88 results about "Cyclohexadienes" patented technology

The invention relates to a thermal-insulation window film and a preparation method thereof. The thermal-insulation window film is combined by multiple layers, wherein a thermal-insulation acrylic acid adhesive layer (3-1) is formed by a mixture of a thermal-insulation matter, an acrylic acid adhesive, a curing agent, an ultraviolet absorber, a dye, butanone and toluene in a mass ratio of (0.01-3.0):(9-60):(0.003-0.02):(0.001-0.015):(0-2):(5-24):(3-13); and the thermal-insulation matter is N,N,N',N'-tetrakis[4-(dibutylamino)phenyl]-1,4-cyclohexadiene-3,6-diaminium (1:2). The rate of the rejection to infrared light with a wavelength of 850 to 1,050 nanometers of the thermal-insulation window film is 96.7 percent, the light transmittance of the thermal-insulation window film is 71 percent, the rate of the rejection to ultraviolet light with a wavelength of 360 nanometers of the thermal-insulation window film is 99.9 percent, and thus, the rate of the rejection to infrared light with a wavelength of 850 to 1,050 nanometers of the thermal-insulation window film has high light transmittance and excellent ultraviolet-proof effect.

The invention heterocyclic-sulfur fused naphthalenetetracarboxylic acid diimide derivatives, a preparation method and application thereof. In the preparation method, 2,3,6,7-tetrabromo-naphthalene diimide reacts with 2-alkyl cyanoacetate-ethylene-1,1-dithiol sodium salt, 2-mandelonitrile-ethylene-1,1-dithiol sodium salt or 2-(4-phenylacetonitrile bromide)-ethylene-1,1-dithiol sodium salt to prepare 1,3-heterocyclic-disulfide fused naphthalenetetracarboxylic acid diimide derivatives; and the 2,3,6,7-tetrabromo-naphthalene diimide reacts with 1,2-dicyanoethylene-1,2-dithiol sodium salt to prepare 1,4-dithiin cyclohexadiene-2,3-dinitrile fused naphthalenetetracarboxylic acid diimide derivatives, which further reacts to prepare alpha,beta-dicyanothiophene fused naphthalenetetracarboxylic acid diimide derivatives. The compounds are n-type organic semiconductor materials, and have wide application prospect in the field of organic electronics (organic field effect transistors, organic solar cells and the like).

A method comprising providing a starting composition comprising a polyunsaturated fatty acid, a polyunsaturated fatty ester, a carboxylate salt of a polyunsaturated fatty acid, a polyunsaturated triglyceride, or a mixture thereof; self-metathesizing the starting composition or cross-metathesizing the starting composition with at least one short-chain olefin in the presence of a metathesis catalyst to form self-/cross-metathesis products comprising: cyclohexadiene; at least one olefin; and one or more acid-, ester-, or salt-functionalized alkene; and reacting cyclohexadiene to produce at least one cycloalkane or cycloalkane derivatives. A method for producing cycloalkanes for jet fuel by providing a starting composition comprising at least one selected from the group consisting of algal and polyunsaturated vegetable oils, subjecting the starting composition to metathesis to produce metathesis product comprising at least one olefin, cyclohexadiene, and at least one acid-, ester-, or salt-functionalized alkene, and reacting the at least one olefin and cyclohexadiene to form cycloalkane(s).

The invention relates to a preparation method for obeticholic acid and an intermediate thereof. The intermediate 3alpha-hydroxy-6alpha-ethyl-7-keto-5beta-cholanic acid is obtained by subjecting 3alpha-hydroxy-6-ethylidene-7-keto-5beta-cholanic acid benzyl ester compounds to a reaction under the action of a catalyst and a hydrogen donor. The catalyst is selected from Pd/C or PtO2 or Raney Ni. The hydrogen donor is selected from cyclohexene or cyclohexadiene or tetrahydronaphthalene. According to the method, the yield is high, the stereoselectivity is high, safety is good, the reaction condition is mild, and the method is applicable to industrial production.

1,4-Cyclohexadienes and triarylmethanes are chain transfer agents for certain late transition metal complex catalyzed polymerizations of olefins.

The invention relates to novel fullerene derivatives, to methods for their preparation and educts or intermediates used therein, to mixtures and formulations containing them, to the use of the fullerene derivatives, mixtures and formulations as organic semiconductors in, or for the preparation of, organic electronic (OE) devices, especially organic photovoltaic (OPV) devices and organic photodetectors (OPD), and to OE, OPV and OPD devices comprising, or being prepared from, these fullerene derivatives, mixtures or formulations.

