CN116143681A - N-芳基邻苯二甲酰亚胺衍生物及其在有机光化学中的应用 - Google Patents
N-芳基邻苯二甲酰亚胺衍生物及其在有机光化学中的应用 Download PDFInfo
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 26
- 150000001336 alkenes Chemical class 0.000 claims abstract description 11
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000006552 photochemical reaction Methods 0.000 claims abstract description 9
- 238000007259 addition reaction Methods 0.000 claims abstract description 6
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- 239000000126 substance Substances 0.000 claims abstract description 3
- 125000001424 substituent group Chemical group 0.000 claims description 4
- 125000003118 aryl group Chemical group 0.000 claims description 2
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- 238000003786 synthesis reaction Methods 0.000 abstract description 6
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- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 42
- -1 N- (pentafluorophenyl) -3-bromophthalimide Chemical compound 0.000 description 19
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 18
- 239000012074 organic phase Substances 0.000 description 12
- 239000000243 solution Substances 0.000 description 11
- 238000002360 preparation method Methods 0.000 description 10
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 9
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical class [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 9
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- 229960000583 acetic acid Drugs 0.000 description 9
- 239000012362 glacial acetic acid Substances 0.000 description 9
- 239000007787 solid Substances 0.000 description 9
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- NCXZQUNDWVKMGX-UHFFFAOYSA-N 5,6,7,7a-tetrachloro-3ah-2-benzofuran-1,3-dione Chemical compound ClC1=C(Cl)C(Cl)=CC2C(=O)OC(=O)C21Cl NCXZQUNDWVKMGX-UHFFFAOYSA-N 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- CDIDGWDGQGVCIB-UHFFFAOYSA-N 3,5-bis(trifluoromethyl)aniline Chemical compound NC1=CC(C(F)(F)F)=CC(C(F)(F)F)=C1 CDIDGWDGQGVCIB-UHFFFAOYSA-N 0.000 description 3
- ZKLQKNDCBYXTBC-UHFFFAOYSA-N 5,6,7,7a-tetrafluoro-3aH-2-benzofuran-1,3-dione Chemical compound FC1=C(F)C(F)=CC2C(=O)OC(=O)C21F ZKLQKNDCBYXTBC-UHFFFAOYSA-N 0.000 description 3
- 238000007792 addition Methods 0.000 description 3
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- 239000003208 petroleum Substances 0.000 description 3
- 238000010898 silica gel chromatography Methods 0.000 description 3
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical class O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 3
- ICSNLGPSRYBMBD-UHFFFAOYSA-N 2-aminopyridine Chemical compound NC1=CC=CC=N1 ICSNLGPSRYBMBD-UHFFFAOYSA-N 0.000 description 2
- ODGIMMLDVSWADK-UHFFFAOYSA-N 4-trifluoromethylaniline Chemical compound NC1=CC=C(C(F)(F)F)C=C1 ODGIMMLDVSWADK-UHFFFAOYSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 239000012300 argon atmosphere Substances 0.000 description 2
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- 229910000027 potassium carbonate Inorganic materials 0.000 description 2
- 238000007348 radical reaction Methods 0.000 description 2
- 238000006722 reduction reaction Methods 0.000 description 2
- NOXLGCOSAFGMDV-UHFFFAOYSA-N 2,3,4,5,6-pentafluoroaniline Chemical compound NC1=C(F)C(F)=C(F)C(F)=C1F NOXLGCOSAFGMDV-UHFFFAOYSA-N 0.000 description 1
