54 results about "Benzodifuroxan" patented technology

The invention discloses a benzodifuran conjugated polymer material and a preparation method and application thereof. The structural formula of the polymer is shown by a formula I, wherein A1, A2, R1 and R2 separately represent hydrogen, alkyl group with 1-30 carbon atoms, alkoxyl group with 1-30 carbon atoms, cyano group, nitro group, carbonyl group, ester group, aryl group, aralkyl group, halogen, haloalkyl, heteroalkyl, alkenyl, and aryl or conjugation unit substituted by a substituent group containing single bond, double bond, triple bond or the combination thereof; and Ar is selected fromthe groups substituted or unsubstituted: vinylidene, ethynylene, monocycle arylene, bicyclo-arylene, arylene with three or more rings, monocyclic heteroarylene, bicyclo-heteroarylene, heteroarylene with three or more rings and 1-6 of the groups condensed or connected. The polymer material disclosed by the invention can be applied to the photoelectric field such as organic solar cells and high-shift field effect transistors. The formula I is shown in the specification.

The invention relates to a semiconductor conjugated polymer and a preparation method thereof. The invention discloses a solution-processable polymer semiconductor material and particularly relates to a semiconductor conjugated polymer based on two-dimensional conjugated dibenzothiophene and (2-oxyindole-3-subunit)dibenzofuran-diketone and preparation thereof. The synthesized semiconductor conjugated polymer has wide absorption peak which covers visible light, even extends to a near infrared region; in addition, the synthesized semiconductor conjugated polymer has low lowest unoccupied molecular orbital (LUMO) energy level and can replace fullerene derivative (PCBM) to serve as a photovoltaic receptor material applied to the organic photovoltaic field. The introduced side chain serves as a solubilized alkyl chain. The semiconductor conjugated polymer prepared by the method can be subjected to solution processing, and has a certain application prospect in the organic photovoltaic field.

The invention discloses a polymer semiconductor material capable of performing solution processing, and in particular relates to a semiconductor conjugated polymer based on (thienyl) diketo-pyrrolo-pyrrole and (2-oxyindole-3-subunit) benzodifuran-diketone and a preparation method of the semiconductor conjugated polymer. The synthesized novel semiconductor conjugated polymer disclosed by the invention has a wide absorption peak, can cover visible light, even can extend to a near-infrared area, also has a low LUMO energy level, and can be used for replacing PCBM to be applied in photovoltaic receptor material application and organic photovoltaic fields. By adopting an introduced side chain as a solubilized alkyl chain, the prepared conjugated semiconductor polymer disclosed by the invention can be subjected to solution processing treatment, and has a certain application prospect in organic thin-film transistor and organic photovoltaic fields.

The invention discloses a new green synthesizing process for a ketocoumaran compound. The synthesizing process comprises the following steps: in the absence of a solvent, performing condensation reaction of a mandelic acid compound and hydroquinol under the action of a little amount of acid catalyst to obtain a full condensed intermediate, wherein the acid catalyst is selected from one of 10 to 37 percent concentrated hydrochloric acid, 60 to 98 percent concentrated sulfuric acid, fuming sulfuric acid, 80 to 98 percent phosphoric acid, polyphosphoric acid, p-toluenesulfonic acid, trifloromethanesulfonic acid, benzoic acid, ammonium acetate, ammonium chloride, KF, TiC14, NiCl2, CuSO4, Cu(OAc)2, ZnCl2, AlCl3, Fe(NO3)3, FeCl3 and SnCl2; and performing oxidation reaction of full condensed intermediate under the action of an oxidant to obtain a final product ketocoumaran compound. The synthesizing process of the invention is simple, and has low energy consumption and little environmental pollution.

