502 Orange oil Nutrition 0.000 description 1
- 229930013930 alkaloid Natural products 0.000 description 1
- 150000003797 alkaloid derivatives Chemical class 0.000 description 1
- 230000000078 anti-malarial effect Effects 0.000 description 1
- 230000000845 anti-microbial effect Effects 0.000 description 1
- 230000000259 anti-tumor effect Effects 0.000 description 1
- 230000000840 anti-viral effect Effects 0.000 description 1
- 239000003430 antimalarial agent Substances 0.000 description 1
- 239000012300 argon atmosphere Substances 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000007810 chemical reaction solvent Substances 0.000 description 1
- YNYHGRUPNQLZHB-UHFFFAOYSA-M copper(1+);trifluoromethanesulfonate Chemical compound [Cu+].[O-]S(=O)(=O)C(F)(F)F YNYHGRUPNQLZHB-UHFFFAOYSA-M 0.000 description 1
- SBTSVTLGWRLWOD-UHFFFAOYSA-L copper(ii) triflate Chemical compound [Cu+2].[O-]S(=O)(=O)C(F)(F)F.[O-]S(=O)(=O)C(F)(F)F SBTSVTLGWRLWOD-UHFFFAOYSA-L 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000012039 electrophile Substances 0.000 description 1
- RIFGWPKJUGCATF-UHFFFAOYSA-N ethyl chloroformate Chemical compound CCOC(Cl)=O RIFGWPKJUGCATF-UHFFFAOYSA-N 0.000 description 1
- QNLOWBMKUIXCOW-UHFFFAOYSA-N indol-2-one Chemical compound C1=CC=CC2=NC(=O)C=C21 QNLOWBMKUIXCOW-UHFFFAOYSA-N 0.000 description 1
- 150000002475 indoles Chemical class 0.000 description 1
- 238000009830 intercalation Methods 0.000 description 1
- 230000002687 intercalation Effects 0.000 description 1
- 238000003402 intramolecular cyclocondensation reaction Methods 0.000 description 1
- 150000007517 lewis acids Chemical class 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- HZVOZRGWRWCICA-UHFFFAOYSA-N methanediyl Chemical compound [CH2] HZVOZRGWRWCICA-UHFFFAOYSA-N 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 229930014626 natural product Natural products 0.000 description 1
- 238000010534 nucleophilic substitution reaction Methods 0.000 description 1
- 239000010502 orange oil Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- IVRIRQXJSNCSPQ-UHFFFAOYSA-N propan-2-yl carbonochloridate Chemical compound CC(C)OC(Cl)=O IVRIRQXJSNCSPQ-UHFFFAOYSA-N 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000006462 rearrangement reaction Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 150000003283 rhodium Chemical class 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
- 238000010189 synthetic method Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Landscapes
- Indole Compounds (AREA)
Abstract
本发明属于有机化工医药领域,涉及一种3‑季碳取代吲哚啉‑2‑酮化合物的合成方法。本发明以吲哚‑2‑碳酸酯衍生物、重氮乙酸酯为原料,铜盐作为催化剂,再加入适量的溶剂,密封充氩气反应,在室温附近搅拌反应一段时间,反应结束后减压蒸去溶剂,产物经硅胶柱层析分离得到目标产物,实现了合成3‑季碳取代吲哚啉‑2‑酮化合物。本方法优点有:原料简单、底物适应性广、效率高、原子经济较好。
Description
技术领域
本发明属于有机化工医药领域,涉及金属铜盐催化的吲哚-2-碳酸酯衍生物与重氮化合物反应,通过1,4-酯基迁移合成3-季碳取代吲哚啉-2-酮化合物的方法。
背景技术
3-官能团化的吲哚啉-2-酮是一种具有多种药物活性(抗肿瘤、抗微生物、抗病毒和抗疟疾等)和生物碱活性的核心骨架(Ye,N.,et al.ACS Infect.Dis.,2016,2,382;Santos,M.M.M.,et al.Tetrahedron.,2014,70,9735),广泛的存在于天然产物以及药物分子中,因而合成这一骨架化合物引起了广泛的关注。
传统的合成3-官能团化吲哚啉-2-酮的方法主要有通过吲哚的氧化来合成(Xu,J.,et al.Nat.Commun.,2019,10,4754)。由于底物适用性方面的限制,该方法主要用于3号位螺环吲哚啉-2-酮的合成。另一种合成3-官能团化吲哚啉-2-酮的方法是路易斯酸催化的芳基酰胺烯基酯分子内环化来合成(Shoko,Y.,et al.Org.Biomol.Chem.,2004,2,3134)。该方法原料合成较为复杂,并且仅仅能得到3-叔碳中心吲哚酮产物。
由于吲哚啉-2-酮,3位碳和2-位上的氧的双亲核性,直接亲核取代不仅副产物多,并且亲电试剂有季碳中心的时候,还有消除副产物。最近我们报道了一种1,4-酰基重排(Guangyang,X.,et al.Angew.Chem.,Int.Ed.,2019,58,1980–1984),使用铑作为催化剂催化2-氧吡啶与重氮化合物反应得到N-季碳取代吡啶酮。
发明内容
基于已有的重排反应中常用昂贵的铑盐作为催化剂,本发明设计了一种全新的吲哚-2-碳酸酯衍生物与重氮乙酸酯化合物通过先形成铜卡宾,迁移插入后,经历1,4-酯基迁移合成3-季碳取代吲哚啉酮化合物。利用该策略,可以高效的利用更为廉价的铜盐催化,实现从市售易得或易制备的吲哚-2-碳酸酯衍生物和重氮乙酸酯化合物为原料,合成3-季碳取代吲哚啉-2-酮衍生物。该反应原料简单,反应效率高,原子经济性较好,高效合成的具有潜在药物活性的3-季碳取代吲哚啉-2-酮衍生物。
为了实现上述技术目的,本发明采用的技术方案为:
本发明通过吲哚-2-碳酸酯衍生物1,4-酯基迁移合成3-季碳取代吲哚啉酮化合物,反应首先加入铜催化剂与吲哚-2-碳酸酯衍生物,再加入适量的溶剂并用氩气保护,加入重氮乙酸酯化合物,在一定温度下搅拌反应一定时间,待反应结束后减压蒸去溶剂,以硅胶吸附,通过柱层析分离得到目标产物;实现了以吲哚-2-碳酸酯衍生物、重氮化合物为原料,廉价铜催化,通过1,4-酯基迁移合成3号位含季碳中心的吲哚啉-2-酮衍生物。所有产物其结构经1H NMR、13C NMR、HRMS、X射线单晶结构和熔点确证。该反应效率高,底物适应性较广,原子经济性较好。
反应后用柱色谱分离方法提纯,以石油醚与乙酸乙酯的混合溶剂为洗脱剂,对产物进行提纯以得到纯净的3-季碳取代吲哚啉-2-酮化合物。
3-季碳取代吲哚啉-2-酮化合物合成方法为:
其中,R为甲基、乙基、异丙基;R1为甲基、苄基、异丙基;R2为4-溴、5-甲基、5-甲氧基、5-溴、5-氟、6-溴、6-甲氧基、7-溴、7-甲基;Ar为苯基、4-甲基苯基、4-叔丁基苯基、4-甲氧基苯基、4-氯苯基、4-溴苯基、4-三氟甲基苯基、3,4-二氯苯基、3-甲基苯基、3-氯苯基、2-氯苯基、萘-2-基、氢。
所用的Cu催化剂为CuTc(噻吩-2-甲酸亚铜(I))、Cu(OTf)2(三氟甲烷磺酸铜(Ⅱ))、CuOTf·tol1/2(三氟甲烷磺酸亚铜(I).1/2甲苯)、Cu(MeCN)4PF6,用量为吲哚-2-碳酸酯衍生物摩尔数的1-10%。;最佳催化剂为CuTc,用量为吲哚-2-碳酸酯衍生物摩尔数的5%。
吲哚-2-碳酸酯衍生物为下述结构:
重氮化合物包括下述结构:
重氮化合物的用量为吲哚-2-碳酸酯衍生物用量的1~2当量。
先加入铜催化剂与吲哚-2-碳酸酯衍生物,再加入适量的溶剂并用氩气保护,在通氩气条件下,加入重氮乙酸酯化合物,在25~70℃搅拌反应0.2-12小时,待反应结束后减压蒸去溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/5]纯化得到产物。
进一步,反应溶剂为有机溶剂。具体的有机溶剂为甲苯、1,2-二氯乙烷、乙腈、甲基叔丁基醚、三氯甲烷、二氯甲烷中的一种。
吲哚-2-碳酸酯衍生物在溶剂中的浓度为0.01~0.1mol/L
本发明开发了一种合成3-季碳取代吲哚啉酮化合物的方法。
有益效果:
1).使用廉价的铜盐作为催化剂,底物廉价易得或者易合成。
2).反应条件较为温和,反应时间较短,效率较高。
3).原子经济性高。
4).可以高效获得稀有的3-季碳中心吲哚酮化合物,极大丰富了这类化合物的结构,为这类结构药物筛选提供分子库。
附图说明:
图1为实施例1得到的3aa的1H-NMR(核磁氢谱);
图2为实施例1得到的3aa的13C-NMR(核磁碳谱);
图3为实施例1得到的3aa的HRMS(高分辨质谱)。
具体实施方式
下面结合实施例对本发明做进一步描述,但不限于此。
实施例1
在氩气保护下向100mL的烧瓶中加入24mL、1.0mol/L的KHMDS的四氢呋喃溶液并置于-78℃环境中,边搅拌边加入溶于30mL四氢呋喃溶液的2.94g 1-甲基-2-吲哚啉酮。加料完毕后,将烧瓶转移到室温反应5min,加入1M稀盐酸20mL淬灭反应。随后用30mL乙酸乙酯萃取3次,减压蒸去有机相溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/30]纯化,得到淡黄色油1a1.07g,收率26%。1H NMR(400MHz,CDCl3)δ7.55(d,J=7.8Hz,1H),7.24(d,J=8.2Hz,1H),7.19(dd,J1=8.2Hz,J2=6.8Hz,1H),7.12(dd,J1=7.8Hz,J2=6.8Hz,1H)6.29(s,1H),3.95(s,3H),3.61(s,3H).13C NMR(75MHz,CDCl3)δ152.4,142.8,132.6,125.9,121.4,120.7,120.2,109.0,87.2,56.1,28.3.HRMS(ESI)m/z:[M+H]+Calcdfor C11H12NO3 206.0812;Found 206.0808.
