95results about "Amino-hydroxy-anthraquinone dyes" patented technology

Provided are compounds, methods and kits for identifying in cells of interest organelles including nuclei and a wide variety of organelles other than nuclei (non-nuclear organelles), as well as cell regions or cell domains. These compounds and methods can be used with other conventional detection reagents for identifying the location or position or quantity of organelles and even for distinguishing between organelles in cells of interest.

This invention relates to an improved method for producing disperse red 60. The method comprises: bromizing and hydrolyzing 1-aminoanthraquinone in sulfuric acid medium to obtain 1-amino-2-bromo-4-hydroxylanthraquinone wet filter cake, condensing in the presence of phenol medium and acid-attaching agent, cooling to 95-100 deg.C at the condensation end-point, adding water, dropping alkali solution, cooling to 50-52 deg.C, filtering, washing, and drying to obtain 1-amino-2-bromo-4-hydroxylanthraquinone (disperse red 60). The method directly utilizes disperse red 60 wet filter cake to avoid the drying procedure, thus simplifying the operation, lowering the equipment investment, improving the operation conditions, and reducing the labor intensity. Besides, the method also increases product yield and quality, as well as reduces phenol amount.

A liquid crystal composition comprising at least one liquid crystal compound and at least one anthraquinone compound represented by formula (1) below: Formula (1) (wherein R<2 >to R<8 >each independently represents a hydrogen or substituent; Het is a sulfur or oxygen; B<1 >and B<2 >each independently represents an optionally substituted arylene, heteroarylene, cycloalkan-diyl or cycloalken-diyl; Q<1 >is a bivalent linking group; C<1 >is an optionally substituted alkyl, cycloalkyl, alkoxy, alkokycarbonyl or acyloxy; p, q and r each represents a number from 0 to 5 and n is a number from 1 to 3 satisfying 3<=(p+r)xn<=10; when plural {(B<1>)p-(Q<1>)q-(B<2>)r} are present, these may be the same or different) was disclosed.

The invention relates to a preparation method for disperse violet 26. In the method, 1,4-diamino-2,3-dichloroanthraquinone and phenol undergo a condensation reaction in the presence of an acid-binding agent, so that 1,4-diamino-2,3-diphenyl oxide anthraquinone is generated; particularly, the condensation reaction is undergone in a water-insoluble inertial organic solvent of which the boiling point is 120-175 DEG C; the feeding weight ratio of the inertial organic solvent to phenol to 1,4-diamino-2,3-diphenyl oxide anthraquinone to the acid-binding agent is (1.5-2.5):(3-5):(0.9-1.1):1; and in the process of the condensation reaction, and water in a system is brought out by using the inertial organic solvent. In the preparation method, water (mainly water generated through a condensation reaction) in the system is brought out quickly by using a solvent, forward proceeding of the reaction is facilitated, the reaction time is greatly shortened, and the generation of a byproduct is reduced, so that the product has high yield and high purity, and the production cost is lowered.

The invention relates to a producing method of disperse red 60. The producing method mainly comprises the steps that firstly, 1-anthraquinone is adopted as raw material to make 1-amino-2-bromine-4-hydroxyanthraquinone dry product; secondly, the 1-amino-2-bromine-4-hydroxyanthraquinone dry product reacts with phenol to perform condensation reaction under the existence of acid binding agent to generate 1-amino-2-phenoxy -4-hydroxyanthraquinone, in the second step, the condensation reaction is performed in inert solvent with a high boiling point, the mass ratio of the inert solvent with a high boiling point, the phenol and the 1-amino-2-bromine-4-hydroxyanthraquinone dry product is 2.5 to 3.5 : 1.7 to 1.05 : 1, the inert solvent with a high boiling point is organic solvent which is insoluble in water and has a higher boiling point than that of the phenol, when the condensation reaction reaches the end, the phenol is removed through pressure reduction and distillation, 1-amino-2-phenoxy -4-hydroxyanthraquinone is separated through cooling, and the disperse red 60 is obtained through filtering. The producing method is simple, no wastewater is discharged, and the producing method can meet the requirement for clean production.

The invention discloses an extraction method of an anthraquinone allergenic dispersed dye shown in a formula (1) in the specification. The method comprises the following steps of: dissolving product dye corresponding to the formula (1) to a polar solvent and extracting a compound (1) by using a high-efficiency liquid-phase chromatography method under the conditions: a chromatographic column is a chromatographic column of octadecylsilyl bonded silica gel, methanol and water are used as moving phases for gradient elution, the ratio of the methanol to the water at the start gradient is 70:30 to 85:15, the ratio of the methanol to the water at the final gradient is 95 to 5, the gradient elution time is longer than 8min, the velocity of flow is 5-30ml/min, and the detection wavelength of an UV(Ultraviolet) detector is 210-570nm. The invention also discloses a product prepared by using the method and application thereof as a standard sample for analysis. The product obtained by using the extraction method of the invention reaches the purity up to 98.7-99.9 percent.

Disclosed herein is a composition for use as a film on an image display filter. In some embodiments, the composition includes a cyanine dye exhibiting an absorption maximum in the wavelength region from about 830 to about 880 nm or from about 580 to about 600 nm and an anthraquinone dye comprising an anthraquinone compound substituted with an amino group in one or more positions selected from the 1-, 4-, 5-, and 8-position.