Colorants comprising a chromophore having two methine moieties attached to a benzodifuranone backbone, wherein said moieties optionally have at least one poly(oxyalkylene) chain, preferably at least two such chains attached thereto are provided. Such colorants exhibit excellent thermal stability, effective colorations, excellent low extraction rates, and effective lightfastness levels, particularly when incorporated within certain media and / or on the surface of certain substrates, particularly polyesters. The optional poly(oxyalkylene) chains also increase the solubility in different solvents or resins thereby permitting the introduction of such excellent coloring chromophores within diverse media and / or on diverse substrates as well as provides a liquid colorant which facilitates handling. Compositions and articles comprising such colorants are provided as are methods for producing such inventive colorants.

The invention discloses a two-dimensional conjugated dibenzofuran conjugated polymer photoelectric material and a preparation method and application thereof. The polymer has a structural formula as shown in formula I, wherein A1, A2, R1 and R2 independently represent any one of the following groups: hydrogen, C1-C30 alkyl group, C1-C30 alkoxy group, cyan group, nitro group, ester group, aryl group, aralkyl group, halogen, alkylogen group, heteralkyl group, alkenyl group, and aryl group substituted by a substituent of a single bond, a double bond, a triple bond or combination thereof; Ar1, Ar2 and Ar independently represent any one of the following unsubstituted groups or groups containing a substituent: vinylidene group, ethynylene group, single ring arylene group, double ring arylene group, arylene group containing at least three rings, single ring heteroarylene group, double ring heteroarylene group, and conjugated units of heteroarylene group containing at least three rings, and n is a natural number between 5 and 500. The polymer material disclosed by the invention can be applied in the photoelectric field such as organic solar batteries and the high-mobility field effect tube field. (Formula I).

The invention relates to a liquid crystal composition comprising dibenzo-difurans and application of the liquid crystal composition. The liquid crystal composition is prepared from one or more of compounds represented by various generation formulas I; in the general formula I, R1 and R2 are alkyl or alkoxy of H, F, Cl, CN, and C1 to C12 and alkenyl or alkenyloxy of C2 to C12; Z1 and Z2 are one ofsingle-bond or group-CH2CH2-, carbon triple bond, -CH=CH-, -O-, -CF2-CF2-, -CF2-CH2-, -CH2-CF2-, -CF=CF-, -CH2-, -(CH2)3-, -(CH2)4-, -CH2O-, -OCH2-, -CF2O, and -CH2O-; a loop A1 and a loop A2 are single bond or cyclohexane and the like; and m and n are respectively 0, 1 and 2, and the sum of m and n is less than or equal to 2. The liquid crystal composition has the performances of extremely high polarity, low viscosity, high response and the like and is suitable for a display device in VA, ECB, PALC, FFS or IPS modes. The formula is shown in the description.

A series of derivative materials with the main chain containing benzodifuran (BDF) units are prepared, and a BDF polymer derivative material is obtained through connecting the BDF units with another aromatic ring, an aromatic heterocyclic ring or their derivatives by C-C single bonds via a Stille coupling polymerization method. The series of polymers have a good photoelectric conversion function when they are applied to solar batteries. A concrete application process comprises the following steps: mixing the polymer material with a C60 or C70 acceptor, coating on ITO conductive glass to prepare a semi-transparent film, and vapor-plating a metal electrode on the polymer in a vacuum vapor plating manner, and preparing a polymer solar battery device.

Colorants comprising a chromophore having two methine moieties attached to a benzodifuranone backbone, wherein said moieties optionally have at least one poly(oxyalkylene) chain, preferably at least two such chains attached thereto are provided. Such colorants exhibit excellent thermal stability, effective colorations, excellent low extraction rates, and effective lightfastness levels, particularly when incorporated within certain media and / or on the surface of certain substrates, particularly polyesters. The optional poly(oxyalkylene) chains also increase the solubility in different solvents or resins thereby permitting the introduction of such excellent coloring chromophores within diverse media and / or on diverse substrates as well as provides a liquid colorant which facilitates handling. Compositions and articles comprising such colorants are provided as are methods for producing such inventive colorants.

