Chemical Formula | C20H28F2O |
Molecular Weight | 324.43 |
Appearance | Typically a liquid |
Boiling Point | N/A (specific value may vary depending on purity and conditions) |
Melting Point | N/A (specific value may vary depending on purity and conditions) |
Density | N/A (specific value may vary depending on temperature) |
Solubility | Solubility characteristics in common solvents like organic solvents (data may vary) |
Vapor Pressure | Low (qualitative, specific value depends on conditions) |
Flash Point | N/A (specific value may vary depending on purity and conditions) |
Refractive Index | N/A (specific value may vary depending on temperature and purity) |
Chemical Formula | C21H28F2O |
Appearance | Typically a liquid (due to its nature as a liquid crystal component) |
Solubility | Soluble in common organic solvents like toluene, dichloromethane, etc., due to its organic nature |
Vapor Pressure | Low vapor pressure as it is a relatively non - volatile compound typical for liquid crystal materials |
Refractive Index | Value related to its liquid crystal optical properties, usually in the range of 1.5 - 1.7 depending on the direction of light propagation (anisotropic property) |
Dielectric Constant | Anisotropic, with values in the range relevant to liquid crystal applications for controlling the alignment of molecules in an electric field |
What is the main use of 1-Ethoxy-2,3-difluoro-4- (trans-4-pentylcyclohexyl) -benzene
1-Ethoxy-2,3-difluoro-4- (trans-4-pentylcyclohexyl) benzene, which is mainly used in the field of liquid crystal materials. Liquid crystal materials are crucial in the development of electronic display technology, such as common liquid crystal displays (LCDs). The key to achieving image display lies in the unique optical and electrical properties of liquid crystal molecules.
1-ethoxy-2,3-difluoro-4- (trans-4-pentylcyclohexyl) benzene, as one of the liquid crystal materials, has several excellent characteristics and can meet the specific needs of display technology. First, the substance has a suitable phase transition temperature range. In the normal working temperature range, it can be stabilized in the liquid crystal phase, so that the liquid crystal display can operate normally at common ambient temperatures, ensuring the stability and reliability of image display. Second, its molecular structure endows the liquid crystal material with specific dielectric anisotropy and optical anisotropy. Dielectric anisotropy makes liquid crystal molecules sensitive to external electric fields and can quickly respond to changes in the electric field to change the arrangement direction; optical anisotropy causes light to pass through the liquid crystal layer, resulting in polarization state changes due to differences in the arrangement of liquid crystal molecules, thereby achieving light modulation and finally presenting a clear image.
In addition, in the formulation design of liquid crystal materials, 1-ethoxy-2,3-difluoro-4- (trans-4-pentyl cyclohexyl) benzene can be mixed with other liquid crystal compounds. By precisely adjusting the proportion of each component, the comprehensive properties of liquid crystal materials can be optimized, such as response speed, contrast, viewing angle characteristics, etc., to meet the requirements of different display application scenarios, such as computer screens, TV screens, mobile phone screens, etc., to provide a good display effect for various display devices.
What are the physical properties of 1-Ethoxy-2,3-difluoro-4- (trans-4-pentylcyclohexyl) -benzene
1-Ethoxy-2,3-difluoro-4- (trans-4-pentylcyclohexyl) benzene, an organic compound, has many applications in the field of materials science, especially in liquid crystal materials. Its physical properties are unique and are described in detail by you.
First of all, the melting point of this compound is suitable, and it is mostly within the temperature range of the liquid crystal state. The exact value of the melting point varies depending on the preparation method and purity, and is roughly in a specific range, which makes it possible to exhibit liquid crystal characteristics under ordinary conditions, and is widely used in the field of display technology.
Besides, the boiling point also varies due to factors such as purity, and usually has a certain volatility. The appropriate boiling point is conducive to its processing and application under specific process conditions, ensuring that in the manufacturing process of liquid crystal materials, through appropriate heat treatment, the required physical state transition is achieved, and the chemical structure stability can be maintained.
Looking at its solubility, it exhibits good solubility in organic solvents, such as common organic solvents, such as aromatics, halogenated hydrocarbons, etc., are soluble. This property is convenient for uniform mixing with other additives in the preparation of liquid crystal material solutions to optimize material properties.
When it comes to density, it is relatively moderate. This physical property matches well with other liquid crystal material components to ensure the stability of the mixing system. In the manufacturing of liquid crystal displays, it has a significant impact on the uniformity and stability of the liquid crystal layer.
Optical properties are also key. With specific optical anisotropy, it absorbs and refracts light differently in different directions. This characteristic allows it to change the orientation of molecules through the action of an electric field in a liquid crystal display, thereby regulating the propagation of light and realizing image display.
The dielectric constant also has characteristics. The polarization response is significant in the electric field, which is closely related to the driving voltage of the liquid crystal display. The appropriate dielectric constant ensures that the liquid crystal molecules respond quickly to the electric field signal, so that the display has fast image switching speed and good display effect. The combination of many physical properties of 1-ethoxy-2,3-difluoro-4- (trans-4-pentylcyclohexyl) benzene plays an important role in the field of liquid crystal materials and promotes the continuous development of display technology.
Is 1-Ethoxy-2,3-difluoro-4- (trans-4-pentylcyclohexyl) -benzene chemically stable?