- UERPUZBSSSAZJE-UHFFFAOYSA-N 3-chlorophthalic anhydride Chemical compound ClC1=CC=CC2=C1C(=O)OC2=O UERPUZBSSSAZJE-UHFFFAOYSA-N 0.000 description 1
- AQBFKBMMIDHCFS-UHFFFAOYSA-N 4-bromo-2-benzofuran-1,3-dione Chemical compound BrC1=CC=CC2=C1C(=O)OC2=O AQBFKBMMIDHCFS-UHFFFAOYSA-N 0.000 description 1
- RXQNKKRGJJRMKD-UHFFFAOYSA-N 5-bromo-2-methylaniline Chemical compound CC1=CC=C(Br)C=C1N RXQNKKRGJJRMKD-UHFFFAOYSA-N 0.000 description 1
- WREVVZMUNPAPOV-UHFFFAOYSA-N 8-aminoquinoline Chemical compound C1=CN=C2C(N)=CC=CC2=C1 WREVVZMUNPAPOV-UHFFFAOYSA-N 0.000 description 1
- DIIWSYPKAJVXBV-UHFFFAOYSA-N Hantzch dihydropyridine Natural products CCOC(=O)C1=CC(C(=O)OCC)=C(C)N=C1C DIIWSYPKAJVXBV-UHFFFAOYSA-N 0.000 description 1
- 101000577210 Homo sapiens Sodium-dependent phosphate transport protein 2A Proteins 0.000 description 1
- 206010020751 Hypersensitivity Diseases 0.000 description 1
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N N-phenyl amine Natural products NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 1
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 102100025289 Sodium-dependent phosphate transport protein 1 Human genes 0.000 description 1
- 101710165379 Sodium-dependent phosphate transport protein 1 Proteins 0.000 description 1
- 102100025262 Sodium-dependent phosphate transport protein 2A Human genes 0.000 description 1
- 230000009471 action Effects 0.000 description 1
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- 150000001448 anilines Chemical class 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 229940125681 anticonvulsant agent Drugs 0.000 description 1
- 239000001961 anticonvulsive agent Substances 0.000 description 1
- 239000002246 antineoplastic agent Substances 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical class CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 206010012601 diabetes mellitus Diseases 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
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- 230000007246 mechanism Effects 0.000 description 1
- GYVGXEWAOAAJEU-UHFFFAOYSA-N n,n,4-trimethylaniline Chemical compound CN(C)C1=CC=C(C)C=C1 GYVGXEWAOAAJEU-UHFFFAOYSA-N 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- HVAMZGADVCBITI-UHFFFAOYSA-M pent-4-enoate Chemical compound [O-]C(=O)CCC=C HVAMZGADVCBITI-UHFFFAOYSA-M 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- XKJCHHZQLQNZHY-UHFFFAOYSA-N phthalimide Chemical compound C1=CC=C2C(=O)NC(=O)C2=C1 XKJCHHZQLQNZHY-UHFFFAOYSA-N 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- KAVUKAXLXGRUCD-UHFFFAOYSA-M sodium trifluoromethanesulfinate Chemical compound [Na+].[O-]S(=O)C(F)(F)F KAVUKAXLXGRUCD-UHFFFAOYSA-M 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229940124597 therapeutic agent Drugs 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D209/00—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D209/02—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom condensed with one carbocyclic ring
- C07D209/44—Iso-indoles; Hydrogenated iso-indoles
- C07D209/48—Iso-indoles; Hydrogenated iso-indoles with oxygen atoms in positions 1 and 3, e.g. phthalimide
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- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
