CN110483563A - A kind of preparation method and application of novel ionic betanaphthol aldehyde schiff bases zirconium complex - Google Patents

A kind of preparation method and application of novel ionic betanaphthol aldehyde schiff bases zirconium complex Download PDF

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CN110483563A
CN110483563A CN201910843557.4A CN201910843557A CN110483563A CN 110483563 A CN110483563 A CN 110483563A CN 201910843557 A CN201910843557 A CN 201910843557A CN 110483563 A CN110483563 A CN 110483563A
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betanaphthol
aldehyde
schiff bases
zirconium
complex
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CN110483563B (en
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李宁波
王灵晓
王静
靳朝晖
郝英健
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Shanxi Jiaxiangrui Technology Co ltd
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Shanxi Medical University
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/16Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
    • B01J31/22Organic complexes
    • B01J31/2204Organic complexes the ligands containing oxygen or sulfur as complexing atoms
    • B01J31/2208Oxygen, e.g. acetylacetonates
    • B01J31/2217At least one oxygen and one nitrogen atom present as complexing atoms in an at least bidentate or bridging ligand
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D211/00Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings
    • C07D211/04Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D211/80Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having two double bonds between ring members or between ring members and non-ring members
    • C07D211/84Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having two double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen directly attached to ring carbon atoms
    • C07D211/90Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen
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    • C07F7/00Compounds containing elements of Groups 4 or 14 of the Periodic Table
    • C07F7/003Compounds containing elements of Groups 4 or 14 of the Periodic Table without C-Metal linkages
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2531/00Additional information regarding catalytic systems classified in B01J31/00
    • B01J2531/40Complexes comprising metals of Group IV (IVA or IVB) as the central metal
    • B01J2531/48Zirconium

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Abstract

The invention belongs to be catalyzed technical field of organic synthesis, and in particular to a kind of preparation method and application of novel ionic betanaphthol aldehyde schiff bases zirconium complex.Zirconium atom of the present invention and betanaphthol aldehyde schiff base ligand and water molecule coordination, two perfluor alkane (virtue) base sulfonic acid groups are respectively with covalent bond and ionic bond in conjunction with central atom zirconium.Betanaphthol aldehyde schiff bases zirconium dichloride is dissolved in solvent, and in N2Under protection, silver salt is added, is protected from light 1-4h at room temperature, is filtered, n-hexane is added in filtrate, until layering, is put into refrigerator freezing for 24 hours, betanaphthol aldehyde schiff bases zirconium complex is precipitated.Betanaphthol aldehyde schiff bases zirconium complex has high air stability and strong lewis acid, can efficient catalytic aldehyde, Hantzsch reaction synthesis Isosorbide-5-Nitrae-dihydrogen pyridine derivative of 'beta '-ketoester and ammonium acetate.

Description

A kind of preparation method and application of novel ionic betanaphthol aldehyde schiff bases zirconium complex
Technical field
The invention belongs to be catalyzed technical field of organic synthesis, and in particular to a kind of novel ionic betanaphthol aldehyde schiff bases zirconium The preparation method and application of complex.
Background technique
Isosorbide-5-Nitrae-dihydropyridine compound is nitrogen-containing heterocycle compound, has extensive biology and pharmacy value.Especially facing The diseases such as cardiovascular and cerebrovascular and hypertension are treated as calcium ion channel blocker on bed, also in platelet aggregation-against, neuroprotection And it is played an important role in terms of anti-ischemic.It is anti-by Hantzsch for synthesizing the classical way of 1,4- dihydropyridine compounds It answers: being prepared by the ammonia condensation reaction of the aldehyde of a molecule, the 'beta '-ketoester of two molecules and a molecule.In recent years, Isosorbide-5-Nitrae-two is explored The synthetic method of pyridinium hydroxide compound simple and effective has become the hot spot of organic synthesis field.