向反应管中依次加入催化剂CuTc 1.9mg(0.01mmol)、吲哚-2-碳酸酯衍生物1a41mg(0.2mmol)和2mL二氯甲烷,重氮衍生物2a 63.4mg(0.36mmol)和2mL二氯甲烷,密封充氩气反应。反应在60℃下反应6h,反应结束后减压蒸去溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/5]纯化得到白色固体3aa54mg,收率77%。m.p.163-165℃;1HNMR(400MHz,CDCl3)δ7.19-7.14(m,6H),7.11(d,J=7.7Hz,1H),6.86(t,J=7.7Hz,1H),6.58(d,J=7.7Hz,1H),4.67(s,1H),3.87(s,3H),3.84(s,3H),3.08(s,3H).13C NMR(100MHz,CDCl3)δ174.8,170.4,168.7,144.4,133.6,128.8,128.4,127.9,127.7,126.6,125.2,122.2,107.8,65.9,53.4,53.2,51.4,26.2.HRMS(ESI)m/z:[M+H]+Calcd forC20H20NO5354.1336;Found 354.1340.
实施例1-1
克级反应:向250ml圆底烧瓶中依次加入催化剂CuTc 38mg(0.2mmol)、吲哚-2-碳酸酯衍生物1a 0.82g(4mmol)和60mL二氯甲烷,重氮衍生物2a 1.27g(7.2mmol)和20mL二氯甲烷。在氩气环境中,60℃下冷凝回流反应6h,反应结束后减压蒸去溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/5]纯化得到白色固体3aa 1.03g,收率73%。
实施例2
向反应管中依次加入催化剂Cu(OTf)2 3.6mg(0.01mmol),2mL二氯甲烷,再加入吲哚-2-碳酸酯衍生物1a 41mg(0.2mmol),重氮衍生物2a 42.4mg(0.24mmol)和2mL二氯甲烷。密封充氩气反应。反应在25℃下反应20min,反应结束后减压蒸去溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/5]纯化得到白色固体3aa 28.2mg,收率40%。
实施例3
向反应管中依次加入催化剂CuOTf·tol1/2 5.2mg(0.01mmol),2mL二氯甲烷,再加入吲哚-2-碳酸酯衍生物1a 41mg(0.2mmol),重氮衍生物2a 42.4mg(0.24mmol)和2mL二氯甲烷。密封充氩气反应。反应在25℃下反应20min,反应结束后减压蒸去溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/5]纯化得到白色固体3aa 29.7mg,收率42%。
实施例4
向反应管中依次加入催化剂Cu(MeCN)4PF6 3.7mg(0.01mmol),2mL二氯甲烷,再加入吲哚-2-碳酸酯衍生物1a 41mg(0.2mmol),重氮衍生物2a 42.4mg(0.24mmol)和2mL二氯甲烷。密封充氩气反应。反应在25℃下反应10min,反应结束后减压蒸去溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/5]纯化得到白色固体3aa 28.9mg,收率41%。
实施例5
向反应管中依次加入催化剂CuTc 1.9mg(0.01mmol),2mL二氯甲烷,再加入吲哚-2-碳酸酯衍生物1a 41mg(0.2mmol),重氮衍生物2a 42.4mg(0.24mmol)和2mL二氯甲烷。密封充氩气反应。反应在25℃下反应10min,反应结束后减压蒸去溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/5]纯化得到白色固体3aa 45.9mg,收率65%。
实施例6
向反应管中依次加入催化剂CuTc 1.9mg(0.01mmol),2mL甲苯,再加入吲哚-2-碳酸酯衍生物1a 41mg(0.2mmol),重氮衍生物2a 42.4mg(0.24mmol)和2mL甲苯。密封充氩气反应。反应在25℃下反应48h,反应结束后减压蒸去溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/5]纯化得到白色固体3aa 21.9mg,收率31%。
实施例7
向反应管中依次加入催化剂CuTc 1.9mg(0.01mmol),2mL 1,2-二氯乙烷,再加入吲哚-2-碳酸酯衍生物1a 41mg(0.2mmol),重氮衍生物2a 42.4mg(0.24mmol)和2mL 1,2-二氯乙烷。密封充氩气反应。反应在25℃下反应48h,反应结束后减压蒸去溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/5]纯化得到白色固体3aa 25.4mg,收率36%。
实施例8
向反应管中依次加入催化剂CuTc 1.9mg(0.01mmol),2mL三氯甲烷,再加入吲哚-2-碳酸酯衍生物1a 41mg(0.2mmol),重氮衍生物2a 42.4mg(0.24mmol)和2mL三氯甲烷。密封充氩气反应。反应在25℃下反应24h,反应结束后减压蒸去溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/5]纯化得到白色固体3aa 34.6mg,收率49%。
实施例9
向反应管中依次加入催化剂CuTc 1.9mg(0.01mmol),2mL二氯甲烷,再加入吲哚-2-碳酸酯衍生物1a 41mg(0.2mmol),重氮衍生物2a 56.2mg(0.32mmol)和2mL二氯甲烷。密封充氩气反应。反应在25℃下反应24h,反应结束后减压蒸去溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/5]纯化得到白色固体3aa 50.1mg,收率71%。
实施例10
向反应管中依次加入催化剂CuTc 1.9mg(0.01mmol),2mL二氯甲烷,再加入吲哚-2-碳酸酯衍生物1a 41mg(0.2mmol),重氮衍生物2a 63.4mg(0.36mmol)和2mL二氯甲烷。密封充氩气反应。反应在25℃下反应24h,反应结束后减压蒸去溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/5]纯化得到白色固体3aa 53mg,收率75%。
实施例11
向反应管中依次加入催化剂CuTc 1.9mg(0.01mmol),2mL二氯甲烷,再加入吲哚-2-碳酸酯衍生物1a 41mg(0.2mmol),重氮衍生物2a 63.4mg(0.36mmol)和2mL二氯甲烷。密封充氩气反应。反应在40℃下反应20h,反应结束后减压蒸去溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/5]纯化得到白色固体3aa 53mg,收率75%.
实施例12
向反应管中依次加入催化剂CuTc 1.9mg(0.01mmol),2mL二氯甲烷,再加入吲哚-2-碳酸酯衍生物1a 41mg(0.2mmol),重氮衍生物2a 63.4mg(0.36mmol)和2mL二氯甲烷。密封充氩气反应。反应在50℃下反应15h,反应结束后减压蒸去溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/5]纯化得到白色固体3aa 53.7mg,收率76%。
实施例13
向反应管中依次加入催化剂Rh2(esp)2 1.5mg(0.002mmol),2mL二氯甲烷,再加入吲哚-2-碳酸酯衍生物1a 41mg(0.2mmol),重氮衍生物2a 63.4mg(0.36mmol)和2mL二氯甲烷。密封充氩气反应。反应在60℃下反应10min,通过TLC跟踪,1a转化率为100%,3aa产率小于5%。
用Rh盐催化,生成C-H插入副产物,几乎得不到预期的重排产物。
实施例14
向反应管中依次加入催化剂CuTc 1.9mg(0.01mmol),2mL二氯甲烷,再加入吲哚-2-碳酸酯衍生物1a 41mg(0.2mmol),重氮衍生物2b 68.4mg(0.36mmol)和2mL二氯甲烷。密封充氩气反应。反应在60℃下反应6h,反应结束后减压蒸去溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/5]纯化得到红色油3ab 59mg,收率81%;1H NMR(400MHz,CDCl3)δ7.17-7.07(m,4H),6.99(s,1H),6.97(s,1H),6.85(t,J=7.6Hz,1H),6.60(d,J=7.6Hz,1H),4.65(s,1H),3.85(s,3H),3.80(s,3H),3.10(s,3H),2.23(s,3H).13C NMR(100MHz,CDCl3)δ174.8,170.5,168.8,144.4,137.7,130.7,128.6,128.4,128.4,126.5,125.2,122.1,107.8,65.6,53.3,53.1,51.3,26.2,21.0.HRMS(ESI)m/z:[M+H]+Calcd forC21H22NO5368.1492;Found 368.1495.
