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30 results about "Benzanthrone" patented technology

Benzanthrone (BZA) is an aromatic hydrocarbon derivate used as a dyestuff intermediate for anthraquinone-based dyes. It has the appearance of a light yellow to brown-green powder with melting point of 170 °C. It is insoluble in water and soluble in alcohol.

New process for synthesizing reduced olive T dye

ActiveCN101284949AReduce manufacturing costReduce pollutionDibenzanthrone/isodibenzanthrone dyesEvaporationCopper oxide
The invention discloses a reducing olive T dye synthesizing novel technique. The technique comprises the following steps: firstly, 3, 9-dibromo benzanthrone, 1-aminoanthraquinone, calcined soda and copper oxides are placed into a solid-phase condensation device; after mixing, dehydration, temperature rise, heat preservation, condensation reaction and crushing, condensation compound T imine is obtained; secondly, the ring-closure reaction of the condensation compound T imine is generated in a ring-formed medium and then a reducing olive T filter mass is obtained after dilution, oxidation, water scrubbing in a filter and blowing; thirdly, after remixing, sand grinding, standardization and drying of raw dye through addition agent, a commodity is prepared, wherein, the ring-closure reaction is to use reducing deep-blue BO raw dye mother solution after evaporation and concentration as ring forming agent and to perform ring forming reaction with the imine. The reducing olive T dye synthesizing novel technique has the advantages that: the reducing deep-blue BO mother solution which is produced by the company is recycled and used for ring closure of the reducing olive T, thereby not only greatly reducing the production cost of the raw dye and improving the product quality but also reducing pollution and emission of the three wastes. Moreover, the olive T imine also can be cycled and concentrated for use after passing through filter mass washing mother solution after ring closure.
Owner:江苏嘉利精细化工有限公司

Perylene diimide organic third-order nonlinear optical material, and preparation and application of perylene diimide organic third-order nonlinear optical material

The invention relates to a perylene diimide organic third-order nonlinear optical material. 3,4,9,10-perylenetetracarboxylic diimide serves as a core group; cyclohexane and benzanthrone or triphenylamine serve as substituent groups; cyclohexane is connected with an imide nitrogen atom of the core group; and benzanthrone or triphenylamine is connected with a bay of the core group to form a whole. A preparation method comprises the steps: (1) adding a perylene diimide derivative, a benzanthrone derivative or a triphenylamine derivative with the imide nitrogen atom connected with cyclohexane, and potassium carbonate into a solvent for dissolution, (2) after supplying nitrogen for 1-30 min, adding a tetrakispalladium catalyst, heating to 80-100 DEG C at a speed of 500-1200 r/min for reaction for 3-24h , (3) carrying out extraction, knockout and dryness for many times by using dichloromethane and distilled water, and (4) separating and purifying an obtained crude product. The perylene diimide organic third-order nonlinear optical material has a large nonlinear absorption coefficient and a two-photon absorption cross-section value and is applied to a third-order nonlinear optical material aspect.
Owner:SHANTOU UNIV

Preparation method and application of alkoxy benzanthrone photoinitiator

The invention discloses a preparation method of an alkoxy benzanthrone photoinitiator, relates to the technical field of photocuring synthesis, and is provided to solve the problems that existing photoinitiators have poor compatibility with polyethylene or polypropylene, leading to insufficient tensile strength of crosslinked materials. The preparation method comprises the steps as follows: (1) mixing and stirring 3-bromobenzanthrone, alkyl alcohol and inorganic base, and then, stirring and mixing the obtained mixture with dichloromethane and water; and (2) carrying out recrystallization to prepare alkoxy benzanthrone. The invention further provides the alkoxy benzanthrone photoinitiator prepared by the method and application of the alkoxy benzanthrone photoinitiator. The alkoxy benzanthrone photoinitiator has the beneficial effects as follows: the alkoxy benzanthrone prepared by the method is used as the photoinitiator, an alkoxy structure is embedded in the structure to improve the molecular weight and solubility property of the photoinitiator, so that the photoinitiator has high crosslinking efficiency with a copolymer, and a material has good tensile strength and excellent mechanical properties and heat resistance.
Owner:ANQING FEIKAI NEW MATERIAL CO LTD

Polymerizable photoinitiator based on benzanthrone and preparation method of polymerizable photoinitiator

The invention discloses a polymerizable photoinitiator based on benzanthrone, relates to the technical field of photoinitiators, and provides the photoinitiator based on the problem that a conventional photoinitiator causes yellowing of a material; the photoinitiator has the structural general formula described in the specification, wherein n=1-6. The invention also provides a preparation method of the photoinitiator. The photoinitiator has the beneficial effects that according to the prepared photoinitiator, polyethylene glycol is introduced into benzanthrone, so that the compatibility of thephotoinitiator and a polymerization system is improved; and meanwhile, unsaturated double bonds are introduced into initiator molecules, so that the volatility and mobility of the photoinitiator arereduced.
Owner:ANQING FEIKAI NEW MATERIAL CO LTD