A method for producing at least one compound selected from the group consisting of 1,8-cineole, and 1-methyl-1,4-cyclohexadiene is also described. The method includes culturing a microorganism on or within a culturing media in a container under conditions sufficient for producing the at least one compound.

The invention provides a method for efficiently and selectively synthesizing diaryl methyl substituted organic phosphonate derivatives containing different substitute functional groups. The method uses cesium carbonate as a catalyst, and uses a P (O)-H compound and 4-arylmethylene-2, 6-di-tert-butyl 2, 5-cyclohexadiene-1-ketone compounds as reactants; an organic solvent is added into a reaction system. The method has the advantages that the catalyst is cheap and easy to obtain; the reactants are high in applicability; the reaction is mild in conditions, safe and reliable; the selectivity of the obtained target product is close to 100%, and the yield is as high as 90% or above. The method solves the problems that the conventional synthetic diaryl methyl substituted organic phosphonate derivatives are poor in reaction selectivity, tedious in reaction steps and low in yield, needs to use environmentally harmful reagents, and the like; the method has a good industrial application prospect.The invention also provides the corresponding diaryl methyl substituted organic phosphonate derivatives containing the different substitute functional groups.

The invention discloses a one-pot synthesis process for 4-aryl methylene-2,6-disubstituted-2,5-cyclohexadiene-1-one. The process comprises the following steps: using 2,6-disubstituted phenol and benzaldehyde as initial raw materials; in the presence of a solvent, adding secondary amine and carrying out reaction to generate Mannich base; and then adding anhydride to obtain the product 4-aryl methylene-2,6-disubstituted-2,5-cyclohexadiene-1-one. By adopting the method disclosed by the invention, the 4-aryl methylene-2,6-disubstituted-2,5-cyclohexadiene-1-one can be prepared under normal conditions, intermediates do not need to be separated and purified, the operation is safe, the energy resources are saved, and the process is suitable for large-scale production.

A method of controlling target aquatic microorganism pest populations by exposing the target population to an effective amount of an aquacidal compound. The aquacidal compounds are selected from the group consisting of quinones, anthraquinones, naphthalenediones, quinine, warfarin, coumarins, amphotalide, cyclohexadiene-1,4-dione, phenidione, pirdone, sodium rhodizonate, apirulosin and thymoquinone. The method is particularly effective for treating ballast water of ships or other enclosed volumes of water subject to transport between or among geographic areas to control the relocation of plants, toxic bacteria, and animals contained in the water.

An isolated fungus is described. The isolated fungus produces at least one compound selected from the group consisting of 1,8-cineole, 1-methyl-1,4-cyclohexadiene, and (+)-α-methylene-α-fenchocamphorone. A method for producing at least one compound selected from the group consisting of 1,8-cineole, 1-methyl-1,4-cyclohexadiene, and (+)-α-methylene-α-fenchocamphorone is also described. The method includes culturing a fungus on or within a culturing media in a container under conditions sufficient for producing the at least one compound.

The invention discloses 2, 6-di-tert-butyl-4-(2-methoxyphenylmethylene)-2, 5-cyclohexadiene-1-one. A preparation method of 2, 6-di-tert-butyl-4-(2-methoxyphenylmethylene)-2, 5-cyclohexadiene-1-one comprises the following steps: 1) preparing a Mannich base: heating 2, 6-di-tert-butylphenol and ortho-anisaldehyde to reflux temperature of 100-160 DEG C, then performing heat preservation and dropwise adding secondary amine; and further performing reflux reaction on 2, 6-di-tert-butylphenol and ortho-anisaldehyde under the catalytic action of secondary amine in solvent-free conditions; 2) removing secondary amine in the Mannich base: performing reduced pressure distillation on a reaction solution obtained in the step 1) to remove secondary amine in the Mannich base so as to obtain a crude product; and 3) recrystallizing the crude product: performing recrystallization on the crude product obtained in the step 2) by adopting a hot melting and cold separation method to obtain 2, 6-di-tert-butyl-4-(2-methoxyphenylmethylene)-2, 5-cyclohexadiene-1-one.

