WO2020155925A1 - 一种硝基烷基喹喔啉或其衍生物、氨基烷基喹喔啉或其衍生物及其合成方法 - Google Patents
一种硝基烷基喹喔啉或其衍生物、氨基烷基喹喔啉或其衍生物及其合成方法 Download PDFInfo
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- WO2020155925A1 WO2020155925A1 PCT/CN2019/127295 CN2019127295W WO2020155925A1 WO 2020155925 A1 WO2020155925 A1 WO 2020155925A1 CN 2019127295 W CN2019127295 W CN 2019127295W WO 2020155925 A1 WO2020155925 A1 WO 2020155925A1
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D241/00—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings
- C07D241/36—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings condensed with carbocyclic rings or ring systems
- C07D241/38—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings condensed with carbocyclic rings or ring systems with only hydrogen or carbon atoms directly attached to the ring nitrogen atoms
- C07D241/40—Benzopyrazines
- C07D241/42—Benzopyrazines with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the hetero ring
Definitions
- This application relates to the technical field of organic synthesis. Specifically, this application relates to a nitroalkylquinoxaline or its derivative, an aminoalkylquinoxaline or its derivative, and their synthesis method.
- Quinoxaline and its derivatives are benzopyrazine compounds with excellent biological activity and thermal stability. They have been extensively studied in the fields of dyes, organic semiconductors, electroluminescent materials and anion receptors. Many methods have been developed to synthesize quinoxaline derivatives, such as the reaction of monomers containing o-phenylenediamine structure with ⁇ -hydroxy ketones or epoxides, and so on.
- Aminoquinoxaline has higher chemical bond energy, larger molar volume and weaker polarity, which gives the polymer prepared by it excellent heat resistance and oxidation resistance, higher environmental stability, and low Dielectric constant, dielectric loss. Aminoquinoxaline can be dissolved in organic solvents and has good operability.
- aminoquinoxaline diamine monomers usually exist as a mixture of two isomers.
- 2-(4-aminophenyl)-3-phenyl-6-aminoquinoxaline and 3-(4-aminophenyl)-2-phenyl-6-aminoquinoxaline usually exist as a mixture , This is limited in some applications, and usually the separation of the two isomers is more difficult.
- this application uses mononitro-substituted benzaldehyde or its derivatives and nitroethane as starting materials to prepare nitroalkenyl-substituted benzene or its derivatives, and then make the nitroalkenyl-substituted benzene Or its derivatives are reacted with mononitro substituted o-phenylenediamine or its derivatives to obtain nitroalkyl substituted quinoxaline or its derivatives; finally by reducing the nitroalkyl substituted quinoxaline or its derivatives
- the corresponding nitro group in the derivative can be used to prepare novel aminoalkylquinoxalines or their derivatives.
- the purpose of this application is also to provide a method for synthesizing aminoalkylquinoxalines or derivatives thereof.
- the purpose of this application is also to provide a method for synthesizing nitroalkylquinoxaline or its derivatives.
- the purpose of this application is also to provide a nitroalkylquinoxaline or its derivative.
- the present application provides a method for synthesizing nitroalkylquinoxalines or derivatives thereof, characterized in that the method comprises the following steps: in the presence of a catalyst, the mononitro substituted O-phenylenediamine or its derivative reacts with nitroalkenyl-substituted benzene or its derivative in a solvent for a predetermined period of time to obtain the nitroalkylquinoxaline or its derivative;
- the groups R1, R2, R3 and R4 are each independently selected from H, C1-C10 alkyl or nitro, and there is one and only one of the groups R1, R2, R3 and R4 Nitro
- nitroalkenyl substituted benzene or its derivative has a structure represented by the following general formula (II):
- the groups R21, R22, R23, R24 and R25 are each independently selected from H, C1-C10 alkyl or nitro, and the groups R21, R22, R23, R24 and R25 have and Only one is nitro;
- nitroalkylquinoxaline or its derivative has a structure represented by the following general formula (III):
- the groups R31, R32, R33 and R34 are each independently selected from H, C1-C10 alkyl or nitro, and only one of the groups R31, R32, R33 and R34 is Nitro; groups R41, R42, R43, R44 and R45 are each independently selected from H, C1-C10 alkyl or nitro, and only one of R41, R42, R43, R44 and R45 is nitro;
- the group R50 is a C1-C10 alkyl group.
- the catalyst is one or more of copper chloride, copper bromide or copper iodide.
- the mononitro-substituted o-phenylenediamine or its derivative is 3-nitro o-phenylenediamine, 4-nitro o-phenylenediamine, 5-nitro o-phenylenediamine Phenylene diamine, 6-nitro o-phenylenediamine, 3-methyl-4-nitro o-phenylenediamine, 5-methyl-4-nitro o-phenylenediamine, 3,5-dimethyl-4 -Nitro o-phenylenediamine or 3,5,6-trimethyl-4-nitro o-phenylenediamine.
