What is the chemical structure of 4,6 - dimethyldibenzo [b, d] thiophene?

The chemical structure of 4,6-dimethyldibenzo [b, d] thiophene is particularly important. The structure of this compound is derived from the parent body of dibenzothiophene. Dibenzothiophene is formed by fusing two benzene rings with one thiophene ring. The so-called fused, that is, the ring and ring share adjacent carbon atoms.

On this basis, methyl groups are introduced at the 4th and 6th positions. The methyl group is a group formed by one carbon and three hydrogens. The positioning of the 4th and 6th positions is based on the nomenclature established by the International Union of Pure and Applied Chemistry (IUPAC). According to this rule, the atoms on the ring of dibenzothiophene are numbered, and then the position of the substituent is determined.

The overall structure of 4,6-dimethyldibenzo [b, d] thiophene presents a rigid planar configuration. This is because the fused ring system restricts the rotation within the molecule. And because its structure contains sulfur atoms, it endows this compound with unique electronic properties and chemical activity. Its structural properties have important applications and research value in many fields such as materials science and organic synthetic chemistry.

What are the physical properties of 4,6 - dimethyldibenzo [b, d] thiophene?

4,6-Dimethyldibenzo [b, d] thiophene is an organic compound with specific physical properties. It is mostly solid at room temperature and pressure, and its appearance is white to light yellow crystalline powder with a certain melting point and boiling point. The melting point is about 87-91 ° C and the boiling point is about 401.9 ° C. The substance is insoluble in water, because its molecular structure contains a large number of hydrophobic aromatic rings and thiophene rings, and the force between it and water molecules is weak, but it is easily soluble in common organic solvents, such as chloroform, dichloromethane, toluene, etc. The organic solvent molecules and 4,6-dimethyl dibenzo [b, d] thiophene molecules can be mutually soluble by Van der Waals force or π-π stacking. In addition, 4,6-dimethyldibenzo [b, d] thiophene has certain stability, and the aromatic ring conjugated system makes its chemical properties relatively stable. It is not easy to react with common reagents at room temperature and pressure, but under specific conditions, such as high temperature, strong oxidants or strong acids, substitution, oxidation and other reactions can occur. Due to its sulfur-containing heterocyclic and aromatic ring structure, the molecule has certain rigidity and planarity, which also affects its physical and chemical properties, such as affecting the accumulation mode and interaction between molecules, which in turn affects the physical properties such as melting point and solubility. The planar structure makes the distribution of π electron clouds uniform, enhances the conjugation effect, and improves stability.

What are the common uses of 4,6 - dimethyldibenzo [b, d] thiophene?

4,6-Dimethyldibenzo [b, d] thiophene is a very important substance in the field of organic compounds. It is commonly used in many chemical industry processes and scientific research scenarios.

First, this compound is widely used in the field of materials science. Due to its unique molecular structure, it can endow materials with special electrical and optical properties. In the preparation of organic semiconductor materials, 4,6-dimethyldibenzo [b, d] thiophene is often introduced as a key structural unit. Because it can effectively adjust the molecular orbital energy level of materials, it can significantly improve the carrier mobility of materials. The organic field effect transistor prepared from this material has excellent performance and has great application potential in the field of flexible electronic devices, such as flexible display screens, wearable electronic devices, etc., all rely on the strength of this compound to optimize performance.

Second, in the field of organic synthetic chemistry, 4,6-dimethyl dibenzo [b, d] thiophene acts as an important synthetic intermediate. Chemists can use various chemical modification reactions on it, such as halogenation, alkylation, acylation, etc., to construct organic compounds with more complex structures and more diverse functions. This provides a rich structural basis for the creation of new drugs, functional dyes and high-performance polymers.

Furthermore, in the field of optoelectronics, 4,6-dimethyldibenzo [b, d] thiophene also plays a key role. It can be used as a sensitizer in dye-sensitized solar cells. The compound can efficiently absorb light energy and quickly transfer the absorbed energy to the semiconductor material, thereby greatly improving the photoelectric conversion efficiency of the battery. At the same time, due to its good thermal and chemical stability, it is also often used to improve the luminous efficiency and stability of the device in the organic Light Emitting Diode (OLED) material system, so that the OLED display shows more vivid colors and higher contrast. 4,6-Dimethyldibenzo [b, d] thiophene has played an indispensable role in the fields of materials science, organic synthetic chemistry, and optoelectronics, and has made significant contributions to promoting technological progress and innovation in related fields.

What are the synthesis methods of 4,6 - dimethyldibenzo [b, d] thiophene?

The method of synthesizing 4,6-dimethyldibenzo [b, d] thiophene has been known for a long time. The method of synthesizing this compound often follows a number of paths.

First, starting with benzothiophene derivatives, this goal can be achieved by alkylation. The method of alkylation requires suitable reagents and conditions. If halogenated alkanes are used as alkylating agents, strong bases are used as catalysts, and the alkyl groups of halogenated alkanes are reacted in suitable temperatures and solvents, the alkyl groups of halogenated alkanes can be connected to specific positions of benzothiophene. After optimization steps, 4,6-dimethyldibenzo [b, d] thiophene is expected to be obtained. < Br >
Second, it is prepared by the condensation reaction between sulfur-containing aromatic compounds and halogenated aromatic hydrocarbons. This condensation reaction requires the help of catalysts, such as metal catalysts. Metal catalysts can activate the reactants and make the two bond. For example, palladium catalysts are used. In a specific reaction system, sulfur-containing aromatic compounds and halogenated aromatic hydrocarbons undergo a series of radical reactions to construct the skeleton of dibenzo [b, d] thiophene, which can be modified and added with methyl to obtain the target.

Third, take the cyclization reaction as the diameter. Select the appropriate precursor and cyclize it within the molecule to form the structure of dibenzo [b, d] thiophene. The design of the precursor is crucial, and its structure needs to have a reactive activity check point, and the steric resistance is suitable for electronic effects. After cyclization, the introduction of methyl groups, or the pre-modification of the precursor before cyclization, can lead to the synthesis of 4,6-dimethyl dibenzo [b, d] thiophene.

All synthesis methods have advantages and disadvantages, and the purpose of efficient synthesis can be achieved according to actual needs, such as raw material availability, cost, yield and purity.

What is the price range for 4,6 - dimethyldibenzo [b, d] thiophene in the market?

I look at what you are asking, but I am inquiring about the price range of 4,6-dimethyldibenzo [b, d] thiophene in the market. Sadly, I have not obtained the exact price. The price of this compound on the market often varies due to multiple factors.

First, it is about purity. If the purity is extremely high and almost flawless, its price will be high; if it is slightly inferior and contains some impurities, the price will be slightly reduced. Second, it depends on supply and demand. If there are many people in the world, but there are few suppliers, such as rare treasures, the price will jump; if the supply exceeds the demand and floods like river water, the price will drop. Third, the difficulty of production also has an impact. If the preparation requires a complicated method and consumes a lot of resources, the price will be high; if the production method is simple and low cost, the price can be close to the people.

Although it is difficult to give you an accurate price range, you can go to the chemical product trading platform and reagent supplier for details. Or communicate with industry experts, they often know the approximate price. Or refer to past transaction records to deduce the current price. So many parties explore, or you can get the price range you are looking for.