The invention provides a method for separating cyclohexene and 1,3-cyclohexadiene by azeotropic distillation. A mixed solution of cyclohexene and 1,3-cyclohexadiene is introduced into an azeotropic distillation tower from the middle of the azeotropic distillation tower, an azeotrope former is also introduced into the azeotropic distillation tower from the middle of the azeotropic distillation tower, overhead gas is condensed by a condenser and enters a tower top decanter for phase splitting and layering, one part of an aqueous phase I flows back to the azeotropic distillation tower through a reflux pump, and the other part serving as a circulating impurity is discharged out of a boundary region; an oil phase I serving as a cyclohexene product is extracted by a cyclohexene product pump; a 1,3-cyclohexadiene and azeotrope former mixture at the tower bottom enters a tower bottom decanter for phase splitting and layering, and an aqueous phase II returns to the azeotropic distillation towerfor recycling by an azeotrope former circulating pump; an oil phase II serving as a 1,3-cyclohexadiene product is extracted by a 1,3-cyclohexadiene product pump, wherein the azeotrope former is water. High-purity cyclohexene and 1,3-cyclohexadiene products can be obtained with the method, utilization rate of by-product heavy oil is increased, operation cost of a device is reduced, and environmental pollution is reduced.

An isolated fungus having the imperfect stage of Nodulisporium is described. The isolated fungus produces at least one compound selected from the group consisting of 1,8-cineole, and 1-methyl-1,4-cyclohexadiene.

The invention discloses 2,6-di-tert-butyl-4-(-4-fluorobenzylidene)-2,5-cyclohexadiene-1-one. A preparation method of 2,6-di-tert-butyl-4-(-4-fluorobenzylidene)-2,5-cyclohexadiene-1-one comprises the following steps: 1) preparing mannich base, namely heating 2,6-di-tert-butylphenol and p-fluorobenzaldehyde to reflux temperature of 100-160 DEG C, and then dropwise adding secondary amine under heat preservation, so that 2,6-di-tert-butylphenol and p-fluorobenzaldehyde are subjected to reflux reaction in a solvent-free condition under the catalytic action of the secondary amine; 2) removing the secondary amine from the mannich base, namely carrying out reduced pressure distillation on reaction liquid obtained in the step 1), thereby removing the secondary amine from the mannich base to obtain a crude product; 3) recrystallizing the crude product, namely carrying out recrystallization on the crude product obtained in the step 2) by adopting a hot-melt cold-precipitation method, so as to obtain 2,6-di-tert-butyl-4-(-4-fluorobenzylidene)-2,5-cyclohexadiene-1-one.

The present invention relates to a ruthenium compound including a specific ligand structure of 1-ethyl-1,4-cyclohexadiene, 1,3-butadiene or isoprene and having superior thermal stability, vaporizing property and step coverage, and a thin film deposited using same.

The invention discloses a barbituric acid-cyclohexadiene spiro compound with Boc amino and a synthetic method of the barbituric acid-cyclohexadiene spiro compound and belongs to the technical field oforganic chemistry. The synthetic method comprises the following steps: adopting 1,1-dicyano-1,3-diene 1 and 1,3-dimethylbarbituricacid, carrying out an organic base catalytic reaction in an organic solvent, adding Boc2O into the reaction system when the raw material 1 is completely converted, and synthesizing the barbituric acid-cyclohexadiene spiro compound 4 with functional group Boc amino at high selectivity. The synthetic method can be applicable to multiple different 1,1-dicyano-1,3-diene compounds 1 and has the advantages of being readily available in raw materials, simple and convenient in operation, mild in conditions, high in reaction yield and capable of carrying out extensive reactions. According to the method disclosed by the invention, the reaction is carried out in a cycloaddition manner, and the atom economy is excellent; with the adoption of small-molecule organocatalysis, use of a transition metal catalyst is avoided, and heavy metal pollution does not exist in the product.

The invention discloses an engineering fungus, which could express benzene ring dioxygenase, and the application. Especially, it involves the special expressing engineering fungus of benzene ring dioxygenase and the application in producing syn-1, 2-dihybric-3, 5-cyclohexane. The engineering fungus is gained by inducing the expressing carrier containing benzene ring dioxygenase gene into fake single cell fungus. The producing method of syn-3, 5-dihyadric-1, 2-cyclohexadiene contains the following steps: fermenting the engineering fungus to gain benzene ring dioxygenase; adding substrate benzene or benzene solution, and the content adding to fermenting liquid is 10-30mL/L every hour; fermenting for 8-24 hours to gain syn-1, 2-dihybric-3, 5-cyclohexane; solvent of the benzene solution could be olefin or bean oil, and the volume ratio of benzene and solvent is 1:1-3. The special expressing engineering fungus of benzene ring dioxygenase will perform an important function in the industrial producing of DHCD, and it has great application prospect.

