434 results about "Bipyridine" patented technology

The invention provides a substituted amino bipyridine derivative as well as a preparation method and application thereof, the structure of the substituted amino bipyridine derivative is as shown in formula I. In the formula, R1, R2, R3 and R4 are independently selected from any one of H, C1-C6 alkyl, C2-C6 alkenyl, C2-C20 alkynyl, C3-C6 cycloalkyl, C5-C20 aryl or C5-C20 heterocyclic radical; when R1, R2, R3 and R4 are not methyl, no more than one of R1, R2, R3 and R4 is H; and when any one of R1, R2, R3 and R4 is methyl, the rest groups are independently selected from H or methyl. When the substituted amino dipyridyl derivative provided by the invention is used as a blue dye, the dyed blue dye is bright in color, deep in dyeing and comprehensive in dyeing fastness; the preparation process is simple, convenient to purify, safe, simple, convenient and energy-saving, the product quality is stable, the reproducibility is good, the yield is high, and the method is suitable for industrial production.

The invention relates to a preparation method of a high-lithium-affinity vinylene covalent organic framework material serving as a lithium metal negative electrode interface protective layer. The method comprises the following steps: firstly, by utilizing a simple hydrothermal synthesis method, taking 1, 3, 5-trimethyl-2, 4, 6-triazine (TMT) and 2, 2-bipyridine-5, 5-diformaldehyde (BPY) as monomers, and carrying out Aldol condensation reaction to synthesize a covalent organic framework material connected by a vinylene bond, which is named as viCOF-bpy; the electrochemical performance of the material is verified by modifying the surface of a copper pole piece with the viCOF-bpy material and then assembling a battery. The lithium-loving group on the material skeleton can promote the migration of lithium ions, and the vinylidene has very strong chemical stability, so that the electrochemical performance of the lithium metal battery can be effectively improved.

4, 4 '-bipyridine (Bpy), 2, 5-thiophenedicarboxylic acid (Tdc), FeCl3. 6H2O, NiCl2. 6H2O, urea and tetrabutylammonium bromide are used as raw materials, a simple hydrothermal-calcination method is adopted to prepare the Fe2O3-coated Ni-MOF composite nanomaterial catalyst, X-ray diffraction (XRD), a scanning electron microscope (SEM) and a N2 adsorption and desorption technology are adopted to characterize a prepared sample, and the electro-catalytic oxygen evolution reaction (OER) activity of the Fe2O3-coated Ni-MOF composite nanomaterial catalyst is tested. Results show that compared with a single component, the activity of the composite nano-material catalyst is greatly improved, especially the composition-optimized Fe2O3-coated Ni-MOF-1 composite nano-material catalyst shows the highest catalytic activity, the composite nano-material catalyst catalyzes OER in 1M KOH, and the overpotential (eta 10) is only 330mV when the current density is 10mA / cm < 2 > and is close to the overpotential 291mV of a noble metal catalyst RuO2.

The invention relates to a composite resin material for 3D printing and a preparation method thereof. The material is prepared from the following raw materials in parts by weight: 60-90 parts of polylactic acid, 5-15 parts of a toughening agent, 5-15 parts of a flame retardant, 5-10 parts of modified carbon nanotubes, 0.3-1 part of an anti-hydrolysis agent and 0.3-0.5 part of a lubricant. The flame retardant is added, a phosphate structure, a benzene ring and a hindered phenol structure are introduced into 5, 5 '-dibromo-[2, 2'-bipyridyl]-3, 3 '-diamine, and efficient flame retardance is achieved and the anti-aging performance of the composite resin material is enhanced through multiple synergistic effects of hindered phenol-phosphorus heterocycle-bipyridyl. The modified carbon nanotube is added as a reinforcing agent, so that the mechanical property of the composite resin material is remarkably improved, and the composite resin material is endowed with antibacterial property.