实施例15
向反应管中依次加入催化剂CuTc 1.9mg(0.01mmol),2mL二氯甲烷,再加入吲哚-2-碳酸酯衍生物1a 41mg(0.2mmol),重氮衍生物2c 83.5mg(0.36mmol)和2mL二氯甲烷。密封充氩气反应。反应在60℃下反应6h,反应结束后减压蒸去溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/5]纯化得到黄色固体3ac 59.5mg,收率74%,mp:145-147℃;1H NMR(300MHz,CDCl3)δ7.23-7.09(m,5H),7.04(d,J=7.6Hz,1H),6.84(t,J=7.6Hz,1H),6.60(d,J=7.6Hz,1H),4.63(s,1H),3.85(s,3H),3.78(s,3H),3.09(s,3H),1.23(s,9H).13C NMR(75MHz,CDCl3)δ174.9,170.4,168.8,150.8,144.5,130.6,128.3,126.3,125.2,124.6,122.1,107.7,65.6,53.3,53.0,51.2,34.4,31.2,26.1.HRMS(ESI)m/z:[M+H]+Calcd for C24H28NO5 410.1962;Found 410.1965.
实施例16
向反应管中依次加入催化剂CuTc 1.9mg(0.01mmol),2mL二氯甲烷,再加入吲哚-2-碳酸酯衍生物1a 41mg(0.2mmol),重氮衍生物2d 74.2mg(0.36mmol)和2mL二氯甲烷。密封充氩气反应。反应在60℃下反应6h,反应结束后减压蒸去溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/5]纯化得到红色固体3ad 53.4mg,收率69%,mp:147-149℃;
1H NMR(400MHz,CDCl3)δ7.18-7.10(m,4H),6.87(t,J=7.7Hz,1H),6.72-6.67(m,2H),6.60(d,J=7.7Hz,1H),4.64(s,1H),3.86(s,3H),3.82(s,3H),3.72(s,3H),3.09(s,3H).13C NMR(75MHz,CDCl3)δ174.8,170.5,168.9,159.0,144.4,130.0,128.4,126.5,125.7,125.3,122.2,113.0,107.8,65.3,55.2,53.4,53.1,51.5,26.2.HRMS(ESI)m/z:[M+H]+Calcd for C21H22NO6 384.1442;Found 384.1449.
实施例17
向反应管中依次加入催化剂CuTc 1.9mg(0.01mmol),2mL二氯甲烷,再加入吲哚-2-碳酸酯衍生物1a 41mg(0.2mmol),重氮衍生物2e 75.6mg(0.36mmol)和2mL二氯甲烷。密封充氩气反应。反应在60℃下反应6h,反应结束后减压蒸去溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/5]纯化得到白色固体3ae 58.7mg,收率74%,mp:141-143℃;
1H NMR(300MHz,CDCl3)δ7.29(d,J=7.7Hz,1H),7.17-7.04(m,5H),6.89(t,J=7.7Hz,1H),6.60(d,J=7.7Hz,1H),4.68(s,1H),3.87(s,3H),3.85(s,3H),3.07(s,3H).13CNMR(75MHz,CDCl3)δ174.4,170.0,168.4,144.3,133.9,132.0,130.2,128.7,127.7,126.5,124.8,122.4,108.0,65.4,53.6,53.3,51.3,26.2.HRMS(ESI)m/z:[M+H]+Calcd forC20H19ClNO5 388.0946;Found 388.0951.
实施例18
向反应管中依次加入催化剂CuTc 1.9mg(0.01mmol),2mL二氯甲烷,再加入吲哚-2-碳酸酯衍生物1a 41mg(0.2mmol),重氮衍生物2f 91.5mg(0.36mmol)和2mL二氯甲烷。密封充氩气反应。反应在60℃下反应6h,反应结束后减压蒸去溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/5]纯化得到白色固体3af 63mg,收率73%,mp:140-142℃;1H NMR(400MHz,CDCl3)δ7.30-7.24(m,3H),7.15(t,J=7.7Hz,1H),7.04(t,J=2.5Hz,1H),7.02(t,J=2.5Hz,1H),6.89(t,t,J=7.7Hz,1H),6.60(d,J=7.7Hz,1H),4.67(s,1H),3.86(s,3H),3.85(s,3H),3.07(s,3H).13C NMR(100MHz,CDCl3)δ174.4,169.9,168.3,144.3,132.6,130.7,130.5,128.7,126.5,124.7,122.4,122.2,108.0,65.4,53.6,53.3,51.2,26.2.HRMS(ESI)m/z:[M+H]+Calcd for C20H19BrNO5 432.0441;Found 432.0440.
实施例19
向反应管中依次加入催化剂CuTc 1.9mg(0.01mmol),2mL二氯甲烷,再加入吲哚-2-碳酸酯衍生物1a 41mg(0.2mmol),重氮衍生物2g 87.9mg(0.36mmol)和2mL二氯甲烷。密封充氩气反应。反应在60℃下反应6h,反应结束后减压蒸去溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/5]纯化得到白色固体3ag 50mg,收率59%,mp:146-148℃;1H NMR(300MHz,CDCl3)δ7.44-7.37(m,2H),7.32(d,J=7.6Hz,1H),7.29-7.26(m,2H),7.14(t,J=7.8Hz,1H),6.90(t,J=7.6Hz,1H),6.58(t,J=7.8Hz,1H),4.73(s,1H),3.88(s,6H),3.07(s,3H).13C NMR(75MHz,CDCl3)δ174.3,169.8,168.2,144.2,137.5,130.4(d,J=32.4Hz),129.4,128.8,126.5,123.9(d,J=270.4Hz),124.5,124.4(q,J=3.8Hz),122.5,108.0,65.8,53.7,53.4,51.2,25.2.19F NMR(282MHz,CDCl3)δ-120.76.HRMS(ESI)m/z:Calcd for C21H19F3NO5[M+H]+:422.1210;Found 422.1213.
实施例20
向反应管中依次加入催化剂CuTc 1.9mg(0.01mmol),2mL二氯甲烷,再加入吲哚-2-碳酸酯衍生物1a 41mg(0.2mmol),重氮衍生物2h 88.2mg(0.36mmol)和2mL二氯甲烷。密封充氩气反应。反应在60℃下反应6h,反应结束后减压蒸去溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/5]纯化得到黄色固体3ah 61.5mg,收率72%,mp:129-131℃;1H NMR(400MHz,CDCl3)δ7.35-7.29(m,2H),7.22-7.15(m,2H),6.96-6.90(m,2H),6.65-6.60(m,1H),4.67(s,1H),3.88(s,3H),3.87(s,3H),3.09(s,3H).13C NMR(75MHz,CDCl3)δ174.2,169.5,168.0,144.2,133.6,132.2,131.8,130.9,129.3,128.9,128.3,126.5,124.5,122.6,108.2,65.2,53.7,53.5,51.2,26.2.HRMS(ESI)m/z:Calcd for C20H18Cl2NO5[M+H]+:422.0557;Found 422.0557.
实施例21
向反应管中依次加入催化剂CuTc 1.9mg(0.01mmol),2mL二氯甲烷,再加入吲哚-2-碳酸酯衍生物1a 41mg(0.2mmol),重氮衍生物2i 68.4mg(0.36mmol)和2mL二氯甲烷。密封充氩气反应。反应在60℃下反应6h,反应结束后减压蒸去溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/5]纯化得到黄色固体3ai 56.5mg,收率78%,mp:131-133℃;1H NMR(400MHz,CDCl3)δ7.16-7.10(m,2H),7.08-7.02(m,2H),7.00-6.93(m,2H),6.85(t,J=7.7Hz,1H),6.60(d,J=7.7Hz,1H),4.65(s,1H),3.86(s,3H),3.81(s,3H),3.09(s,3H),2.23(s,3H).13C NMR(100MHz,CDCl3)δ174.8,170.4,168.7,144.4,137.3,133.5,129.4,128.7,128.4,127.5,126.5,125.8,125.2,122.1,107.7,65.9,53.4,53.1,51.3,26.1,21.6.HRMS(ESI)m/z:[M+H]+Calcd for C21H22NO5 368.1492;Found 368.1491.
