CN104447810B - Triazole-copper triflate title complex with catalysis 3-methoxyphenylboronic acid and preparation method thereof - Google Patents

Triazole-copper triflate title complex with catalysis 3-methoxyphenylboronic acid and preparation method thereof Download PDF

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CN104447810B
CN104447810B CN201410768183.1A CN201410768183A CN104447810B CN 104447810 B CN104447810 B CN 104447810B CN 201410768183 A CN201410768183 A CN 201410768183A CN 104447810 B CN104447810 B CN 104447810B
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triazole
methoxyphenylboronic acid
copper complex
single crystal
isophthalic
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CN104447810A (en
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王英
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Tianjin Normal University
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    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F1/00Compounds containing elements of Groups 1 or 11 of the Periodic Table
    • C07F1/08Copper compounds
    • 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
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C41/00Preparation of ethers; Preparation of compounds having groups, groups or groups
    • C07C41/01Preparation of ethers
    • C07C41/18Preparation of ethers by reactions not forming ether-oxygen bonds
    • C07C41/30Preparation of ethers by reactions not forming ether-oxygen bonds by increasing the number of carbon atoms, e.g. by oligomerisation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2231/00Catalytic reactions performed with catalysts classified in B01J31/00
    • B01J2231/40Substitution reactions at carbon centres, e.g. C-C or C-X, i.e. carbon-hetero atom, cross-coupling, C-H activation or ring-opening reactions
    • 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
    • B01J2531/10Complexes comprising metals of Group I (IA or IB) as the central metal
    • B01J2531/16Copper

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Abstract

The invention discloses one { [Cu (L)] (CF 3sO 3) 0.33H 2o} (<b>1</bGreatT.Gr eaT.GT) (L=4-(3-(4H-1,2,4-triazole-4-yl) phenyl)-4H-1,2,4-triazole) preparation method and as catalysis 3-methoxyphenylboronic acid linked reaction, there is potential using value.It adopts " hydrothermal method ", i.e. Cu (CF 3sO 3) 2with L 100 oc hydrothermal condition gets off and prepares this title complex.The present invention further discloses copper complex { [Cu (L)] (CF 3sO 3) 0.33H 2o} (<b>1</bGreatT.Gr eaT.GT) (L=4-(3-(4H-1,2,4-triazole-4-yl) phenyl)-4H-1,2,4-triazole) as the application of the coupling reaction catalyst aspect of 3-methoxyphenylboronic acid.

