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What are the chemical properties of 1-bromo-4-iodo-2- (trifluoromethoxy) benzene
1 - bromo - 4 - iodo - 2 - (trifluoromethoxy) benzene, this is an organic compound. Its chemical properties are unique and allow me to elaborate.
First, in this compound, bromine (Br) and iodine (I) are halogen atoms, giving it the characteristics of halogenated aromatics. The presence of halogen atoms makes this compound participate in many nucleophilic substitution reactions. For example, under appropriate nucleophilic reagents and reaction conditions, bromine or iodine atoms can be replaced by nucleophilic groups. If the nucleophilic reagent is an alkoxide (RO), nucleophilic substitution can occur to generate corresponding ether compounds.
Furthermore, the trifluoromethoxy group (-OCF
) in the molecule also affects its chemical behavior. Trifluoromethoxy has strong electron-absorbing properties, which will reduce the electron cloud density of the benzene ring, which in turn affects the electrophilic substitution reaction on the benzene ring. Compared with benzene derivatives without this group, its electrophilic substitution activity is reduced, and the substitution position is also affected. Generally speaking, electrophilic reagents tend to attack positions with relatively high electron cloud density on the benzene ring.
At the same time, this compound also has unique performance in redox reactions. Halogen atoms can be oxidized or reduced under certain conditions. For example, in certain reduction systems, bromine or iodine atoms can be reduced to corresponding halogen ions and separated from the benzene ring.
In addition, due to the special structure of trifluoromethoxy group, the compound has certain stability and chemical inertness. The strong electron-absorbing effect of trifluoromethoxy (-CF 🥰) and the conjugation effect of oxygen atom and benzene ring make the molecular structure relatively stable, and it is not easy to decompose or other side reactions under some common chemical reaction conditions.
In summary, 1-bromo-4-iodo-2 - (trifluoromethoxy) benzene has rich and diverse chemical properties. Halogen atoms and trifluoromethoxy groups jointly determine its behavior in various chemical reactions, providing many possible reaction paths and application prospects for organic synthetic chemistry.
What is the common synthesis method of 1-bromo-4-iodo-2- (trifluoromethoxy) benzene?
1 - bromo - 4 - iodo - 2 - (trifluoromethoxy) benzene has various common synthesis methods. One is to use phenolic compounds as starting materials. Phenols and trifluoromethoxy halides can undergo nucleophilic substitution under basic conditions to form a benzene ring structure containing trifluoromethoxy. For example, phenol and trifluoromethoxy bromide can be obtained by heating and stirring in an appropriate solvent such as N, N - dimethylformamide (DMF) under the catalysis of potassium carbonate and other bases. 2 - (trifluoromethoxy) phenol intermediates can be obtained.
Then, 2- (trifluoromethoxy) phenol is halogenated. First, the phenyl ring is iodized under mild conditions with an iodizing agent, such as iodine elemental substance and an appropriate oxidizing agent, such as hydrogen peroxide or nitric acid, etc., and the iodine atom is introduced at the phenolic hydroxyl group to generate 4-iodo-2 - (trifluoromethoxy) phenol. After that, a suitable brominating agent, such as N-bromosuccinimide (NBS), is selected, and the bromine atom is introduced at the ortho position in the presence of light or initiator, so 1-bromo-4-iodo-2 - (trifluoromethoxy) benzene is obtained.
Another way is to use benzene as the starting material and nitrate to obtain nitrobenzene. Then the nitro group is reduced to an amino group to form an aniline. Aniline is introduced into iodine atom by diazotization reaction with potassium iodide to obtain iodobenzene. Iodobenzene reacts with trifluoromethyl halogenation reagent and base to introduce trifluoromethoxy group. Finally, through bromination reaction, bromine atom is introduced at a suitable position to obtain the target product. All these methods are common routes for the synthesis of 1-bromo-4-iodo-2 - (trifluoromethoxy) benzene, each has its own advantages and disadvantages, and needs to be selected according to the actual situation.
In which fields is 1-bromo-4-iodo-2- (trifluoromethoxy) benzene used?
1 - bromo - 4 - iodo - 2 - (trifluoromethoxy) benzene is an organic compound that has applications in many fields.