- B01J31/0234—Nitrogen-, phosphorus-, arsenic- or antimony-containing compounds
- B01J31/0271—Nitrogen-, phosphorus-, arsenic- or antimony-containing compounds also containing elements or functional groups covered by B01J31/0201 - B01J31/0231
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- B01J35/00—Catalysts, in general, characterised by their form or physical properties
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- C07D263/00—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings
- C07D263/02—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings
- C07D263/08—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
- C07D263/16—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member 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
- C07D263/18—Oxygen atoms
- C07D263/20—Oxygen atoms attached in position 2
- C07D263/26—Oxygen atoms attached in position 2 with hetero atoms or acyl radicals directly attached to the ring nitrogen atom
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- C07D401/04—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings directly linked by a ring-member-to-ring-member bond
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- B01J2231/34—Other additions, e.g. Monsanto-type carbonylations, addition to 1,2-C=X or 1,2-C-X triplebonds, additions to 1,4-C=C-C=X or 1,4-C=-C-X triple bonds with X, e.g. O, S, NH/N
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Abstract
本发明公开了一类化学结构式如下式所示的N‑芳基邻苯二甲酰亚胺衍生物,该类化合物作为电子受体催化剂,可催化可见光介导的有机光化学反应,如烯烃α‑加成‑γ‑消除反应、亚胺加成反应、烯烃双官能团化反应等;本发明提供的NAPI衍生物催化的有机光化学反应条件温和,无需外加光敏剂,且可以与多种自由基前体、自由基受体、金属催化剂进行组合,有较好的合成应用前景;
Description
技术领域
本发明属于化学合成与有机小分子技术领域,涉及一类N-芳基邻苯二甲酰亚胺(NAPI)衍生物的新用途,即用于催化烯烃加成消除反应、亚胺加成反应等一系列可见光介导的有机光化学反应。
背景技术
N-芳基邻苯二甲酰亚胺(N-arylphthalimide,NAPI)衍生物作为一类简单的有机化合物,已得到广泛研究,发现多种用途,主要集中在对其生物活性的研究。在生物化学领域,NAPI衍生物具有多种不同的生物学活性,包括但不限于作为广谱抗菌药(J.Pharm.Pharmacol.2011,16,163-173)、潜在的糖尿病治疗药物(Eur.J.Med.Chem.2011,46,4324-4329)、抗超敏药物、抗惊厥药物和抗癌药物。此外,NAPI衍生物可作为高分子材料的添加剂,用于轮胎橡胶的增强改性等方面。
电子给受体(EDA)络合物光化学是近年来兴起的研究领域,符合绿色合成的理念。其中,基于催化量电子给体或受体的EDA催化光反应的效率较高,是近来备受关注的新方向。目前,关于电子给体催化的研究已经较为丰富,而电子受体催化的研究还少有报道。NAPI衍生物作为一种潜在的电子受体催化剂,有望用于发展EDA络合物介导的受体催化光氧化还原反应,并应用于精细化工和药物合成领域。
发明内容
本发明提供了一类N-芳基邻苯二甲酰亚胺(N-arylphthalimide,NAPI)衍生物,其化学结构通式如下:
式中:R1、R2、R3、R4分别选自氢、氟、氯、溴、碘,Ar为具有不同取代基团的芳基。
上述N-芳基邻苯二甲酰亚胺衍生物选自如下任一结构:
本发明N-芳基邻苯二甲酰亚胺衍生物采用常规方法制得,合成制备简便易行,例如以取代邻苯二甲酸酐和取代苯胺等化合物为原料,参考文献Org.Chem.Front.2022,9,1308-1314中方法制备。
本发明另一目的是将上述N-芳基邻苯二甲酰亚胺衍生物作为电子受体催化剂,应用在可见光介导的有机光化学反应中。
所述应用中的N-芳基邻苯二甲酰亚胺衍生物选自如下任一结构:
本发明基于NAPI衍生物与富电子化合物形成的电子给受体(EDA)络合物的吸光性,以及电子受体对光氧化还原自由基生成途径的催化作用,发现此类NAPI衍生物在烯烃α-加成-γ-消除反应、烯烃双官能团化反应、亚胺加成反应等可见光促进的自由基反应中有良好至优秀的催化活性。NAPI衍生物的催化性能可以通过改变取代基加以调整,有利于发展具有潜在合成应用前景的有机光化学反应。
本发明的优点和技术效果:
1、本发明提供的NAPI衍生物可以作为电子受体催化有机光化学反应,作用机制新颖;
2、本发明提供的NAPI衍生物可以在邻苯二甲酰亚胺母核以及N-芳基上分别引入不同的取代基,实现对催化性能的调整和反应效果的优化;
3、本发明提供的NAPI衍生物催化的有机光化学反应条件温和,无需外加光敏剂,且可以与多种自由基前体、自由基受体、金属催化剂进行组合,有较好的合成应用前景。
具体实施方式
如前所述,N-芳基邻苯二甲酰亚胺(N-arylphthalimide,NAPI)衍生物能够有效催化一系列新颖的光氧化还原自由基反应。以下对本发明技术方案的具体实施方式详细描述,但并不构成对本发明保护范围的限定;本发明实施例中所使用的试剂均为市售的分析纯试剂,实施例中化合物未公开制备工艺的,都是参照常规方法制得;
实施例1:N-(五氟苯基)-3-溴邻苯二甲酰亚胺(NAPI-1)的制备
在干燥的圆底烧瓶中依次加入3-溴邻苯二甲酸酐(5.00mmol)、五氟苯胺(5.50mmol)和冰醋酸(1.0mL),在120℃下搅拌12h,反应完全后冷却至室温,以饱和碳酸氢钠溶液和乙酸乙酯分相,分出有机相,以无水硫酸钠干燥,过滤浓缩后重结晶得到N-(五氟苯基)-3-溴邻苯二甲酰亚胺(白色固体,1.80g,92%);
1H NMR(600MHz,CDCl3)δ8.14(d,J=1.7Hz,1H),8.00(dd,J=8.0,1.7Hz,1H),7.87(d,J=8.0Hz,1H).
