Chemical Formula | C7H6N2S |
Molar Mass | 150.206 g/mol |
Appearance | white to light yellow solid |
Odor | odorless |
Melting Point | 290 - 295 °C |
Solubility In Water | insoluble |
Solubility In Organic Solvents | soluble in hot ethanol, DMSO, etc. |
Pka Value | about 7.1 (in water) |
Stability | stable under normal conditions |
Hazard Class | irritant (may cause skin, eye, and respiratory irritation) |
What are the main uses of Benzimidazole-2-thiol?
Benzimidazole-2-mercaptan has a wide range of uses. In the field of medicine, it is a key raw material for the creation of insect repellents and antibacterial agents. In terms of insect repellents, it can precisely act on specific targets of the insect body, interfering with its normal physiological metabolism, making it difficult for the insect body to exist in the host body and achieve the effect of repellent; in terms of antibacterial agents, it can destroy the cell wall of bacteria or inhibit the activity of key enzymes of bacteria, in order to prevent their reproduction and protect human health.
In the field of materials science, benzimidazole-2-mercaptan is also useful. It can be an additive for metal anti-corrosion. When a specific medium is added, a dense protective film can be built on the metal surface to isolate external corrosive substances, slow down the metal corrosion rate, and extend its service life. In the field of optical materials, appropriate modification may endow the material with unique optical properties, such as fluorescence properties, expanding its application in optical display, sensing, etc.
In the field of organic synthetic chemistry, benzimidazole-2-thiol is often used as a key intermediate. Due to its structure containing active groups, it can participate in a variety of chemical reactions, such as nucleophilic substitution, cyclization, etc. After ingeniously designing the reaction path, it can synthesize organic compounds with complex structures and specific functions, opening up a wide field for organic synthetic chemistry.
What are the physical properties of Benzimidazole-2-thiol?
Benzimidazole-2-thiol, Chinese name benzimidazole-2-thiol, is an organic compound with special physical properties and is very important in many fields of chemistry.
Its properties are off-white to light yellow crystalline powder, which is easy to identify. The melting point is between 290-295 ° C, and the melting point characteristic helps to determine its purity and stability. It is slightly soluble in water, but soluble in common organic solvents such as ethanol and acetone. This solubility is of great significance for selecting a suitable reaction solvent in organic synthesis. It can be separated or mixed with other substances according to its solubility characteristics.
In addition, benzimidazole-2-mercaptan has a certain odor. Although it is not strong and pungent, it is also necessary to pay attention to the ventilation environment during operation. Because of its low volatility, it is relatively stable under conventional conditions. It can be exposed to high temperatures, open flames or strong oxidants, or dangerous reactions.
Because its structure contains nitrogen and sulfur heteroatoms, it has unique chemical activity and can participate in many organic reactions, such as nucleophilic substitution, cyclization reactions, etc. It is widely used in pharmaceutical chemistry and materials science. It can be used as a pharmaceutical intermediate for the synthesis of specific biologically active drugs, and can also be used as a functional monomer in material synthesis to construct materials with special properties.
Benzimidazole-2-thiol chemical synthesis methods
Fubenzimidazole-2-mercaptan is also an organic compound. Its synthesis method has been studied by many chemists in the past. Here are the common methods as follows:
First, the method of using o-phenylenediamine and carbon disulfide as raw materials. The o-phenylenediamine and carbon disulfide are placed in a suitable reactor with a base as the catalyst, usually such as sodium hydroxide. The temperature is controlled within an appropriate range, and usually under the condition of heating and reflux, the two react. The sulfur atom of carbon disulfide interacts with the amino group of o-phenylenediamine to give benzimidazole-2-mercaptan through cyclization. In this process, the reaction temperature, the ratio of raw materials and the reaction time are all key factors. If the temperature is too low, the reaction rate is slow and the yield is not high; if the temperature is too high, there may be side reactions. The ratio of raw materials also needs to be accurate. The improper ratio of o-phenylenediamine to carbon disulfide also affects the purity and yield of the product.