The present invention relates to a preparation process of disperse red dyes and its product. In particular, it relates to a synthesis process of benzodifuran-based disperse red dyes by adopting phase transfer catalysis carbonyl addition process and its prepared product. Said product has high molar extinction coefficient, strong color fastness of light and washing, strong wet-fastness and brilliance colored light, etc.

The invention discloses a two-dimensional conjugated BDF organic micro-molecular photovoltaic material, and a preparation method and an application thereof. Two-dimensional conjugated BDF organic micro-molecules with the structure represented by formula (I) are obtained by connecting a thiophene conjugate side chain-containing benzo[1,2-b;3,4-b]difuran (BDF) unit with another aryl heterocycle through a Stille coupling technology. The organic micro-molecular photovoltaic material has wide visible region absorption, suitable HOMO and LUMO energy levels and narrow band gap. Organic solar cells are produced by using the organic molecules as an electron donor and PC61BM as an electron receptor, the maximum energy conversion efficiency of the organic solar cells reaches up to 3.7%, and the organic solar cells have a good photoelectric conversion efficiency.

The present invention provides benzodifuran imidazoline derivatives and benzofuran imidazoline derivatives for lowering intraocular pressure and providing ocular neuroprotection.

The invention discloses a rigid conjugated polymer based on benzodifurandione and derivatives thereof as well as preparation and application of the rigid conjugated polymer. The rigid conjugated polymer is formed by polymerizing benzodifurandione derivatives and aromatic system monomers containing two isatin or derivative fragments thereof through aldol condensation reaction, and the preparation method is low in price, green and efficient; the benzodifurandione and the aromatic skeleton take carbon-carbon double bonds as bridges, so that the energy level of the lowest unoccupied orbit of the polymer and the characteristic of energy disorder are effectively reduced, and the intra-chain transmission of carriers, the delocalized length of polarons and the interaction between polymer chains are enhanced; the electron mobility, the conductivity and the air stability of the organic electronics material are obviously improved, and the material can be widely applied to the field of organic electronics, including organic solar cells, organic light emitting diodes, organic field effect transistors, organic thermoelectricity and the like.

The present application relates to a process of colour neutralizing treatment liquids, wherein the treatment liquid comprises a chromophore selected from the group consisting of monoazo, triarylmethane, xanthene, anthraquinone, hydrophobic dyes, and mixtures thereof, wherein the hydrophobic dyes are selected from the group consisting of benzodifuranes; methine; triphenylmethanes; naphthalimides; pyrazole; naphthoquinone; mono-azo, di-azo dyes and mixtures thereof, said process comprising the steps of:i. providing a mixing vessel with the treatment composition comprising the chromophore;ii. providing to the mixing vessel more than 0.045% of a reducing agent selected from the group consisting of sulfite, thiodiurea, formaldehyde bisulfite formaldehyde sulfoxilate and mixtures thereof; andiii. mixing until discolouration by color neutralization of the chromophore is achieved.

The invention provides an oil-soluble identification agent. The oil-soluble identification agent is prepared by mixing, by mass, 0.01-3% of benzodifuran (C12H8O), 20-50% of Sudan blue, 30-50% of Sudan yellow, and 20-50% of xylene (C8H10), and the sum of mass percentages of above components is 100%. The oil-soluble identification agent can be used for identifying the quality of the fuel oil and the fuel oil additives. The oil-soluble identification agent allows a detection method to be simple, has high stability, and has no influences on the physical and chemical indexes of the fuel oil and the additives.

The invention belongs to the technical field of new material synthesis, and discloses a covalent organic framework material with a benzofuran structure, a synthesis method and an application thereof.The material is connected by covalent bonds, has a highly planar rigid structure and an AA accumulation structure between layers, and has high crystallinity, a structural unit of the material belongsto a hexagonal crystal system P6 / m space group, and the cell parameters a, b, c are characterized in that alpha, beta and gamma are respectively about 90 degrees, 90 degrees and 120 degrees. Accordingto the preparation method, benzodifuran amino derivatives containing different substituent groups and 2, 4, 6-trihydroxy s-tribenzaldehyde are synthesized into the covalent organic framework materialwith a benzofuran structure under solvothermal reaction conditions. The synthesis method is simple and good in operability, and the pore diameter of the material and functional groups around pore channels can be accurately regulated and controlled by controlling the functional groups in the monomer benzodifuran amino derivative.