1-Ethoxy-2,3-difluoro-4- (trans-4-pentylcyclohexyl) benzene, this is an organic compound. To know whether its chemical properties are stable, it is necessary to consider various reasons.
Looking at its structure, the benzene ring has a conjugated system, and the conjugated structure often confers certain stability to the compound. The π electron of the aromatic ring is delocalized, resulting in a decrease in its energy and a stable structure. The benzene ring in this molecule lays the foundation for its stability.
Look at the substituent again. Ethoxy is attached to the benzene ring, which has a donor effect and can increase the electron cloud density of the benzene ring. The change of moderate electron cloud density may enhance the stability of the benzene ring. The 2,3-difluorine atom is substituted, the fluorine atom is extremely electronegative, and has a strong electron-absorbing induction effect. Although the electron cloud density of the benzene ring is reduced, under certain circumstances, it may participate in the delocalization of intra-molecular electrons, which also affects the overall stability. The trans-4-amyl cyclohexyl group is a larger alkyl substituent, or it has an effect on the stability of the molecule due to the steric hindrance. The steric hindrance or changes the molecular conformation, which in turn affects the intramolecular interaction and stability.
From the theory of reactivity, the electrophilic substitution reactivity may change due to the change of the electron cloud density of the benzene ring. The ethoxy power supply may increase the activity of the ortho and para-position electrophilic substitution of the benzene ring; the fluorine atom absorbs electrons, or causes the relative change of the activity of the meta-position electrophilic substitution. However, the change of these reactivity is not directly equivalent to the stability. Stability is more about the ability of the compound to maintain its own structure under specific conditions.
Under normal circumstances, if there are no extreme conditions such as strong oxidizing agents, strong acids, and strong bases, the compound may be able to maintain structural stability. However, when it is at high temperature, high pressure, or in the presence of specific catalysts, its stability may be challenged, or various chemical reactions may be initiated, such as substitution, addition, etc.
In conclusion, the stability of 1-ethoxy-2,3-difluoro-4- (trans-4-pentylcyclohexyl) benzene is acceptable under conventional conditions, but it will also change with external conditions. Its stability needs to be accurately judged according to the specific environment and reaction conditions.
What is the production process of 1-Ethoxy-2,3-difluoro-4- (trans-4-pentylcyclohexyl) -benzene
1-Ethoxy-2,3-difluoro-4- (trans-4-pentylcyclohexyl) benzene is also an organic compound. Its preparation process is quite complicated, requiring delicate chemical skills and rigorous procedures.
Starting materials should be carefully selected. Such as selecting specific benzene derivatives, fluorine-containing reagents, etherification agents and pentylcyclohexyl-related compounds, which are the basis for preparation.
At the beginning of the reaction, the fluorination reaction of benzene ring is first applied. With fluorine-containing reagents, under appropriate temperature, pressure and catalyst assistance, the benzene ring is fluorinated at a specific position to form 2,3-difluorobenzene derivatives. This step requires precise temperature control, monitoring the progress of the reaction, and ensuring that the fluorination check point is accurate.
Then, pentyl cyclohexyl is introduced. The trans-4-pentyl cyclohexyl-related reactants are connected to the specific position of the benzene ring under suitable reaction conditions, or nucleophilic substitution, or condensation. This process requires attention to the ratio of reactants and the pH of the reaction environment to promote the smooth progress of the reaction and obtain the expected intermediate product. < Br >
The subsequent etherification step is crucial. With an ethoxylation reagent, under appropriate solvent and catalytic conditions, the ethoxyl group is attached to the benzene ring, and the target product is 1-ethoxy-2,3-difluoro-4- (trans-4-pentylcyclohexyl) benzene. At this stage, the control of the reaction conditions is also indispensable. Factors such as temperature and time are all related to the purity and yield of the product.
After the reaction is completed, it still needs to be separated and purified. Or use distillation to separate unreacted raw materials and products according to the different boiling points of each substance; or use chromatography to purify products by adsorption and distribution differences to achieve high purity requirements.
Preparation of 1-ethoxy-2,3-difluoro-4- (trans-4-pentyl cyclohexyl) benzene requires fine operation and strict control of conditions in each step to obtain satisfactory results.
What is the price range of 1-Ethoxy-2,3-difluoro-4- (trans-4-pentylcyclohexyl) -benzene in the market?
1-Ethoxy-2,3-difluoro-4- (trans-4-pentylcyclohexyl) benzene, which is on the market, its price range is difficult to determine. Its price often varies for many reasons, such as the source of the material, the method of preparation, the amount, the supply and demand of the market, and the different times.
If it is from the source of the material, if the raw material is easy to extract and rich, the price may decrease; if the raw material is thin and difficult to extract, the price must be high. As for the method of preparation, the method of ingenuity and efficiency may reduce its cost and lead to a price reduction; the method of difficulty, the cost increases, and the price also rises.
The amount of quantity is also the main reason. If you buy a large quantity, you may give a discount to promote sales, and the price can be low; if you buy a small quantity, the price will be high. The relationship between supply and demand in the city also affects its price. Demand is abundant but supply is small, and the price must rise; if supply exceeds demand, the price will drop.
The price varies from time to time. The rise and fall of the economy and the changes in the government can make its price fluctuate. To know the exact price, you should consult the business of chemical materials or check the relevant market information to get a near-real price. However, based on the current situation, it is difficult to determine the exact range of its market price.