Description

Triazole-copper triflate title complex with catalysis 3-methoxyphenylboronic acid and preparation method thereof
The present invention obtains state natural sciences fund general project (21471113), Tianjin Education Commission funded projects (20140506), Tianjin Normal University's Middl-age and youth faculty Academic innovations advances planning item and Tianjin innovation team of institution of higher education training plan to subsidize (TD12-5038).
Technical field
The invention belongs to Inorganic synthese technical field, relate to copper complex { [Cu (L)] (CF 3sO 3) 0.33H 2the application of the preparation method of O} (1) (L=4-(3-(4H-1,2,4-triazole-4-yl) phenyl)-4H-1,2,4-triazole) and the catalyzer aspect as 3-methoxyphenylboronic acid linked reaction.
Background technology
The research carrying out high selectivity with transition metal complex catalysis is an active field always.Be difficult to the reaction realized with common synthesizing mean, busy use transition metal complex can a step complete in a mild condition.Therefore, adopting metal complex to make catalyzer to develop the organic synthesis of highly selective, high conversion, is very interesting problem.In organic synthesis, general conventional transition metal has nickel, palladium, copper, ruthenium, rhodium, manganese etc., and wherein palladium complex demonstrates diversity catalysis.Palladium catalysed cross coupling reaction kind is a lot, and these reactions all have been widely used in synthesis of natural product, polymkeric substance, functional materials, liquid crystal, drug molecule and bioactive compounds.But palladium catalyst is relatively costly, if can replace expensive palladium catalyst with cheap copper complex, the process of realization response, not only can be cost-saving, and be expected to suitability for industrialized production.
1,2,4-triazole and derivative thereof have the coordination feature of pyrazoles and imidazoles concurrently, are the bridgingligands that coordination ability is stronger, have synthesized at present and have characterized a large amount of monokaryons, multinuclear and multidimensional compound.These parts can with 1, nitrogen-atoms on 2 and metallic ion coordination form N1, N2-bridging pattern, for 4 unsubstituted 1,2,4-triazole derivative is by 2, nitrogen-atoms on 4 forms N2, N4-bridging pattern, this N2, N4-bridging pattern is with the N1 of imidazoles in metalloenzyme, and N3-bridging mode class seemingly.Special purpose for triazole class compounds also shows in the design of molecular device, and the metal complexes that synthesis has different dimension has been the vital step of device.
The present invention selects Cu (CF 3sO 3) 2with 4-(3-(4H-1,2,4-triazole-4-yl) phenyl)-4H-1,2,4-triazole (L) 100 oc hydrothermal condition gets off to prepare copper complex { [Cu (L)] (CF 3sO 3) 0.33H 2o} (1).Catalysis experiments proves, the catalyzer that this title complex can be used as 3-methoxyphenylboronic acid linked reaction is applied.
Summary of the invention
Another object of the present invention is to provide a kind of isophthalic two triazole copper complex { [Cu (L)] (CF 3sO 3) 0.33H 2o} (1) monocrystalline and preparation method thereof.
Current inventor provides following technical scheme for this reason:
Two triazole copper complex { [Cu (L)] (CF of isophthalic 3sO 3) 0.33H 2the structural motif of O} (1) (L=4-(3-(4H-1,2,4-triazole-4-yl) phenyl)-4H-1,2,4-triazole) is as shown in Figure 1:
L=4-(3-(4H-1,2,4-triazole-4-yl) phenyl)-4H-1,2,4-triazole;
The present invention further discloses two triazole copper complex { [Cu (L)] (CF of isophthalic 3sO 3) 0.33H 2o} (1) (L=4-(3-(4H-1,2,4-triazole-4-yl) phenyl)-4H-1,2,4-triazole) monocrystalline, it is characterized in that this single crystal structure adopts APEXIICCD single crystal diffractometer, use through graphite monochromatised Mok alpha-ray (λ=0.71073) be incident radiation, point diffraction is collected with ω-2 θ scan mode, obtain unit cell parameters through least-squares refinement, utilize software to solve single crystal data from difference Fourier electron density map:
The crystallographic data of table 1. title complex 1
Two triazole copper complex { [Cu (L)] (CF of isophthalic of the present invention 3sO 3) 0.33H 2the preparation method of O} (1) (L=4-(3-(4H-1,2,4-triazole-4-yl) phenyl)-4H-1,2,4-triazole) monocrystalline, its feature employing " hydrothermal method ", at CH 3cN and H 2in O, by Cu (CF 3sO 3) 2with L ligand 1 00 oreact under C hydrothermal condition, obtain the yellow rhabdolith of applicable X-ray single crystal diffraction.Wherein CH 3cN and H 2the volume ratio of O is 4:6, Cu (CF 3sO 3) 2be 1:1 with the mol ratio of L;
The more detailed preparation method of the present invention is as follows:
Two triazole copper complex { [Cu (L)] (CF of a kind of isophthalic 3sO 3) 0.33H 2the preparation method of O} (1) (L=4-(3-(4H-1,2,4-triazole-4-yl) phenyl)-4H-1,2,4-triazole) monocrystalline, its feature employing " hydrothermal method ", at CH 3cN and H 2in O, by Cu (CF 3sO 3) 2with L ligand 1 00 oreact under C hydrothermal condition, obtain the yellow rhabdolith of applicable X-ray single crystal diffraction.Wherein CH 3cN and H 2the volume ratio of O is 4:6, Cu (CF 3sO 3) 2be 1:1 with the mol ratio of L;
Solvent of the present invention is mixed solvent, CH 3cN and H 2o.Wherein Cu (CF 3sO 3) 2be 1:1 with the mol ratio of L.
The present invention further discloses copper complex { [Cu (L)] (CF 3sO 3) 0.33H 2o} (1) (L=4-(3-(4H-1,2,4-triazole-4-yl) phenyl)-4H-1,2,4-triazole) can be used as the catalyzer of 3-methoxyphenylboronic acid linked reaction.
Two triazole copper complex { [Cu (L)] (CF of a kind of isophthalic disclosed by the invention 3sO 3) 0.33H 2the advantage and disadvantage that O} (1) (L=4-(3-(4H-1,2,4-triazole-4-yl) phenyl)-4H-1,2,4-triazole) monocrystalline has is:
