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What are the main uses of 1-Bromo-3- (Tert-Butyl) -5-Fluorobenzene?
1-Bromo-3- (tert-butyl) -5-fluorobenzene is also an organic compound. It has a wide range of uses and is often used as a key intermediate in the field of organic synthesis.
In the molecular structure of Gein, bromine atoms, tert-butyl and fluorine atoms have their own characteristics, giving this compound unique reactivity. Bromine atoms have good activity and can participate in many nucleophilic substitution reactions. When preparing specific drug molecules, bromine atoms can be replaced by other functional groups by nucleophilic substitution reactions, thus building a complex molecular structure and laying the foundation for the creation of new drugs.
Furthermore, in the field of materials science, this compound is also useful. Due to the fluorine atoms in its structure, it can enhance the stability and weather resistance of the material. For example, introducing it into polymer materials can improve the physical and chemical properties of the material, making the material more durable and functional in a specific environment. The presence of
tert-butyl also affects the spatial structure and electron cloud distribution of the molecule. This effect can change the solubility and reaction selectivity of the compound. In some organic synthesis reactions, the steric resistance effect of tert-butyl can be used to guide the reaction in a specific direction, improving the yield and purity of the target product.
In summary, 1-bromo-3- (tert-butyl) -5-fluorobenzene is an important compound in the fields of organic synthesis and materials science, with significant application value.
What are the physical properties of 1-Bromo-3- (Tert-Butyl) -5-Fluorobenzene?
1-Bromo-3- (tert-butyl) -5-fluorobenzene is also an organic compound. Its physical properties are quite important and are related to many chemical applications.
Looking at its properties, it may be a colorless to pale yellow liquid under normal conditions, with a special odor. This is due to the presence of bromine, fluorine atoms and tert-butyl in the molecular structure, which affects the intermolecular force, causing it to appear in this state.
When it comes to boiling points, the introduction of bromine atoms and fluorine atoms increases the intermolecular van der Waals force, causing the boiling point to rise. The specific value, determined by experiments, is about a specific range, but it is limited by experimental conditions, or there is a slight difference. The melting point of
also has its own characteristics due to its structure. Each atom in the molecule interacts with the group, affecting the lattice energy, so that the melting point is in a certain range. The value of its melting point is also the key to study the physical properties of the compound.
In terms of solubility, the molecule has both polar (bromine, fluorine atom) and non-polar (tert-butyl) parts, and it has good solubility in organic solvents. For example, in organic solvents such as ethanol and ether, it can be miscible according to the principle of similarity compatibility and by means of intermolecular forces. In water, due to the large difference in polarity, the solubility is poor.
The determination of density is also an important part of its physical properties. The density of the compound depends on the atomic species and molecular structure arrangement. The relative density can be determined by specific experimental methods, providing basic data for chemical production and scientific research.
The refractive index is also an important physical constant of the compound. Its refractive index reflects the characteristics of molecular light refraction and is closely related to the molecular structure, which is of great significance in the identification and analysis of the compound.
In summary, the physical properties of 1-bromo-3- (tert-butyl) -5-fluorobenzene, such as properties, boiling point, melting point, solubility, density, refractive index, etc., are determined by its unique molecular structure, and are of indispensable value in the fields of organic synthesis and materials science.
What is the chemical synthesis method of 1-Bromo-3- (Tert-Butyl) -5-Fluorobenzene?
The synthesis of 1-bromo-3- (tert-butyl) -5-fluorobenzene is by a numerical method. First, 3- (tert-butyl) -5-fluorobenzene is prepared by diazotization and Sandmeier reaction. First, 3- (tert-butyl) -5-fluoroaniline is formed into diazonium salt with sodium nitrite and hydrochloric acid at low temperature, and then co-heated with cuprous bromide. The diazo group is replaced by bromine to obtain the target 1-bromo-3- (tert-butyl) -5-fluorobenzene.