实施例22
向反应管中依次加入催化剂CuTc 1.9mg(0.01mmol),2mL二氯甲烷,再加入吲哚-2-碳酸酯衍生物1a 41mg(0.2mmol),重氮衍生物2j 75.6mg(0.36mmol)和2mL二氯甲烷。密封充氩气反应。反应在60℃下反应6h,反应结束后减压蒸去溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/5]纯化得到橙色固体3aj 59.5mg,收率76%,mp:99-101℃;1H NMR(300MHz,CDCl3)δ7.22-7.17(m,1H),7.13(s,1H),7.10-7.02(m,2H),7.01-6.95(m,1H),6.93-6.87(m,1H),6.82(t,J=7.7Hz,1H),6.52(d,J=7.7Hz,1H),4.58(s,1H),3.79(s,6H),3.01(s,3H).13C NMR(75MHz,CDCl3)δ174.4,169.8,168.2,144.3,135.4,133.6,129.0,128.7,128.7,128.1,127.1,126.6,124.7,122.4,107.9,65.6,53.6,53.3,51.3,26.2.HRMS(ESI)m/z:Calcd for C20H19NO5[M+H]+:388.0946;Found 388.0947.
实施例23
向反应管中依次加入催化剂CuTc 1.9mg(0.01mmol),2mL二氯甲烷,再加入吲哚-2-碳酸酯衍生物1a 41mg(0.2mmol),重氮衍生物2k 75.6mg(0.36mmol)和2mL二氯甲烷。密封充氩气反应。反应在60℃下反应6h,反应结束后减压蒸去溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/5]纯化得到黄色油3ak 38.9mg,收率50%;1H NMR(400MHz,CDCl3)δ7.56-7.45(m,1H),7.28-7.15(m,5H),6.89(t,J=7.7Hz,1H),6.64(d,J=7.7Hz,1H),4.90(s,1H),3.72(s,3H),3.45(s,3H),3.03(s,3H).13C NMR(75MHz,CDCl3)δ173.7,169.6,168.7,144.5,134.4,133.3,130.6,129.4,128.6,126.9,126.6,125.7,122.2,107.6,66.6,53.6,53.0,48.5,26.3.HRMS(ESI)m/z:Calcd for C20H19ClNO5[M+H]+:388.0946;Found 388.09.
实施例24
向反应管中依次加入催化剂CuTc 1.9mg(0.01mmol),2mL二氯甲烷,再加入吲哚-2-碳酸酯衍生物1a 41mg(0.2mmol),重氮衍生物2l 81.4mg(0.36mmol)和2mL二氯甲烷。密封充氩气反应。反应在60℃下反应6h,反应结束后减压蒸去溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/5]纯化得到白色固体3al 74.5mg,收率92%,mp:154-156℃;1H NMR(400MHz,CDCl3)δ7.69-7.60(m,3H),7.58-7.52(m,1H),7.37-7.30(m,2H),7.21-7.16(m,1H),7.13(d,J=7.5Hz,1H),7.01-6.95(m,1H),6.73(t,J=7.5Hz,1H),6.45-6.43(m,1H),4.69(s,1H),3.80(s,3H),3.74(s,3H),2.99(s,3H).13C NMR(100MHz,CDCl3)δ174.8,170.3,168.8,144.4,132.6,132.6,131.2,128.5,128.4,128.2,127.4,127.1,126.5,126.5,126.4,126.2,125.1,122.2,107.9,66.0,53.5,53.2,51.2,26.2.HRMS(ESI)m/z:Calcd for C24H22NO5[M+H]+:404.1492;Found 404.1496.
实施例25
向反应管中依次加入催化剂CuTc 1.9mg(0.01mmol),2mL二氯甲烷,再加入吲哚-2-碳酸酯衍生物1a 41mg(0.2mmol),重氮衍生物2m 80mg(0.80mmol)和2mL二氯甲烷。密封充氩气反应。反应在60℃下反应6h,反应结束后减压蒸去溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/5]纯化得到棕色油3ad 38.1mg,收率66%;1H NMR(400MHz,CDCl3)δ7.35-7.27(m,2H),7.03(t,J=7.6Hz,1H),6.84(d,J=7.6Hz,1H),4.20(d,J=4.3Hz,1H),4.04(d,J=4.3Hz,1H),3.80(s,3H),3.59(s,3H),3.24(s,3H).13C NMR(100MHz,CDCl3)δ175.2,168.4,167.5,144.7,128.8,125.5,124.6,122.7,108.2,53.0,52.8,52.2,44.7,26.5.HRMS(ESI)m/z:Calcd for C14H16NO5[M+H]+:278.1023;Found 278.1022.
实施例26
在氩气保护下向25mL的烧瓶中加入2.4mL、1.0mol/L的KHMDS的四氢呋喃溶液并置于-78℃环境中,边搅拌边加入溶于5mL四氢呋喃溶液的466mg 1-苄基-2-吲哚啉酮。加料完毕后搅拌30min。随后将该混合溶液用转移到另一个置于-78℃环境中在氩气保护下,装有227mg氯甲酸甲酯与5mL四氢呋喃溶液的25mL圆底烧瓶中。转移完毕后,将烧瓶转移到室温反应5min,加入1M稀盐酸5mL淬灭反应。随后用5mL乙酸乙酯萃取3次,减压蒸去有机相溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/20]纯化,得到淡黄色油1b140mg,收率25%。1H NMR(400MHz,CDCl3)δ7.60-7.54(m,1H),7.28-7.26(m,1H),7.25-7.20(m,2H),7.20-7.16(m,1H),7.15-7.08(m,4H),6.38(s,1H),5.22(s,2H),3.85(s,3H).13C NMR(100MHz,CDCl3)δ152.2,142.8,137.0,132.1,128.8,127.6,126.7,126.2,121.7,120.8,120.5,109.6,87.8,56.0,45.8.HRMS(ESI)m/z:[M+H]+Calcd for C17H16NO3 282.1125;Found 282.1124.
向反应管中依次加入催化剂CuTc 1.9mg(0.01mmol),2mL二氯甲烷,再加入吲哚-2-碳酸酯衍生物1b 56.2mg(0.2mmol),重氮衍生物2a 63.4mg(0.36mmol)和2mL二氯甲烷。密封充氩气反应。反应在60℃下反应6h,反应结束后减压蒸去溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/5]纯化得到橙色油3ba 60mg,收率68%;1H NMR(400MHz,CDCl3)δ7.26-7.19(m,6H),7.17-7.10(m,5H),7.04-6.98(m,1H),6.87-6.80(m,1H),6.53-6.47(m,1H),4.86(d,J=15.7Hz,1H),4.81(s,1H),4.74(d,J=15.7Hz,1H),3.87(s,3H),3.84(s,3H).13C NMR(100MHz,CDCl3)δ174.7,170.4,168.7,143.6,135.6,133.6,128.9,128.7,128.3,127.9,127.8,127.6,127.5,126.6,125.1,122.2,108.8,65.8,53.5,53.2,51.5,43.9.HRMS(ESI)m/z:[M+H]+Calcd for C26H24NO5 430.1649;Found 430.1650.
实施例27
在氩气保护下向25mL的烧瓶中加入2.4mL、1.0mol/L的KHMDS的四氢呋喃溶液并置于-78℃环境中,边搅拌边加入溶于5mL四氢呋喃溶液的350mg 1-异丙基基-2-吲哚啉酮。加料完毕后搅拌30min。随后将该混合溶液用转移到另一个置于-78℃环境中在氩气保护下,装有227mg氯甲酸甲酯与5mL四氢呋喃溶液的25mL圆底烧瓶中。转移完毕后,将烧瓶转移到室温反应5min,加入1M稀盐酸5mL淬灭反应。随后用5mL乙酸乙酯萃取3次,减压蒸去有机相溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/30]纯化,得到黄色油1c149mg,收率32%。1H NMR(400MHz,CDCl3)δ7.54(d,J=7.6Hz,1H),7.37(d,J=8.0Hz,1H),7.15(dd,J1=7.1Hz,J2=8.0Hz,1H),7.09(dd,J1=7.6Hz,J2=7.1Hz,1H)6.28(s,1H),4.69-4.58(m,1H),3.91(s,3H),1.58-1.51(m,6H).13C NMR(100MHz,CDCl3)δ152.5,142.6,130.9,126.4,121.0,120.8,119.8,110.4,88.0,56.0,46.5,21.5.HRMS(ESI)m/z:[M+H]+Calcd for C13H16NO3 234.1125;Found234.1123.