(1) operation is simple and easy to do.
(2) reaction yield is high, and the purity of products obtained therefrom is high.
(3) { [Cu (L)] (CF prepared by the present invention 3sO 3) 0.33H 2o} (1) (L=4-(3-(4H-1,2,4-triazole-4-yl) phenyl)-4H-1,2,4-triazole) production cost is low, and method is easy, is applicable to scale operation.
Accompanying drawing explanation
Fig. 1: the crystalline structure primitive figure of title complex 1;
Fig. 2: the tomograph of title complex 1;
The nuclear-magnetism figure of Fig. 3: 3,3'-dimethoxy-biphenyl.
Embodiment
Below in conjunction with embodiment, the present invention is described further, and embodiment is only indicative, never means that it limits the scope of the invention by any way.All raw materials are all buy from chemical reagents corporation both domestic and external, through continuation purify but directly use.
Embodiment 1
The preparation of 4-(3-(4H-1,2,4-triazole-4-yl) phenyl)-4H-1,2,4-triazole (L) part
In 50mL tri-mouthfuls of round-bottomed flasks that magneton, reflux exchanger and thermometer are housed, add mphenylenediamine (1mmol) respectively, two formyl hydrazine (2mmol), starts and is stirred in 100 DEG C, reacts 12 hours.After reaction terminates, reaction solution is down to room temperature, separates out and precipitate in a large number, by precipitation water and ethyl alcohol recrystallization, yield 86%.Ultimate analysis C 10h 8n 6theoretical value: C, 56.60; H, 3.80; N, 39.60.Experimental value: C, 56.56; H, 3.75; N, 39.56.Mphenylenediamine, the mol ratio of two formyl hydrazine is 1:2.
Embodiment 2
Cu (CF 3sO 3) 2with 4-(3-(4H-1,2,4-triazole-4-yl) phenyl)-4H-1,2,4-triazole) mol ratio of (L) is 1:1;
L (0.0424g, 0.2mmol), Cu (CF 3sO 3) 2(0.0691g, 0.2mmol), H 2o (6mL), CH 3cN (4mL), hydro-thermal 100 oc is slowly down to room temperature in tri-days afterwards.The yellow rhabdolith that applicable X-ray single crystal diffraction is analyzed is had after driving still.Productive rate: 35% (calculating based on L).Ultimate analysis (C 33h 26cu 3f 9n 18o 10s 3) theoretical value (%): C, 30.67; H, 2.03; N, 19.51.Measured value: C, 30.69; H, 2.06; N, 19.59.
We also attempted other ratios, such as Cu (CF 3sO 3) 2be 2:1 with the mol ratio of L, then the length of no matter hydro-thermal reaction time, all can not get crystalline compound.Therefore Cu (CF 3sO 3) 2be 1:1 with the mol ratio of L be optimum response proportioning.
Embodiment 3
Crystal structure determination adopts APEXIICCD single crystal diffractometer, use through graphite monochromatised Mok alpha-ray (λ=0.71073) be incident radiation, point diffraction is collected with ω-2 θ scan mode, unit cell parameters is obtained through least-squares refinement, software is utilized to solve crystalline structure from difference Fourier electron density map, and through Lorentz lorentz and polarizing effect correction.All H atom are synthesized by difference Fourier and are determined through desirable position calculation.Detailed axonometry data are in table 1.Structural motif is shown in Fig. 1, and the three-dimensional structure of title complex is shown in Fig. 2.
The crystallographic data of table 1. title complex 1
Embodiment 4
The research carrying out high selectivity with transition metal complex catalysis is an active field always.Be difficult to the reaction realized with common synthesizing mean, busy use transition metal complex can a step complete in a mild condition.Therefore, adopting metal complex to make catalyzer to develop the organic synthesis of highly selective, high conversion, is very interesting problem.In organic synthesis, general conventional transition metal has nickel, palladium, copper, ruthenium, rhodium, manganese etc., and wherein palladium complex demonstrates diversity catalysis.Palladium catalysed cross coupling reaction kind is a lot, and these reactions all have been widely used in synthesis of natural product, polymkeric substance, functional materials, liquid crystal, drug molecule and bioactive compounds.But palladium catalyst is relatively costly, if can replace expensive palladium catalyst with cheap copper complex, the process of realization response, not only can be cost-saving, and be expected to suitability for industrialized production.
1,2,4-triazole and derivative thereof have the coordination feature of pyrazoles and imidazoles concurrently, are the bridgingligands that coordination ability is stronger, have synthesized at present and have characterized a large amount of monokaryons, multinuclear and multidimensional compound.These parts can with 1, nitrogen-atoms on 2 and metallic ion coordination form N1, N2-bridging pattern, for 4 unsubstituted 1,2,4-triazole derivative is by 2, nitrogen-atoms on 4 forms N2, N4-bridging pattern, this N2, N4-bridging pattern is with the N1 of imidazoles in metalloenzyme, and N3-bridging mode class seemingly.Special purpose for triazole class compounds also shows in the design of molecular device, and the metal complexes that synthesis has different dimension has been the vital step of device.
The present invention selects Cu (CF 3sO 3) 2with 4-(3-(4H-1,2,4-triazole-4-yl) phenyl)-4H-1,2,4-triazole (L) 100 oc hydrothermal condition gets off to prepare copper complex { [Cu (L)] (CF 3sO 3) 0.33H 2o} (1).Catalysis experiments proves, the catalyzer that this title complex can be used as 3-methoxyphenylboronic acid linked reaction is applied.
1g3-methoxyphenylboronic acid is taken, 0.2gCs in 25mL beaker 2cO 3, 3mLDMF and 0.1g catalyzer (title complex 1), stirred at ambient temperature 1 hour, TLC monitoring (PE:EA=1:1) reacts completely, 10mLCH 2cl 220mL distilled water wash is used again, organic phase sewage MgSO after extracted products 4drying, filter, precipitation, the thick product obtained strips post with sherwood oil, obtains 3,3'-dimethoxy-biphenyl.

