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What are the main uses of 2-Bromo-1- (Bromomethyl) -4-Fluorobenzene?
2-Bromo-1- (bromomethyl) -4-fluorobenzene, which is a crucial chemical raw material in the field of organic synthesis. It has a wide range of uses and plays a key role in many fields.
In the field of pharmaceutical synthesis, this compound has a significant status. Because its structure contains halogen atoms and active methyl groups, it can be used as a key intermediate for the synthesis of drug molecules with specific biological activities. Through the nucleophilic substitution reaction of halogen atoms, it can react with various nucleophiles containing nitrogen, oxygen, sulfur and other nucleophiles to build the core skeleton of drug molecules, and then synthesize drugs with antibacterial, anti-inflammatory, anti-tumor and other effects. For example, in the research and development of some new antibacterial drugs, 2-bromo-1- (bromomethyl) -4-fluorobenzene is combined with nitrogen-containing heterocyclic compounds through a series of reactions to successfully produce drugs with high inhibitory effect on specific drug-resistant bacteria.
In the field of materials science, this compound also has important uses. Due to its structural properties, it can participate in the synthesis of polymer materials. By polymerizing with suitable monomers, polymer materials can be endowed with unique properties. If polymerized with double-bond-containing monomers, polymers with excellent optical properties and thermal stability can be prepared for the manufacture of optical lenses, optical fibers and other materials.
2-bromo-1- (bromomethyl) -4-fluorobenzene is also often found in the field of pesticide synthesis. As a key intermediate in the synthesis of pesticides, using its active chemical properties, a variety of high-efficiency and low-toxicity pesticides can be synthesized. After appropriate reaction, it is converted into pesticide molecules containing specific functional groups, which have high-efficiency contact and gastric toxicity to pests, providing strong support for agricultural pest control.
2-bromo-1- (bromomethyl) -4-fluorobenzene, as an important raw material for organic synthesis, plays an important role in the fields of medicine, materials, pesticides, etc., and promotes the continuous development and progress of various fields.
What are the synthesis methods of 2-Bromo-1- (Bromomethyl) -4-Fluorobenzene?
To prepare 2-bromo-1- (bromomethyl) -4-fluorobenzene, the method of organic synthesis is often followed. The common method is to use 4-fluorotoluene as the starting material.
First, 4-fluorotoluene and bromine are subjected to free radical substitution reaction under the action of light or initiator. This step aims to introduce a bromine atom to the methyl group to obtain 4-fluoro-benzyl bromide. During the reaction, it is necessary to pay attention to the control of the reaction conditions. Light intensity, temperature and reaction time are all critical. Too much light or too long time may cause the formation of polybrominates; otherwise, the yield is not good.
Then, let 4-fluoro-benzyl bromide and brominating agent, such as N-bromosuccinimide (NBS), in an appropriate solvent, such as carbon tetrachloride, with benzoyl peroxide as the initiator, and then perform a substitution reaction to introduce bromine atoms at the ortho-position of the benzene ring, so 2-bromo-1- (bromomethyl) -4-fluorobenzene is obtained. In this step, the properties of the solvent and the amount of the initiator have a great influence on the reaction process and the purity of the product.
There are also 4-fluorobenzaldehyde as the starting material. First, 4-fluorobenzaldehyde is reduced by a reducing agent such as sodium borohydride to obtain 4-fluorobenzyl alcohol. During the reduction process, the reaction temperature and the amount of reducing agent are controlled to prevent excessive reduction or side reactions.
Then 4-fluorobenzyl alcohol is reacted with halogenating agents such as hydrobromic acid, so that the hydroxyl group is replaced by a bromine atom to obtain 4-fluoro-benzyl bromide. After the same method, it reacts with NBS to introduce bromine atoms at the ortho-position of the benzene ring, and the target product can also be obtained.
In the process of synthesis, each method has its own advantages and disadvantages. It is necessary to consider various factors such as the availability of raw materials, cost, yield and product purity according to actual needs, and carefully select and carefully control them to achieve the purpose of synthesis.
What are the physical properties of 2-Bromo-1- (Bromomethyl) -4-Fluorobenzene?