Currently, reported catalyst specifically includes that (1) bronsted acid catalyst: HClO4-SiO2, phenyl boric acid, PTSA, Alumina sulfuric acid (ASA), silica sulfuric acid (SSA), HAc etc.;(2) lewis acid catalyst: Cu(OTf)2、AlCl3·6H2O、RuCl3、CeCl3·7H2O、La2O3Deng;(3) ionic-liquid catalyst: TMGT, [EMIM] OAc Deng;However there are still some problems for the above catalyst, if catalyst easily deliquesces, catalytic activity is low, poor selectivity, catalyst It cannot recycle, pollute the environment, therefore, seeking a kind of new catalyst can the above-mentioned azepine of efficient catalytic The synthesis of cycle compound is still worth us to further investigate.
Zirconium because of metal coordination ability with higher and catalytic activity and the concern by scientists.In recent years, organic zirconium Compound has more application in organic synthesis, catalytic field, is applied especially to catalysis in olefine polymerization.However, matching containing schiff bases The zirconium complex of body is seldom as lewis acid catalyst report.Possible cause is that the hetero atom (N, O) of ligand is matched with zirconium metal Position, reduces the lewis acidity of zirconium central atom.It was found that introducing perfluoroalkyl (aryl) sulphur of long-chain in previous work Acid groups can increase complex to the stability and acidity of air, be based on this theory, and in the present invention, we use betanaphthol Aldehyde schiff bases zirconium dichloride (preparation method see document Analytica Chimica Acta, 2005,551,37) is initial former Material goes the chlorine atom of displacement schiff bases zirconium dichloride with strong electrophilic long-chain perfluor alkane (benzene) base azochlorosulfonate acid anion, closes At betanaphthol aldehyde schiff bases zirconium complex.And the introducing of long-chain perfluoroalkyl (aryl) increases stability and the Louis of complex This is acid.Further, betanaphthol aldehyde schiff bases zirconium complex can synthesize Isosorbide-5-Nitrae-dihydrogen pyridine derivative with efficient catalytic.Currently, Both at home and abroad not yet about the preparation method of betanaphthol aldehyde schiff bases zirconium complex and to catalyze and synthesize 1,4- dihydropyridine derivative The open source literature of object and patent application.
Summary of the invention
The present invention provides a kind of preparation sides of novel ionic betanaphthol aldehyde schiff bases zirconium complex regarding to the issue above Method and application.
In order to achieve the above object of the invention, the present invention proposes following technical proposal:
A kind of novel ionic betanaphthol aldehyde schiff bases zirconium complex:
Cationic betanaphthol aldehyde schiff bases zirconium complex (I), by zirconium atom and naphthol novolak schiff base ligand and a water Molecule and an X coordination, another anion X-Ionic bond is formed with the cationic portion of complex;Complex structure formula (I) as follows:
The X is perfluoro octyl sulfonic acid group OSO2C8F17, pentafluorophenyl group sulfonic acid group OSO2C6F5, perfluoro hexyl sulfonic acid Group OSO2C6F13Or perfluoro butyl sulfonic acid group OSO2C4F9One of;
A kind of preparation method of novel ionic betanaphthol aldehyde schiff bases zirconium complex:
Betanaphthol aldehyde schiff bases zirconium dichloride is dissolved in solvent, and in N2Under protection, silver salt is added, at room temperature It is protected from light 1-4h, is filtered, n-hexane is added in filtrate, until layering, is put into refrigerator freezing for 24 hours, precipitation complex is betanaphthol Aldehyde schiff bases zirconium complex (I).
The solvent: tetrahydrofuran, acetone, acetonitrile, methanol or ethyl alcohol;The silver salt are as follows: perfluoro octyl sulfonic acid silver AgOSO2C8F17, pentafluorophenyl group sulfonic acid silver AgOSO2C6F5, perfluoro hexyl sulfonic acid silver AgOSO2C6F13Or perfluoro butyl sulfonic acid silver AgOSO2C4F9One of.
A kind of application of novel ionic betanaphthol aldehyde schiff bases zirconium complex:
Betanaphthol aldehyde schiff bases zirconium complex (I) can be catalyzed: the Hantzsch reaction preparation 1 of aldehyde, 'beta '-ketoester and ammonium acetate, 4- dihydrogen pyridine derivative.
