CN112174972B - 氮杂咔咯化合物及其制备方法 - Google Patents

氮杂咔咯化合物及其制备方法 Download PDF

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CN112174972B
CN112174972B CN202011195217.4A CN202011195217A CN112174972B CN 112174972 B CN112174972 B CN 112174972B CN 202011195217 A CN202011195217 A CN 202011195217A CN 112174972 B CN112174972 B CN 112174972B
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李筱芳
孙雅涵
于贤勇
谭家希
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Hunan University of Science and Technology
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    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D487/00Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00
    • C07D487/22Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00 in which the condensed system contains four or more hetero rings
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    • B01J31/00Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/16Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
    • B01J31/18Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes containing nitrogen, phosphorus, arsenic or antimony as complexing atoms, e.g. in pyridine ligands, or in resonance therewith, e.g. in isocyanide ligands C=N-R or as complexed central atoms
    • B01J31/1805Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes containing nitrogen, phosphorus, arsenic or antimony as complexing atoms, e.g. in pyridine ligands, or in resonance therewith, e.g. in isocyanide ligands C=N-R or as complexed central atoms the ligands containing nitrogen
    • B01J31/181Cyclic ligands, including e.g. non-condensed polycyclic ligands, comprising at least one complexing nitrogen atom as ring member, e.g. pyridine
    • B01J31/1825Ligands comprising condensed ring systems, e.g. acridine, carbazole
    • B01J31/183Ligands comprising condensed ring systems, e.g. acridine, carbazole with more than one complexing nitrogen atom, e.g. phenanthroline
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    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2531/00Additional information regarding catalytic systems classified in B01J31/00
    • B01J2531/02Compositional aspects of complexes used, e.g. polynuclearity
    • B01J2531/0238Complexes comprising multidentate ligands, i.e. more than 2 ionic or coordinative bonds from the central metal to the ligand, the latter having at least two donor atoms, e.g. N, O, S, P
    • B01J2531/0241Rigid ligands, e.g. extended sp2-carbon frameworks or geminal di- or trisubstitution
    • B01J2531/025Ligands with a porphyrin ring system or analogues thereof, e.g. phthalocyanines, corroles
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    • B01J2531/00Additional information regarding catalytic systems classified in B01J31/00
    • B01J2531/80Complexes comprising metals of Group VIII as the central metal
    • B01J2531/84Metals of the iron group
    • B01J2531/847Nickel

Abstract

本发明提供了一种氮杂咔咯化合物及其制备方法。本发明的氮杂咔咯化合物,其结构式如式(1)所示。本发明的制备方法主要包括,称取一定量的去甲咔咯和胺类化合物置于反应瓶中,以二氯甲烷作溶剂;在常温搅拌下加入一定量的亚碘酰苯反应2小时,用色谱方法跟踪反应;待反应完全后,浓缩反应液,直接用层析柱加以分离,收集绿色带即为粗产品,经浓缩、干燥后得所需化合物。本发明只需通过一步法便合成得到了芳基氮杂咔咯化合物,具有反应选择性好、操作简便等优点,通过选择不同的芳胺类化合物,可制备得到不同取代基的氮杂咔咯化合物。
Figure DDA0002753823720000011

