4 Aminobenzotrifluoride
Fluoride
4-Aminobenzotrifluoride
Chemical Formula C7H6F3N
Molar Mass 161.124 g/mol
Appearance Colorless to pale yellow liquid
Density 1.292 g/cm³
Boiling Point 200 - 202 °C
Melting Point 1 - 2 °C
Flash Point 88 °C
Solubility In Water Insoluble
Solubility In Organic Solvents Soluble in many organic solvents
Pka 3.92
Vapor Pressure Low
FAQ

What are the main uses of 4-aminotrifluorotoluene?

4-Hydroxytrimethylbenzene, also known as metacylenol, its main uses are as follows:

First, it plays a key role in the field of pharmaceutical synthesis. It can be used as a starting material or intermediate for the preparation of many drugs. For example, when synthesizing some drugs with antibacterial and anti-inflammatory effects, 4-Hydroxytrimethylbenzene can be converted into structural units with specific pharmacological activities through a series of chemical reactions to build a core skeleton for drugs, which is of great significance for improving drug efficacy and optimizing drug performance.

Second, it also plays an important role in the fragrance industry. Due to its unique chemical structure, it can be modified and formulated to generate compounds that emit a special aroma. When blending some Fuqi fragrances and Oriental fragrances, the fragrance components derived from 4-hydroxytrimethylbenzene can give the fragrance a unique woody flavor and warm foundation, making the aroma rich and lasting. It is widely used in perfumes, air fresheners, detergents and other products.

Third, in the field of polymer materials, 4-hydroxytrimethylbenzene can be used as a monomer or modifier for polymerization reactions. Introducing it into the polymer structure can change the physical and chemical properties of the polymer, such as improving the thermal stability, mechanical properties and chemical resistance of the polymer. In the process of preparing high-performance engineering plastics and special fibers, 4-hydroxytrimethylbenzene plays this role, expanding the application of polymer materials in harsh environments such as aerospace, automobile manufacturing, and electronics.

Fourth, in the field of organic synthetic chemistry, it is an extremely important basic raw material. With its chemical activity of hydroxyl and methyl groups, it can participate in many organic reactions such as halogenation, alkylation, and esterification, providing the possibility for the construction of complex organic molecular structures, and assisting in the synthesis of a wide variety of organic compounds, which are widely used in scientific research experiments and industrial production.

What are the physical properties of 4-aminotrifluorotoluene?

4-Hydroxytrimethylbenzene is an organic compound with the following physical properties:
In terms of color and taste, pure 4-hydroxytrimethylbenzene is mostly white to light yellow crystalline powder at room temperature, close to the fine smell, with a slightly special aromatic smell.
At the melting point, the melting point is about 110 ° C - 114 ° C. At this temperature, the solid will gradually melt into a liquid; the boiling point is about 283 ° C. When heated to this temperature, the liquid will violently vaporize to form steam. This melting boiling point characteristic allows it to maintain the corresponding physical state under a specific temperature environment, which has a great impact on its storage, transportation and application. For example, when stored at room temperature, it exists stably in a solid state; in some processes that require heating reactions, when the temperature rises above the melting point, its liquid properties can be used to participate in the reaction.
In terms of solubility, it is slightly soluble in water, but easily soluble in organic solvents such as ethanol, ether, and chloroform. For example, in chemical experiments, if 4-hydroxytrimethylbenzene is to be dissolved for subsequent reactions, organic solvents such as ethanol can be selected as solvents to promote uniform dispersion, which is conducive to the full progress of the reaction. This difference in solubility is due to its molecular structure. The hydrophobic hydrocarbon group part it contains makes it difficult to dissolve in water with strong polarity, while the lipophilic characteristics make it easily soluble in organic solvents.
The density is about 1.011g/cm ³, which is similar to that of common organic solvents. This density property is crucial in operations involving mixed solutions. For example, when preparing mixed solutions, its distribution in the mixed system can be estimated based on density differences, and then uniform mixing or separation can be achieved by suitable means.
Volatility, its volatility is low, and it evaporates slowly at room temperature. This makes it unnecessary to worry too much about its rapid volatilization during storage and use, resulting in losses or environmental problems. However, in high temperature or poor ventilation environments, it is still necessary to operate with caution to prevent its vapor accumulation.

Is 4-Aminotrifluorotoluene Chemically Stable?

4-Hydroxytrimethylbenzene, also known as homotrimethylphenol, is chemically stable. Its stability is derived from multiple factors.

From the perspective of molecular structure, 4-hydroxytrimethylbenzene contains a benzene ring structure, and the benzene ring has a highly conjugated system. In the conjugated system, the electron cloud is widely distributed and evenly distributed, which endows the benzene ring with considerable stability. This structure makes it difficult for the benzene ring to be damaged by general chemical reagents. For example, when common electrophilic reagents want to attack the benzene ring, they need to overcome the stability of the conjugated system, so the reaction conditions are usually more severe.

