Chemical Formula | C8H5F2N |
Molecular Weight | 153.13 |
Appearance | Colorless to light yellow liquid |
Boiling Point | 207 - 209 °C |
Density | 1.196 g/cm³ |
Flash Point | 83 °C |
Solubility In Water | Insoluble |
Solubility In Organic Solvents | Soluble in common organic solvents |
Refractive Index | 1.485 |
Chemical Formula | C8H5F2N |
Molecular Weight | 153.13 |
Appearance | Colorless to light yellow liquid |
Boiling Point | 195 - 197 °C |
Density | 1.194 g/cm³ |
Flash Point | 77 °C |
Solubility In Water | Insoluble |
Solubility In Organic Solvents | Soluble in common organic solvents like ethanol, ether |
Vapor Pressure | Low at room temperature |
Stability | Stable under normal conditions, but avoid strong oxidizing agents |
What are the main uses of 2,5-difluorobenzyl cyanide?
2% 2C5-diethylamino naphthalene, which is an organic compound. Its main uses are quite extensive.
First, in the field of dyes, 2% 2C5-diethylamino naphthalene can be used as a key intermediate. With its unique chemical structure, it can derive many colorful and stable dyes, which are used in textiles, printing and dyeing industries to give fabrics colorful colors, and the dyed materials have good color fastness, and can withstand multiple washes and light without fading.
Second, in the field of fluorescent materials, 2% 2C5-diethylamino naphthalene has excellent fluorescent properties. It can be used to prepare various fluorescent dyes and fluorescent probes, and can be used in biomedical imaging, environmental monitoring and other fields. In biomedical imaging, with the help of its fluorescence signal, it can accurately observe cell activities and molecular changes in organisms, which can help medical research and disease diagnosis; in environmental monitoring, it can keenly detect specific pollutants and provide a key basis for environmental protection.
Third, in the field of organic synthesis, 2% 2C5-diethylamino naphthalene is an important raw material and intermediate, participating in the synthesis of many organic compounds. Through clever chemical reactions, complex organic molecules can be constructed, laying the foundation for the development of pharmaceutical chemistry, materials science and other fields, and promoting the research and development of new drugs and high-performance materials.
What are the physical properties of 2,5-difluorobenzyl cyanide?
2% 2C5 -diethylaminoethylbenzene is one of the organic compounds. Its physical properties are as follows:
From the perspective of normal temperature and pressure, it is mostly colorless to light yellow liquid. Its color is pure, without obvious variegation and turbidity, and it is clear and discernible.
It has a special smell. This smell is not a pungent odor, but it is also unique. In a specific space, it can be keenly perceived by people.
In terms of its boiling point, it is about a certain temperature range. At this temperature, the substance gradually changes from liquid to gaseous state and undergoes a phase change. The boiling point value fluctuates slightly depending on the specific experimental conditions and the measurement accuracy, but the approximate range is relatively stable. < Br > The melting point is also a specific temperature value. When the ambient temperature drops to this melting point, 2% 2C5-diethylaminoethylbenzene solidifies from liquid to solid, and the morphology changes significantly.
In terms of density, the value reflects the mass per unit volume of the substance. Compared with common organic solvents, the density of 2% 2C5-diethylaminoethylbenzene has its own characteristics, or slightly greater than or slightly less than some common solvents. This characteristic is crucial in separation and mixing operations.
In terms of solubility, 2% 2C5-diethylaminoethylbenzene is soluble in some organic solvents, such as ethanol, ethyl ether, etc., which can be uniformly dispersed to form a homogeneous system. However, the solubility in water is poor. This difference is due to the characteristics of its molecular structure and polarity. The interaction between water molecules and the compound molecules is weak, so it is difficult to dissolve each other.
These physical properties are important factors in the fields of chemical synthesis and material preparation, which are related to the design of the process, the quality and performance of the product.
What are the chemical properties of 2,5-difluorobenzyl cyanide?
2% 2C5-diethylamino naphthalene is an organic compound. Its chemical properties are unique and it has important uses in many fields.
Looking at its physical properties, at room temperature, this substance is mostly in solid form, with white to light yellow color. Its physical constants such as melting point and boiling point are the key basis for identifying and separating the compound.
In terms of chemical activity, the naphthalene ring structure of 2% 2C5-diethylamino naphthalene gives it a certain stability. However, the diethylamino group attached to the naphthalene ring can significantly affect its chemical properties. Diethylamino is an electron supply group, which can increase the electron cloud density of the naphthalene ring, which in turn makes the naphthalene ring more prone to electrophilic substitution. For example, under appropriate reaction conditions, it can react with electrophilic reagents such as halogenated hydrocarbons and acyl halides to introduce new substituents on the naphthalene ring.
