4,6-dibromodibenzo[b,d]thiophene

The chemical structure of 4,6-diethoxy-dibenzo [b, d] furan is derived from the parent nucleus of dibenzofuran. Dibenzofuran has a unique fused-ring aromatic structure, which is composed of two benzene rings and one furan ring in a specific way. On this basis, the ethoxy group is introduced at the 4 and 6 positions to form the structure of 4,6-diethoxy-dibenzo [b, d] furan.
Ethoxy, -OCH -2 CH <. It is also substituted at a specific position of dibenzofuran, which has a significant impact on the physical and chemical properties of the compound. From the perspective of spatial structure, the introduction of ethoxy groups changes the spatial distribution of molecules and affects the interaction between molecules. From the perspective of electronic effects, ethoxy groups have the property of electrons, which can change the electron cloud density distribution of benzene and furan rings, and then affect the reactivity and spectral properties of compounds.
This structure is of great significance in organic synthesis, materials science and other fields. Its special electronic structure and spatial configuration may give it unique optoelectronic properties, providing new opportunities for the research and development of organic optoelectronic materials.

4,6-Diethylenediamine [b, d] quinoxaline has a wide range of main uses. In the field of medicine, it can act as a key intermediate. Because of its specific chemical structure and activity, it can participate in many drug synthesis reactions, helping to develop antibacterial, anti-tumor and other drugs. For example, by modifying its structure and derivatization, it may be possible to obtain compounds with unique pharmacological activities, providing a new path for the development of drugs to overcome difficult diseases.
In the field of materials science, it can be used to prepare high-performance polymer materials. Introducing it into the main chain or side chain of polymers can improve the mechanical properties, thermal stability and optical properties of polymers. For example, the preparation of luminescent materials with high fluorescence efficiency can be used in optoelectronic devices such as organic Light Emitting Diodes (OLEDs) to improve the luminescence performance and stability of the devices.
In the field of dyes, 4,6-diethylenediamine [b, d] quinoxaline can be used as a dye intermediate due to its own structure that can absorb and emit specific wavelengths of light. Through chemical modification, its color and dyeing properties can be adjusted, and high-quality dyes for textile, printing and dyeing industries can be prepared, giving fabrics brilliant color and good dyeing fastness.
Furthermore, in analytical chemistry, it may serve as an analytical reagent. By means of selective reactions with specific substances, the qualitative and quantitative detection of certain ions and molecules can be achieved, providing an effective tool for analysis and detection.

4,6-Dihydroxydibenzo [b, d] furan is an organic compound with unique physical properties. It is a white to light yellow crystalline powder and is stable at room temperature and pressure.
Looking at its melting point, it is about 168-172 ° C. The important melting point lies in the determination of the purity of the material and the prediction of the state change under specific conditions. This melting point range shows that 4,6-dihydroxydibenzo [b, d] furan has a certain thermal stability and maintains a solid state at a specific temperature.
It is soluble in water, but soluble in organic solvents such as ethanol, acetone, and dichloromethane. Slightly soluble in water, due to the fact that the molecular structure contains hydroxyl groups that can form hydrogen bonds with water, the overall structure of benzene ring and furan ring has a large proportion, which has strong hydrophobicity and poor water solubility. Soluble in organic solvents, due to the principle of similar phase dissolution, its molecular structure is adapted to the intermolecular forces of organic solvents, and it can be well miscible. This solubility characteristic has a significant impact in the chemical and pharmaceutical fields. For example, when separating, purifying and using as reaction raw materials or intermediates, the solvent selection depends on its solubility.
4,6-dihydroxydibenzo [b, d] furan has a density of about 1.39 g/cm ³. Density, as the basic physical properties of substances, is helpful to understand its behavior when mixed with other substances. Under specific conditions, its distribution and stratification in the mixed system can be predicted based on the density.
Its low vapor pressure indicates low volatility at room temperature. This property is extremely critical during storage and use. Low volatility reduces the risk of material diffusion loss in the air, and also reduces potential hazards to the environment and human health.

There are many synthetic methods of 4,6-dibromo-dibenzo [b, d] furan, which are briefly described.
One is nucleophilic substitution. Using aromatic compounds containing phenolic hydroxyl groups or halogen atoms as starting materials, in a suitable base and solvent environment, through nucleophilic substitution reaction, the oxygen atoms or halogen atoms of phenolic hydroxyl groups are replaced by other nucleophilic reagents, and the target molecular structure is gradually constructed. This process requires precise control of reaction conditions, such as temperature, base strength and dosage, to improve the reaction yield and selectivity.
The second is metal catalytic coupling method. With the help of transition metal catalysts, such as palladium, nickel, etc., aromatic compounds containing halogen atoms are coupled to organometallic reagents. This method has the advantages of high efficiency and good selectivity, but the cost of metal catalysts is high, and post-treatment needs to be careful to avoid the problem of metal residues.
The third is oxidative cyclization. Select aromatic compounds with specific structures, under the action of oxidants, through oxidative cyclization steps, to achieve intramolecular cyclization, and then generate 4,6-dibromodibenzo [b, d] furan. The key to this method is the selection of oxidants and the optimization of reaction conditions to ensure that the oxidation process is controllable and avoid side reactions such as excessive oxidation.
The fourth is photocatalytic synthesis. Using photocatalysts to absorb light energy to generate highly active free radicals or excited state species, initiate related reactions and promote the formation of target products. The photocatalytic synthesis has the characteristics of mild reaction conditions and environmental friendliness, but the performance of the photocatalyst and the photoreaction device have a great influence on the reaction effect, so it needs to be studied and optimized in depth.
The above synthesis methods have their own advantages and disadvantages. In practical application, the appropriate synthesis path should be carefully selected according to factors such as raw material availability, cost considerations, target product purity and yield requirements.

It is difficult to determine the price range of 4,6-dihydroxydibenzo [b, d] furan in the market. The price of 4,6-dihydroxydibenzo [b, d] furan often changes for a variety of reasons, such as the quality, the situation of supply and demand, the difficulty of production, and changes in market conditions. Factors will have a significant impact on its price.
If the quality is high, and the market demand exceeds the supply, the production is quite difficult, and the price may remain high; on the contrary, if the quality is normal, the supply is abundant, the production is relatively simple, and the price may tend to be easy.
The market conditions are changing rapidly, and the prices will vary in different seasons and regions. Or at some time and place, due to special needs or emergencies, the supply and demand change suddenly, and the price fluctuates sharply. Therefore, to determine the exact price range, it is necessary to carefully review current market information, such as chemical product trading platforms, industry reports, and relevant merchant quotations, in order to obtain a more accurate price range.