- the nitroalkenyl-substituted benzene or derivative thereof includes 1-nitro-4-[(1e)-2-nitro-1-propen-1-yl] Benzene, 1-nitro-2-methyl-4-[(1e)-2-nitro-1-propen-1-yl]benzene, 1-nitro-2,5-dimethyl-4-[ (1e)-2-nitro-1-propene-1-yl]benzene, 1-nitro-2,3-dimethyl-4-[(1e)-2-nitro-1-propene-1- Benzene, 1-nitro-2,3,5-trimethyl-4-[(1e)-2-nitro-1-propen-1-yl]benzene, 1-nitro-2-ethyl -4-[(1e)-2-nitro-1-propen-1-yl]benzene.
- the solvent is ethanol.
- the nitroalkenyl-substituted benzene or its derivative is prepared by the following method: in the presence of a quaternary ammonium salt catalyst, nitrobenzaldehyde or its derivative React with nitroethane in an organic solvent for a predetermined period of time;
- nitrobenzaldehyde or its derivative has a structure represented by the following general formula (IV):
- the groups R61, R62, R63, R64, and R65 are each independently selected from H, C1-C10 alkyl or nitro, and the groups R61, R62, R63, R64, and R65 have and Only one is nitro.
- the quaternary ammonium salt catalyst is ammonium acetate
- the organic solvent is glacial acetic acid
- the nitrobenzaldehyde or its derivatives include 4-nitrobenzaldehyde, 3-nitrobenzaldehyde, 2-methyl-3-nitrobenzaldehyde, 3-methyl-4-nitro One or more of benzaldehyde, 5-methyl-4-nitrobenzaldehyde and 6-methyl-4-nitrobenzaldehyde.
- the present application provides a nitroalkylquinoxaline or a derivative thereof synthesized by the method for synthesizing a nitroalkylquinoxaline or a derivative thereof as described in the first aspect.
- the present application provides a method for synthesizing aminoalkylquinoxalines or derivatives thereof, the method comprising adding the nitroalkylquinoxalines or derivatives thereof as described in the second aspect The group is reduced to an amino group to obtain the aminoalkylquinoxaline or its derivative.
- the present application provides an aminoalkylquinoxaline or a derivative thereof synthesized by the method for synthesizing an aminoalkylquinoxaline or a derivative thereof as described in the third aspect.
- the beneficial effects of the present application are that the raw materials used in the method of the present application are cheap and easy to obtain, the synthesis process is simple, and the obtained target aminoalkylquinoxaline or its derivatives are easy to separate.
- Figure 1 shows the proton nuclear magnetic resonance spectrum of 1-nitro-4-[(1e)-2-nitro-1-propen-1-yl]benzene.
- Figure 2 shows 2-(4-nitrophenyl)-3-methyl-6-nitroquinoxaline and 3-(4-nitrophenyl)-2-methyl-6-nitroquinoxaline Proton nuclear magnetic resonance spectrum of the mixture.
- Figure 3 shows the proton nuclear magnetic resonance spectrum of 2-(4-aminophenyl)-3-methyl-6-aminoquinoxaline.
- Figure 4 shows the proton nuclear magnetic resonance spectrum of 3-(4-aminophenyl)-2-methyl-6-aminoquinoxaline.
- Aminoquinoxaline or its derivative is a new type of diamine monomer, and the polyimide, polyether, polyester and other polymers synthesized by it have excellent thermal and chemical stability.
- Nitroquinoxaline or its derivatives are precursor compounds for the synthesis of aminoquinoxalines or their derivatives.
- There are mature processes in the industry for converting nitro groups into amino groups such as catalytic hydrogenation reduction and hydrazine hydrate reduction.
- some processes for synthesizing nitroquinoline or its derivatives in the prior art are costly, some have low reaction yields, and some have harsh reaction conditions.
- the aminoquinoxaline or its derivatives synthesized in the prior art usually exist in the form of a mixture of two isomers, which limits the further improvement of the properties of polymers prepared therefrom.