An object of the present invention is to provide a thermal transfer recording sheet that enables high-chroma images to be formed, has a high color-developability that enables a wide color gamut to be achieved, and enables high-quality black images to be formed using process black. The thermal transfer recording sheet includes a base material, and a yellow dye layer including a yellow dye, a magenta dye layer including a magenta dye, and a cyan dye layer including a cyan dye that are disposed on the base material. The magenta dye, yellow dye, and cyan dye each contain specific compounds.

The invention relates to disperse blue 2BLN, in particular to a method for preparing environment-friendly novel disperse blue 2BLN. The method is mainly applied to printing and dying industries, production industries and chemical industries. The method comprises the following steps: preparing a crude nitrified material, preparing a refined material, preparing a phenoxy object, preparing a binitro object, preparing a hydrolysate, preparing a reduzate, preparing a bromide and preparing a finished product. A product, prepared by using the method for preparing the environment-friendly novel disperse blue 2BLN, is high in purity, and the color brightness, the dispersing capability and the color fastness of the product are improved.

The radiation-sensitive composition and the negative working imageable element include a cationic IR absorber with tetraarylborate counteranion and an onium initiator with tetraarylborate counteranion. The use of these components provides high imaging sensitivity, good shelflife and high print run length.

The invention relates to an inorganic-organic hybrid compound as an ion compound, composed of an inorganic cation and an organic anion active substance and optionally, an organic anion fluorescent dye.

The present invention belongs to the field of dye technology, and is especially one kind of acid anthraquinone dye and its preparation process and application. The acid anthraquinone dye in the structure as shown is prepared through extracting 2-ethyl-6-sec-butylamine or 2-methyl-6-sec-butylamine from waste industrial oil, condensation reaction with 1, 4-dihydroxy anthraquinone, and sulfonating in a solvent process. The acid anthraquinone dye is applied in dyeing wool and wool fabric to obtain glow blue or bright purple, and has fastness performance similar to available acid anthraquinone dye.

The invention discloses a method for preparing disperse red. The preparation steps include preparing to obtain 1-amino-2-(4'-sulfonyl chloride) phenoxy-4-hydroxy-anthraquinone, and subjecting the intermediate to reacting with 3-ethyoxypropylamine to obtain 1-amino-2-<4'-(3-ethyoxypropylamine sulfonyl) phenoxy>-4-hydroxy-anthraquinone. The method for preparing the disperse red has the advantages that the process is simple, the yield is high, the total yield is larger than or equal to 95%, the finished product purity is larger than or equal to 99.8%, and the method can meet the requirements of industrial production.

The invention relates to an improved condensation process of disperse red 146. 1-amino-anthraquinone is taken as raw material, 1-amino-2-bromo-4-hydroxyanthraquinone is obtained by bromination and hydrolysis in sulfuric acid solution; the 1-amino-2-bromo-4-hydroxyanthraquinone is condensed with phydroxy phenol in mixed solvent medium, with the existing of acid binding agent and catalyst, and the temperature reduces to 75-80 DEG C after reaching the end point and methanol is dripped with controlling the temperature, and the segregation is done, the temperature is reduced under 50 DEG C after the segregation; the disperse red 146 is produced after standing, filtering and then the filter cake is cleaned by methanol and hot water. The invention is characterized in that: the 1-amino-2-bromo-4-hydroxyanthraquinone used in the condensation is wet cake added with the mixed solvent medium as well as the catalyst. By applying 1-amino-2-bromo-4-hydroxyanthraquinone wet cake directly, drying process is saved and operation is simplified, thereby reducing equipment investment and improving operation environment and reducing labor intensity; besides, the method also improves reaction yield and product quality and the economic benefit is very obvious.

The invention relates to the synthesis technique improvement of disperse red 91 which uses the disperse red 60 and hexanediol as raw materials, uses potassium carbonate or potassium hydroxide as an acid binding agent and uses an emulsifier of OP series as a catalyst; after the raw materials are condensed at high temperature to the terminal, the product can be segregated by methanol (or ethanol) when the temperature is cooled, and at last the product is filtrated and separated. The mother liquid is rectified to recycle the methanol (or ethanol), phenol and hexanediol, and the technique improves the product quality.

Dichroic dyes, dichroic dye compositions, and liquid crystal composition and liquid crystal display element containing the dichroic dyes. The dichroic dye has increased solubility and stability.

The liquid crystal composition of the present invention contains a compound represented by the following Formula (1) and a liquid crystal. In Formula (1), at least one among R¹ to R⁷ is a liquid crystalline substituent, and those among R¹ to R⁷ that are not a liquid crystalline substituent each independently represent a hydrogen atom or a substituent. X and Y each independently represent an alkyl group, a halogen atom, an alkoxy group, or an alkylthio group. Z represents an alkyl group having 3 or more carbon atoms, an acyl group, or an aryl group. A represents an oxygen atom, a sulfur atom, or a nitrogen atom. n represents 0 or 1. The liquid crystal device, reflection display material, and light modulating material of the invention contain the liquid crystal composition.