13C NMR(150MHz,CDCl3)δ163.1,162.6,143.9(bs),142.2(bs),140.4(bs),137.9(bs),137.1,136.2(bs),132.1,129.2,129.1,126.8,124.8,105.5(bs).
实施例2:N-(3,5-二三氟甲基)-3-氯邻苯二甲酰亚胺(NAPI-2)的制备
在干燥的圆底烧瓶中依次加入3-氯邻苯二甲酸酐(5.00mmol)、3,5-二三氟甲基苯胺(5.50mmol)和冰醋酸(1.0mL),在120℃下搅拌12h,反应完全后冷却至室温,以饱和碳酸氢钠溶液和乙酸乙酯分相,分出有机相,以无水硫酸钠干燥,过滤浓缩后重结晶得到N-(3,5-二三氟甲基)-3-氯邻苯二甲酰亚胺(白色固体,1.85g,94%);
1H NMR(600MHz,CDCl3)δ7.95(s,2H),7.91–7.81(m,3H),7.75(d,J=8.4Hz,1H).
13C NMR(150MHz,CDCl3)δ164.3,164.0,140.9,134.2,132.0,131.8,131.6(q,2JCF=34Hz),128.1,125.1(q,3JCF=3.5Hz),124.4,123.6,121.7(q,1JCF=270Hz),120.7(quintet,3JCF=3.5Hz),119.04.
实施例3:N-(3-溴-6-甲基苯基)-2,3,4,5-四氯邻苯二甲酰亚胺(NAPI-3)的制备
在干燥的圆底烧瓶中依次加入2,3,4,5-四氯邻苯二甲酸酐(5.00mmol)、3-溴-6-甲基苯胺(5.50mmol)和冰醋酸(1.0mL),在120℃下搅拌12h,反应完全后冷却至室温,以饱和碳酸氢钠溶液和乙酸乙酯分相,分出有机相,以无水硫酸钠干燥,过滤浓缩后重结晶得到N-(3-溴-6-甲基苯基)-2,3,4,5-四氯邻苯二甲酰亚胺(白色固体,2.06g,91%);
1H NMR(600MHz,CDCl3)δ7.52(dd,J=8.3,2.1Hz,1H),7.34(d,J=2.1Hz,1H),7.25(d,J=8.3Hz,1H),2.15(s,3H).
13C NMR(150MHz,CDCl3)δ161.13,139.75,134.54,131.99,131.54,130.45,129.83,129.28,126.22,118.53,16.69.
实施例4:N-(3,5-二三氟甲基苯基)-2,3,4,5-四氯邻苯二甲酰亚胺(NAPI-4)的制备
在干燥的圆底烧瓶中依次加入2,3,4,5-四氯邻苯二甲酸酐(5.00mmol)、3,5-二三氟甲基苯胺(5.50mmol)和冰醋酸(1.0mL),在120℃下搅拌12h,反应完全后冷却至室温,以饱和碳酸氢钠溶液和乙酸乙酯分相,分出有机相,以无水硫酸钠干燥,过滤浓缩后重结晶得到N-(3,5-二三氟甲基苯基)-2,3,4,5-四氯邻苯二甲酰亚胺(白色固体,2.31g,93%);
1H NMR(600MHz,DMSO-d6)δ8.34(s,1H),8.22(s,2H).
实施例5:N-(8-喹啉基)-2,3,4,5-四氯邻苯二甲酰亚胺(NAPI-5)的制备
在干燥的圆底烧瓶中依次加入2,3,4,5-四氯邻苯二甲酸酐(5.00mmol)、8-氨基喹啉(5.50mmol)和冰醋酸(1.0mL),在120℃下搅拌12h,反应完全后冷却至室温,以饱和碳酸氢钠溶液和乙酸乙酯分相,分出有机相,以无水硫酸钠干燥,过滤浓缩后重结晶得到N-(8-喹啉基)-2,3,4,5-四氯邻苯二甲酰亚胺(白色固体,1.87g,91%);
1H NMR(600MHz,CDCl3)δ8.85(d,J=4.2Hz,1H),8.25(d,J=7.8Hz,1H),8.00(d,J=7.8,1H),7.74(d,J=7.8,1H),7.69(t,J=7.8Hz,1H),7.47(dd,J=7.8,4.2Hz,1H).