A nitrobenzodifuroxan compound having the chemical structure of:wherein two of the R1, R2, R3 and R4 comprise oxygen or are absent, and only one of R1 or R2 is present, and only one of R3 and R4 is present, and wherein x is hydrolyzed or hydrolyzable. The salt of the hydroxynitrobenzodifuroxan of this compound is useful in explosive compositions.

The invention relates to an organic fuel additive. The organic fuel additive comprises, by mass, 25-40 parts of alcohol organics, 15-18 parts of benzodifuranone, 10-15 parts of nonyl phenol, 8-12 parts of polyethylene glycol, 10-16 parts of dichloroethane, 10-15 parts of naphtha, 18-22 parts of nitrotoluene and 60-70 parts of deionized water. The organic fuel additive has the advantages that the organic fuel additive has effective chemical effect, is used for cleaning a whole fuel system, is applicable to a new direct-injection fuel system, and can be used in any types of engines such as gasoline engines and diesel engines to move sediments from combustors and intake valves; only by pouring the organic fuel additive into a fuel tank, halt is avoided effectively, fuel combustion efficiency and power are improved, and emission is reduced.

The invention discloses a two-dimensional conjugated dibenzofuran conjugated polymer photoelectric material and a preparation method and application thereof. The polymer has a structural formula as shown in formula I, wherein A1, A2, R1 and R2 independently represent any one of the following groups: hydrogen, C1-C30 alkyl group, C1-C30 alkoxy group, cyan group, nitro group, ester group, aryl group, aralkyl group, halogen, alkylogen group, heteralkyl group, alkenyl group, and aryl group substituted by a substituent of a single bond, a double bond, a triple bond or combination thereof; Ar1, Ar2 and Ar independently represent any one of the following unsubstituted groups or groups containing a substituent: vinylidene group, ethynylene group, single ring arylene group, double ring arylene group, arylene group containing at least three rings, single ring heteroarylene group, double ring heteroarylene group, and conjugated units of heteroarylene group containing at least three rings, and n is a natural number between 5 and 500. The polymer material disclosed by the invention can be applied in the photoelectric field such as organic solar batteries and the high-mobility field effect tube field. (Formula I).

The invention relates to a benzodifuranone dye synthetic method which comprises the following steps of by taking alkyl ester oxalyl monochloride and aromatic hydrocarbon as raw materials, performing Friedel-Crafts reaction to prepare an intermediate 1 or 1', performing hydrogenation reduction on the intermediate 1 and the intermediate 1' to prepare an intermediate 2 and an intermediate 2', performing condensation reaction on the intermediate 2, an intermediate 3 as a condensation product of p-chlorophenol and then the intermediate 2' to produce an intermediate 4, and performing oxidation on the intermediate 4 to obtain benzodifuranone. The synthetic technology provided by the invention is low in cost, dangerousness and pollution, is simple in technology route without single purification process, is cheap and available in production raw material, has the cost far lower than the cost of the existing technology, is relatively high in the total yield, reaching 69 percent of a product, hasthe content being larger than 98.5 percent, has very high economic benefit, is suitable for mass production and has a good industrial application prospect.

The invention relates to an efficient fuel additive, comprising the following components according to parts by weight: 11-19 parts of hydrogenated carbonyl phenol, 6-15 parts of ferrocene, 8-10 parts of merphos, 10-14 parts of polyethylene glycol, 9-11 parts of benzodifuran, 4-16 parts of nonylphenol, 3-5 parts of dinitrogen ethane, 15-20 parts of naphtha and 40-50 parts of deionized water. The efficient fuel additive has effective chemical action for clearing an overall fuel system, is applicable to a new direct-injection fuel system, may be used in any types of engine such as gasoline engine and diesel engine to remove precipitate from a combustor and an intake valve, may be poured into a fuel tank to effectively prevent a halt, improving fuel combustion efficiency and horsepower and reducing emission.