向反应管中依次加入催化剂CuTc 1.9mg(0.01mmol),2mL二氯甲烷,再加入吲哚-2-碳酸酯衍生物1c 46.6mg(0.2mmol),重氮衍生物2a 63.4mg(0.36mmol)和2mL二氯甲烷。密封充氩气反应。反应在60℃下反应6h,反应结束后减压蒸去溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/5]纯化得到橙色固体3ca 56.4mg,收率75%,mp:165-167℃;1H NMR(300MHz,CDCl3)δ7.30-7.25(m,1H),7.19-7.12(m,5H),7.11-7.05(m,1H),6.89-6.80(m,1H),6.76-6.70(m,1H),4.67(s,1H),4.55(m,1H),3.87(s,3H),3.86(s,3H),1.38(d,J=7.0Hz,3H),1.32(d,J=7.0Hz,3H).13C NMR(75MHz,CDCl3)δ174.3,170.5,168.7,143.0,133.5,129.0,128.1,127.9,127.6,126.9,125.6,121.6,109.4,65.9,53.4,53.1,51.2,43.7,19.2,18.8.HRMS(ESI)m/z:[M+H]+Calcd for C22H24NO5382.1649;Found382.1650.
实施例28
在氩气保护下向25mL的烧瓶中加入2.4mL、1.0mol/L的KHMDS的四氢呋喃溶液并置于-78℃环境中,边搅拌边加入溶于5mL四氢呋喃溶液的350mg 4-溴-1-甲基-2-吲哚啉酮。加料完毕后搅拌30min。随后将该混合溶液用转移到另一个置于-78℃环境中在氩气保护下,装有227mg氯甲酸甲酯与5mL四氢呋喃溶液的25mL圆底烧瓶中。转移完毕后,将烧瓶转移到室温反应5min,加入1M稀盐酸5mL淬灭反应。随后用5mL乙酸乙酯萃取3次,减压蒸去有机相溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/30]纯化,得到白色固体1d 192mg,收率34%,mp:105-107℃;1H NMR(400MHz,CDCl3)δ7.28-7.26(m,1H),7.15-7.13(m,1H),7.07-6.98(m,1H),6.36(s,1H),3.95(s,3H),3.56(s,3H).13C NMR(100MHz,CDCl3)δ152.1,143.1,132.8,126.7,123.2,122.2,114.5,108.2,87.9,56.2,28.7.HRMS(ESI)m/z:[M+H]+Calcd for C11H11BrNO3 283.9917;Found283.9908.
向反应管中依次加入催化剂CuTc 1.9mg(0.01mmol),2mL二氯甲烷,再加入吲哚-2-碳酸酯衍生物1d 56.6mg(0.2mmol),重氮衍生物2a 63.4mg(0.36mmol)和2mL二氯甲烷。密封充氩气反应。反应在60℃下反应6h,反应结束后减压蒸去溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/5]纯化得到黄色固体3da 73mg,收率85%,mp:111-113℃;1H NMR(400MHz,CDCl3)δ7.28-7.25(m,1H),7.25-7.23(m,1H),7.20-7.13(m,3H),7.06-7.01(m,2H),6.61-6.53(m,1H),4.83(s,1H),3.90(s,3H),3.82(s,3H),2.97(s,3H).13C NMR(100MHz,CDCl3)δ173.7,169.1,168.8,147.0,133.8,130.1,129.3,128.0,127.5,126.9,125.2,120.7,106.7,66.4,53.6,53.2,52.8,26.3.HRMS(ESI)m/z:[M+H]+Calcd forC20H19BrNO5 432.0441;Found 432.0439.
实施例29
在氩气保护下向25mL的烧瓶中加入2.4mL、1.0mol/L的KHMDS的四氢呋喃溶液并置于-78℃环境中,边搅拌边加入溶于5mL四氢呋喃溶液的322mg 1,5-二-甲基-2-吲哚啉酮。加料完毕后搅拌30min。随后将该混合溶液用转移到另一个置于-78℃环境中在氩气保护下,装有227mg氯甲酸甲酯与5mL四氢呋喃溶液的25mL圆底烧瓶中。转移完毕后,将烧瓶转移到室温反应5min,加入1M稀盐酸5mL淬灭反应。随后用5mL乙酸乙酯萃取3次,减压蒸去有机相溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/30]纯化,得到白色固体1e 127mg,收率29%,mp:81-83℃;1H NMR(400MHz,CDCl3)δ7.33(s,1H),7.12(d,J=8.3Hz,1H),7.01(d,J=8.3Hz,1H),6.20(s,1H),3.93(s,3H),3.56(s,3H),2.42(s,3H).13C NMR(100MHz,CDCl3)δ152.5,142.9,130.9,129.4,126.1,122.9,120.5,108.7,86.8,56.0,28.3,21.6.HRMS(ESI)m/z:[M+H]+Calcd for C12H14NO3 220.0968;Found 220.0968.
向反应管中依次加入催化剂CuTc 1.9mg(0.01mmol),2mL二氯甲烷,再加入吲哚-2-碳酸酯衍生物1e 43.8mg(0.2mmol),重氮衍生物2a 63.4mg(0.36mmol)和2mL二氯甲烷。密封充氩气反应。反应在60℃下反应6h,反应结束后减压蒸去溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/5]纯化得到黄色固体3ea 60.5mg,收率83%,mp:117-119℃;1H NMR(300MHz,CDCl3)δ7.21-7.14(s,5H),6.96(s,1H),6.92(d,J=9.0Hz,1H),6.47(d,J=9.0Hz,1H),4.63(s,1H),3.87(s,3H),3.83(s,3H),3.06(s,3H),2.20(s,3H).13C NMR(75MHz,CDCl3)δ174.7,170.4,168.7,142.0,133.7,131.6,128.8,128.6,127.9,127.6,127.3,125.1,107.4,65.9,53.4,53.1,51.4,26.2,21.3.HRMS(ESI)m/z:[M+H]+Calcd forC21H22NO5 368.1492;Found 368.1495.
实施例30
在氩气保护下向25mL的烧瓶中加入2.4mL、1.0mol/L的KHMDS的四氢呋喃溶液并置于-78℃环境中,边搅拌边加入溶于5mL四氢呋喃溶液的354mg 5-甲氧基-1-甲基-2-吲哚啉酮。加料完毕后搅拌30min。随后将该混合溶液用转移到另一个置于-78℃环境中在氩气保护下,装有227mg氯甲酸甲酯与5mL四氢呋喃溶液的25mL圆底烧瓶中。转移完毕后,将烧瓶转移到室温反应5min,加入1M稀盐酸5mL淬灭反应。随后用5mL乙酸乙酯萃取3次,减压蒸去有机相溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/30]纯化,得到白色固体1f 178mg,收率38%,mp:83-85℃;1H NMR(400MHz,CDCl3)δ7.11(d,J=8.8Hz,1H),7.03(s,1H),6.85(d,J=8.8Hz,1H),6.22(s,1H),3.93(s,3H),3.82(s,3H),3.55(s,3H).13C NMR(100MHz,CDCl3)δ154.5,152.5,143.1,127.7,126.3,111.2,109.8,103.0,87.2,56.0,55.9,28.4.HRMS(ESI)m/z:[M+H]+Calcd for C12H14NO4 236.0917;Found 236.0917.
向反应管中依次加入催化剂CuTc 1.9mg(0.01mmol),2mL二氯甲烷,再加入吲哚-2-碳酸酯衍生物1f 47mg(0.2mmol),重氮衍生物2a 63.4mg(0.36mmol)和2mL二氯甲烷。密封充氩气反应。反应在60℃下反应6h,反应结束后减压蒸去溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/5]纯化得到红色油3fa 55.4mg,收率72%;1H NMR(400MHz,CDCl3)δ7.22-7.14(s,5H),6.79(s,1H),6.65(d,J=8.4Hz,1H),6.47(d,J=8.4Hz,1H),4.63(s,1H),3.87(s,3H),3.85(s,3H),3.66(s,3H),3.05(s,3H).13C NMR(100MHz,CDCl3)δ174.3,170.4,168.7,155.4,138.1,133.6,128.8,127.9,127.7,126.4,114.2,112.7,107.9,65.9,55.8,53.5,53.1,51.9,26.2.HRMS(ESI)m/z:[M+H]+Calcd forC21H22NO6 384.1442;Found384.1441.