- the present application provides a method for synthesizing nitroalkylquinoxalines or derivatives thereof, characterized in that the method comprises the following steps: in the presence of a catalyst, the mononitro substituted O-phenylenediamine or its derivative reacts with nitroalkenyl-substituted benzene or its derivative in a solvent for a predetermined period of time to obtain the nitroalkylquinoxaline or its derivative;
- the groups R1, R2, R3 and R4 are each independently selected from H, C1-C10 alkyl or nitro, and there is one and only one of the groups R1, R2, R3 and R4 Nitro
- nitroalkenyl substituted benzene or its derivative has a structure represented by the following general formula (II):
- the groups R21, R22, R23, R24 and R25 are each independently selected from H, C1-C10 alkyl or nitro, and the groups R21, R22, R23, R24 and R25 have and Only one is nitro;
- nitroalkylquinoxaline or its derivative has a structure represented by the following general formula (III):
- the groups R31, R32, R33 and R34 are each independently selected from H, C1-C10 alkyl or nitro, and only one of the groups R31, R32, R33 and R34 is Nitro; groups R41, R42, R43, R44 and R45 are each independently selected from H, C1-C10 alkyl or nitro, and only one of R41, R42, R43, R44 and R45 is nitro;
- the group R50 is a C1-C10 alkyl group.
- the arrow in the general formula (III) indicates that there are two isomers at the same time, specifically referring to the interchange of the substituents at the 2-position and 3-position on the quinoxaline nitrogen-containing six-membered ring A mixture of isomers.
- C1-C10 alkyl refers to a straight or branched alkyl group having 1 to 10 carbon atoms.
- the C1-C10 alkyl group includes methyl, ethyl, propyl, isopropyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl or decyl and the like.
- the nuclear magnetic resonance spectrometer used is Bruker 500M nuclear magnetic resonance spectrometer.
- the synthetic route of this example is as follows:
- nuclear magnetic resonance spectrometer used is Bruker 500M nuclear magnetic resonance spectrometer.
- 1 H NMR (CDCl 3 , 400 MHz) represents a proton nuclear magnetic resonance spectrum at 400 MHz with deuterated chloroform as a solvent.
- 1 H NMR (DMSO-d6,500MHz) represents the proton nuclear magnetic resonance spectrum at 500MHz with deuterated DMSO as solvent.
- Step 3 Synthesis of 2-(4-aminophenyl)-3-methyl-6-aminoquinoxaline and 3-(4-aminophenyl)-2-methyl-6-aminoquinoxaline
- the separated products were characterized by proton nuclear magnetic resonance, the spectra are shown in Figure 3 and Figure 4, and the nuclear magnetic peak data are as follows:
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Abstract
Description
Claims (10)
- 一种合成硝基烷基喹喔啉或其衍生物的方法,其特征在于,所述方法包括以下步骤:在存在催化剂的情况下,使单硝基取代的邻苯二胺或其衍生物与硝基烯基取代的苯或其衍生物在溶剂中反应预定时间段,得到所述硝基烷基喹喔啉或其衍生物;其中所述单硝基取代的邻苯二胺或其衍生物具有通过下述通式(I)所示的结构:在通式(I)中,基团R1、R2、R3和R4各自独立地选自H、C1-C10烷基或硝基,且基团R1、R2、R3和R4中的有且只有一种为硝基;其中,所述硝基烯基取代的苯或其衍生物具有通过下述通式(II)所示的结构:在通式(II)中,基团R21、R22、R23、R24和R25各自独立地选自H、C1-C10烷基或硝基,且基团R21、R22、R23、R24和R25中有且只有一种为硝基;其中,所述硝基烷基喹喔啉或其衍生物具有通过下述通式(III)所示的结构:在通式(III)中,基团R31、R32、R33和R34各自独立地选自H、C1-C10烷基或硝基,且基团R31、R32、R33和R34中有且只有一种为硝基;基团R41、R42、R43、R44和R45各自独立地选自H、C1-C10烷基或硝基,且R41、R42、R43、R44和R45中有且只有一种为硝基;基团R50为C1-C10烷基。