Description

氮杂咔咯化合物及其制备方法
技术领域
本发明属于有机合成技术领域,具体涉及一种氮杂咔咯化合物及其制备方法。
背景技术
与去甲咔咯相比,氮杂咔咯在吡咯-吡咯键间插入一个氮原子,表现出明显的芳香性,成为与普通卟啉相似的18π芳香族共轭的新型分子。而卟啉类化合物的性质很大程度上受其骨架和结构的影响,因此氮原子的插入大大的改变了其性质与电子结构,使其具有更加新颖的性质,在化学催化、电极材料、电池和分子自组装、生物传感器以及配位化学等领域具有潜在的应用前景,逐渐成为人们关注的焦点。
目前,氮杂咔咯的合成方法已有少量文献报道(Chem.Commun.,2016,52,3540—3543;Chem.Eur.J.2012,18,5919-5923;Org.Lett.2016,18,2978–2981),但其合成方法颇为复杂繁琐。传统的方法需要经过多步合成,使用价格相对较高的钯作催化剂,反应温度高,收率低,且只能合成苄基氮杂咔咯。因此申请人经过大量实验探索和研究,得到了一条简单的合成路线,只需通过一步法便合成得到了芳基氮杂咔咯化合物,此类化合物为我们首次合成,没有文献报导。为氮杂咔咯化合物的功能化提供一种全新的合成途径。
发明内容
本发明的目的之一在于提供上述经过一步法合成的氮杂咔咯化合物。
本发明的氮杂咔咯化合物,其结构式如式(1)所示:
Figure BDA0002753823700000021
其中,R为式(2)至式(6)结构式中之一所示:
Figure BDA0002753823700000022
本发明的目的之二在于提供上述氮杂咔咯化合物的制备方法,它包括如下顺序的步骤:
(1)称取一定量的去甲咔咯和胺类化合物置于反应瓶中,以二氯甲烷作溶剂;其中,去甲咔咯的结构式如式(7)所示:
Figure BDA0002753823700000023
(2)在常温搅拌下加入一定量的亚碘酰苯反应2小时,用色谱方法跟踪反应;
(3)待反应完全后,浓缩反应液,直接用层析柱加以分离,收集绿色带即为粗产品,经浓缩、干燥后得所需化合物。
优选地,步骤(1)中,胺类化合物和去甲咔咯两种反应物的物质的量之比为4.5:1。
优选地,步骤(2)中,去甲咔咯与亚碘酰苯的物质的量之比为3.5:1。
优选地,步骤(2)中,跟踪反应的色谱方法是薄层色谱法、气相色谱法和高效液相色谱法中的任意一种,从而判断反应是否完成。
优选地,步骤(3)中,柱层析中所用洗脱剂是体积比为4:1的石油醚与二氯甲烷的混合溶剂,分离采用柱层析法,以便提高产物纯度。
本发明与现有技术相比,具有如下有益效果:
(1)具有反应选择性好、操作简便等优点。
(2)本发明方法通过选择不同的芳胺类化合物,可制备得到不同取代基的氮杂咔咯化合物。
(3)制备的氮杂咔咯化合物在化学催化和光电子领域有潜在的应用前景。
(4)利用本发明合成方法得到氮杂咔咯化合物具有优异的产率,且能在产业上实现批量生产。
附图说明
图1为本发明实施例3所制备产品的单晶X-射线衍射图。
具体实施方式
下面结合附图和具体实验实例对本发明做进一步的详细描述,具体实施例并不对本发明做任何限定。
实施例1:
称取去甲咔咯(30mg,0.052mmol)和4-氨基苯甲醛(0.234mmol)于10mL小瓶中,向上述小瓶中加入二氯甲烷(5ml),在室温搅拌下再加入亚碘酰苯(0.18mmol)反应2小时,用薄层色谱(TLC)跟踪反应,待反应完全后,用200-300目硅胶进行柱层析,用体积比为4:1或者5:1的石油醚和二氯甲烷的混合溶剂作为洗脱剂,收集绿色带,收集到的溶液经浓缩、干燥后得到绿色产物4-甲酰基苯基氮杂咔咯化合物,产率为94%。
产物波谱表征数据如下:1H NMR(500MHz,CDCl3,298K)δ:1.92(s,12H,-CH3),2.51(s,6H,-CH3),7.13(s,4H,ArH),7.16(d,J=4.5Hz,2H,pyrrH),7.91(d,J=4.0Hz,2H,pyrrH),8.01(d,J=8.0Hz,2H,ArH),8.08(d,J=4.5Hz,2H,pyrrH),8.23(d,J=8.0Hz,2H,ArH),8.28(d,J=4.0Hz,2H,pyrrH),10.27(s,1H,-CHO);13C NMR(125MHz,CDCl3,298K)δ:19.67,20.10,111.44,116.02,124.20,126.45,127.37,128.90,129.68,130.57,131.83,131.85,133.82,136.08,136.31,137.16,141.78,143.59,145.81,189.71.UV-vis(CH2Cl2max/nm(logε):396(5.08),438(4.49),561(3.95),594(3.87),637(3.90).ESI-HRMScalc.for C43H36N5NiO+[M+H]+:696.2268,Found:696.2268。
光谱数据表明上述制备方法得到了4-甲酰基苯基氮杂咔咯化合物。
实施例2:
本实施例采用与实施例1基本相同的合成工艺,原料改为对氰基苯胺用量为0.234mmol,得绿色产物,即得产品氮杂咔咯化合物,产率为73%。