实施例31
在氩气保护下向25mL的烧瓶中加入2.4mL、1.0mol/L的KHMDS的四氢呋喃溶液并置于-78℃环境中,边搅拌边加入溶于5mL四氢呋喃溶液的370mg 5-氟-1-甲基-2-吲哚啉酮。加料完毕后搅拌30min。随后将该混合溶液用转移到另一个置于-78℃环境中在氩气保护下,装有227mg氯甲酸甲酯与5mL四氢呋喃溶液的25mL圆底烧瓶中。转移完毕后,将烧瓶转移到室温反应5min,加入1M稀盐酸5mL淬灭反应。随后用5mL乙酸乙酯萃取3次,减压蒸去有机相溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/30]纯化,得到白色固体1g 107mg,收率24%,mp:71-73℃;1H NMR(400MHz,CDCl3)δ7.13(dd,J1=9.3Hz,J2=2.4Hz,1H),7.07-7.04(m,1H),6.85(td,J1=9.3Hz,J2=2.4Hz,1H),6.19(s,1H),3.88(s,3H),3.50(s,3H).13C NMR(100MHz,CDCl3)δ158.3(d,J=232.7Hz),152.3,129.1,126.3(d,J=10.6Hz),109.7,109.6(d,J=34.7Hz),105.8(d,J=23.9Hz),87.6(d,J=4.5Hz),56.2,28.5.19F NMR(377MHz,CDCl3)δ-123.96.HRMS(ESI)m/z:[M+H]+Calcd for C11H11FO3224.0717;Found 224.0713.
向反应管中依次加入催化剂CuTc 1.9mg(0.01mmol),2mL二氯甲烷,再加入吲哚-2-碳酸酯衍生物1g 44.6mg(0.2mmol),重氮衍生物2a 63.4mg(0.36mmol)和2mL二氯甲烷。密封充氩气反应。反应在60℃下反应6h,反应结束后减压蒸去溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/5]纯化得到淡黄色固体3ga 59.7mg,收率80%,mp:142-144℃;1H NMR(400MHz,CDCl3)δ7.18-7.11(m,5H),7.06-6.99(m,1H),6.85-6.77(m,1H),6.50-6.44(m,1H),4.65(s,1H),3.88(s,6H),3.06(s,3H).13C NMR(100MHz,CDCl3)δ174.4,170.4,168.5,158.8(d,J=237.5Hz),140.4(d,J=1.7Hz),133.2,128.6,128.1,127.8,126.7(d,J=9.0Hz),115.0(d,J=26.0Hz),114.6(d,J=23.5Hz),108.0(d,J=8.3Hz),65.8,53.6,53.3,52.0,26.3.19F NMR(282MHz,CDCl3)δ-62.8.HRMS(ESI)m/z:[M+H]+Calcdfor C20H19FNO5 372.1242;Found 372.1242.
实施例32
在氩气保护下向25mL的烧瓶中加入2.4mL、1.0mol/L的KHMDS的四氢呋喃溶液并置于-78℃环境中,边搅拌边加入溶于5mL四氢呋喃溶液的350mg 5-溴-1-甲基-2-吲哚啉酮。加料完毕后搅拌30min。随后将该混合溶液用转移到另一个置于-78℃环境中在氩气保护下,装有227mg氯甲酸甲酯与5mL四氢呋喃溶液的25mL圆底烧瓶中。转移完毕后,将烧瓶转移到室温反应5min,加入1M稀盐酸5mL淬灭反应。随后用5mL乙酸乙酯萃取3次,减压蒸去有机相溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/30]纯化,得到白色固体1h 147mg,收率26%,mp:85-87℃;1H NMR(400MHz,CDCl3)δ7.66(s,1H),7.26(d,J=8.6Hz,1H),7.07(d,J=8.6Hz,1H),6.25(s,1H),3.95(s,3H),3.56(s,3H).13C NMR(100MHz,CDCl3)δ152.2,143.5,131.2,127.6,124.2,123.1,113.4,110.6,86.9,56.2,28.5.HRMS(ESI)m/z:[M+H]+Calcd for C11H11BrNO3 283.9917;Found 283.9914.
向反应管中依次加入催化剂CuTc 1.9mg(0.01mmol),2mL二氯甲烷,再加入吲哚-2-碳酸酯衍生物1h 56.6mg(0.2mmol),重氮衍生物2a 63.4mg(0.36mmol)和2mL二氯甲烷。密封充氩气反应。反应在60℃下反应6h,反应结束后减压蒸去溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/5]纯化得到淡黄色固体3ha 71mg,收率83%,mp:153-155℃;1H NMR(300MHz,CDCl3)δ7.34-7.27(m,1H),7.26-7.21(m,1H),7.20-7.10(m,5H),6.45-6.42(m,1H),4.63(s,1H),3.89(s,3H),3.87(s,3H),3.05(s,3H).13C NMR(75MHz,CDCl3)δ174.1,170.2,168.4,143.4,133.1,131.2,129.8,128.6,128.1,127.8,127.1,114.9,109.0,65.8,53.6,53.2,51.7,26.2.HRMS(ESI)m/z:[M+H]+Calcd forC20H19BrNO5432.0441;Found 432.0443.
实施例33
在氩气保护下向25mL的烧瓶中加入2.4mL、1.0mol/L的KHMDS的四氢呋喃溶液并置于-78℃环境中,边搅拌边加入溶于5mL四氢呋喃溶液的350mg 6-溴-1-甲基-2-吲哚啉酮。加料完毕后搅拌30min。随后将该混合溶液用转移到另一个置于-78℃环境中在氩气保护下,装有227mg氯甲酸甲酯与5mL四氢呋喃溶液的25mL圆底烧瓶中。转移完毕后,将烧瓶转移到室温反应5min,加入1M稀盐酸5mL淬灭反应。随后用5mL乙酸乙酯萃取3次,减压蒸去有机相溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/30]纯化,得到白色固体1h 170mg,收率30%,mp:99-101℃;1H NMR(400MHz,CDCl3)δ7.44-7.35(m,2H),7.24-7.17(m,1H),6.28(s,1H),3.96(s,3H),3.56(s,3H).13C NMR(100MHz,CDCl3)δ152.2,143.1,133.4,124.8,123.5,122.0,114.7,112.1,87.5,56.2,28.5.HRMS(ESI)m/z:Calcd forC11H11BrNO3[M+H]+:283.9917;Found 283.9914.
向反应管中依次加入催化剂CuTc 1.9mg(0.01mmol),2mL二氯甲烷,再加入吲哚-2-碳酸酯衍生物1i 55.6mg(0.2mmol),重氮衍生物2a 63.4mg(0.36mmol)和2mL二氯甲烷。密封充氩气反应。反应在60℃下反应6h,反应结束后减压蒸去溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/5]纯化得到红色固体3ia 63.6mg,收率74%,mp:174-176℃;1H NMR(400MHz,CDCl3)δ7.23-7.08(m,5H),7.04-6.92(m,2H),6.72(s,1H),4.59(s,1H),3.87(s,3H),3.85(s,3H),3.06(s,3H).13C NMR(100MHz,CDCl3)δ174.6,170.3,168.5,145.7,133.3,128.6,128.2,128.0,127.9,125.0,124.1,122.1,111.3,65.8,53.6,53.2,51.4,26.3.HRMS(ESI)m/z:[M+H]+Calcd for C20H19BrNO5 432.0441;Found 432.0442.
实施例34
在氩气保护下向25mL的烧瓶中加入2.4mL、1.0mol/L的KHMDS的四氢呋喃溶液并置于-78℃环境中,边搅拌边加入溶于5mL四氢呋喃溶液的354mg 6-甲氧基-1-甲基-2-吲哚啉酮。加料完毕后搅拌30min。随后将该混合溶液用转移到另一个置于-78℃环境中在氩气保护下,装有227mg氯甲酸甲酯与5mL四氢呋喃溶液的25mL圆底烧瓶中。转移完毕后,将烧瓶转移到室温反应5min,加入1M稀盐酸5mL淬灭反应。随后用5mL乙酸乙酯萃取3次,减压蒸去有机相溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/30]纯化,得到黄色油1j 80mg,收率17%;1H NMR(300MHz,CDCl3)δ7.42(d,J=8.6Hz,1H),6.78(d,J=8.6Hz,1H),6.73(s,1H),6.20(s,1H),3.95(s,3H),3.86(s,3H),3.56(s,3H).13C NMR(100MHz,CDCl3)δ156.1,152.7,141.9,133.4,121.5,119.9,109.6,93.3,87.1,56.1,55.9,28.4.HRMS(ESI)m/z:[M+H]+Calcd for C12H14NO4236.0917;Found 236.0916.