Furthermore, the nitrogen atom in 2% 2C5-diethylamino naphthalene contains lone pair electrons, making it alkaline to a certain extent. In an acidic environment, it can accept protons and generate corresponding salts. This property may have important application value in some organic synthesis reactions and drug development fields.
In addition, the compound may also participate in oxidation-reduction reactions. Naphthalene rings can be oxidized under specific conditions, and diethylamino groups may also undergo oxidation or reduction transformation in some reactions.
In the field of organic synthesis, 2% 2C5-diethylamino naphthalene is often used as an important intermediate. With its unique chemical properties, more complex organic molecular structures can be constructed through a series of reactions, laying the foundation for the preparation of various organic compounds with specific functions.
In summary, the chemical properties of 2% 2C5-diethylamino naphthalene are rich and diverse, occupying an indispensable position in organic chemistry and related industrial fields, providing a broad space for many scientific research and practical applications.
What are the synthesis methods of 2,5-difluorobenzyl cyanide?
There are various ways to synthesize 2% 2C5-diethylaminoethylbenzene. First, ethylbenzene can be obtained by halogenating ethylbenzene and then reacting with diethylamine. In this way, ethylbenzene is first reacted with halogens (such as bromine or chlorine) under appropriate conditions to form halogenated ethylbenzene. This halogenation reaction requires light, heat, or the help of a catalyst to initiate the reaction. The resulting halogenated ethylbenzene is then reacted with diethylamine in the presence of a base. The base can neutralize the hydrogen halide formed by the reaction and promote the forward reaction, and finally obtain 2% 2C5-diethylaminoethylbenzene.
Second, it can be started from styrene. Styrene is first added to hydrogen halide to obtain halogenated ethylbenzene derivatives. The subsequent steps are similar to those of the self-ethylbenzene initiator, that is, it reacts with diethylamine under alkali catalysis. The addition of styrene to hydrogen halide follows the Markov rule. The hydrogen atom is added to the double-bonded carbon atom containing more hydrogen to obtain the halogenated ethylbenzene with a specific structure. After the substitution reaction with diethylamine, the target product is obtained.
There are also those who use 2% 2C5-dinitroethylbenzene as the raw material. First, 2% 2C5-dinitroethylbenzene is reduced to 2% 2C5-diaminoethylbenzene. Commonly used reducing agents such as iron and hydrochloric acid, hydrogen and catalysts (such as palladium Then, 2% 2C5-diaminoethylbenzene is alkylated with haloethane to obtain 2% 2C5-diaminoethylbenzene. During this process, the reduction step needs to pay attention to the control of the reaction conditions to ensure that the nitro group is completely reduced to the amino group without affecting the structure of the benzene ring and ethylbenzene side chain; the alkylation reaction also needs to select suitable reaction solvents and bases to optimize the reaction yield and selectivity.
All synthesis methods have their own advantages and disadvantages, and need to be carefully selected according to actual needs, such as the availability of raw materials, cost, and difficulty of reaction conditions.
What are the precautions for storing and transporting 2,5-difluorobenzyl cyanide?
For 2% 2C5-diethylphenylalanine, all things must be carefully stored and transported.
When storing, the first environment is appropriate. It must be placed in a cool, dry and well-ventilated place, away from fire and heat sources. Because the substance is heated or exposed to open fire, it may be dangerous. The temperature of the warehouse should not be too high, and the humidity should be properly regulated to prevent deterioration. In addition, it should be placed separately from oxidants, acids, bases, etc., and should not be mixed. Due to its active chemical properties, it is easy to react with various substances and cause accidents. And suitable materials must be prepared to contain leaks, just in case.
During transportation, it should not be ignored. The carrying vehicle must ensure that the vehicle is in good condition and has corresponding safety facilities and signs. When driving, the driver should abide by the traffic rules, drive slowly and steadily, avoid sudden brakes and sharp turns, and avoid damage and leakage of the goods. When loading and unloading, the operator must wear appropriate protective equipment, light loading and unloading, and strictly prohibit bumping, heavy pressure and friction to prevent package damage. In case of leakage, immediately follow the established emergency measures to deal with it, evacuate the surrounding people, seal the scene, quickly absorb or contain inert materials such as sand and vermiculite, and then properly clean up and dispose of it.
In short, every link of 2% 2C5-diethylphenylalanine storage and transportation is related to safety, and it cannot be slack a little. It must be done according to the norms to ensure that nothing goes wrong.