产物波谱表征数据如下:1H NMR(500MHz,CDCl3,298K)δ:1.92(s,12H,-CH3),2.51(s,6H,-CH3),7.12(d,J=5.0Hz,2H,pyrrH),7.13(s,4H,ArH),7.90(d,J=4.5Hz,2H,pyrrH),7.98(d,J=8.5Hz,2H,ArH),8.04(d,J=8.5Hz,2H,ArH),8.08(d,J=5.0Hz,2H,pyrrH),8.27(d,J=4.5Hz,2H,pyrrH);13C NMR(125MHz,CDCl3,298K)δ:19.65,20.10,111.10,113.26,116.16,116.46,124.39,126.46,127.61,129.83,130.64,131.68,131.82,131.89,133.72,136.37,137.13,141.61,143.73,144.68.UV-vis(CH2Cl2max/nm(logε):394(5.03),438(4.45),565(3.93),592(3.77),640(3.91).ESI-HRMS calc.for C43H35N6Ni+[M+H]+:693.2271,Found:693.2268。
光谱数据表明上述制备方法得到了4-氰基苯基氮杂咔咯化合物。
实施例3:
本实施例采用与实施例1基本相同的合成工艺,原料改为对硝基苯胺,用量为0.234mmol,得绿色产物,即得产品4-硝基苯基氮杂咔咯化合物,产率为71%。
产物波谱表征数据如下:1H NMR(500MHz,CDCl3,298K)δ:1.92(s,12H,-CH3),2.51(s,6H,-CH3),7.13(s,4H,ArH),7.14(d,J=4.5Hz,2H,pyrrH),7.90(d,J=4.5Hz,2H,pyrrH),8.03(d,J=9.0Hz,2H,ArH),8.09(d,J=4.5Hz,2H,pyrrH),8.27(d,J=4.5Hz,2H,pyrrH),8.59(d,J=9.0Hz,2H,ArH);13C NMR(125MHz,CDCl3,298K)δ:19.65,20.10,111.02,116.22,122.69,123.04,123.56,124.46,126.48,127.72,129.99,130.68,131.82,131.92,133.70,136.39,137.12,141.52,143.79,146.18,147.49.UV-vis(CH2Cl2max/nm(logε):394(5.01),439(4.47),565(4.01),591(3.85),640(3.95).ESI-HRMS calc.forC42H35N6NiO2 +[M+H]+:713.2169,Found:713.2166。
光谱数据表明上述制备方法得到了4-硝基苯基氮杂咔咯化合物。图1所示为本实施例所制得产品的单晶X射线衍射图。
实施例4:
本实施例采用与实施例1基本相同的合成工艺,原料改为3-氟苯胺,用量为0.234mmol,得绿色产物,即得产品氮杂咔咯化合物,产率为82%。
产物波谱表征数据如下:1H NMR(500MHz,CDCl3,298K)δ:1.92(s,12H,-CH3),2.51(s,6H,-CH3),7.13(s,4H,ArH),7.22(d,J=4.0Hz,2H,pyrrH),7.50-7.51(m,1H,ArH),7.61-7.63(m,1H,ArH),7.67-7.68(m,2H,ArH),7.90(d,J=4.0Hz,2H,pyrrH),8.08(d,J=4.5Hz,2H,pyrrH),8.28(d,J=4.0Hz,2H,pyrrH));13C NMR(125MHz,CDCl3,298K)δ:19.68,20.13,111.69,115.85,116.25(d,J=21Hz),116.66(d,J=23Hz),123.99,124.81,124.84,126.42,126.45,127.19,128.82,128.89,130.51,131.73,131.89,133.90,136.27,137.18,137.23,142.13,142.21,142.28,143.45,161.15(d,J=250Hz).UV-vis(CH2Cl2max/nm(logε):393(5.01),439(4.43),563(3.94),590(3.83),635(3.94).ESI-HRMS calc.forC42H34FN5Ni+[M]+:685.2146,Found:685.2145。
光谱数据表明上述制备方法得到了3-氟苯基氮杂咔咯化合物。
实施例5:
本实施例采用与实施例1基本相同的合成工艺,原料改为4-甲氧羰基苯胺,用量为0.234mmol,得绿色产物,即得产品氮杂咔咯化合物,产率为72%。
产物波谱表征数据如下:1H NMR(500MHz,CDCl3,298K)δ:1.92(s,12H,-CH3),2.51(s,6H,-CH3),4.05(s,3H,-OCH3),7.13(s,4H,ArH),7.19(d,J=4.5Hz,2H,pyrrH),7.90(d,J=4.0Hz,2H,pyrrH),7.94(d,J=8.0Hz,2H,ArH),8.08(d,J=4.5Hz,2H,pyrrH),8.28(d,J=4.0Hz,2H,pyrrH),8.41(d,J=8.0Hz,2H,ArH);13C NMR(125MHz,CDCl3,298K)δ:19.68,20.11,51.45,111.63,115.91,124.05,126.44,127.20,128.95,129.08,130.52,130.69,131.78,131.88,133.89,136.28,137.19,141.96,143.49,144.77,164.88;UV-vis(CH2Cl2max/nm(logε):394(5.03),438(4.45),561(3.97),590(3.81),635(3.93).ESI-HRMScalc.for C44H38N5NiO2 +[M+H]+:726.2373,Found:726.2377。
光谱数据表明上述制备方法得到了4-甲氧羰基苯基氮杂咔咯化合物。