向反应管中依次加入催化剂CuTc 1.9mg(0.01mmol),2mL二氯甲烷,再加入吲哚-2-碳酸酯衍生物1j 47mg(0.2mmol),重氮衍生物2a 63.4mg(0.36mmol)和2mL二氯甲烷。密封充氩气反应。反应在60℃下反应6h,反应结束后减压蒸去溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/5]纯化得到红色固体3ja 51.3mg,收率67%,mp:163-165℃;1H NMR(400MHz,CDCl3)δ7.21-7.15(m,5H),7.06(d,J=8.4Hz,1H),6.35(d,J=8.4Hz,1H),6.17(s,1H),4.61(s,1H),3.85(s,3H),3.82(s,3H),3.72(s,3H),3.05(s,3H).13C NMR(100MHz,CDCl3)δ175.4,170.4,168.8,160.3,145.7,133.7,128.7,127.9,127.7,127.3,116.9,105.9,95.7,66.0,55.4,53.4,53.1,50.9,26.2.HRMS(ESI)m/z:[M+H]+Calcd forC21H22BrNO6 384.1442;Found 384.1441.
实施例35
在氩气保护下向25mL的烧瓶中加入2.4mL、1.0mol/L的KHMDS的四氢呋喃溶液并置于-78℃环境中,边搅拌边加入溶于5mL四氢呋喃溶液的322mg 7-甲基-1-甲基-2-吲哚啉酮。加料完毕后搅拌30min。随后将该混合溶液用转移到另一个置于-78℃环境中在氩气保护下,装有227mg氯甲酸甲酯与5mL四氢呋喃溶液的25mL圆底烧瓶中。转移完毕后,将烧瓶转移到室温反应5min,加入1M稀盐酸5mL淬灭反应。随后用5mL乙酸乙酯萃取3次,减压蒸去有机相溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/30]纯化,得到白色固体1k 118mg,收率27%,mp:75-77℃;1H NMR(400MHz,CDCl3)δ7.29(d,J=7.7Hz,1H),6.93-6.84(m,1H),6.80(d,J=7.7Hz,1H),6.17(s,1H),3.86(s,3H),3.74(s,3H),2.63(s,3H).13CNMR(75MHz,CDCl3)δ152.6,142.7,131.5,126.6,124.4,120.9,120.2,118.8,87.8,56.0,31.1,19.8.HRMS(ESI)m/z:[M+H]+Calcd for C12H14NO3 220.0968;Found 220.0969.
向反应管中依次加入催化剂CuTc 1.9mg(0.01mmol),2mL二氯甲烷,再加入吲哚-2-碳酸酯衍生物1k 43.8mg(0.2mmol),重氮衍生物2a 63.4mg(0.36mmol)和2mL二氯甲烷。密封充氩气反应。反应在60℃下反应6h,反应结束后减压蒸去溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/5]纯化得到橙色固体3ka 58.6mg,收率79%,mp:142-144℃;1H NMR(400MHz,CDCl3)δ7.20-7.15(m,5H),6.98(d,J=7.5Hz,1H),6.84(d,J=7.5Hz,1H),6.72(t,J=7.5Hz,1H),4.62(s,1H),3.86(s,3H),3.83(s,3H),3.37(s,3H),2.38(s,3H).13C NMR(100MHz,CDCl3)δ175.5,170.4,168.7,142.2,133.6,132.2,128.8,127.9,127.6,125.6,124.3,122.0,119.2,66.2,53.4,53.1,50.9,29.7,19.1.HRMS(ESI)m/z:[M+H]+Calcd for C21H22NO5 368.1492;Found 368.1492.
实施例36
在氩气保护下向25mL的烧瓶中加入2.4mL、1.0mol/L的KHMDS的四氢呋喃溶液并置于-78℃环境中,边搅拌边加入溶于5mL四氢呋喃溶液的350mg 7-溴-1-甲基-2-吲哚啉酮。加料完毕后搅拌30min。随后将该混合溶液用转移到另一个置于-78℃环境中在氩气保护下,装有227mg氯甲酸甲酯与5mL四氢呋喃溶液的25mL圆底烧瓶中。转移完毕后,将烧瓶转移到室温反应5min,加入1M稀盐酸5mL淬灭反应。随后用5mL乙酸乙酯萃取3次,减压蒸去有机相溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/30]纯化,得到白色固体1l 232mg,收率41%,mp:72-74℃;1H NMR(400MHz,CDCl3)δ7.45(d,J=7.7Hz,1H),7.30(d,J=7.7Hz,1H),6.92(t,J=7.7Hz,1H),6.29(s,1H),3.96(s,6H).13C NMR(100MHz,CDCl3)δ152.3,143.5,129.4,129.0,126.7,121.2,120.1,103.6,88.2,56.2,31.1.HRMS(ESI)m/z:[M+H]+Calcd for C11H11BrNO3 283.9917;Found283.9914.
向反应管中依次加入催化剂CuTc 1.9mg(0.01mmol),2mL二氯甲烷,再加入吲哚-2-碳酸酯衍生物1l 56.6mg(0.2mmol),重氮衍生物2a 63.4mg(0.36mmol)和2mL二氯甲烷。密封充氩气反应。反应在60℃下反应6h,反应结束后减压蒸去溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/5]纯化得到橙色固体3la 63mg,收率73%,mp:124-126℃;1H NMR(400MHz,CDCl3)δ7.16-7.10(m,4H),7.09-7.05(m,2H),6.99(d,J=7.7Hz,1H),6.60(t,J=7.7Hz,1H),4.57(s,1H),3.79(s,3H),3.78(s,3H),3.40(s,3H).13C NMR(100MHz,CDCl3)δ175.2,170.2,168.5,141.7,134.1,133.2,128.7,128.2,127.8,125.5,123.2,102.0,66.2,53.5,53.2,51.2,30.1.HRMS(ESI)m/z:[M+H]+Calcd for C20H19BrNO5432.0441;Found 432.0442.
实施例37
向25mL圆底烧瓶中依次加入294mg 1-甲基-2-吲哚啉酮、242mg三乙胺、10mL四氢呋喃溶液。随后将260mg氯甲酸乙酯加入烧瓶中,在室温下搅拌30min。30min之后,用5mL水淬灭反应,用5mL乙酸乙酯萃取3次。收集起来的有机相用无水硫酸钠干燥并减压蒸去溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/30]纯化,得到淡黄色油1m175mg,收率40%。1H NMR(400MHz,CDCl3)δ7.48(d,J=7.8Hz,1H),7.20-7.10(m,2H),7.04(t,J=7.8Hz,1H),6.22(s,1H),4.30(q,J=7.1Hz,2H),3.54(s,3H),1.34(t,J=7.1Hz,3H).13C NMR(75MHz,CDCl3)δ151.8,142.9,132.6,126.0,121.3,120.7,120.2,109.0,87.3,65.7,28.3,14.2.HRMS(ESI)m/z:[M+H]+Calcd for C12H14NO3 220.0968;Found 220.0968.
向反应管中依次加入催化剂CuTc 1.9mg(0.01mmol),2mL二氯甲烷,再加入吲哚-2-碳酸酯衍生物1m 43.8mg(0.2mmol),重氮衍生物2n 68.4mg(0.36mmol)和2mL二氯甲烷。密封充氩气反应。反应在60℃下反应6h,反应结束后减压蒸去溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/5]纯化得到黄色固体3mn 58.4mg,收率76%,mp:125-127℃;1H NMR(400MHz,CDCl3)δ7.25-7.19(m,3H),7.17-7.09(m,4H),6.90-6.81(m,1H),6.62-6.52(m,1H),4.69(s,1H),4.42-4.27(m,4H),3.08(s,3H),1.29-1.23(m,6H).13C NMR(100MHz,CDCl3)δ174.8,169.9,168.1,144.4,133.8,128.8,128.4,127.8,127.6,126.6,125.4,122.2,107.7,65.9,62.5,62.1,51.2,26.1,14.0.HRMS(ESI)m/z:[M+H]+Calcd forC22H24NO5 382.1649;Found 382.1649.
实施例38
向25mL圆底烧瓶中依次加入294mg 1-甲基-2-吲哚啉酮、242mg三乙胺、10mL四氢呋喃溶液。随后将294mg氯甲酸异丙酯酯加入烧瓶中,在室温下搅拌30min。30min之后,用5mL水淬灭反应,用5mL乙酸乙酯萃取3次。收集起来的有机相用无水硫酸钠干燥并减压蒸去溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/30]纯化,得到白色固体1n284mg,收率61%,mp:72-74℃;1H NMR(400MHz,CDCl3)δ7.55(d,J=7.8Hz,1H),7.24(d,J=7.9Hz,1H),7.19(dd,J1=7.9Hz,J2=1.0Hz,1H),7.11(dd,J1=7.8Hz,J2=1.0Hz,1H)6.29(s,1H),5.10-4.93(m,1H),3.61(s,3H),1.41-1.40(m,6H).13C NMR(75MHz,CDCl3)δ151.3,143.0,132.6,126.0,121.3,120.7,120.2,109.0,87.3,74.2,28.3,21.7.HRMS(ESI)m/z:[M+Na]+Calcd for C13H15NO3Na 256.0944;Found 256.0937.