Claims (2)

1. the two triazole copper complex monocrystalline of isophthalic is being prepared as the application in the catalyzer of 3-methoxyphenylboronic acid linked reaction, it is characterized in that the two triazole copper complex single crystal structure of this isophthalic adopts APEXIICCD single crystal diffractometer, use through graphite monochromatised Mok alpha-ray, λ=0.71073 is incident radiation, point diffraction is collected with ω-2 θ scan mode, obtain unit cell parameters through least-squares refinement, utilize software to solve single crystal data from difference Fourier electron density map:
The molecular formula of the two triazole copper complex monocrystalline of described isophthalic is: [Cu (L)] (CF 3sO 3) 0.33H 2o, wherein L=4-(3-(4H-1,2,4-triazole-4-yl) phenyl)-4H-1,2,4-triazole;
L。
2. application according to claim 1, the method wherein preparing the coupling of 3-methoxyphenylboronic acid is as follows:
3-methoxyphenylboronic acid 3,3'-dimethoxy-biphenyl
1g3-methoxyphenylboronic acid is taken, 0.2gCs in 25mL beaker 2cO 3, the catalyst complexes monocrystalline of 3mLDMF and 0.1g, stirred at ambient temperature 1 hour, 10mLCH 2cl 220mL distilled water wash is used again, the anhydrous MgSO of organic phase after extracted products 4drying, filter, precipitation, the thick product obtained strips post with sherwood oil, obtains 3,3'-dimethoxy-biphenyl.
CN201410768183.1A 2014-12-15 2014-12-15 Triazole-copper triflate title complex with catalysis 3-methoxyphenylboronic acid and preparation method thereof Expired - Fee Related CN104447810B (en)

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