A kind of application method of novel ionic betanaphthol aldehyde schiff bases zirconium complex:
It the use of betanaphthol aldehyde schiff bases zirconium complex (I) is catalyst, with aldehyde, 'beta '-ketoester and ammonium acetate are raw material, with normal It uses organic solvent as reaction dissolvent, reacts 1-12h at 50-120 DEG C.After completion of the reaction, solvent is removed, methylene chloride is added Catalyst is recycled in dilution, filtering, and filtrate is spin-dried for, and by column chromatography for separation, obtains Isosorbide-5-Nitrae-dihydrogen pyridine derivative;Its structural formula It is as follows for (II):
R1For phenyl, p-methylphenyl, p-methoxyphenyl, p-hydroxybenzene, o-fluorophenyl, rubigan, to bromobenzene Base, O-Nitrophenylfluorone, m-nitro base, one of 2- naphthalene, styryl, 2- furfuryl group, ethyl or propyl;R2For methyl or One of ethyl;
The aldehyde is benzaldehyde, p-tolyl aldehyde, P-methoxybenzal-dehyde, parahydroxyben-zaldehyde, o fluorobenzaldehyde, right Chlorobenzaldehyde, p-bromobenzaldehyde, o-nitrobenzaldehyde, m-nitrobenzaldehyde, 2- naphthaldehyde, cinnamic acid, furfural, propionic aldehyde or butyraldehyde One of;
The 'beta '-ketoester is one of methyl acetoacetate or ethyl acetoacetate;
The solvent is one of tetrahydrofuran, acetonitrile, 1,2 dichloroethanes, acetone, ethyl alcohol, toluene;
The dosage of the catalyst is 1.0-10mol%;Catalyst reusable 5 times or more.
Compared with prior art the invention has the following advantages that
Method provided by the present invention is a kind of preparation method of ionic seat betanaphthol aldehyde husband's alkali zirconium complex and its urges It is combined to 1,4- dihydrogen pyridine derivative.A new effective simple pathway is opened to prepare Isosorbide-5-Nitrae-dihydrogen pyridine derivative, Catalyst stability is high and catalytic activity is high, and catalyst can reuse 5 times or more, and experimental implementation is easy.
Detailed description of the invention
Fig. 1 prepares the route map of betanaphthol aldehyde schiff bases zirconium complex;
Fig. 2 catalyzes and synthesizes 1,4- dihydrogen pyridine derivative.
Specific embodiment
The synthetic route of betanaphthol aldehyde schiff bases zirconium complex provided by the present invention, is shown in Fig. 1: by betanaphthol aldehyde schiff bases Zirconium dichloride is dissolved in one of tetrahydrofuran, acetone, acetonitrile, methanol, ethyl alcohol, dichloromethane solvent, N2Under protection, to One of perfluor alkane (virtue) base sulfonic acid silver is wherein added, is protected from light l-4h at room temperature.N-hexane is added in filtering, filtrate, directly To layering.It is put into refrigerator freezing for 24 hours, complex is precipitated, filters to obtain yellow solid betanaphthol aldehyde schiff bases zirconium complex.
Betanaphthol aldehyde schiff bases zirconium complex is applied to catalyze and synthesize Isosorbide-5-Nitrae-dihydrogen pyridine derivative as catalyst, prepares Isosorbide-5-Nitrae-dihydropyridine compound can foundation: by aldehyde, 'beta '-ketoester and ammonium acetate and solvent are added in reaction vessel, at 50-120 DEG C React 1-12h.After completion of the reaction, methylene chloride is added, catalyst is recovered by filtration, filtrate is spin-dried for, and crude product is through column chromatography for separation Obtain target compound.
Note: the above-mentioned reaction solvent is tetrahydrofuran, acetonitrile, one kind of 1,2 dichloroethanes, ethyl alcohol, toluene;It is described to urge The dosage of agent is 1.0-10mol%;Catalyst reusable 5 times or more.
Below with reference to specific preparation example, the present invention will be further described:
One, the synthesis of novel betanaphthol aldehyde schiff bases zirconium perfluor alkane (benzene) base sulphonic acid complex
Preparation example 1
Betanaphthol aldehyde schiff bases schiff bases zirconium dichloride (1.0mmol) is dissolved in tetrahydrofuran (THF), N2Protection Under, perfluoro octyl sulfonic acid silver (2.0mmol) is added, is protected from light 1h at room temperature.N-hexane is added in filtering, filtrate, until layering. It is put into refrigerator freezing for 24 hours, yellow solid, yield 80% is precipitated.