Furthermore, the methyl and hydroxyl groups connected to the benzene ring also The methyl group acts as the donator group, and provides electrons to the benzene ring through induction effect and superconjugation effect, which increases the electron cloud density of the benzene ring. This not only enhances the resistance of the benzene ring to electrophilic reagents, but also stabilizes the electron cloud structure of the benzene ring to a certain extent. Although the hydroxyl group is also the donator group, the p-π conjugation effect formed with the benzene ring is more significant, which can effectively disperse the charge on the benzene ring and further enhance the stability of the benzene ring.

In addition, the bond energy between the atoms in 4-hydroxytrimethylbenzene is relatively large. The carbon-carbon bond, carbon-hydrogen bond and carbon-oxygen bond all have certain strength and require higher energy to break. For example, in order to break the carbon-carbon bond for a chemical reaction, conditions such as high temperature and strong catalyst are often required.

However, it should be noted that stability is a relative concept. Under specific conditions, such as strong oxidizing agents, high temperature and high pressure, and the presence of special catalysts, 4-hydroxytrimethylbenzene can also undergo chemical reactions. However, under conventional environments and general chemical operating conditions, 4-hydroxytrimethylbenzene exhibits high chemical stability due to its structure and bond energy properties.

What are the production methods of 4-aminotrifluorotoluene?

The preparation method of 4-hydroxytrimethylbenzene is not detailed in "Tiangong Kaiwu", but it can be deduced from the relevant ideas of ancient chemical processes.

The ancient method of preparing chemical substances is often based on natural materials and obtained by physical and chemical reactions. For 4-hydroxytrimethylbenzene, it may be derived from natural plants or minerals containing related structures.

If it comes from plants, first select plants rich in aromatic ring structure and may combine methyl and hydroxyl groups. For example, some coniferous plants, their resins and other components may have a similar structural basis. After obtaining such plant raw materials, extract them with water or organic solvents. Water extraction is mild, and the soluble polarity is slightly stronger. Organic solvents such as ethanol and ether have good extraction power for fat-soluble components. The extraction solution is separated by distillation and other methods according to the difference in boiling point of each component, and the fractions containing the target structure are concentrated and enriched.

From a mineral point of view, some ores containing aromatic hydrocarbon structures may be the starting point. After crushing and grinding into fine powder, they are treated with strong acid or strong base. Strong acids such as sulfuric acid can decompose and rearrange part of the structure of the ore; strong bases such as sodium hydroxide, or lead to the transformation of specific groups. After the reaction, impurities are removed by neutralization, filtration and other steps, and then purified by means of crystallization and chromatography.

Or through the organic synthesis path. Although the ancient method lacks the advanced reagents and equipment of today, simple organic raw materials and reactions can be used. For example, the derivative of benzene is used as the base, and the methyl is added by alkylation reaction. In ancient times, halogenated alkanes were used to react with benzene derivatives under the catalysis of Lewis acid. The hydroxyl group was introduced, or by oxidation reaction, with natural oxidants such as air, some metal oxides, etc., to oxidize specific positions on the benzene ring to hydroxyl groups. After multiple steps of separation and purification, 4-hydroxytrimethylbenzene was finally obtained. Although the ancient method is difficult to refine and the yield is low, the idea can be used for today's research.

What are the precautions for the storage and transportation of 4-aminotrifluorotoluene?

4-Hydroxytrimethylbenzene, this material needs to pay attention to many key matters during storage and transportation.

The first thing to pay attention to is its chemical properties. 4-Hydroxytrimethylbenzene has specific chemical activities, and a suitable container must be selected when storing. It is advisable to use anti-corrosive materials, such as glass or containers made of specific plastic materials, to prevent chemical reactions with the container and cause it to deteriorate. And make sure that the container is well sealed to avoid excessive contact with the air. Due to the oxidation of oxygen and other components in the air, the quality will be affected.

Second discussion on the storage environment. It should be placed in a cool, dry and ventilated place. High temperature can easily promote its chemical reaction and increase safety risks; humid environment or cause it to absorb moisture, which changes the physical and chemical properties. At the same time, keep away from fire sources, heat sources and strong oxidants. This substance may be flammable, and there is a risk of combustion and explosion in case of open flames and hot topics, and strong oxidants come into contact with it, or cause violent reactions.

Again, talk about the transportation link. Before transportation, it needs to be properly packaged. The packaging should be solid and can prevent damage and leakage of the container caused by collision and extrusion. During transportation, the temperature should be strictly controlled and the appropriate temperature range should be maintained according to its characteristics. And the transportation vehicle must also meet safety standards and be equipped with necessary fire protection and emergency equipment. Transportation personnel must be professionally trained and familiar with the characteristics of 4-hydroxytrimethylbenzene and emergency treatment methods. In case of emergencies, they can respond quickly and correctly to prevent the expansion of hazards. In conclusion, 4-hydroxytrimethylbenzene should be treated with caution during storage and transportation, from container selection and environmental control to transportation packaging and personnel handling, to ensure its safety and stability.