Claims (5)

1.一种氮杂咔咯化合物的制备方法,所述氮杂咔咯化合物,其结构式如式(1)所示:
Figure FDA0003249960490000011
其中,R为式(2)至式(6)结构式中之一所示:
Figure FDA0003249960490000012
其特征在于包括如下顺序的步骤:
(1)称取一定量的去甲咔咯和胺类化合物置于反应瓶中,以二氯甲烷作溶剂;其中,去甲咔咯的结构式如式(7)所示:
Figure FDA0003249960490000013
所述胺类化合物为4-氨基苯甲醛、对氰基苯胺、对硝基苯胺、3-氟苯胺和4-甲氧羰基苯胺中的一种;
(2)在常温搅拌下加入一定量的亚碘酰苯反应2小时,用色谱方法跟踪反应;
(3)待反应完全后,浓缩反应液,直接用层析柱加以分离,收集绿色带即为粗产品,经浓缩、干燥后得所需化合物。
2.根据权利要求1所述氮杂咔咯化合物的制备方法,其特征在于:步骤(1)中,胺类化合物和去甲咔咯两种反应物的物质的量之比为4.5:1。
3.根据权利要求1所述氮杂咔咯化合物的制备方法,其特征在于:步骤(2)中,去甲咔咯与亚碘酰苯的物质的量之比为3.5:1。
4.根据权利要求1所述氮杂咔咯化合物的制备方法,其特征在于:步骤(2)中,跟踪反应的色谱方法是薄层色谱法、气相色谱法和高效液相色谱法中的任意一种。
5.根据权利要求1所述氮杂咔咯化合物的制备方法,其特征在于:步骤(3)中,柱层析中所用洗脱剂是体积比为4:1的石油醚与二氯甲烷的混合溶剂。
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Heterocorroles: corrole analogues containing heteroatom(s) in the core or at a meso-position;Booruga Umasekhar et al.;《RSC Adv.》;20180608;第8卷;第21103页Scheme 2-3、第21104页Scheme 4 *
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