Preparation example 2
Betanaphthol aldehyde schiff bases schiff bases zirconium dichloride (1.0mmol) is dissolved in acetonitrile (CH3CN in), N2Under protection, add It is silver-colored (2.0mmol) to enter perfluorophenyl sulfonic acid, is protected from light 3h at room temperature.N-hexane is added in filtering, filtrate, until layering.It is put into For 24 hours, yellow color solid, yield 70% is precipitated in refrigerator freezing.
Preparation example 3
Betanaphthol aldehyde schiff bases schiff bases zirconium dichloride (1.0mmol) is dissolved in acetone, N2Under protection, perfluor is added Hexyl sulfonic acid is silver-colored (2.0mmol), is protected from light 2h at room temperature.N-hexane is added in filtering, filtrate, until layering.It is cold to be put into refrigerator Freeze for 24 hours, yellow solid, yield 74% is precipitated.
Preparation example 4
Betanaphthol aldehyde schiff bases schiff bases zirconium dichloride (1.0mmol) is dissolved in methylene chloride, N2Under protection, it is added Perfluoro butyl sulfonic acid is silver-colored (2.0mmol), is protected from light 4h at room temperature.N-hexane is added in filtering, filtrate, until layering.It is put into ice Case freezes for 24 hours, and yellow solid, yield 67% is precipitated.
Two, betanaphthol aldehyde schiff bases zirconium complex catalyzes and synthesizes 1,4- dihydropyridine compound
Preparation example 1
Benzaldehyde (1mmol) is added in 50mL round-bottomed flask, ethyl acetoacetate (2.0mmol), ammonium acetate (1.2mmol), solvent THF (2mL) and betanaphthol aldehyde schiff bases zirconium perfluoro octyl sulfonic acid complex (X=OSO2C8F17) (0.05mmol) stirs 12h at 80 DEG C.It is spin-dried for solvent, residue CH after reaction2Cl2Solid catalysis is collected in extraction 3 times Agent is to recycle, combined CH2Cl2Filtrate, revolving, residue separates with silica gel column chromatography, obtains faint yellow solid, and 2,6- Dimethyl -4- phenyl -3,5- diethyl oxygen carbonyl-Isosorbide-5-Nitrae-dihydropyridine, yield 94%.
Preparation example 2
P-chlorobenzaldehyde (1mmol) is added in 50mL round-bottomed flask, ethyl acetoacetate (2.0mmol), ammonium acetate (1.2mmol), solvent acetonitrile (2mL) and betanaphthol aldehyde schiff bases zirconium perfluorophenyl sulphonic acid complex (X=OSO2C6F5) (0.05mmol) stirs 2h at 100 DEG C.It is spin-dried for solvent, residue CH after reaction2Cl2Solid catalysis is collected in extraction 3 times Agent is to recycle, combined CH2Cl2Filtrate, revolving, residue separates with silica gel column chromatography, obtains faint yellow solid, and 2,6- Dimethyl -4- (rubigan) -3,5- diethyl oxygen carbonyl-Isosorbide-5-Nitrae-dihydropyridine, yield 95%.
Preparation example 3
P-bromobenzaldehyde (1mmol) is added in 50mL round-bottomed flask, ethyl acetoacetate (2.0mmol), ammonium acetate (1.2mmol), solvent THF (2mL) and betanaphthol aldehyde schiff bases zirconium perfluoro butyl sulphonic acid complex (X=OSO2C4F9) (0.05mmol) stirs 12h at 80 DEG C.It is spin-dried for solvent, residue CH after reaction2Cl2Solid catalysis is collected in extraction 3 times Agent is to recycle, combined CH2Cl2Filtrate, revolving, residue separates with silica gel column chromatography, obtains faint yellow solid, and 2,6- Dimethyl -4- (rubigan) -3,5- diethyl oxygen carbonyl-Isosorbide-5-Nitrae-dihydropyridine, yield 93%.