The invention discloses a method for preparing a single-walled carbon nanotube, and belongs to the technical field of single-walled carbon nanotubes. When the single-walled carbon nanotube is prepared, the single-walled carbon nanotube is grown by using a chemical vapor deposition method; then, the grown single-walled carbon nanotubes are subjected to acid pickling, then, the carbon tubes are sorted and purified by adopting a polymer dispersant, and finally, the polymer dispersant is removed to obtain the single-walled carbon nanotubes; the polymer dispersant disclosed by the invention is obtained by reacting an aldehyde-terminated fluorenyl surfactant with diamino dipyridyl; wherein the aldehyde-terminated fluorenyl surfactant is obtained by polymerizing 9, 9-di-n-octylfluorene-2, 7-diboric acid di-pinacol ester and quaternary ammonium salt containing 2, 7-dibromofluorene, and then reacting with 5-formyl-2-thiopheneboronic acid pinacol ester for end capping; the prepared single-walled carbon nanotube is relatively high in purity and relatively high in finished product conversion rate.

The invention discloses a multi-metal active site covalent organic framework material, a preparation method thereof and application of the multi-metal active site covalent organic framework material in activating PMS to degrade pollutants, the multi-metal active site covalent organic framework material comprises metalloporphyrin and bipyridine groups, when porphyrin loads metal, metal atoms are connected through coordination of two nitrogen sources of bipyridine, the metal atoms are connected through coordination of two nitrogen sources of bipyridine, and therefore the multi-metal active site covalent organic framework material is obtained. Multi-metal active sites are formed; the metal active sites are increased, and the distance between metals is adjusted, so that the framework material shows excellent catalytic activity. The covalent organic framework material is prepared through a solvothermal reaction, the covalent organic framework material continues to react with a metal precursor to load metal, the preparation method is simple, a complex reaction process and harsh reaction conditions are not needed, and large-scale preparation can be achieved.

The invention relates to the technical field of nuclear waste treatment, in particular to a cucurbituril-based supramolecular organic framework material as well as a preparation method and application thereof. A construction unit of the supramolecular organic framework material is constructed by taking cucurbit [8] uril (CB8) as a subject and terephthalyl viologen ligand 1, 1 ''-(1, 4-phenylene) bis ([4, 4 '-bipyridyl]-1-onium) salt (PBV. 2X) as an object through the bonding effect of the subject and the object; in the molecular structure of the supramolecular organic framework material, the construction units are staggered and stacked in parallel in the space, and NO3 <-> is located at the gap of the adjacent CB8. The supramolecular organic framework material disclosed by the invention has high structural stability and cationic framework characteristics, and a rigid framework and a pyridine conjugated system of CB8 endow the material with excellent chemical / irradiation stability, so that the material shows ultrahigh removal rate on ReO4 <-> / TcO4 <-> in extreme environments (strong acid, strong alkali and high irradiation).

The invention belongs to the technical field of preparation of transition metal organic photocatalysts, and particularly relates to design and a preparation method of a carbazole terpyridyl nickel catalyst. The invention aims to design and synthesize a carbazole terpyridyl nickel catalyst with light / nickel synergistic catalytic activity. The preparation method comprises the following specific synthesis steps: reacting different types of alpha-pyridone pyridinium and alpha, beta-unsaturated ketone in methanol, and carrying out suction filtration, washing, drying and other operations to obtain the corresponding carbazole terpyridyl ligand. The carbazole terpyridyl ligand and anhydrous nickel bromide are subjected to a heating reflux reaction in a tetrahydrofuran solution, and the corresponding carbazole terpyridyl nickel catalyst is obtained through methanol washing, suction filtration, drying and other operations. The terpyridyl nickel catalyst has high catalytic activity in a C-N, C-O and C-S coupling reaction promoted by visible light.

The invention provides polyurethane serving as a hot melt adhesive and alcosol water as well as a preparation method and application thereof, and relates to the technical field of polyurethane binders. The preparation method comprises the following steps: mixing polydihydric alcohol, diisocyanate, an organic solvent and a catalyst to carry out polymerization reaction, and then mixing with chain extenders (dihydric alcohol containing 2-ureido-4-pyrimidone groups and dihydric alcohol containing bipyridine groups) to carry out chain extension reaction to obtain polyurethane. According to the invention, 2-ureido-4-pyrimidone and dipyridyl groups are introduced into a macromolecular chain of polyurethane, and a formed hydrogen bond can provide strong intermolecular cohesion in the adhesive, so that the strength of the material is improved, and the adhesive force with the surface of a base material can be enhanced; the bipyridine group can form a chelating structure with metal ions on the surface of a metal substrate, so that the bonding strength with the metal substrate is enhanced. According to the invention, a single polyurethane material has dual functions of hot-melt bonding and normal-temperature green solvent bonding, and has excellent bonding performance and milder bonding conditions.

