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What is the chemical structure of 2- [[[3-methyl-4- (2,2,2-trifluoroethoxy) 2-pyridyl] -methyl] thio] -1H-benzimidazole?
This is the question of 2- [[3-methyl-4- (2,2,2-trifluoroethoxy) - 2-pyridyl] -methyl] thio] -1H-benzimidazole, to know its chemical structure. This compound is based on the core structure of benzimidazole, and there is a sulfur-containing substituent attached to the nitrogen atom of 1H-benzimidazole. This sulfur-containing substituent is connected by a sulfur atom with [[3-methyl-4- (2,2,2-trifluoroethoxy) - 2-pyridyl] -methyl]. The third position of the pyridine ring is methyl, and the fourth position is connected to 2,2,2-trifluoroethoxy. Overall, it is composed of benzimidazole and pyridine rings through a specific connection method. Sulfur atoms play a key role in connecting the two. Substituents on the pyridine ring give this compound unique physical and chemical properties.
What are the physical properties of 2- [[[3-methyl-4- (2,2,2-trifluoroethoxy) 2-pyridyl] -methyl] thio] -1H-benzimidazole?
2 - [[[3-methyl-4- (2,2,2-trifluoroethoxy) - 2-pyridyl] -methyl] thio] -1H-benzimidazole This substance has many physical properties. Its morphology is often white to off-white crystalline powder, with fine and uniform texture. Looking at its color, it is pure and white, with little variegation, due to the regular molecular structure and few impurities.
When it comes to melting point, it is between 138-142 ° C. The value of the melting point is determined by the intermolecular force. The intramolecular hydrogen bonds and van der Waals forces check and balance each other. When this specific temperature is reached, the lattice disintegrates and the substance melts.
In terms of solubility, it is slightly soluble in water. Although the molecule contains polar groups, it has strong overall hydrophobicity. However, in organic solvents such as dichloromethane and ethanol, it has certain solubility. In dichloromethane, because its non-polar solvent is in line with the partial structure of the substance, it can be well dispersed; in ethanol, because ethanol has both polar hydroxyl groups and non-polar hydrocarbon groups, it can form hydrogen bonds and other interactions with the substance, so it dissolves. < Br >
Its density is also an important physical property, about [X] g/cm ³. The density depends on the molecular mass and the way of molecular accumulation. The molecular arrangement of the substance is moderate, resulting in its density in this range.
In addition, the substance has good stability. Under normal temperature and pressure, it can be stored for a long time without significant chemical changes. This is because the benzimidazole ring and surrounding groups form a stable conjugate system to enhance molecular stability.
What is the main use of 2- [[[3-methyl-4- (2,2,2-trifluoroethoxy) 2-pyridyl] -methyl] thio] -1H-benzimidazole?
2-% 5B% 5B% 5B3-methyl-4- (2,2,2-trifluoroethoxy) -2-pyridyl% 5D-methyl% 5D-thio% 5D-1H-benzimidazole This substance is widely used in the field of medicine. Its main use is proton pump inhibitor, which is effective in the treatment of gastric acid-related diseases.
It is caused by excessive secretion of gastric acid, which often causes gastric ulcer, duodenal ulcer and reflux esophagitis. And this compound can specifically act on the proton pump of gastric parietal cells, effectively inhibiting gastric acid secretion, thereby relieving pain for patients.
In the treatment of gastric ulcers, it can create a suitable gastric environment and help the repair and healing of ulcer wounds; in patients with duodenal ulcers, it can reduce the erosion of gastric acid on the intestines, relieve pain and other uncomfortable symptoms. As for reflux esophagitis, by reducing gastric acid secretion, it can reduce the stimulation of gastric acid reflux on the esophagus, and improve the symptoms of dysphagia and heartburn in patients.
In addition to the field of medicine, in chemical synthesis, it may also be a key intermediate, used to derive other compounds with specific properties, which play an important role in the preparation of fine chemical products and help the development of related industries.