Preparation example 4
M-nitrobenzaldehyde (1mmol) is added in 50mL round-bottomed flask, ethyl acetoacetate (2.0mmol), ammonium acetate (1.2mmol), solvent acetone (2mL) and betanaphthol aldehyde schiff bases zirconium perfluoro octyl sulfonic acid complex (X=OSO2C8F17) (0.05mmol) stirs 12h at 50 DEG C.It is spin-dried for solvent, residue CH after reaction2Cl2Solid catalysis is collected in extraction 3 times Agent is to recycle, combined CH2Cl2Filtrate, revolving, residue separates with silica gel column chromatography, obtains faint yellow solid, and 2,6- Dimethyl -4- (m-nitro base) -3,5- diethyl oxygen carbonyl-Isosorbide-5-Nitrae-dihydropyridine, yield 78%.
Preparation example 5
P-tolyl aldehyde (1mmol) is added in 50mL round-bottomed flask, ethyl acetoacetate (2.0mmol), ammonium acetate (1.2mmol), etoh solvent (2mL) and betanaphthol aldehyde schiff bases zirconium perfluoro octyl sulfonic acid complex (X=OSO2C8F17) (0.05mmol) stirs 8h at 80 DEG C.It is spin-dried for solvent, residue CH after reaction2Cl2Solid catalysis is collected in extraction 3 times Agent is to recycle, combined CH2Cl2Filtrate, revolving, residue separates with silica gel column chromatography, obtains faint yellow solid, and 2,6- Dimethyl -4- (p-methylphenyl) -3,5- diethyl oxygen carbonyl-Isosorbide-5-Nitrae-dihydropyridine, yield 84%.
Preparation example 6
P-methoxybenzal-dehyde (1mmol) is added in 50mL round-bottomed flask, ethyl acetoacetate (2.0mmol), acetic acid Ammonium (1.2mmol), solvent THF (2mL) and betanaphthol aldehyde schiff bases zirconium perfluoro hexyl sulphonic acid complex (X=OSO2C6F13) (0.05mmol) stirs 6h at 100 DEG C.It is spin-dried for solvent, residue CH after reaction2Cl2Solid catalysis is collected in extraction 3 times Agent is to recycle, combined CH2Cl2Filtrate, revolving, residue separates with silica gel column chromatography, obtains faint yellow solid, and 2,6- Dimethyl -4- (p-methoxyphenyl) -3,5- diethyl oxygen carbonyl-Isosorbide-5-Nitrae-dihydropyridine, yield 82%.
Preparation example 7
Parahydroxyben-zaldehyde (1mmol) is added in 50mL round-bottomed flask, ethyl acetoacetate (2.0mmol), ammonium acetate (1.2mmol), solvent 1,2- dichloroethanes (2mL) and betanaphthol aldehyde schiff bases zirconium perfluoro octyl sulfonic acid complex (X= OSO2C8F17) (0.10mmol), 8h is stirred at 80 DEG C.It is spin-dried for solvent, residue CH after reaction2Cl2Extraction 3 times is collected Solid catalyst is to recycle, combined CH2Cl2Filtrate, revolving, residue are separated with silica gel column chromatography, obtain pale yellow colored solid Body, 2,6- dimethyl -4- (p-hydroxybenzene) -3,5- diethyl oxygen carbonyl-Isosorbide-5-Nitrae-dihydropyridine, yield 87%.
Preparation example 8
Propionic aldehyde (1mmol) is added in 50mL round-bottomed flask, ethyl acetoacetate (2.0mmol), ammonium acetate (1.2mmol), solvent THF (2mL) and betanaphthol aldehyde schiff bases zirconium perfluoro octyl sulfonic acid complex (X=OSO2C8F17) (0.05mmol) stirs 12h at 100 DEG C.It is spin-dried for solvent, residue CH after reaction2Cl2Extraction 3 times is collected solid and is urged Agent is to recycle, combined CH2Cl2Filtrate, revolving, residue separates with silica gel column chromatography, obtains faint yellow solid, and 2, 6- dimethyl -4- ethyl -3,5- diethyl oxygen carbonyl-Isosorbide-5-Nitrae-dihydropyridine, yield 94%.