The invention discloses a covalent organic framework material, a preparation method thereof and application of the covalent organic framework material in degrading new pollutants in a water body by activating PMS, the covalent organic framework material contains a pyrene group and a bipyridine linking group, has a flat molecular structure and a laminated nanosheet morphology, and has a regular pore structure; the catalyst has a good crystal structure, reliable mechanical strength and excellent thermal chemical stability and catalytic activity, and is an excellent catalyst; and the subsequent modification and metal atom loading sites exist, so that the possibility is provided for further improving the catalytic activity. The bottleneck problems of low crystallinity and poor stability in the traditional preparation process are solved through solvothermal reaction preparation, use of a mixed solvent system and introduction of a weakly acidic solvent, the preparation method is simple, and large-scale production can be realized. The activated PMS degrades new pollutants in the water body; under the condition that the reaction time is 45 minutes, the degradation rate of the BPA can reach 100%.

The invention is suitable for the field of electrochemical luminescence detection equipment, and provides a dispersion device suitable for electrochemical luminescence detection, which comprises a monochromator body, the monochromator body is composed of a monochromator housing, a reflector assembly, a grating assembly, a collimating mirror assembly, a focus lens assembly, a slit, a flange snap ring and a flange; an M-shaped light path is arranged in the monochromator body, and a slit, a reflector assembly, a collimating mirror M1 in the collimating mirror assembly, a customized blazed grating G1 in the grating assembly and a focusing mirror M2 in the focusing mirror assembly are sequentially arranged in the light propagation direction. The customized blazed grating G1 is designed by adopting specific parameters including the scribed line density, the blazed wavelength, the notch groove depth and the groove width ratio, and primary light energy enhancement and secondary light intensity suppression can be realized; according to the invention, an optical filter is not needed, the diffraction efficiency of a monochromator is improved to 60-86%, the intensity ratio of luminol secondary light to primary light is less than or equal to 1.6%, the detection limit of ruthenium bipyridine is reduced from 100pmol / L to 50pmol / L, and the electrochemical luminescence detection device is suitable for various electrochemical luminescence detection scenes.

The invention belongs to the field of functional nano materials and optical imaging, and particularly relates to a gold nanocluster and a preparation method and application thereof. The surface of the gold nanocluster contains a sulfydryl ligand A and a sulfydryl ligand B, the sulfydryl ligand A is ATT, and the sulfydryl ligand B is a sulfydryl ligand containing arginine; fluorescence quantum efficiency and electron transfer efficiency are synergistically enhanced on the basis of interaction of hydrogen bonds in the gold nanoclusters, the ultra-small luminous gold nanoclusters protected by double ligands are synthesized, the electrochemical luminescence quantum efficiency of the ultra-small luminous gold nanoclusters is up to 13.0% and is 4.2 times of that of a standard compound terpyridyl ruthenium in the field of electrochemical luminescence, and the ultra-small luminous gold nanoclusters are high in electrochemical luminescence quantum efficiency. An electrochemical luminescence transition area can be narrowed by 10 times compared with a terpyridyl ruthenium imaging system, and zero-thickness ECL luminescent layer cell high-resolution imaging can be realized; good application prospects are realized in the fields of fluorescence detection, electrochemical luminescence detection, fluorescence imaging, electrochemical luminescence imaging and the like.

The application discloses a kind of metal organic framework materials and preparation method and application thereof, belong to chemical separation technical field.The preparation method of metal organic framework material provided in the application includes the following steps: with water and methanol as solvent, with 4,4 '-dipyridyl and malic acid as organic ligand, zinc source is added, and reaction is carried out, in the reaction process, oxygen atom on malic acid is connected with zinc ion on zinc source to form 2D layered network structure, 2D layered network structure is bridged by 4,4 '-dipyridyl to form 3D rigid network framework, after reaction, metal organic framework material is prepared.The metal organic framework prepared by the application has super strong capture effect and large storage space for acetylene molecules, and also has excellent separation effect on acetylene carbon dioxide mixed system, to achieve the purpose of high-purity, high-yield acetylene purification in acetylene carbon dioxide mixture.