2-Bromo-1- (bromomethyl) -4-fluorobenzene is also an organic compound. Its physical properties have the following characteristics.
Looking at its properties, at room temperature, it is mostly colorless to light yellow liquid, but it may also vary slightly in appearance due to the presence of impurities. This compound has a certain degree of volatility and can slowly dissipate in the air. Its smell is specific and pungent, warning everyone to be cautious.
When it comes to the melting point, the melting point is relatively low, and the specific value is around - [X] ° C. This property allows it to maintain a liquid state in a low temperature environment. The boiling point is slightly higher, about [X] ° C, which indicates that a considerable amount of heat needs to be applied to make it boil and vaporize.
In terms of density, it is heavier than water. If mixed with water, it will sink underwater due to its molecular structure and composition. In terms of solubility, it has good solubility in organic solvents such as ethanol, ether, dichloromethane, etc. Due to the principle of "similar miscibility", the force between organic solvents and 2-bromo-1- (bromomethyl) -4-fluorobenzene is similar. However, in water, its solubility is very small, because the polarity of the molecule is quite different from that of water, and it is difficult for water molecules to form effective interactions with the compound molecules.
In addition, the refractive index of 2-bromo-1- (bromomethyl) -4-fluorobenzene also has a specific value, which reflects the degree of refraction of light when passing through the substance, which is one of the important parameters for the identification and analysis of the substance. In short, its physical properties are unique, and its application in organic synthesis and related fields depends on these characteristics.
2-Bromo-1- (Bromomethyl) -4-Fluorobenzene What to pay attention to when storing
2-Bromo-1- (bromomethyl) -4-fluorobenzene is an organic compound. When storing, many things need to be paid attention to.
First, this compound is quite sensitive to light. Under light, it may cause chemical reactions to occur, resulting in structural changes or deterioration. Therefore, it should be stored in a brown bottle and placed in a dark place to avoid light.
Second, the compound has a certain volatility, and the chemical activity of bromine and fluorine-related groups is quite high. If the storage temperature is too high, its volatilization rate will accelerate, and at the same time, it may cause adverse reactions such as thermal decomposition. Therefore, it needs to be stored in a low temperature environment. Generally speaking, it is better to refrigerate and control the temperature at 2-8 ° C.
Third, when 2-bromo-1- (bromomethyl) -4-fluorobenzene is damp, the halogenated hydrocarbon group or hydrolysis affects its purity and quality. Therefore, it needs to be stored in a dry place, and a desiccant can be placed in the storage container to maintain a dry environment.
Fourth, because it is an organic halide, it is toxic and corrosive to a certain extent. During storage, make sure that the container is well sealed to prevent leakage, so as not to endanger human health and avoid pollution to the environment. After taking it, the container should be sealed as before.
Fifth, this compound is a chemical, and the storage place must be clearly marked, indicating the name, properties, hazards and other key information. And should be stored separately from oxidizing agents, reducing agents, alkalis and other substances to prevent chemical reactions caused by improper mixing and endanger safety.
What is the market price of 2-Bromo-1- (Bromomethyl) -4-Fluorobenzene?
I am inquiring about the market price of 2-bromo-1- (bromomethyl) -4-fluorobenzene. However, it is not easy to understand the market price of this chemical.
The price of this chemical often changes due to various factors. The first one is the price of the raw material. If the price of the various raw materials required for the synthesis of this product rises or falls, the price of 2-bromo-1- (bromomethyl) -4-fluorobenzene also fluctuates.
Furthermore, the complexity and cost of the production process are also key. If the craftsmanship is exquisite and can reduce consumption and increase efficiency, the price may be close to the people; conversely, if the craftsmanship is complicated and the cost is huge, the price will be high.
The situation of supply and demand in the market also affects its price. If there are many people who want it, but there are few people who supply it, the price will tend to rise; if the supply exceeds the demand, the price may fall.
In addition, regional differences also have an impact. Different places may have different prices due to differences in transportation costs and taxes.
As for the exact price, it is difficult to say in a word. To know the details, when consulting chemical raw material suppliers, traders, or in the professional chemical products trading platform, market survey report to find more accurate price.