实施例6:N-(4-三氟甲基苯基)-2,3,4,5-四氯邻苯二甲酰亚胺(NAPI-6)的制备
在干燥的圆底烧瓶中依次加入2,3,4,5-四氯邻苯二甲酸酐(5.00mmol)、4-三氟甲基苯胺(5.50mmol)和冰醋酸(1.0mL),在120℃下搅拌12h,反应完全后冷却至室温,以饱和碳酸氢钠溶液和乙酸乙酯分相,分出有机相,以无水硫酸钠干燥,过滤浓缩后重结晶得到N-(4-三氟甲基苯基)-2,3,4,5-四氯邻苯二甲酰亚胺(白色固体,1.93g,90%);
1H NMR(600MHz,DMSO-d6)δ7.97(d,J=7.8Hz,2H),7.70(d,J=7.8Hz,2H).
实施例7:N-(3,5-二三氟甲基苯基)-2,3,4,5-四氟邻苯二甲酰亚胺(NAPI-7)的制备
在干燥的圆底烧瓶中依次加入2,3,4,5-四氟邻苯二甲酸酐(5.00mmol)、3,5-二三氟甲基苯胺(5.50mmol)和冰醋酸(1.0mL),在120℃下搅拌12h,反应完全后冷却至室温,以饱和碳酸氢钠溶液和乙酸乙酯分相,分出有机相,以无水硫酸钠干燥,过滤浓缩后重结晶得到N-(3,5-二三氟甲基苯基)-2,3,4,5-四氟邻苯二甲酰亚胺(白色固体,2.00g,93%);
1H NMR(600MHz,CDCl3)δ7.91(s,2H),7.89(s,1H).
13C NMR(150MHz,CDCl3)δ159.5,145.5(bs),143.9(bs),143.8(bs),142.2(bs),131.9(q,2JCF=34Hz),131.0,125.2(q,3JCF=3.5Hz),121.6(q,1JCF=270Hz),121.3(quintet,3JCF=3.5Hz),111.9(d,J=9Hz).
实施例8:N-(2-吡啶基)-2,3,4,5-四氟邻苯二甲酰亚胺(NAPI-8)的制备
在干燥的圆底烧瓶中依次加入2,3,4,5-四氟邻苯二甲酸酐(5.00mmol)、2-氨基吡啶(5.50mmol)和冰醋酸(1.0mL),在120℃下搅拌12h,反应完全后冷却至室温,以饱和碳酸氢钠溶液和乙酸乙酯分相,分出有机相,以无水硫酸钠干燥,过滤浓缩后重结晶得到N-(2-吡啶基)-2,3,4,5-四氟邻苯二甲酰亚胺(白色固体,1.40g,95%);
1H NMR(600MHz,CDCl3)δ8.67(d,J=3.6Hz,1H),7.92(td,J=7.8,1.8Hz,1H),7.44-7.38(m,2H).
13C NMR(150MHz,CDCl3)δ159.8,148.8,145.2(bs),143.8,143.7(bs),143.4(bs),141.9(bs),137.6,123.2,121.0,112.5(d,J=9Hz).
实施例9:N-(4-三氟甲基苯基)-2,3,4,5-四氟邻苯二甲酰亚胺(NAPI-9)的制备
在干燥的圆底烧瓶中依次加入2,3,4,5-四氟邻苯二甲酸酐(5.00mmol)、4-三氟甲基苯胺(5.50mmol)和冰醋酸(1.0mL),在120℃下搅拌12h,反应完全后冷却至室温,以饱和碳酸氢钠溶液和乙酸乙酯分相,分出有机相,以无水硫酸钠干燥,过滤浓缩后重结晶得到N-(4-三氟甲基苯基)-2,3,4,5-四氟邻苯二甲酰亚胺(白色固体,1.70g,94%);
1H NMR(600MHz,CDCl3)δ7.73(d,J=8.4Hz,2H),7.52(d,J=8.4Hz,2H).