Preparation example 9
Trans-cinnamic aldehyde (1mmol) is added in 50mL round-bottomed flask, ethyl acetoacetate (2.0mmol), ammonium acetate (1.2mmol), solvent 1,2- methylene chloride (2mL) and betanaphthol aldehyde schiff bases zirconium perfluoro butyl sulphonic acid complex (X= OSO2C4F9) (0.05mmol), 10h is stirred at 80 DEG C.It is spin-dried for solvent, residue CH after reaction2Cl2Extraction 3 times is collected Solid catalyst is to recycle, combined CH2Cl2Filtrate, revolving, residue are separated with silica gel column chromatography, obtain pale yellow colored solid Body, (E) 2,6- dimethyl -4- styryl -3,5- diethyl oxygen carbonyl-Isosorbide-5-Nitrae-dihydropyridine, yield 90%.
Preparation example 10
Furfural (1mmol) is added in 50mL round-bottomed flask, ethyl acetoacetate (2.0mmol), ammonium acetate (1.2mmol), solvent THF (2mL) and betanaphthol aldehyde schiff bases zirconium perfluoro octyl sulfonic acid complex (X=OSO2C8F17) (0.05mmol) stirs 9h at 80 DEG C.It is spin-dried for solvent, residue CH after reaction2Cl2Solid catalysis is collected in extraction 3 times Agent is to recycle, combined CH2Cl2Filtrate, revolving, residue are separated with silica gel column chromatography, obtain faint yellow solid 2,6- bis- Methyl -4- (2- furfuryl group) -3,5- diethyl oxygen carbonyl-Isosorbide-5-Nitrae-dihydropyridine, yield 87%.
Preparation example 11
2- naphthaldehyde (1mmol) is added in 50mL round-bottomed flask, ethyl acetoacetate (2.0mmol), ammonium acetate (1.2mmol), solvent THF (2mL) and betanaphthol aldehyde schiff bases zirconium perfluoro octyl sulfonic acid complex (X=OSO2C8F17) (0.05mmol) stirs 12h at 70 DEG C.It is spin-dried for solvent, residue CH after reaction2Cl2Solid catalysis is collected in extraction 3 times Agent is to recycle, combined CH2Cl2Filtrate, revolving, residue are separated with silica gel column chromatography, obtain faint yellow solid 2,6- bis- Methyl -4- (2- naphthalene) -3,5- diethyl oxygen carbonyl-Isosorbide-5-Nitrae-dihydropyridine, yield 90%.
Preparation example 12
Benzaldehyde (1mmol) is added in 50mL round-bottomed flask, methyl acetoacetate (2.0mmol), ammonium acetate (1.2mmol), solvent THF (2mL) and betanaphthol aldehyde schiff bases zirconium perfluoro butyl sulphonic acid complex (X=OSO2C4F9) (0.05mmol) stirs 12h at 90 DEG C.It is spin-dried for solvent, residue CH after reaction2Cl2Solid catalysis is collected in extraction 3 times Agent is to recycle, combined CH2Cl2Filtrate, revolving, residue separates with silica gel column chromatography, obtains faint yellow solid, and 2,6- Dimethyl -4- phenyl -3,5- dimethoxycarbonyl-Isosorbide-5-Nitrae-dihydropyridine, yield 91%.
Preparation example 13
P-chlorobenzaldehyde (1mmol) is added in 50mL round-bottomed flask, methyl acetoacetate (2.0mmol), ammonium acetate (1.2mmol), solvent THF (2mL) and betanaphthol aldehyde schiff bases zirconium perfluoro butyl sulphonic acid complex (X=OSO2C6F13) (0.05mmol) stirs 10h at 80 DEG C.It is spin-dried for solvent, residue CH after reaction2Cl2Solid catalysis is collected in extraction 3 times Agent is to recycle, combined CH2Cl2Filtrate, revolving, residue separates with silica gel column chromatography, obtains faint yellow solid, and 2,6- Dimethyl -4- (rubigan) -3,5- dimethoxycarbonyl-Isosorbide-5-Nitrae-dihydropyridine, yield 94%.