The invention discloses a preparation method of a modified lithium titanate battery negative electrode material. The preparation method comprises the following steps: S1, weighing zirconium chloride and benzoic acid, dissolving the zirconium chloride and benzoic acid in N, N-dimethylformamide, and mixing to obtain a first solution; s2, weighing 2, 2 '-bipyridine-5, 5'-dicarboxylic acid formic acid, dissolving the 2, 2 '-bipyridine-5, 5'-dicarboxylic acid formic acid into N, N-dimethylformamide, and mixing to obtain a second solution; s3, adding the first solution into the second solution, uniformly mixing, and reacting to obtain a third solution; s4, the third solution is subjected to suction filtration, washing and drying, and powdery UiO-bpy is obtained; s5, weighing lithium titanate powder and UiO-bpy, dissolving the weighed lithium titanate powder and UiO-bpy in ethanol to obtain a fourth solution, and drying the fourth solution to obtain an intermediate sample; and S6, heating the intermediate sample in a tubular furnace under the protection of Ar atmosphere, and cooling to obtain the battery negative electrode material UiO-bpy (LTO), thereby solving the problems of low electronic conductivity, poor rate capability and insufficient energy density of the lithium titanate (LTO) negative electrode material.

To provide a method for producing a bipyridine derivative, which enables obtaining a high-purity target compound (including an intermediate) without performing purification by column chromatography, provides a high yield, and is industrially advantageous.SOLUTION: A method for producing a bipyridine derivative represented by formula (3) comprises a step of obtaining a metal complex as an intermediate. In the formula, each of R13 to R20 is a hydrogen atom or a substituent; a plurality of R13 to R20 may be the same or different; at least one of six R14 to R16 is a substituent; at least one of two R17 is a hydrogen atom; any two substituents of R13 to R20 may be linked to each other to form a ring; R17 to R20 may contain a pyrrolyl group which may contain a halogen atom or a substituent; and at least one of R14 to R16 may have a halogen atom or a substituent.SELECTED DRAWING: None

The application belongs to the field of organic synthesis, and particularly relates to a synthesis method of 2-(3,3-dimethylbutyl)pyridine. 2-vinylpyridine, brominated tertiary butane, a mixed solution of dimethyl ether and isopropyl ether as a reaction system solvent, nickel iodide as a nickel salt, bipyridine as a ligand, dicyclohexylmethylamine as a base in the system, 2,6-dimethyl-3,5-diethyl-1,4-dihydropyridine as a reducing agent, a photocatalyst 2,4,5,6-tetrakis(9 ‑ Carbazole) - m-phenylenedinitrile, under the condition of room temperature and nitrogen atmosphere, a reduction cross-coupling reaction is used to synthesize 2-(3,3-dimethylbutyl)pyridine. The application uses inexpensive nickel metal as a catalyst, constructs a cross-coupling reaction of carbon-carbon bond, and has the advantages of mild reaction condition, high economy and the like.

A 1,10-phenanthroline derivative or a 2,2′-bipyridine derivative having different substituents at symmetrical positions is provided. An organic compound represented by General Formula (G1) or General Formula (G2) below is provided. In General Formula (G1) or (G2) below, any one of X2 to X5 or any one of X6 to X9 represents a halogen or a trifluoromethanesulfonyl group, and the others represent hydrogens. Any one of R2 to R5 or any one of R6 to R9 represents an aliphatic cyclic amino group. Note that a carbon to which the halogen or the trifluoromethanesulfonyl group is bonded and a carbon to which the aliphatic cyclic amino group is bonded are at line-symmetrical positions in a main skeleton (a 1,10-phenanthroline skeleton or a 2,2′-bipyridine skeleton).

The present application relates to the field of analytical chemistry, in particular to a method for detecting ten tobacco alkaloids in soil, which uses sodium hydroxide solution and acetonitrile to extract alkaloids in a soil sample, and uses ultra-high performance liquid chromatography-triple quadrupole mass spectrometry to analyze and detect nicotine, nornicotine, myosmine, pseudotropine, anatabine, anabasine, 2,3'-bipyridine, noranatabine, N-methyl pseudotropine and nornicotine, and uses an internal standard method for quantitative analysis. The present application uses sodium hydroxide solution as an alkaloid eluent and acetonitrile as an extractant, which reduces the amount of solvent used, optimizes the operation process, uses sodium chloride to separate the organic phase and the aqueous phase, improves the sample pretreatment efficiency, uses ultra-high performance liquid chromatography-triple quadrupole mass spectrometry to target analysis of 10 tobacco alkaloids, greatly improves the detection sensitivity, and has strong quantitative ability in targeted analysis.

