4 '-Butoxy-4-ethyl-2', 2 ', 3' -trifluoro- [1,1 ': 4', 1 '] -terphenyl What are the main application fields?

4 '-Butoxy-4-ethyl-2', 2 ', 3' -trifluoro- [1,1 ': 4', 1 '] -terphenyl is an organic compound. This compound has important applications in the field of materials science, especially in the field of organic optoelectronic materials.

In the manufacture of organic Light Emitting Diodes (OLEDs), which can be used as light-emitting layer or transport layer materials. Due to its unique molecular structure and the introduction of fluorine atoms, the electron transport properties and luminous efficiency of materials can be improved. Fluorine atoms have strong electronegativity, which can adjust the electron cloud distribution of molecules, improve electron injection and transport capabilities, and then improve the performance of OLED devices, such as increasing luminous efficiency, reducing driving voltage and extending service life.

In the field of organic field effect transistors (OFETs), this compound may be used as a semiconductor active layer material. Its rigid conjugate structure and specific substituents can form ordered molecular stacks, which is conducive to charge transfer. The presence of fluorine atoms can adjust the electrical properties of the material, improve the carrier mobility and stability of OFETs, and is essential for the construction of high-performance OFET devices.

In the field of liquid crystal materials, this compound may have liquid crystal properties. Its rod-like molecular structure and fluorine substituents can make the molecules arranged in an orderly manner and exhibit the liquid crystal phase. In display technology, the optical anisotropy and electric field response of liquid crystal materials can be used to manufacture liquid crystal displays (LCDs) to achieve the purpose of image display. By adjusting the molecular structure and fluorine atom position, the phase transition temperature and liquid crystal phase characteristics of liquid crystal materials can be adjusted to meet the needs of different display applications.

In short, 4 '-Butoxy-4-ethyl-2', 2 ', 3' -trifluoro- [1,1 ': 4', 1 '] -terphenyl, with its unique structure and properties, has important application value in the field of organic optoelectronic materials, such as OLED, OFET and liquid crystal materials, and is of great significance to promote the development of related display and electronic device technologies.

What are the physical properties of 4 '-Butoxy-4-ethyl-2', 2 ', 3' -trifluoro- [1,1 ': 4', 1 '] -terphenyl

4 '-butoxy-4-ethyl-2', 2 ', 3' -trifluoro- [1,1 ': 4', 1 '] -terphenyl, the physical properties of this substance are particularly critical. Its shape or crystalline state has a specific melting point and boiling point. The melting point is the temperature at which a substance changes from a solid state to a liquid state. The melting point of this compound is related to its phase transition under specific conditions and is crucial in many applications. The same is true for boiling points. The temperature at which a substance converts from a liquid state to a gas state has a profound impact on its behavior in a high temperature environment.

Furthermore, its solubility cannot be ignored. In common organic solvents, such as aromatic hydrocarbons and halogenated hydrocarbons, the solubility varies. In aromatic hydrocarbon solvents, it may have better solubility, due to the similarity of molecular structure, according to the principle of similar miscibility, or good mutual solubility. In halogenated hydrocarbon solvents, the solubility may vary depending on the type, number and location of halogen atoms.

In addition, the density of the substance is one of its physical properties. Density reflects the mass of its unit volume, which has a significant impact in actual operation, such as mixing, separation, etc. And its refractive index also has characteristics. The refractive index is related to the degree of refraction of light when passing through the substance, which is of great significance in the application field of optics.

In addition, the thermal stability of this compound is also an important physical property. Thermal stability characterizes its ability to maintain its own structure and properties under heat. If the thermal stability is good, it is not easy to decompose and isomerize in high temperature environments, and can be widely used in scenarios that require tolerance to a certain temperature.

All these physical properties are interrelated and jointly determine the application potential and actual performance of 4 '-butoxy-4-ethyl-2', 2 ', 3' -trifluoro- [1,1 ': 4', 1 '] -terphenyl in different fields.

What is the chemical stability of 4 '-Butoxy-4-ethyl-2', 2 ', 3' -trifluoro- [1,1 ': 4', 1 '] -terphenyl?

The chemical stability of 4 '-butoxy-4-ethyl-2', 2 ', 3' -trifluoro- [1,1 ': 4', 1 '] -biphenyl has been discussed for a long time. Looking at its molecular structure, the distribution of butoxy, ethyl and trifluoride atoms has a great impact on its stability.

Butyloxy, containing carbon and oxygen chains, has certain flexibility and spatial resistance. In the molecule, it can use the space effect to prevent external reagents from approaching the molecular core, which is like building a protective barrier for the molecule and helps to improve chemical stability.

The presence of 4-ethyl also adds a steric barrier. The extension of the carbon chain of ethyl makes the local structure of the molecule more complex, and the reaction of foreign substances with it needs to overcome higher energy barriers, thereby enhancing stability.