Preparation example 14
P-tolyl aldehyde (1mmol) is added in 50mL round-bottomed flask, methyl acetoacetate (2.0mmol), ammonium acetate (1.2mmol), solvent THF (2mL) and betanaphthol aldehyde schiff bases zirconium perfluoro butyl sulphonic acid complex (X=OSO2C4F9) (0.01mmol) stirs 1h at 100 DEG C.It is spin-dried for solvent, residue CH after reaction2Cl2Solid catalysis is collected in extraction 3 times Agent is to recycle, combined CH2Cl2Filtrate, revolving, residue separates with silica gel column chromatography, obtains faint yellow solid, and 2,6- Dimethyl -4- (p-methylphenyl) -3,5- dimethoxycarbonyl-Isosorbide-5-Nitrae-dihydropyridine, yield 86%.
Preparation example 15
O-nitrobenzaldehyde (1mmol) is added in 50mL round-bottomed flask, methyl acetoacetate (2.0mmol), ammonium acetate (1.2mmol), solvent toluene (2mL) and betanaphthol aldehyde schiff bases zirconium perfluoro octyl sulfonic acid complex (X=OSO2C8F17) (0.05mmol) stirs 1h at 120 DEG C.It is spin-dried for solvent after reaction, residue uses CH2Cl2Extraction 3 times is collected solid and is urged Agent is to recycle, combined CH2Cl2Filtrate, revolving, residue separates with silica gel column chromatography, obtains faint yellow solid, and 2, 6- dimethyl -4- (2- nitrobenzophenone) -3,5- dimethoxycarbonyl-Isosorbide-5-Nitrae-dihydropyridine, yield 92%.
In order to further embody the superiority of this method, following catalyst system example as a comparison is selected:
Comparative example 1
Benzaldehyde (1mmol) is added in 50mL round-bottomed flask, ethyl acetoacetate (2.0mmol), ammonium acetate (1.2mmol), solvent THF (2mL) and zirconium chloride (0.05mmol) stir 12h at 80 DEG C.It is spin-dried for solvent after reaction, Residue is separated with silica gel column chromatography, obtains faint yellow solid, 2,6- dimethyl -4- phenyl -3,5- diethyl oxygen carbonyls-Isosorbide-5-Nitrae-two Pyridinium hydroxide, yield 23%.Catalyst cannot reuse.
Comparative example 2
Benzaldehyde (1mmol) is added in 50mL round-bottomed flask, ethyl acetoacetate (2.0mmol), ammonium acetate (1.2mmol), solvent THF (2mL) and bis cyclopentadienyl zirconium dichloride (0.05mmol) stir 12h at 80 DEG C.It is spin-dried for after reaction molten Agent, residue are separated with silica gel column chromatography, obtain faint yellow solid, 2,6- dimethyl -4- phenyl -3,5- diethyl oxygen carbonyl -1, 4- dihydropyridine, yield 41%.Catalyst cannot reuse.
Comparative example 3
Benzaldehyde (1mmol) is added in 50mL round-bottomed flask, ethyl acetoacetate (2.0mmol), ammonium acetate (1.2mmol), solvent THF (2mL) and trifluoromethane sulfonic acid scandium (0.05mmol) stir 12h at 80 DEG C.It is spin-dried for after reaction Solvent, residue are separated with silica gel column chromatography, obtain faint yellow solid, 2,6- dimethyl -4- phenyl -3,5- diethyl oxygen carbonyls - Isosorbide-5-Nitrae-dihydropyridine, yield 65%.Catalyst cannot reuse.
Comparative example 4
Benzaldehyde (1mmol) is added in 50mL round-bottomed flask, ethyl acetoacetate (2.0mmol), ammonium acetate (1.2mmol), solvent THF (2mL) and perfluoro octyl sulfonic acid (0.05mmol) stir 12h at 80 DEG C.It is spin-dried for after reaction molten Agent, residue are separated with silica gel column chromatography, obtain faint yellow solid, 2,6- dimethyl -4- phenyl -3,5- diethyl oxygen carbonyl -1, 4- dihydropyridine, yield 27%.Catalyst cannot reuse.
Comparative example 5
Benzaldehyde (1mmol) is added in 50mL round-bottomed flask, ethyl acetoacetate (2.0mmol), ammonium acetate (1.2mmol), solvent THF (2mL) and betanaphthol aldehyde schiff bases zirconium dichloride (0.05mmol) stir 12h at 80 DEG C.Reaction After be spin-dried for solvent, residue is separated with silica gel column chromatography, obtains faint yellow solid, 2,6- dimethyl -4- phenyl -3,5- bis- Carbethoxyl group-Isosorbide-5-Nitrae-dihydropyridine, yield 46%.Catalyst cannot reuse.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention Protect range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.