The invention discloses a novel polymerization method of a conjugated polymer based on (2-oxyindole-3-idene) benzodifuran-dione and bithiophene. According to the novel active polymerization method, a polymerization reaction is carried out by taking bithiophene dibenzodipyrrole dione and benzodifuran dione as basic compounds and taking acid as a catalyst in a solvent, such as chlorobenzene or methylbenzene, and thus the polymer can be efficiently prepared. The polymerization method is novel in design and easy in activity control, is efficient, and can be applied to preparation of semiconductor polymers of such type. The polymer has a structural formula shown in the description. In the formula, R1 is a C8-C24 alkyl chain, R2 is H or a C6-C14 alkyl chain, and n is no less than 1.

The invention discloses an A-D-A conjugated molecule of a seven-fused-ring unit based on dibenzofuran. The seven-fused-ring unit based on dibenzofuran serves as an electron-donating core, and the design of an electron withdrawing unit at a terminal is changed to synthesize a series of brand new A-D-A conjugated molecules good in solubility and good in heat stability. Experiments prove that the material has high visible light absorption capability, high charge transfer performance and a proper electron energy level, and is suitable for being applied to preparing organic solar cells as electrondonors or electron acceptor materials.

The invention discloses a new green synthesizing process for a ketocoumaran compound. The synthesizing process comprises the following steps: in the absence of a solvent, performing condensation reaction of a mandelic acid compound and hydroquinol under the action of a little amount of acid catalyst to obtain a full condensed intermediate, wherein the acid catalyst is selected from one of 10 to 37 percent concentrated hydrochloric acid, 60 to 98 percent concentrated sulfuric acid, fuming sulfuric acid, 80 to 98 percent phosphoric acid, polyphosphoric acid, p-toluenesulfonic acid, trifloromethanesulfonic acid, benzoic acid, ammonium acetate, ammonium chloride, KF, TiC14, NiCl2, CuSO4, Cu(OAc)2, ZnCl2, AlCl3, Fe(NO3)3, FeCl3 and SnCl2; and performing oxidation reaction of full condensed intermediate under the action of an oxidant to obtain a final product ketocoumaran compound. The synthesizing process of the invention is simple, and has low energy consumption and little environmental pollution.

The invention relates to the technical field of polymer photovoltaic materials, in particular to a fluorine-containing two-dimensional conjugate benzo-difuran and pyrazine copolymer photovoltaic material, and a preparation method and application thereof. The structural formula of the fluorine-containing two-dimensional conjugate benzo-difuran and pyrazine copolymer photovoltaic material is shown as follows (please see the specifications for the formula), wherein R is an alkyl group. A copolymer is an electronic donor material, and the fluorine-containing two-dimensional conjugate benzo-difuranand pyrazine copolymer photovoltaic material is applied to a polymer solar cell, has wide visible region absorption, the low HOMO energy level, the relative narrow band gap and the high photovoltaicconversion efficiency.

The invention discloses application of a benzodifuranone compound in preparation of medicines for treating intractable epilepsy, and belongs to the technical field of medicines. According to the application, the benzodifuranone compound is used for treating epilepsy for the first time, and particularly a new candidate drug is provided for treatment of intractable epilepsy. In addition, the invention further provides a compound medicine combining the benzodifuranone compound and sodium valproate, and the benzodifuranone compound and the sodium valproate have an obvious synergistic effect in treatment of intractable epilepsy diseases.

A nitrobenzodifuroxan compound having the chemical structure of:wherein two of the R1, R2, R3 and R4 comprise oxygen or are absent, and only one of R1 or R2 is present, and only one of R3 and R4 is present, and wherein x is hydrolyzed or hydrolyzable. The salt of the hydroxynitrobenzodifuroxan of this compound is useful in explosive compositions.

A polybenzodifuran ladder polymer is disclosed.