Perylene diimide fluorescent dye with ortho-substituted benzanthrone, and preparation ,method and application thereof

ActiveCN113321653AGreat application potentialLarge two-photon absorption cross-sectionOrganic chemistryPhotodynamic therapyBenzanthreneTwo-photon absorption
The invention relates to a perylene diimide fluorescent dye with ortho-substituted benzanthrone. 3, 4, 9, 10-perylenetetracarboxylic diimide is used as a core group, imide nitrogen atoms at two ends of the core group are connected with 7-tridecyl, and the ortho-position of the core group is connected with benzanthrone. The 7-tridecyl group is introduced to the perylene diimide group, and the benzanthrone group is introduced to the ortho position, so that the obtained perylene diimide fluorescent dye of ortho-substituted benzanthrone has a large two-photon absorption cross section value, the third-order nonlinear optical activity is greatly improved, and the perylene diimide fluorescent dye can be applied to a third-order nonlinear optical material. Meanwhile, no matter whether single photons or two photons are used for exciting the aggregation states of the two photons, the perylene diimide fluorescent dye with ortho-substituted benzanthrone shows AIE properties, and has great application potential in the aspects of two-photon fluorescence imaging and two-photon dynamic therapy.
Owner:SHANTOU UNIV

New process for synthesizing reduced olive T dye

ActiveCN101284949BReduce manufacturing costReduce pollutionDibenzanthrone/isodibenzanthrone dyesEvaporationCopper oxide
The invention discloses a reducing olive T dye synthesizing novel technique. The technique comprises the following steps: firstly, 3, 9-dibromo benzanthrone, 1-aminoanthraquinone, calcined soda and copper oxides are placed into a solid-phase condensation device; after mixing, dehydration, temperature rise, heat preservation, condensation reaction and crushing, condensation compound T imine is obtained; secondly, the ring-closure reaction of the condensation compound T imine is generated in a ring-formed medium and then a reducing olive T filter mass is obtained after dilution, oxidation, waterscrubbing in a filter and blowing; thirdly, after remixing, sand grinding, standardization and drying of raw dye through addition agent, a commodity is prepared, wherein, the ring-closure reaction isto use reducing deep-blue BO raw dye mother solution after evaporation and concentration as ring forming agent and to perform ring forming reaction with the imine. The reducing olive T dye synthesizing novel technique has the advantages that: the reducing deep-blue BO mother solution which is produced by the company is recycled and used for ring closure of the reducing olive T, thereby not only greatly reducing the production cost of the raw dye and improving the product quality but also reducing pollution and emission of the three wastes. Moreover, the olive T imine also can be cycled and concentrated for use after passing through filter mass washing mother solution after ring closure.
Owner:江苏嘉利精细化工有限公司

Industrial production method of vat dark blue BO

The invention relates to the field of fine chemical engineering, in particular to an industrial production method for vat dark blue BO, which comprises the following steps: adding anhydrous sodium acetate, potassium hydroxide and a solvent into a reaction kettle under a stirring condition, heating with steam until the sodium acetate and potassium hydroxide are fully dissolved, and introducing nitrogen into the reaction kettle for protection; alternately adding sodium chlorate and benzanthrone and controlling the temperature of the feed liquid; after the feeding is finished, raising the temperature to carry out a condensation reaction; after the condensation reaction is finished, transferring a reaction solution into an oxidation kettle, adding water, and introducing air or oxygen while stirring to perform an oxidation reaction; after the reaction is finished, performing filtration to obtain a solid, and washing the solid with hot water to obtain a vat dark blue BO crude product; addingwater into the crude product for pulping, and adding acid to adjust the pH to weak acidity; performing filtration and drying to obtain a vat dark blue BO finished product. According to the industrialproduction method for vat dark blue BO provided by the invention, the mother liquor is concentrated and recycled, so that the cost is further reduced, and the method is more environment-friendly.
Owner:JIANGSU YABANG DYE

Benzanthrone-based bimolecular initiator as well as preparation method and application thereof

The invention discloses a benzanthrone-based photoinitiator, and relates to the technical field of photoinitiators, the structural general formula of the photoinitiator is as follows: R1, R2, R3, R4 and R5 are the same or different and independently represent H or methyl; The invention also provides a preparation method of the photoinitiator, which takes alkyl benzoyl chloride and benzanthrone as substrates, and a target product is obtained through Friedel-Crafts acylation reaction.
Owner:ANQING FEIKAI NEW MATERIAL CO LTD