Claims (6)

1. a kind of novel ionic betanaphthol aldehyde schiff bases zirconium complex, it is characterised in that:
Cationic betanaphthol aldehyde schiff bases zirconium complex (I), zirconium atom and naphthol novolak schiff base ligand and a hydrone with And an X is coordinated to form cation, another anion X-Ionic bond is formed with the cationic portion of complex;Complex knot Structure formula (I) is as follows:
2. a kind of novel ionic betanaphthol aldehyde schiff bases zirconium complex according to claim 1, it is characterised in that: described X is perfluoro octyl sulfonic acid group OSO2C8F17, pentafluorophenyl group sulfonic acid group OSO2C6F5, perfluoro hexyl sulfonic acid group OSO2C6F13Or Perfluoro butyl sulfonic acid group OSO2C4F9One of.
3. a kind of preparation method of novel ionic betanaphthol aldehyde schiff bases zirconium complex, it is characterised in that:
Betanaphthol aldehyde schiff bases zirconium dichloride is dissolved in solvent, and in N2Under protection, silver salt is added, is protected from light at room temperature 1-4h, filtering are reacted, n-hexane is added in filtrate, until layering, is put into refrigerator freezing for 24 hours, precipitation complex is betanaphthol aldehyde seat Husband's alkali zirconium complex (I).
4. a kind of preparation method of novel ionic betanaphthol aldehyde schiff bases zirconium complex according to claim 3, feature It is: the solvent: tetrahydrofuran, acetone, acetonitrile, methanol or ethyl alcohol;The silver salt are as follows: perfluoro octyl sulfonic acid silver AgOSO2C8F17, pentafluorophenyl group sulfonic acid silver AgOSO2C6F5, perfluoro hexyl sulfonic acid silver AgOSO2C6F13Or perfluoro butyl sulfonic acid silver AgOSO2C4F9One of.
5. a kind of application of novel ionic betanaphthol aldehyde schiff bases zirconium complex, it is characterised in that:
Betanaphthol aldehyde schiff bases zirconium complex (I) can be catalyzed: the Hantzsch reaction of aldehyde, 'beta '-ketoester and ammonium acetate prepares Isosorbide-5-Nitrae-two Pyridinium hydroxide derivative.
6. a kind of application method of novel ionic betanaphthol aldehyde schiff bases zirconium complex, it is characterised in that:
It the use of betanaphthol aldehyde schiff bases zirconium complex (I) is catalyst, with aldehyde, 'beta '-ketoester and ammonium acetate are raw material, are had with common Solvent reacts 1-12h at 50-120 DEG C as reaction dissolvent.After completion of the reaction, solvent is removed, it is dilute that methylene chloride is added It releases, filters, recycle catalyst, filtrate is spin-dried for, and by column chromatography for separation, obtains Isosorbide-5-Nitrae-dihydrogen pyridine derivative;Its structural formula is (II) as follows:
R1For phenyl, p-methylphenyl, p-methoxyphenyl, p-hydroxybenzene, o-fluorophenyl, rubigan, p-bromophenyl, neighbour Nitrobenzophenone, m-nitro base, one of 2- naphthalene, styryl, 2- furfuryl group, ethyl or propyl;R2For methyl or ethyl One of;
The aldehyde be benzaldehyde, p-tolyl aldehyde, P-methoxybenzal-dehyde, parahydroxyben-zaldehyde, o fluorobenzaldehyde, to chlorobenzene In formaldehyde, p-bromobenzaldehyde, o-nitrobenzaldehyde, m-nitrobenzaldehyde, 2- naphthaldehyde, cinnamic acid, furfural, propionic aldehyde or butyraldehyde It is a kind of;
The 'beta '-ketoester is one of methyl acetoacetate or ethyl acetoacetate;
The solvent is one of tetrahydrofuran, acetonitrile, 1,2 dichloroethanes, acetone, ethyl alcohol, toluene;
The dosage of the catalyst is 1.0-10mol%;Catalyst reusable 5 times or more.
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