2% 2C4-dibromo-1% 2C5-divinylbenzene is an organic compound. It has a wide range of main uses and is often a key monomer for the preparation of high-performance polymers in the field of materials science. With its unique chemical structure, it can be interconnected with various monomers through polymerization, resulting in polymer materials with excellent mechanical properties, heat resistance and chemical stability. It is widely used in high-end industries such as aerospace and automobile manufacturing.
In the electronics industry, this compound also plays an important role. It can be used to make electronic packaging materials, printed circuit board substrates, etc. By participating in polymerization reactions, the electrical properties of materials can be improved, such as dielectric constant, insulation properties, etc., to ensure stable operation of electronic products.
Furthermore, in the field of organic synthesis chemistry, 2% 2C4-dibromo-1% 2C5-divinylbenzene is an important synthesis intermediate. Chemists can use its bromine atom and vinyl reactivity to build complex organic molecules through various organic reactions, such as Suzuki coupling reaction, Heck reaction, etc., providing key starting materials for new drug development and total synthesis of natural products.
And because of its double bond structure, it can participate in a variety of addition reactions to achieve precise modification of molecular structures, opening up avenues for the creation of organic compounds with special functions. Therefore, 2% 2C4-dibromo-1% 2C5-divinylbenzene is indispensable in many fields, promoting technological progress and development in various industries.

2% 2C4-dibromo-1% 2C5-divinylbenzene is an organic compound. Its physical properties are quite worthy of investigation, as follows:
Looking at its properties, under normal temperature and pressure, 2% 2C4-dibromo-1% 2C5-divinylbenzene is usually colorless to light yellow liquid, with a clear appearance and a certain degree of transparency. Its odor is specific and has the special smell of aromatic hydrocarbons. Although it is not pungent and intolerable, it can also be detected by people.
When it comes to boiling point, the boiling point of this compound is quite high, between 260 ° C and 270 ° C. The boiling point is higher, because of its relatively strong intermolecular force. The presence of bromine atoms and vinyl groups in the molecule increases the polarity of the molecule, and various forces can be formed between molecules, such as van der Waals forces, causing it to require a higher temperature to overcome the attractive forces between molecules, from liquid to gaseous state.
In terms of melting point, the melting point of 2% 2C4-dibromo-1% 2C5-divinylbenzene is relatively low, about -20 ° C. The lower melting point indicates that at this temperature, the thermal motion of the molecule is sufficient to overcome the lattice energy and cause the solid substance to transform into a liquid state. This property is related to its molecular structure. The shape and size of the molecule and the distribution of the substituents affect the close arrangement of the lattice, which in turn affects the melting point.
Solubility is also an important physical property. 2% 2C4-dibromo-1% 2C5-divinylbenzene is insoluble in water because water molecules are polar molecules. Although the compound molecule contains polar groups, it is relatively non-polar as a whole. According to the principle of "similar miscibility", it is difficult to dissolve in water. However, it is soluble in a variety of organic solvents, such as toluene, dichloromethane, ether, etc. The polarity and molecular structure of organic solvents are similar to 2% 2C4-dibromo-1% 2C5-divinylbenzene, which can form intermolecular forces and achieve mutual solubility. In terms of density, 2% 2C4-dibromo-1% 2C5-divinylbenzene is denser than water, about 1.6-1.7 g/cm ³. This is because the molecule contains bromine atoms with relatively large atomic mass, which increases the mass of the substance per unit volume, so the density is higher than that of water. If mixed with water, it will sink to the bottom of the water.

2% 2C4-dibromo-1% 2C5-divinylbenzene is one of the organic compounds. Its chemical properties are interesting and have unique reaction characteristics.
In this compound, the presence of bromine atoms and vinyl groups endows it with active chemical activity. Bromine atoms have strong electronegativity, which can change the electron cloud density distribution of the benzene ring, making the benzene ring more prone to electrophilic substitution. For example, under appropriate conditions, it can further brominate with electrophilic reagents such as bromine catalyzed by iron bromide, introducing more bromine atoms at specific positions in the benzene ring.
The double bond structure of vinyl groups is rich in electrons and has higher reactivity. Addition reactions can occur, such as with hydrogen under the action of a catalyst, the double bond is opened, and the hydrogenation reaction is carried out to convert into a saturated alkyl structure. It can also be added with electrophilic reagents such as hydrogen halide and halogen to introduce new functional groups at the double bond.
In addition, 2% 2C4-dibromo-1% 2C5-divinylbenzene contains multiple unsaturated bonds. Under the action of free radical initiators, it can participate in polymerization reactions to form polymer, which may have potential applications in the field of materials science. Its chemical properties are determined by the functional groups contained. Under different reaction conditions, it can exhibit various chemical changes, providing many possible paths for organic synthesis and material preparation.

There are several common methods for the synthesis of 2% 2C4-dibromo-1% 2C5-divinylbenzene:
One is the coupling method of halogenated aromatics. First, take aromatic hydrocarbons containing halogen atoms, such as halogenated benzene derivatives, and vinyl-containing reagents. Under the action of transition metal catalysts such as palladium and nickel, in a suitable organic solvent, after heating and stirring, the coupling reaction occurs. In this process, catalyst activity, reaction temperature and time are all key factors. If the temperature is too low, the reaction rate will be delayed; if the temperature is too low, the reaction rate will be delayed; if the temperature is too high, or the side reactions will increase. The reaction time also needs to be precisely controlled. If it is too short, the reaction will not be fully functional, and if it is too long, unnecessary by-products may be
The second is the reaction of olefins with halogenated reagents. Vinyl-containing benzene compounds are used as the starting material, and suitable brominating reagents are added to the system, such as liquid bromine, N-bromosuccinimide (NBS), etc. If liquid bromine is used, the reaction needs to be carried out at low temperature and the presence of catalysts such as iron powder or iron tribromide. Because liquid bromine is active, the reaction is violent, and the low temperature and catalyst can make the reaction smooth and controllable. When using NBS, the reaction conditions are relatively mild, and bromine atoms can be selectively introduced into the target site under the action of light or initiators.
The third is a synthesis method involving organometallic reagents. First prepare vinyl-containing organometallic reagents, such as vinyl Grignard reagent or vinyl lithium reagent, and then react with benzene derivatives containing bromine atoms. This method requires strict reaction conditions and requires an anhydrous and oxygen-free environment. Because organometallic reagents are very easy to react with water and oxygen, the reagents are inactivated. During the reaction, the choice of solvent is also crucial. Usually anhydrous ether, tetrahydrofuran and other solvents with good solubility and stable chemical properties to organometallic reagents are selected.
All synthesis methods have their own advantages and disadvantages. In practical application, the optimal synthesis path should be selected according to factors such as raw material availability, cost, reaction conditions and product purity requirements.

Today, there are 2,4-dibromo-1,5-divinylbenzene, which is quite concerned about the market price. Although we do not have the exact market situation at the moment, we can slightly describe the relevant.
This substance is a commonly used raw material in organic synthesis and has important uses in materials science, drug development and many other fields. Its price often varies depending on quality, purity, supply and demand.
If it is of ordinary purity, it is about tens to hundreds of yuan per gram. If the purity is very high, reaching the scientific research level, the price per gram may exceed 100 yuan, or even higher, to hundreds of yuan is unknown.
If the supply exceeds the demand, the price may decline; if the demand exceeds the supply, if the demand in a specific industry surges, the price may rise. And different merchants and regions have different prices. For accurate prices, consult chemical raw material suppliers and reagent sales platforms, where real-time prices can be obtained to meet needs.