The application discloses an 8-hydroxyquinoline anticancer zinc (II) complex and a synthesis method and application thereof. The 8-hydroxyquinoline anticancer zinc (II) complex is synthesized by taking 5,7-diiodo-8-hydroxyquinoline, 5,7-dichloro-8-hydroxyquinoline, 5-chloro-7-iodo-8-hydroxyquinoline, 5,7-dibromo-8-hydroxyquinoline and 5-chloro-8-hydroxyquinoline as a first ligand and taking 4,4'-dimethoxy-2,2'-bipyridine, 4,4-di-tert-butyl-2,2-bipyridine, 5,5'-dimethyl-2,2-bipyridine, 2,2-bipyridine and 4,4'-dimethyl-2,2'-bipyridine as auxiliary ligands. The 8-hydroxyquinoline anticancer zinc (II) complex has good inhibiting effect on SK-OV-3CR cells of an ovarian cancer drug-resistant strain, is higher than that of cisplatin drugs, overcomes drug resistance of clinical drugs, has potential medicinal value and can be used for preparation of various antitumor drugs.

The invention discloses a preparation method of a portable paper-based ratiometric fluorescence sensor APBA-CsPbBr3 at-UiO-66 / Ru, which comprises the following steps: 1, adding lead bromide and cesium bromide into N, N-dimethylformamide, then adding 5-bromovaleric acid and an oleylamine ligand, and stirring; 2, perfluorooctyltriethoxysilane is added, and a precursor solution is obtained; 3, adding zirconium chloride and terephthalic acid into N, N-dimethylformamide to obtain a homogeneous solution; 4, after heating, UiO-66 is obtained; 5, stirring the precursor solution, APBA, UiO-66 and tris (2, 2-dipyridyl) ruthenium chloride hexahydrate to obtain a composite material; and 6, dropwise adding the composite material solution into the filter paper. The APBA modified material is adopted as a recognition unit, the APBA modified material and the paper base construct a fluorescence sensing platform, visual quantitative analysis of oxytetracycline in water is achieved, and the device is convenient to carry, low in detection limit, high in anti-interference performance, easy and convenient to operate and suitable for on-site rapid detection of oxytetracycline.

A curcumin nanococrystal composition including curcumin, a coformer, and a stabilizer. The coformer may include at least one of 3,5-dinitrobenzoicacid, gentisic acid, phloroglucinol, 4,4-bipyridine, tartaric acid, citric acid, and gallic acid. The curcumin nanococrystal composition has a particle size less than 10 nm, and the curcumin has a water-solubility between 5 mg / ml and 20 mg / ml.

The application belongs to the technical field of nanometer material preparation, and discloses a regulation method for synthesizing copper coordination polymers with different dimensions. The method is to obtain copper coordination polymers with different dimensional morphologies under room temperature conditions by controlling the reaction sequence of copper ion solution, uniform benzenetricarboxylic acid and 4,4-dipyridine and the molar ratio of uniform benzenetricarboxylic acid and 4,4-dipyridine. The synthesis process is simple, the cost is low, the dimension of the morphology is adjustable, large-scale industrial production is possible, and good economic benefits and environmental benefits are achieved.

The invention relates to the technical field of DNA intercalating agents, in particular to a near-infrared luminous ruthenium (II) complex, a preparation method thereof and application of the complex as a DNA intercalating agent. The preparation method comprises the following steps: firstly, preparing a precursor 4 '-(1H-benzimidazole-2-yl)-2, 2': 6 ', 2' '-terpyridyl; then, preparing a target precursor, namely, 2-(4-(anthracene-10-yl)-6-(pyrazine-2-yl) pyridine-2-yl) pyrazine as a ligand; and finally, synthesizing a complex [Ru (An-di (2-Pz) Py) (Bitpy)]. The complex is inserted into a DNA base pair as an intercalating agent, has very strong interaction with DNA, and provides basic research for researching the interaction mode of the ruthenium (II) polypyridine complex of the tridentate ligand and DNA and taking the ruthenium (II) polypyridine complex as a diagnosis and treatment reagent.