向反应管中依次加入催化剂CuTc 1.9mg(0.01mmol),2mL二氯甲烷,再加入吲哚-2-碳酸酯衍生物1n 46.6mg(0.2mmol),重氮衍生物2o 74.5mg(0.36mmol)和2mL二氯甲烷。密封充氩气反应。反应在60℃下反应6h,反应结束后减压蒸去溶剂,产物经硅胶柱层析[洗脱剂:V(乙酸乙酯)/V(石油醚)=1/5]纯化得到淡黄色油3no 43mg,收率53%;1H NMR(300MHz,CDCl3)δ7.33-7.27(m,1H),7.24-7.18(m,2H),7.17-7.08(m,4H),6.90-6.82(m,1H),6.59-6.52(m,1H),5.29-5.20(m,1H),5.20-5.12(m,1H),4.68(s,1H),3.07(s,3H),1.28-1.25(m,6H),1.25-1.21(m,6H).13C NMR(100MHz,CDCl3)δ174.8,169.3,167.5,144.4,134.1,128.9,128.3,127.6,127.4,126.7,125.5,122.1,107.6,70.2,69.9,65.8,51.0,26.1,21.6,21.5,21.5.
CDCl3 HRMS(ESI)m/z:[M+H]+Calcd for C24H28NO5 410.1962;Found 410.1964.
Claims (7)
1.如式3所示化合物的合成方法,其特征在于:反应首先加入铜催化剂与式1所示的吲哚-2-碳酸酯衍生物,再加入溶剂,并在氩气保护下将溶于溶剂中的式2所示的重氮乙酸酯化合物加入,在一定温度搅拌反应一定时间,待反应结束后减压蒸去溶剂,以硅胶吸附,通过柱层析分离得到式3所示化合物目标产物;
其中,R为甲基、乙基、异丙基;R1为甲基、苄基、异丙基;R2为4-溴、5-甲基、5-甲氧基、5-溴、5-氟、6-溴、6-甲氧基、7-溴、7-甲基;Ar为苯基、4-甲基苯基、4-叔丁基苯基、4-甲氧基苯基、4-氯苯基、4-溴苯基、4-三氟甲基苯基、3,4-二氯苯基、3-甲基苯基、3-氯苯基、2-氯苯基、萘-2-基、氢;
其中铜催化剂为CuTc、Cu(OTf)2、CuOTf·tol1/2、Cu(MeCN)4PF6;
溶剂为甲苯、1,2-二氯乙烷、乙腈、甲基叔丁基醚、三氯甲烷、二氯甲烷中的一种;合成反应温度为25~70℃;重氮化合物的用量为吲哚-2-碳酸酯衍生物用量的1~2当量。
2.如权利要求1所述式3所示化合物的合成方法,其特征在于:所述的吲哚-2-碳酸酯衍生物选自以下结构式:
3.如权利要求1所述式3所示化合物的合成方法,其特征在于:所述的重氮化合物选自以下结构式:
4.如权利要求1所述式3所示化合物的合成方法,其特征在于:吲哚-2-碳酸酯衍生物:重氮化合物摩尔比为=1:1.2~1:2.0。
5.如权利要求1所述式3所示化合物的合成方法,其特征在于:铜催化剂用量为吲哚-2-碳酸酯衍生物摩尔数的1~10%。
6.如权利要求1所述式3所示化合物的合成方法,其特征在于:吲哚-2-碳酸酯衍生物在溶剂中的浓度为0.01~0.1mol/L。
7.如权利要求1所述式3所示化合物的合成方法,其特征在于:搅拌反应0.2~12小时。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202211410491.8A CN115636778B (zh) | 2022-11-11 | 2022-11-11 | 一种3-季碳取代吲哚啉-2-酮化合物的合成方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202211410491.8A CN115636778B (zh) | 2022-11-11 | 2022-11-11 | 一种3-季碳取代吲哚啉-2-酮化合物的合成方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN115636778A CN115636778A (zh) | 2023-01-24 |
CN115636778B true CN115636778B (zh) | 2024-05-07 |
Family
ID=84948673
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202211410491.8A Active CN115636778B (zh) | 2022-11-11 | 2022-11-11 | 一种3-季碳取代吲哚啉-2-酮化合物的合成方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN115636778B (zh) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104496884A (zh) * | 2014-12-09 | 2015-04-08 | 大连理工大学 | 一种3-氧代吲哚啉类化合物的制备方法 |
WO2018103509A1 (zh) * | 2016-12-05 | 2018-06-14 | 华南理工大学 | 含连续季碳中心环丙烷氨基磷酸酯类化合物的合成方法 |
CN114426510A (zh) * | 2022-02-18 | 2022-05-03 | 常州大学 | 一种全取代β-内酰胺的合成方法 |
-
2022
- 2022-11-11 CN CN202211410491.8A patent/CN115636778B/zh active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104496884A (zh) * | 2014-12-09 | 2015-04-08 | 大连理工大学 | 一种3-氧代吲哚啉类化合物的制备方法 |
WO2018103509A1 (zh) * | 2016-12-05 | 2018-06-14 | 华南理工大学 | 含连续季碳中心环丙烷氨基磷酸酯类化合物的合成方法 |
CN114426510A (zh) * | 2022-02-18 | 2022-05-03 | 常州大学 | 一种全取代β-内酰胺的合成方法 |
Non-Patent Citations (2)
Title |
---|
"Catalytic Functionalization of Indoles by Copper-Mediated Carbene Transfer";Manuela Delgado-Rebollo et al;《ChemCatChem》;20141231;2047 – 2052 * |
"Copper(I)-carbenes as key intermediates in the [3 + 2]-cyclization of pyridine derivatives with alkenyldiazoacetates: a computational study";Luis A. López et al;《Organic & Biomolecular Chemistry》;20181214;646–654 * |
Also Published As
Publication number | Publication date |
---|---|
CN115636778A (zh) | 2023-01-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN111909016B (zh) | 2’-羟基-α,β-不饱和酮与双烯体环加成反应合成光学活性环己烯类化合物的方法 | |
CN106349147B (zh) | 一种吡咯衍生物的合成方法 | |
JP5968537B2 (ja) | エゼチミブの合成方法およびその方法で使用される中間体 | |
CN115636778B (zh) | 一种3-季碳取代吲哚啉-2-酮化合物的合成方法 | |
CN114716361B (zh) | 一种合成手性螺环茚酮-吡咯类化合物的方法 | |
CN113912577A (zh) | 洛克米兰醇中间体、洛克米兰醇及其衍生物和制备与应用 | |
CN110294730B (zh) | 一种二氟甲基硫化黄酮类化合物及其制备方法 | |
CN115784906B (zh) | 一种高选择性傅克芳基化反应制备三芳基甲烷衍生物的方法 | |
CN114907251B (zh) | 一种钯催化炔烃亲核甲基化反应构建甲基杂环化合物的方法 | |
Rudler et al. | A Major Breakthrough in the Use of Alkoxycarbene Complexes of Chromium and Tungsten for the Synthesis of Elaborate Organic Compounds: Dihydropyridine Induced Reductions and Cascade Insertion Reactions | |
CN114989178B (zh) | 一种螺[β-内酰胺-3,3’-氧化吲哚]类衍生物及其制备方法和应用 | |
CN113754544B (zh) | 一种多取代(e)-三氟甲基烯烃的制备方法 | |
CN113024363B (zh) | 合成环外联烯醇类化合物的方法 | |
CN108586457B (zh) | 一种基于氮原子α位氢迁移策略的吲哚碳环去芳香化合成方法 | |
CN111087402B (zh) | 一种不对称合成ETP类天然产物epicoccin G生物碱的方法 | |
WO2024040754A1 (zh) | 一种顺-2-甲基-7-十八烯以及顺式-7,8-环氧-2-甲基十八烷的合成方法 | |
CN113620795B (zh) | 苯并环庚烯酮类化合物的合成方法 | |
Kilama et al. | A new synthetic approach to the C‐D ring portion of streptonigrin analogues | |
KR20240149598A (ko) | 인돌린-3-온 화합물의 제조방법 | |
CN112961183B (zh) | C3-膦酰基取代苯并氢化呋喃和苯并呋喃化合物及其制备方法 | |
US5723624A (en) | Process for the preparation of 5-aryl-2,4-dialkyl-3H-1,2,4-triazole-3-thiones | |
CN109867645B (zh) | 一种2,2-二氟-2,3-二氢取代苯并呋喃类化合物的合成方法 | |
CN117050082A (zh) | 一种手性螺环β-内酰胺类衍生物的制备方法 | |
CN117567489A (zh) | 一种三溴化硼介导的无金属定向c-h硼化制备c-2硼化吲哚的方法 | |
CN116655567A (zh) | 一种合成2,3-二取代苯并呋喃类衍生物的方法 |
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 |