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What is the chemical structure of 7-methylbenzo [b] naphtho [2,3-d] thiophene?
7 - methylbenzo [b] naphtho [2,3 - d] thiophene is an organic compound. Its chemical structure is quite complex and consists of a polycyclic system.
The basic structure of this compound includes benzo ring (benzo -), naphtho ring (naphtho -) and thiophene ring (-thiophene). The "7 - methyl" table is at a specific position, that is, numbered 7, and is connected with a methyl group (-CH 🥰).
The benzene ring is a six-membered carbon ring, which has unique aromatic properties and is known for its stable conjugate structure. The naphthalene ring is composed of two fused benzene rings, which also have aromatic properties. The thiophene ring is a sulfur-containing five-membered heterocyclic ring, which is similar to the benzene ring and also has aromatic properties.
In this compound, the benzene ring is fused with the naphthalene ring, and the naphthalene ring is fused with the thiophene ring. The numbering system follows a specific rule to determine the position of each atom. The "7" position is determined according to the numbering rule, and the methyl group is connected here. This structure endows the compound with unique physical and chemical properties, and may have important uses in organic synthesis, materials science and other fields. Due to its polycyclic aromatic structure, it may have certain electronic delocalization, which affects its optical, electrical and reactive properties.
What are the physical properties of 7-methylbenzo [b] naphtho [2,3-d] thiophene?
7 - methylbenzo [b] naphtho [2,3 - d] thiophene is an organic compound, and its physical properties are as follows:
From the perspective of
, this compound is mostly a crystalline solid under normal conditions. Due to the many conjugated systems in the molecule, it has a stable structure and unique physical properties.
As for the melting point, it has been experimentally determined that the substance has a specific melting point value. The level of this melting point is closely related to the intermolecular force and crystal structure. The intermolecular force is mainly van der Waals force, and the π-π accumulation between aromatic rings also affects the melting point. The molecules are arranged tightly and regularly, resulting in a relatively high melting point.
In terms of solubility, 7-methylbenzo [b] naphtho [2,3-d] thiophene is insoluble in water. Due to its non-polar structure, it cannot form an effective interaction with water molecules. However, in organic solvents, such as common benzene, toluene, chloroform, etc., because of their similar molecular structure and polarity to organic solvents, they follow the principle of "similar miscibility" and exhibit good solubility.
The dispersion force of this compound is enhanced by the presence of the conjugate system, resulting in increased intermolecular interactions. Its density is also related to the molecular structure and molecular weight, and the relative density is within a certain range. In addition, due to the characteristics of light absorption by the conjugated system, under specific wavelengths of light, there will be corresponding absorption spectra, which can be used for qualitative and quantitative analysis. The vapor pressure of this substance is low, and it is difficult for molecules to escape from the liquid surface to form steam due to the large intermolecular force. Under normal temperature and pressure, the volatility is weak.
What are the common uses of 7-methylbenzo [b] naphtho [2,3-d] thiophene?
7 - methylbenzo [b] naphtho [2,3 - d] thiophene is an organic compound, and its common uses are quite exquisite. In the field of organic synthesis, it is often used as a key intermediate. Due to its unique molecular structure, it can be derived from many organic compounds with special properties and uses through various chemical reactions.
From the perspective of material science, this compound can be used to prepare high-performance optoelectronic materials. Due to its unique optical and electrical properties, it can be used in organic Light Emitting Diodes (OLEDs), organic solar cells and other devices to improve the performance of devices, such as enhancing luminous efficiency and improving photoelectric conversion efficiency.
Furthermore, it also has potential application value in the field of medicinal chemistry. Due to the similarity between its structure and some biologically active molecules, it can be used as a lead compound to develop new drugs through structural modification and optimization, opening up new avenues for pharmaceutical research and development.
And because of its specific chemical stability and reactivity, it is also an important starting material or reaction reagent in the synthesis of some fine chemicals, helping to synthesize fine chemicals with specific functions and structures to meet the needs of different industries and scientific research.
What are the synthesis methods of 7-methylbenzo [b] naphtho [2,3-d] thiophene?
The synthesis method of 7-methylbenzo [b] naphthaleno [2,3-d] thiophene, although the ancient book "Tiangong Kaiwu" does not contain this specific thing, the chemical ingenuity it contains can be used as a reference for synthesis ideas.
First, analogous to the method of conversion of many raw materials in "Tiangong Kaiwu", suitable starting materials can be found first. For example, compounds containing benzene rings, naphthalene rings and sulfur atoms are used as bases, or benzonaphthalenes and sulfur-containing reagents are selected. According to the method of material selection in "Tiangong Kaiwu", the availability, purity and reactivity of raw materials need to be considered.
Second, learn from "Tiangong Kaiwu" to control the reaction conditions. The temperature and time are precisely controlled in the book, and the synthesis of this compound also requires fine control of the reaction temperature and time. Temperatures are different at different stages, such as initial heating to activate the raw material, intermediate temperature control to promote the orientation of the reaction, and later cooling to prevent side reactions. Time control is related to the purity and yield of the product. If it is too long, it may cause the product to decompose, and if it is too short, the reaction will not be completed.
Third, refer to the separation and purification techniques in "Tiangong Kaiwu". After the product is formed, it is mixed with impurities, which can be purified by distillation and crystallization in the book. Distillation separates according to the difference in boiling point of each component, and crystallization precipitates the product according to the different solubility.
Fourth, the reaction process may require a catalyst. Although Tiangong Kaifu does not mention modern catalysts, its method for promoting the reaction rate may inspire the search for a suitable catalytic system to reduce the activation energy of the reaction, accelerate the reaction process, and improve the product generation efficiency.
Synthesis of 7-methylbenzo [b] naphthalene [2,3-d] thiophene can be inspired by the chemical concept of Tiangong Kaifu, and an effective synthesis path can be explored through the steps of raw material screening, condition control, separation and purification, and catalytic consideration.
In what fields is 7-methylbenzo [b] naphtho [2,3-d] thiophene used?
7 - methylbenzo [b] naphtho [2,3 - d] thiophene is an organic compound with a unique chemical structure that can be used in many fields.
In the field of materials science, it has important applications. Due to its special electronic structure and optical properties, it can be used as an organic optoelectronic material. For example, in the manufacture of organic Light Emitting Diode (OLED), it may become a light-emitting layer material. Because it can effectively emit light under the action of an electric field, it helps to improve the luminous efficiency and color purity of OLED, making the display device clearer and more colorful. In the field of organic solar cells, it may be used as an active layer material to absorb light energy with its own structure, generate electron-hole pairs, promote charge transport and separation, improve the photoelectric conversion efficiency of solar cells, and contribute to the development of renewable energy.
In the field of pharmaceutical chemistry, 7-methylbenzo [b] naphtho [2,3-d] thiophene also has potential value. Its complex chemical structure offers diverse possibilities for drug design. Researchers can modify the structure of this compound to explore its biological activity. Or they can introduce different functional groups through chemical synthesis to change the way it interacts with biological targets. After research, it has been found that it may have affinity for specific disease-related targets, such as some cancer cell surface receptors. In this way, with it as the lead compound, it is expected to develop new anti-cancer drugs, which will contribute to the solution of cancer problems.
In the field of organic synthetic chemistry, it is an important synthetic intermediate. Because its structure contains multiple reaction check points, chemists can build more complex organic molecular structures through various organic reactions, such as nucleophilic substitution, electrophilic substitution, cyclization reaction, etc. This facilitates the synthesis of organic compounds with specific functions, promotes the continuous progress of organic synthetic chemistry, and helps to create new compounds and study their properties.