Second, the method of using o-nitroaniline as the starting material. First, the o-nitroaniline is converted into o-phenylenediamine by reduction reaction. In this reduction step, a reduction system such as iron powder and hydrochloric acid can be used. After obtaining o-phenylenediamine, it is reacted with carbon disulfide as described above to obtain the target product through cyclization. Although there is one more step reduction reaction in this path, the raw material of o-nitroaniline is easy to obtain, and benzimidazole-2-mercaptan with high yield and purity can be obtained by reasonably controlling the reaction conditions of each step.
Third, the method of using phthalic anhydride as the starting material. Phthalic anhydride first reacts with urea to obtain phthalic urea, which is then converted into benzimidazolone through dehydration, cyclization and other steps. Finally, through the vulcanization reaction, the carbonyl group is converted into thiol group with phosphorus pentasulfide and other vulcanizing agents, thereby obtaining benzimidazole-2-mercaptan. This process is a little complicated, but each step has mature reaction conditions to follow. As long as the fine operation, it is also an effective way to synthesize benzimidazole-2-thiol.
Benzimidazole-2-thiol in what areas?
Benzimidazole-2-mercaptan, this substance has a wide range of uses and has extraordinary applications in the fields of medicine, agriculture and materials.
In the field of medicine, it is an important organic synthesis intermediate and often appears in the drug R & D process. Due to its unique chemical structure and biological activity, it can be used to create insecticides. Such drugs can efficiently kill parasites that parasitize in the intestines of animals or humans, making great contributions to the protection of human and animal health. In addition, it has also made a name for itself in the development of antibacterial drugs. After rational chemical modification, it is expected to generate new antibacterial drugs with strong inhibition or killing ability against specific bacteria.
In the agricultural field, benzimidazole-2-mercaptan is also indispensable. It can be used as a fungicide raw material and processed into fungicide products to effectively resist many agricultural diseases. These diseases often seriously threaten crop growth and yield. The use of fungicides containing this ingredient can greatly reduce the incidence of diseases and help agricultural harvests.
The same can be seen in the field of materials. With its own characteristics, it can participate in the synthesis of functional materials. For example, in the preparation of some polymer materials, the addition of benzimidazole-2-mercaptan can improve material properties, such as enhancing material stability and enhancing its chemical resistance, so that the material can maintain good performance in different environments and broaden the application range of materials.
In summary, benzimidazole-2-thiol plays a key role in the fields of medicine, agriculture, and materials, and has made significant contributions to the development of various fields.
What is the market outlook for Benzimidazole-2-thiol?
Benzimidazole-2-thiol, a chemical substance, is often based on benzimidazole and is connected to a thiol group at the binary position. Its market prospect is quite promising.
From the perspective of industrial use, in the rubber industry, this is an excellent vulcanization accelerator. It can significantly improve the rate and efficiency of rubber vulcanization, and improve the physical and mechanical properties of rubber products, such as tensile strength and wear resistance. Today, the rubber industry is booming, and the demand for automotive tires, rubber seals and other products is increasing.
In the field of medicine, this product has great potential. Its unique structure can be chemically modified to obtain derivatives with specific pharmacological activities. Studies have shown that some derivatives have antibacterial, antiviral, anti-tumor and other effects. With the advancement of medical research, the demand for novel structures and highly active drugs is becoming increasingly urgent. Benzimidazole-2-thiol may become an important starting material for the development of new drugs, and its market is expected to expand.
Furthermore, in agriculture, it may also emerge. It can be developed as a new type of pesticide for the control of pests and diseases. Its unique chemical properties may have high inhibition or killing effects on specific pests and bacteria, and compared with traditional pesticides, it may have advantages such as low toxicity and environmental protection. With the advocacy of green agriculture, the demand for such new pesticides is increasing, and Benzimidazole-2-thiol may have a place in the agricultural market.
However, there are also challenges in its market development. The optimization of synthetic processes needs to be continuously refined to reduce costs, increase yield, and enhance market competitiveness. And environmental regulations are becoming stricter, and the production process must comply with relevant standards, which is also an issue that manufacturers need to face. Despite the challenges, in view of its wide application prospects, the future market of Benzimidazole-2-thiol is still full of opportunities and broad development space.