In addition, it can be started from 3- (tert-butyl) -5-fluorobenzoic acid. First, it is converted into the corresponding acyl chloride, reduced by Rosemond to obtain an aldehyde, and then brominated with a brominating agent such as N-bromosuccinimide (NBS) in the presence of light or an initiator. The aldehyde group is then reduced by a suitable reducing agent, and the target product can also be obtained.
In addition, 3- (tert-butyl) -5-fluorophenylboronic acid is synthesized with brominated reagents under transition metal catalysis, such as Suzuki-Miyaura reaction catalyzed by palladium. Suitable bases and ligands are needed to couple phenylboronic acid with bromine to obtain 1-bromo-3- (tert-butyl) -5-fluorobenzene. Each method has advantages and disadvantages, and the choice should be weighed according to the availability of raw materials, reaction conditions and yield.
What are the precautions for storing and transporting 1-Bromo-3- (Tert-Butyl) -5-Fluorobenzene?
1-Bromo-3- (tert-butyl) -5-fluorobenzene is an organic chemical. When storing and transporting, be sure to pay attention to the following things.
First, the importance of storage. This chemical needs to be stored in a cool, dry and well-ventilated place. Because the substance may be sensitive to heat, high temperature can easily cause it to deteriorate or even cause dangerous reactions. Therefore, the selected storage place should be kept at a suitable temperature, away from heat and fire sources. And the storage environment should be ensured to be dry, because if it encounters water vapor, or hydrolysis and other adverse reactions, it will affect the quality. Furthermore, it should be sealed for storage to prevent oxidation in contact with air, or to absorb impurities in the air.
Second, the rules of transportation. During transportation, the packaging must be tight and sturdy. Packaging materials that meet relevant standards should be selected to ensure that the packaging will not be damaged during transportation and prevent the leakage of the chemical. Transportation vehicles should also be kept clean and dry to avoid mixing with other chemicals to prevent mutual reaction. In addition, transportation personnel should be familiar with the characteristics of the chemical and emergency treatment methods, and in the event of an accident, they can respond properly in a timely manner.
Third, the importance of identification. Whether it is a storage container or a transportation package, its name, characteristics, hazard warnings and other information must be clearly marked. In this way, operators can quickly know its relevant information when they come into contact, and take protective measures to prevent accidents.
In conclusion, the storage and transportation of 1-bromo-3- (tert-butyl) -5-fluorobenzene requires careful treatment of the above items to ensure personnel safety and material quality.
What is the market price range for 1-Bromo-3- (Tert-Butyl) -5-Fluorobenzene?
The market price range of 1-bromo-3- (tert-butyl) -5-fluorobenzene is difficult to say exactly. The price fluctuation of this compound in the chemical raw material market is influenced by many factors.
First, the cost of raw materials has a great impact. If the acquisition cost of various starting materials required for the preparation of this compound changes, the price of 1-bromo-3- (tert-butyl) -5-fluorobenzene will fluctuate. For example, the supply of bromine, tert-butyl-related reagents and fluorinated raw materials is closely related to the price of the product.
Second, the complexity of the production process is also key. If the production process is cumbersome and requires multiple reactions, strict conditions control and complex purification steps, the cost will increase and the price will rise accordingly. On the contrary, if the process is advanced and efficient, the cost may be reduced, and the price will also have room to decline.
Third, the market supply and demand situation plays a significant role. If a certain period of time, many chemical companies have strong demand for 1-bromo-3- (tert-butyl) -5-fluorobenzene, but the supply is limited, its price will rise; conversely, if the supply exceeds the demand, the price will easily fall.
Fourth, the production scale also has an impact. In large-scale production, the unit cost may be reduced due to the scale effect, and the price may be more affordable; in small-scale production, the cost is higher and the price is relatively high.
According to past market transactions and the price reference of similar compounds, the price may range from a few yuan to a few tens of yuan per gram, but this is only a rough range. The real price may fluctuate greatly due to the above factors. To know the exact price, consult the relevant chemical product suppliers in detail, or refer to recent professional chemical market reports to obtain accurate figures.