- 如权利要求1所述的合成硝基烷基喹喔啉或其衍生物的方法,其特征在于,所述催化剂为氯化铜、溴化铜或碘化铜中的一种或几种。
- 如权利要求1所述的合成硝基烷基喹喔啉或其衍生物的方法,其特征在于,所述单硝基取代的邻苯二胺或其衍生物为3-硝基邻苯二胺、4-硝基邻苯二胺、5-硝基邻苯二胺、6-硝基邻苯二胺、3-甲基-4-硝基邻苯二胺、5-甲基-4-硝基邻苯二胺、3,5-二甲基-4-硝基邻苯二胺或者3,5,6-三甲基-4-硝基邻苯二胺。
- 如权利要求1所述的合成硝基烷基喹喔啉或其衍生物的方法,其特征在于,所述硝基烯基取代的苯或其衍生物包括1-硝基-4-[(1e)-2-硝基-1-丙烯-1-基]苯、1-硝基-2-甲基-4-[(1e)-2-硝基-1-丙烯-1-基]苯、1-硝基-2,5-二甲基-4-[(1e)-2-硝基-1-丙烯-1-基]苯、1-硝基-2,3-二甲基-4-[(1e)-2-硝基-1-丙烯-1-基]苯、1-硝基-2,3,5-三甲基-4-[(1e)-2-硝基-1-丙烯-1-基]苯、1-硝基-2-乙基-4-[(1e)-2-硝基-1-丙烯-1-基]苯。
- 如权利要求1所述的合成硝基烷基喹喔啉或其衍生物的方法,其特征在于,所述溶剂为乙醇。
- 如权利要求6所述的合成硝基烷基喹喔啉或其衍生物的方法,其特征在于,所述季铵盐催化剂为醋酸铵;和/或,所述有机溶剂为冰醋酸;和/或,所述硝基苯甲醛或其衍生物包括4-硝基苯甲醛、3-硝基苯甲醛、2-甲基-3-硝基苯甲醛、3-甲基-4-硝基苯甲醛、5-甲基-4-硝基苯甲醛、6-甲基-4-硝基苯甲醛中的一种或几种。
- 一种通过如权利要求1-7中任一项所述的合成硝基烷基喹喔啉或其衍生物的方法所合成的硝基烷基喹喔啉或其衍生物。
- 一种合成氨基烷基喹喔啉或其衍生物的方法,所述方法包括将如权利要求8所述的硝基烷基喹喔啉或其衍生物的硝基还原成氨基,得到所述氨基烷基喹喔啉或其衍生物。
- 一种通过如权利要求9所述的合成氨基烷基喹喔啉或其衍生物的方法所合成的氨基烷基喹喔啉或其衍生物。
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| CN118546355A (zh) * | 2024-06-07 | 2024-08-27 | 濮阳市盛通聚源新材料有限公司 | 一种高耐热和高强度透明尼龙材料及其制备方法 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3630994A (en) * | 1969-12-29 | 1971-12-28 | Ashland Oil Inc | Polyimides prepared from substituted quinoxalines |
| US3637692A (en) * | 1969-10-02 | 1972-01-25 | Billy M Culbertson | Substituted quinoxalines |
| CN108840827A (zh) * | 2018-09-18 | 2018-11-20 | 同济大学 | 一步法合成二硝基取代的喹喔啉或其衍生物的方法 |
| CN109608406A (zh) * | 2019-01-28 | 2019-04-12 | 上海交通大学 | 一种硝基烷基喹喔啉或其衍生物、氨基烷基喹喔啉或其衍生物及其合成方法 |
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| CN105153144B (zh) * | 2015-09-01 | 2017-11-28 | 哈尔滨工程大学 | 主链双胺型喹喔啉基苯并噁嗪及其制备方法 |
| CN107089954B (zh) * | 2017-05-12 | 2020-04-24 | 常州市阳光药业有限公司 | 合成氨基喹喔啉混合物的方法 |
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- 2019-01-28 CN CN201910078895.3A patent/CN109608406A/zh active Pending
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3637692A (en) * | 1969-10-02 | 1972-01-25 | Billy M Culbertson | Substituted quinoxalines |
| US3630994A (en) * | 1969-12-29 | 1971-12-28 | Ashland Oil Inc | Polyimides prepared from substituted quinoxalines |
| CN108840827A (zh) * | 2018-09-18 | 2018-11-20 | 同济大学 | 一步法合成二硝基取代的喹喔啉或其衍生物的方法 |
| CN109608406A (zh) * | 2019-01-28 | 2019-04-12 | 上海交通大学 | 一种硝基烷基喹喔啉或其衍生物、氨基烷基喹喔啉或其衍生物及其合成方法 |
Non-Patent Citations (2)
| Title |
|---|
| CHEN YONGXIN; LI KANGNING; ZHAO MINGMING; LI YUANJIAO; CHEN BAOHUA: "Cu(II)-catalyzed synthesis of quinoxalines from o-phenylenediamines and nitroolefins", TETRAHEDRON LETTERS, vol. 54, no. 13, 7 December 2012 (2012-12-07), pages 1627 - 1630, XP028993892, ISSN: 0040-4039, DOI: 10.1016/j.tetlet.2012.11.127 * |
| PAVAN SUDHEER AKULA, HONG BOR-CHERNG, LEE GENE-HSIANG: "Catalyst and Substituent Controlled Switching of Chemoselectivity for the Enantioselective Synthesis of Fully Substituted Cyclobutane Derivatives via 2+2 Annulation of Vinylogous Ketone Enolates and Nitroalkene", ORGANIC LETTERS, vol. 20, no. 24, 10 December 2018 (2018-12-10), pages 7835 - 7839, XP055724082, ISSN: 1523-7060, DOI: 10.1021/acs.orglett.8b03335 * |
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