Electrochemical preparation method of benzanthrone

The invention discloses an electrochemical preparation method of benzanthrone, which comprises the following steps: (1) sequentially adding electrolyte and anthraquinone into a diaphragm-free electrolytic tank, inserting a cathode and an anode, and introducing nitrogen; (2) stirring and heating to a reaction temperature, electrifying, dropwise adding glycerol into the electrolytic tank, and reacting at a constant temperature and a constant flow; and (3) after the reaction is completed, diluting the electrolyte until the mass fraction of the acid is 60%, separating out a product, filtering, washing and drying to obtain the benzanthrone. The method has the advantages that 1, the benzanthrone is prepared by adopting an electrochemical method, the process is simple, and the reaction condition is mild; 2, no organic solvent is added in the reaction process, no heavy metal salt is generated, and the method is an environment-friendly organic synthesis reaction; 3, a reaction product is easy to separate, the content of benzanthrone is high, and an additional treatment process is not needed; and 4, main pollutants in the electrolyte are some sulfonates of anthraquinone or benzophenone and are easy to remove, and the purified electrolyte can be recycled.
Owner:赤峰市恒祥化工有限公司

Method for producing benzanthrone by using primary battery technology

The invention discloses a method for producing benzanthrone by using a primary battery technology, and belongs to the field of fine chemical engineering. The reaction is carried out in a galvanic cell device consisting of a cathode tank, an anode tank and a permeable membrane. Concentrated sulfuric acid with the same concentration is added into a cathode tank and an anode tank to serve as a reaction medium, an aluminum plate serves as an anode, stainless steel 316L serves as a cathode, anthraquinone and glycerin are added into the cathode tank, reduction and cyclization reactions are carried out in the cathode tank, the anode and the cathode are directly connected through a wire, current is generated in the reaction process, and electrons flow to the cathode from the anode through a connecting wire. And the anode tank simultaneously generates aluminum sulfate. Compared with the prior art, according to the production method of the benzanthrone, a metal reducing agent is not added in the main reactor, pollution of metal ions is avoided, aluminum sulfate generated by an anode can be conveniently and completely recycled, secondary utilization value is achieved, meanwhile, the raw material utilization rate is high, and mother liquor sulfuric acid does not contain metal salt and can be concentrated and recycled.
Owner:DALIAN UNIV OF TECH

Novel production method of benzanthrone

The invention relates to the field of fine chemical engineering, and concretely relates to a preparation method of benzanthrone. The method concretely comprises the following steps: adding anthraquinone, ruthenium carbon, sulfuric acid, a phase transfer catalyst and a solvent into a pressure reaction kettle, introducing H2, and performing a reaction; cooling the obtained reaction solution after the reaction is finished, discharging the residual H2, filtering the reaction solution, washing the obtained filtrate with a solvent, mixing the filtrate with the obtained washing solution, and transferring the obtained solution into a second reaction kettle; repeatedly using obtained filter residue as a catalyst for the next batch; adding glycerol into the second reaction kettle, adding a catalystsulfuric acid, and performing a cyclization reaction; and performing distillation after the reaction is finished to remove the solvent, washing residues with hot water, and drying the washed residuesto obtain the benzanthrone. Compared with the prior art, the production method of benzanthrone, provided by the invention, has the characteristics that high recycling rate of raw materials, easiness in process control, low cost, and obvious improvement of the product quality.
Owner:JIANGSU YABANG DYE

Special printing and dyeing material for infrared camouflage clothing

The invention discloses a special printing and dyeing material for infrared camouflage clothing. The printing and dyeing material comprises raw materials in parts by weight as follows: 25-65 parts ofa carbon nanomaterial, 12-32 parts of benzanthrone, 10-15 parts of acridine condensed cyclic hydrocarbon, 14-30 parts of squaraine, 10-20 parts of Nile red and 22-36 parts of auxiliaries, wherein theauxiliaries comprise an accelerant, an oxidizing agent and a dispersing agent. With the adoption of the scheme, the special printing and dyeing material for the infrared camouflage clothing has good infrared absorbability and is applicable to printing and dyeing of the infrared camouflage clothing, the probability of detection of a human target is reduced, and field exploration safety is improved.
Owner:秦昌元

3-substituent benzanthrone liquid crystal dye, as well as preparation method and application thereof

InactiveCN106519733AEnhanced linear structureImproved dichroismLiquid crystal compositionsBenzathrone dyesSolubilityLiquid-crystal display
The invention discloses a 3-substituent benzanthrone liquid crystal dye, as well as a preparation method and application thereof. According to the preparation method, different acetenyl groups are introduced to the 3-bit of 3-bromobenzanthracen serving as a parent to improve the solubility of a molecule in a liquid crystal and reinforce the linear structure of the molecule, so that the dichroism of a liquid crystal compound can be improved; and highly delocalized electron and parent on a benzene ring are utilized to form a large conjugated system. The synthesized benzanthrone fluorescent bidirectional liquid crystal dye has a maximum absorption wavelength concentrated in a visible region and a transmission wavelength concentrated at about 500nm, and has the advantages of novel structure, easily available raw materials and simple synthesis method; and the dye has a better dichroic ratio and orderly parameters in the liquid crystal, can be used for manufacturing liquid crystal display products, and especially has high dichroism in guest-host liquid crystal displays.
Owner:DALIAN UNIV OF TECH
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