In the field of medicinal chemistry, it is often used as a key intermediate. Due to its unique structure, it contains groups such as bromine, iodine and trifluoromethoxy, which can be used to construct complex drug molecular structures through organic synthesis reactions. For example, through halogenated hydrocarbon reactions, bromine and iodine atoms can be replaced by nucleophiles, introducing various functional groups, laying the foundation for the development of specific biologically active drugs, such as innovative drugs targeting specific disease targets.
In the field of materials science, this compound is also useful. Because it contains trifluoromethoxy, it can endow materials with special physical and chemical properties, such as improving the corrosion resistance and thermal stability of materials. By introducing it into polymer materials, the surface properties of materials can be improved, and high-performance coating materials can be prepared for use in aerospace, automotive and other fields to improve the durability and protective properties of materials.
In the field of organic synthetic chemistry, 1-bromo-4-iodo-2 - (trifluoromethoxy) benzene, as an important starting material, can participate in a variety of coupling reactions by virtue of the reactivity of bromine and iodine atoms, such as Suzuki coupling, Stille coupling, etc., to synthesize biphenyl compounds with diverse structures, providing organic synthetic chemists with an effective way to construct complex organic molecular structures and assisting in the total synthesis of new organic functional materials and natural products.
What are the physical properties of 1-bromo-4-iodo-2- (trifluoromethoxy) benzene?
1 - bromo - 4 - iodo - 2 - (trifluoromethoxy) benzene is an organic compound with unique physical properties. This compound is mostly liquid at room temperature and pressure. Due to its molecular structure containing benzene rings, various halogen atoms and special alkoxy groups, it has specific physical properties.
Looking at its appearance, it may be a colorless to light yellow clear liquid, which is volatile and can slowly emit odor in the air. Its odor may be unique due to the halogen atoms and functional groups it contains, pungent and irritating.
Talking about the boiling point, due to the intermolecular force, the intermolecular force caused by halogen atoms and polar groups is enhanced, and the boiling point is relatively high, about 180-200 ° C. This boiling point characteristic makes it possible to achieve the goal by means of distillation in the process of separation, purification and reaction.
In terms of melting point, the regularity and force of the molecular structure affect its melting point, which is presumed to be in the range of -20-0 ° C. Lower melting point or cause it to be in a liquid state near room temperature, which brings convenience to operation and use.
In terms of solubility, the compound is an organic compound. It follows the principle of similar phase solubility and is easily soluble in common organic solvents, such as dichloromethane, chloroform, ether, etc. Because the organic solvent has a similar structure to the compound, the intermolecular forces can interact to promote dissolution. However, the solubility in water is extremely poor, because it is a non-organic polar molecule, the force between it and water molecules is weak, making it difficult to form a stable dispersion system.
Density is also an important physical property, because it contains bromine, iodine and other atoms with relatively large atomic mass, resulting in an increase in molecular weight and a higher density than water. In experimental or industrial applications, this property makes the phenomenon of stratification appear, which is convenient for separation by means of liquid separation.
What is the market price of 1-bromo-4-iodo-2- (trifluoromethoxy) benzene?
I look at the "1 - bromo - 4 - iodo - 2 - (trifluoromethoxy) benzene" you are inquiring about, and the market price of this product is difficult to determine. The price of this product is determined by many factors, just like a boat traveling in the sea, made by the wind.
First, the price of raw materials is the key. In the synthesis of this compound, if the raw materials used are easy to obtain and the price is stable, the cost can be controlled, and the price may not be high; on the contrary, if the raw materials are rare and need to be purchased by many parties, and the price will rise.
Second, the preparation method also has an impact. If the preparation process is simple and easy, energy consumption is low, and the yield is high, the cost can be reduced; however, if the process is complicated, special equipment is required, harsh conditions are required, and manpower and material resources are consumed, the price will increase.
Third, the state of market supply and demand is the cardinal that determines the price. If there are many people in the market, but the supply is limited, just like water in a dry time, the price will soar; if the supply exceeds demand, such as accumulated wages in the market, the price may fall.
Fourth, the place of production and the route of transportation are also related to the price. The distance of origin, the difficulty of transportation, and the level of taxes and fees can all make the price fluctuate.
Today in the market, there is no fixed price. To know the details, you can consult the chemical raw material supplier, or visit a professional chemical trading platform to get the actual price. However, the price may change like the situation, and it cannot be limited to a temporary number.