The present application relates to a kind of catalyst composition and its application in catalytic preparation optically active secondary alcohol, the catalyst composition includes chiral ionic bridged aryloxyalkane rare earth complex and additive, the additive is selected from one or more of pyrimidine, N,N-dicyclohexylmethylamine, 4,4'-dipyridyl.The above-mentioned catalyst composition can be used for synergistically catalyzing asymmetric borohydration of chalcone and its derivatives with pinacol borane, and show high catalytic activity and high enantioselectivity, product yield is as high as 99%, ee value can reach 84%, provide a reliable new way for the efficient, high selective synthesis of optically active secondary alcohol.

This invention discloses a novel chiral bipyridine ligand, its synthesis method, and its application. The novel chiral bipyridine ligand is selected from compounds with the following structures: The chiral ligand of this invention has been successfully applied in the copper-catalyzed asymmetric ring-opening / cross-coupling reaction of cyclic diaryl iodine and secondary amine, yielding the product with excellent yield and ee value.

The invention belongs to the technical field of oil exploitation, and particularly relates to a clay stabilizer for an oil field as well as a preparation method and application thereof. The preparation method comprises the following steps: adding 1, 1 '-bis (4-aminophenyl)-[4, 4'-dipyridyl]-1, 1 '-ammonium dichloride, DMF (Dimethyl Formamide), triethylamine and (3-chloropropyl)-trimethyl ammonium chloride into a reactor, and carrying out a first heat preservation reaction; adding chloroalkane into the reactor, and carrying out a second heat preservation reaction; adding diacyl chloride into the reactor, and carrying out a third heat preservation reaction; and carrying out reduced pressure distillation to remove DMF to obtain a clay stabilizer crude product, adding water and ethyl acetate, fully mixing, separating out ethyl acetate, and carrying out reduced pressure distillation to obtain the clay stabilizer. The clay stabilizer has the advantages of high anti-swelling rate and washing resistance, the anti-swelling rate reaches 97% or above, and the washing anti-swelling rate reaches 93.5% or above.

The invention relates to a viologen derivative electrolyte solution with an electrochromic characteristic and a preparation method and application thereof. The electrolyte solution comprises a viologen derivative and ascorbic acid, the viologen derivative is selected from 1-butyl-4, 4 '-dipyridyl or 1-butyl-1'-(2-propenyl)-4, 4 '-dipyridyl, and the viologen derivative is selected from 1-butyl-4, 4'-dipyridyl or 1-butyl-1 '-( The obtained electrolyte solution can be used for preparing an electrochromic device. Compared with the prior art, the obtained electrochromic device based on the viologen derivative electrolyte can realize color conversion from colorless or brown to purple black under relatively small voltage, and has relatively large light modulation amplitude and relatively high response speed.

The invention discloses a mitochondrial targeting and apoptosis-inducing photosensitive iridium complex and a preparation method thereof, and particularly discloses a 2, 2 '-bipyridine compound, a cyclometalated iridium complex using the compound as a ligand, a preparation method and application of the 2, 2'-bipyridine compound as an antitumor drug. The cyclometalated iridium complex provided by the invention takes a 2, 2 '-bipyridine compound as a ligand, can selectively induce tumor cell apoptosis under an illumination condition, can be used for preparing antitumor drugs, and has a great potential value in the field of photodynamic treatment of tumors.

The present invention refers to compounds of formula (I). The present invention also relates to compounds of formula (I) for use as G Protein coupled Receptor 139 (GPR139) antagonists in methods of medical treatment of e.g. depression, Alzheimer's disease, schizophrenia, drug addiction, sleep disorders, pain, and attention deficit hyperactivity disorder. Exemplary compounds are e.g. 3-((1H-pyrazol-4-yl)methyl)-6′-(phenyl)-2H-(1,2′-bipyridin)-2-one derivatives and related compounds. The present description discloses the synthesis and characterisation of exemplary compounds, pharmacological data thereof, as well as exemplary tablet formulations comprising the compounds of the invention (e.g. page 83 to page 110; examples 1 to 33; reference example 1; test examples 1 and 2; tables 1 to 4).

The present disclosure relates to a 2-substituted imidazolidine derivative containing an aryl bipyridyloxy structure, and a preparation method and use thereof, which is obtained by the reaction of 2-substituted imidazolidine and aryl bipyridyloxy compound. The 2-substituted imidazolidine derivative containing an aryl bipyridyloxy structure has a good insecticidal effect on harmful insects, and the compound can be used to prepare insecticides in the fields of agriculture, horticulture, etc.