实施例10:NAPI衍生物催化的烯烃α-加成-γ-消除反应
取一装有磁力搅拌子的反应管烘干后冷却至室温,加入4-(3,3,3-三氟丙-1-烯-2-基)-1,1'-联苯(37.3mg,0.15mmol)、4-异丙基Hantzsch酯(66.5mg,0.23mmol)、无水碳酸钠(15.9mg,0.15mmol)、NAPI衍生物(0.03mmol),氩气保护下加入NMP(1.0mL),在蓝光LED灯照射下室温反应,监测反应直至反应物完全消耗;使用饱和食盐水和乙酸乙酯萃取反应液,合并有机相,用无水Na2SO4干燥,过滤、浓缩后,经硅胶柱层析纯化(石油醚)得到产物;
1H NMR(600MHz,CDCl3)δ7.63(d,J=7.8Hz,2H),7.62(d,J=7.8Hz,2H),7.48(t,J=7.8Hz,2H),7.43(d,J=7.8Hz,2H),7.38(t,J=7.8Hz,1H),2.36-2.32(m,2H),1.67(septet,J=6.6Hz,1H),0.94(d,J=6.6Hz,6H).
NAPI衍生物的催化烯烃α-加成-γ-消除反应的活性结果见表1;
表1
实施例11:NAPI衍生物催化的亚胺加成反应
取一装有磁力搅拌子的反应管烘干后冷却至室温,加入乙醛酸乙酯恶唑啉酮亚胺(30.0mg,0.16mmol)、4-甲基-N,N-二甲基苯胺(40.6mg,0.32mmol)、无水碳酸钾(31.1mg,0.24mmol)、NAPI衍生物(0.03mmol),氩气保护下加入NMP(1.0mL),在蓝光LED灯照射条件下室温反应,监测反应直至反应物完全消耗,使用饱和食盐水和乙酸乙酯萃取反应液,合并有机相,用无水Na2SO4干燥,过滤、浓缩后经硅胶柱层析纯化(石油醚:乙酸乙酯=1:1),得到产物;
1H NMR(600MHz,CDCl3)δ7.05(d,J=8.4Hz,2H),6.75(d,J=8.4Hz,2H),4.76(s,1H),4.58(dd,J=9.0,7.2Hz,1H),4.34(q,J=7.2Hz,1H),4.28-4.12(m,3H),3.87(t,J=7.2Hz,1H),3.80-3.75(m,1H),3.59(q,J=8.4Hz,1H),3.54-3.50(m,1H),2.95(s,3H),2.25(s,3H),1.27(t,J=7.2Hz,3H).
NAPI衍生物的催化亚胺加成反应的活性结果见表2;
表2
实施例12:NAPI衍生物催化的烯烃双官能团化反应
取一装有磁力搅拌子的反应管烘干后冷却至室温,加入乙醛酸乙酯恶唑啉酮亚胺(30.0mg,0.16mmol)、无水碳酸钾(33.5mg,0.24mmol)、NAPI衍生物(0.03mmol)、三氟甲基亚磺酸钠(75.5mg,0.48mmol)、醋酸烯丙酯(48.5mg,0.48mmol),氩气保护下加入NMP(1.0mL),在蓝光LED灯照射条件下室温反应,监测反应直至反应物完全消耗,使用饱和食盐水和乙酸乙酯萃取反应液。合并有机相,用无水Na2SO4干燥,过滤、浓缩后经硅胶柱层析纯化(石油醚:乙酸乙酯=1:1),得到产物(3:2非对映异构体混合物);
1H NMR(600MHz,CDCl3)δ4.62(bs,1H),4.30-4.14(m,6H),3.83(d,J=3.0Hz,1H),3.71-3.58(m,2H),2.63-2.36(m,2H),2.29-2.10(m,1H),2.04(s,3H),1.30(t,J=7.2Hz,3H).
HRMS(ESI)m/z[M+Na]+calcd.for C13H19N2O6F3 379.1087,found 379.1088.
NAPI衍生物的催化烯烃双官能团化反应的活性结果见表3;
表3
以上所述仅是本发明的优选实施方式。应当指出,对于本技术领域的普通技术人员,在不脱离本发明方法的前提下,还可进行若干改进和补充,这些可能的改进和补充也应视为本发明的保护范围。
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