2,5-BIS(5-T-BUTYL-2-BENZOXAZOLYL)THIOPHENE

2% 2C5 - BIS% 285 - T - BUTYL - 2 - BENZOXAZOLYL%29THIOPHENE that is, 2,5 - bis (5 - tert-butyl - 2 - benzoxazolyl) thiophene, the main uses of this material are as follows:
First, in the field of fluorescent whitening agents, which can absorb invisible ultraviolet light and emit blue or blue-violet visible light. By means of the principle of optical complementary color, the whiteness and gloss of paper, fabric and other materials can be effectively improved. The special molecular structure of 2,5-bis (5-tert-butyl-2-benzoxazolyl) thiophene enables it to efficiently absorb ultraviolet light and emit high-intensity fluorescence, which in turn significantly enhances the whitening effect of fluorescent whitening agents. In the paper industry, the addition of fluorescent whitening agents containing this ingredient can make paper present a whiter and brighter visual effect, greatly improving the quality and appearance of paper; in the textile industry, after the fabric is treated with fluorescent whitening agents containing this substance, the whiteness is greatly improved, and the color is more vivid and dazzling, which can effectively meet the high requirements of consumers for the appearance quality of fabrics.
Second, in the field of plastics, rubber and other polymer materials, it also shows extraordinary effects. It is added to polymer materials as a fluorescent additive, which can significantly improve the optical properties of materials. On the one hand, it can give plastics and rubber products higher whiteness and gloss, enhance their appearance and beauty, and improve the visual quality of products in the production of plastic products such as plastic films and plastic pipes. On the other hand, the substance can also enhance the anti-aging properties of polymer materials. By absorbing ultraviolet light, it can reduce the damage of ultraviolet light to polymer materials, delay the aging process of materials, prolong the service life of plastic products and rubber products, and reduce the cost of use.
Thirdly, in the field of organic electroluminescent devices (OLEDs), 2,5-bis (5-tert-butyl-2-benzoxazolyl) thiophene plays a pivotal role. As a new generation of display technology, OLED has many advantages such as self-emission, wide viewing angle, and fast response speed. Due to its unique photoelectric properties, this substance can be used as a light-emitting layer material or auxiliary material in OLED devices. As a light-emitting layer material, it can efficiently convert electrical energy into light energy, emit light of a specific color, and help achieve full-color display of OLED devices. As an auxiliary material, it can optimize the balance between electron transmission and hole transmission of the device, improve the luminous efficiency and stability of the device, promote the continuous development and improvement of OLED technology, and lay a solid foundation for achieving higher resolution and more vivid color display effects.

2% 2C5 - BIS% 285 - T - BUTYL - 2 - BENZOXAZOLYL%29THIOPHENE that is, 2,5 - bis (5 - tert-butyl - 2 - benzoxazolyl) thiophene, the physical properties of this substance, has the following characteristics.
Its appearance is often white to light yellow crystalline powder, this color sign is quite common in many organic compounds, due to the characteristics of molecular structure, so that it appears in the solid state. Its melting point is in a specific range, about 198 - 202 ℃, the value of the melting point is determined by the intermolecular forces, crystal structure and other factors. The substance changes from solid to liquid within this temperature limit, and this phase transition process is of great significance for its applications in materials processing and other fields.
In terms of solubility, it is difficult to dissolve in water. Due to the strong hydrophobicity of the compound molecule, it is difficult for water molecules to form effective interactions with it. However, it is soluble in some organic solvents, such as toluene and chloroform. In toluene, the molecules of the substance can be uniformly dispersed between toluene molecules by virtue of the dispersion force and induction force between molecules, showing a good dissolution state. The same is true in chloroform. This dissolution property provides convenience for its operation in organic synthesis, material preparation, etc. It can be extracted, separated or used as a reaction medium by the corresponding organic solvent.
In addition, the substance has a certain thermal stability. Under moderate heating conditions, its molecular structure can remain relatively stable, and it is not easy to decompose or rearrange. However, when the temperature is too high, it exceeds the thermal limit it can withstand, and the molecular structure will be damaged, causing changes in chemical properties. This thermal stability is used in the processing and application of polymer materials such as plastics and rubber. If it is used as an additive, it can ensure the stability of its own properties during processing at high temperatures, so as to effectively play its role in improving material properties. In short, the physical properties of 2,5-bis (5-tert-butyl-2-benzoxazolyl) thiophene play a key role in limiting and guiding its application in many fields such as chemical industry and materials.