The introduction of 2 ', 2' ', 3' -trifluorine atoms is particularly crucial. Fluorine atoms are extremely electronegative, and after bonding with carbon atoms, the electron cloud strongly favors fluorine atoms, resulting in extremely stable carbon-fluorine bonds. This stable carbon-fluorine bond is difficult to break by general reagents in chemical reactions. And the fluorine atomic radius is small, which can fill the gap in the molecular structure, optimize the molecular accumulation, make the overall structure more compact, and further enhance the chemical stability.

However, the chemical stability does not only depend on the molecular structure, but also has an important impact on the external environment. In case of extreme conditions such as high temperature, strong acid, strong base or strong oxidant, even if the structure is stable, 4 '-butoxy-4-ethyl-2', 2 ', 3' -trifluoro- [1,1 ': 4', 1 '] -biphenyl may also undergo chemical reactions, resulting in structural changes and impaired stability.

In summary, 4 '-butoxy-4-ethyl-2', 2 ', 3' -trifluoro-[ 1,1 ': 4', 1 '] -terphenyl, due to its unique molecular structure, has certain chemical stability under conventional conditions, but changes in the external environment cannot be ignored.

What is the synthesis method of 4 '-Butoxy-4-ethyl-2', 2 ', 3' -trifluoro- [1,1 ': 4', 1 '] -terphenyl

To prepare 4% 27% 27-butoxy-4-ethyl-2%27%2C2%27%27%2C3%27%27-trifluoro- [1% 2C1% 27:4% 27% 2C1% 27% 27] -terphenyl, the method is as follows:
First take an appropriate amount of starting material, which must have a benzene ring related structure and contain modifiable groups, such as halogenated benzene derivatives or benzene with active substituents. Start with suitable halogenated benzene, add an appropriate amount of base, such as potassium carbonate, sodium carbonate, etc. in an inert solvent, such as toluene, tetrahydrofuran, etc., to help the reaction proceed. < Br > When introducing the butoxyl group, the corresponding halogenated butane or butanol derivative can be selected. In the presence of a catalyst, such as a palladium-based catalyst (such as tetra (triphenylphosphine) palladium, etc.), the butoxyl group is connected to a specific position in the benzene ring through a coupling reaction. This process requires controlling the reaction temperature and time, usually between 50 and 100 ° C, and the reaction takes several hours to ten hours. Depending on the monitoring of the reaction process, the reaction can be tracked by thin layer chromatography (TLC).
When introducing ethyl group, similarly, with a suitable halogenated ethane or ethylation reagent, under similar reaction conditions, the ethyl group is connected to the benzene ring by a coupling reaction. < Br > The trifluoro group can be introduced by a specific fluorine-containing reagent, such as a trifluoromethylation reagent. Some reagents need to be reacted under harsh conditions without water and oxygen to ensure the smooth progress of the reaction. In different temperature ranges from low temperature to room temperature, under the action of appropriate catalysts or initiators, fluorine atoms can precisely replace hydrogen atoms or other groups at specific positions.
After each step of the reaction is completed, it needs to be separated and purified. The target product is separated by column chromatography with a suitable eluent, such as a mixed solvent of petroleum ether and ethyl acetate, according to the difference between the product and the polarity of the impurities. Finally, a pure 4% 27% 27-butoxy-4-ethyl-2%27%2C2%27%27%2C3%27%27-trifluoro- [1% 2C1% 27:4% 27% 2C1% 27% 27] -terphenyl can be obtained.

4 '-Butoxy-4-ethyl-2', 2 ', 3' -trifluoro- [1,1 ': 4', 1 '] -terphenyl What is the price range in the market?

I look at your question, but I am inquiring about the price range of "4 '-Butoxy-4-ethyl-2', 2 " , 3 '-trifluoro- [1,1': 4 ', 1'] -terphenyl" in the market. However, this product is also a fine chemical, and its price is affected by many factors, which is difficult to hide.

First, purity is the key. If the purity is very high, it is suitable for high-end scientific research or special industrial use, and the price is high; if the purity is slightly lower, it is mostly used for general experiments or basic production, and the price is relatively low.

Second, the supply and demand trend also has an impact. If the market demand is strong and the supply is limited, the price will rise; conversely, if the supply exceeds the demand, the price may decline.

Third, the difference between sources and brands. Imported well-known brands, due to quality control and R & D investment, the price may be higher than that of domestic equivalents.

As far as the current market situation is concerned, if it is ordinary purity, the price per gram may be between tens of yuan and hundreds of yuan; if it is high purity, especially for high-end fields, it may reach hundreds of yuan per gram, or even higher. However, this is only a rough estimate. The actual price needs to be negotiated with the relevant suppliers in detail and determined according to specific specifications and quantities.