The invention provides a polymerization inhibitor preventing the self-polymerization of TFE and not modified to macromolecule body by oxygen in a distillation step, particularly in a rectification step, of TFE. The invention provides a method of distilling tetrafluoroethylene in the presence of the polymerization inhibitor comprising a cyclohexadiene compound of the formula: R<1>-A-R<2>, wherein R<1> is a hydrocarbon group having 1 to 5 carbon atoms, R<2> is a hydrogen atom or a hydrocarbon group having 1 to 5 carbon atoms, and A is a cyclohexadiene ring. The cyclohexadiene compound is preferably alpha-terpinene or gamma-terpinene.

The invention discloses an environment-friendly preparation method of a 4-phenylmethylene-2,6-di-tert-butyl-2,5-cyclohexadien-1-ketone derivative (p-QM). By utilizing the microwave radiation heating method under solvent-free conditions, 2,6-di-tert-butyl phenol and aromatic aldehyde are subjected to the two-step reaction of Mannich condensation and deamination to obtain the 4-benzylidene-2,6-di-tert-butyl-2,5-cyclohexadiene-1-ketone derivative (p-QM). The method has the advantages that the raw materials are cheap and easy to obtain, the atom economy is high, the reaction time is short, environment friendliness is good, dangerous reagents and solvents are not needed, the synthesis steps are simple and convenient and the like, the reaction conditions are mild, the substrate range applicability is good, and the method is simple and safe to operate and suitable for industrial production.

The invention discloses composition for inhibiting alcohol-based fuel for boilers from producing nitrogen oxides. The composition comprises components in percentage by mass as follows: 9.6-25.6% of (4-ethoxyphenyl)phenylmethanone, 11.8-30.3% of 2-hydroxy-3-methyl ethyl valerate, 12.9-28.1% of 1-eth-1-ynyl-4-(pentyloxy)benzene, 14.8-33.5% of 2-(4-methoxy-1,4-cyclohexadiene-1-yl)-2-propyl alcohol, 11.9-27.8% of 3-methyl-1-indanone and 10.4-21.6% of 1-iso-propenyl-4-metoxybenzene. Thecomposition is added to the alcohol-based fuel in a ratio of 0.1-0.7wt%, the nitrogen oxides produced during combustion of thealcohol-based fuel can be obviously reduced, and emission of the nitrogen oxides in combustion flue gas of the boilers is averagely reduced by 36.4%.

A method of controlling target aquatic microorganism pest populations by exposing the target population to an effective amount of an aquacidal compound. The aquacidal compounds are selected from the group consisting of quinones, anthraquinones, naphthalenediones, quinine, warfarin, coumarins, amphotalide, cyclohexadiene-1,4-dione, phenidione, pirdone, sodium rhodizonate, apirulosin and thymoquinone. The method is particularly effective for treating ballast water of ships or other enclosed volumes of water subject to transport between or among geographic areas to control the relocation of plants, toxic bacteria, and animals contained in the water.

The invention discloses a synthesis method of 2-(1-hydroxy-4-keto-2,5-cyclohexadiene)-pyran-4-ketone. The method comprises the steps that 1, on the condition of nitrogen protection and alkali existence, methoxy acetophenone is subjected to siloxane protection under the room temperature, and 1-(4-methoxy phenyl)-1-trimethyl siloxyethylene is obtained; 2, on the condition of nitrogen protection and mild acidity, 1-(4-methoxy phenyl)-1-trimethyl siloxyethylene and oxalyl chloride are subjected to a condensation reaction under the temperature of 0-5 DEG C, and 5-(4-methoxyl phenyl)-2, 3-dihydrofuran-2, 3-diketone is obtained; 3, 5-(4-methoxyl phenyl)-2, 3-dihydrofuran-2, 3-diketone and vinyl ethyl ether are subjected to reflux conditions to obtain 2-(4-methoxyl phenyl)-4H-pyrane-4-ketone; 4, under the nitrogen protection, demethylating is performed on the 2-(4-methoxyl phenyl)-4H-pyrane-4-ketone to obtain 2-(4-hydroxyl phenyl)-4H-pyrane-4-ketone; 5, under the room temperature, the 2-(4-hydroxyl phenyl)-4H-pyrane-4-ketone is subjected to a reaction under the effect of an oxidizing agent to obtain 2-(1-hydroxy-4-keto-2,5-cyclohexadiene)-pyran-4-ketone. The method is easy to implement, raw materials are easy to obtain, and the yield is high.