2% 2C5 - BIS% 285 - T - BUTYL - 2 - BENZOXAZOLYL%29THIOPHENE, this is an organic compound, the Chinese name is often called 2,5 - bis (5 - tert-butyl - 2 - benzoxazolyl) thiophene. The stability of its chemical properties is related to many factors, let me talk about it in detail.
First talk about its structure, this compound contains benzoxazolyl and thiophene ring. The structure of benzoxazole is relatively stable, because the benzene ring and oxazole ring are conjugated to a certain degree of molecular stability. The thiophene ring is also a conjugated system, which has aromatic properties and contributes to the overall stability. However, the presence of tert-butyl has a great impact. Tert-butyl is a large substituent and has a steric hindrance effect. Although it can protect benzoxazolyl and thiophene rings from some reagents to a certain extent, the steric hindrance may also increase the intramolecular tension.
Re-discussion of its chemical environment. Under the general conditions of organic synthesis, if the temperature is moderate and there is no strong oxidizing or strong reducing reagent, the stability of this compound is acceptable. However, when encountering strong acids, strong bases, or high temperatures, high pressures and special catalysts, the stability may be challenged. For example, strong acids may protonate the nitrogen atom of benzoxazole ring, destroy the conjugate system, and cause structural changes. Strong bases may attack the higher electron cloud density parts of the thiophene ring or benzoxazole ring, initiating reactions. Under high temperature conditions, the thermal motion of molecules intensifies, the vibration of chemical bonds is enhanced, or the bonds are broken, and the stability is reduced.
Overall, 2,5-bis (5-tert-butyl-2-benzoxazolyl) thiophene is relatively stable under conventional mild conditions. However, in extreme or special chemical environments, the stability is poor, or chemical reactions cause structural changes.

2% 2C5 - BIS% 285 - T - BUTYL - 2 - BENZOXAZOLYL%29THIOPHENE that is, 2,5 - bis (5 - tert-butyl - 2 - benzoxazolyl) thiophene, the synthesis method is as follows:
First take an appropriate amount of 2 - amino - 4 - tert-butylphenol and thiophene - 2,5 - dicarboxylic acid, use an appropriate amount of polyphosphoric acid as catalyst and reaction solvent, and carry out condensation reaction at a certain temperature. This reaction needs to be in a nitrogen-protected atmosphere, slowly heated to 180 ° C to 200 ° C, continuously stirred and reacted for several hours. In this process, the amino group in 2-amino-4-tert-butylphenol condenses with the carboxyl group in thiophene-2,5-dicarboxylic acid to gradually form the basic skeleton of the target product.
After the reaction is completed, the reaction mixture is cooled to room temperature, and then poured into a large amount of ice water, and the precipitation is precipitated. Then suction filtration is carried out to collect the precipitation, and the precipitation is alternately washed with an appropriate amount of water and ethanol for many times to remove impurities. The washed precipitation is then placed in a vacuum drying oven and dried at 60 ° C to 80 ° C for several hours to obtain a crude product.
The crude product needs to be further purified by column chromatography. Pure 2,5-bis (5-tert-butyl-2-benzoxazolyl) thiophene was separated by column chromatography using silica gel as the stationary phase, petroleum ether and ethyl acetate mixed in a certain proportion as the eluent. The eluent containing the target product was collected, the solvent was removed by rotary evaporation, and the final high-purity target product was obtained. The whole synthesis process requires strict control of the reaction conditions and operation steps to ensure the yield and purity of the product.

I look at your question, but I am inquiring about the price range of 2,5-bis (5-tert-butyl-2-benzoxazolyl) thiophene in the market. However, the price of this chemical often varies due to many factors, making it difficult to determine the value.
First, the situation of supply and demand has a great impact. If there are many people who want it, the price may increase if the supply is small; conversely, if the supply is abundant, the demand is normal, and the price may be slightly lower. Second, the quality is also the key. For high-quality products, the preparation process may be more complex, and the selection of raw materials may be more refined, so the price is often higher than that of ordinary quality. Third, the amount of purchase is related to the price. If you buy in bulk, the merchant may give a discount to promote the quantity, and the price is lower than when you buy in small quantities.
And different regions and different suppliers have different prices. In prosperous commercial ports, the price may be slightly higher due to operating costs and other reasons; near the place of origin, the cost is slightly lower, and the price may be favorable. There are differences in the strategies of new and old suppliers. The new ones may give discounts for the purpose of expanding the market. The old ones may have different prices due to word-of-mouth.
As far as I know, the price of this chemical per gram may range from tens of yuan to hundreds of yuan. If the purchase quantity is very small, such as only a few grams, and the purity needs to be extremely high, the price may be nearly 100 yuan per gram or even higher. If it is required for the experiment, the batch is slightly larger, such as tens of grams, the price may be tens of yuan per gram. However, this is a rough guess, and the actual price needs to be consulted with chemical raw material suppliers, chemical trading platforms, etc., to be sure.