What are the synthesis methods of 2- [[[3-methyl-4- (2,2,2-trifluoroethoxy) 2-pyridyl] -methyl] thio] -1H-benzimidazole?
2 - [[3-methyl-4- (2,2,2-trifluoroethoxy) - 2-pyridyl] - methyl] thio] - 1H-benzimidazole The following methods are commonly used.
One is to use 2-mercaptobenzimidazole as the starting material. First make it with halogenated alkanes, such as halogenated compounds containing the desired pyridyl methyl structure, to undergo nucleophilic substitution in an alkaline environment. The alkali can be selected from potassium carbonate, etc., in a suitable organic solvent such as acetonitrile, heated and stirred to promote the substitution of the sulfhydryl group with the carbon-halogen bond of the halogen, thereby introducing the pyridyl methylthio group structure. This reaction condition is mild and the yield is considerable. However, attention should be paid to the selection and purity of the halogen to avoid side reactions.
Second, 3-methyl-4- (2,2,2-trifluoroethoxy) -2-pyridyl methanol can be used. Convert it into the corresponding halide, and then react with 2-mercaptobenzimidazole under basic conditions similar to the above. In this approach, the conversion of pyridyl methanol to halide requires attention to the control of reaction conditions, such as the amount of halogenated reagents, reaction temperature, etc., to ensure the formation of a single halogenated product and provide a good substrate for subsequent nucleophilic substitution.
In addition, o-phenylenediamine and corresponding carboxylic acids or their derivatives are used as starting materials to construct benzimidazole rings through cyclization, and pyridyl methylthio side chains are introduced. This method requires precise design of the reaction sequence and conditions to ensure the smooth progress of each step of the reaction, and requires high purity and reactivity of the raw materials. During the
synthesis process, the reaction conditions such as temperature, reaction time, and the proportion of reactants need to be finely regulated. After each step of the reaction, the products are often purified by means of column chromatography and recrystallization to achieve high purity and meet the needs of subsequent research or application.
2- [[[3-methyl-4- (2,2,2-trifluoroethoxy) 2-pyridyl] -methyl] thio] -1H-benzimidazole What are the precautions during use?
2-% 5B% 5B% 5B3 - methyl - 4 - (2,2,2 - trifluoroethoxy) 2 - pyridyl% 5D - methyl% 5D thio% 5D - 1H - benzimidazole, this is a special chemical. During use, many precautions must be paid attention to.
The first to bear the brunt is safety protection. This chemical may be toxic or irritating. When exposed, it must be fully armed and well protected. It is necessary to wear suitable protective clothing, the material should be able to effectively resist the erosion of the substance; wear protective gloves to ensure that the skin of the hands is not damaged; the eyes should not be ignored, and protective glasses or masks are essential to block substances that may splash. The operating environment is also crucial. It is necessary to ensure good ventilation. If conditions permit, it is best to operate in the fume hood, so that harmful gases can be dispersed in time and the harm to the human body can be reduced.
Furthermore, when taking this chemical, accurate measurement is extremely critical. Due to its special chemical properties, a slight deviation in the dosage may have a significant impact on the experimental results or the reaction process. Be sure to use accurate measuring instruments, such as balances, pipettes, etc., and operate strictly in accordance with the operating procedures to ensure that the dosage is accurate.
Storage is also important. It should be stored in a suitable environment according to its chemical properties. Generally speaking, it should be placed in a dry and cool place, away from fire and oxidants. Because it may be sensitive to light, it is also necessary to store it away from light. Proper storage can ensure the stability and quality of the substance and extend its shelf life.
In addition, waste disposal after use should not be underestimated. It must not be discarded at will, and it must be properly disposed of in accordance with relevant environmental regulations. In some cases, special treatment may be required to avoid pollution to the environment.
In conclusion, when using 2-% 5B% 5B% 5B3 - methyl - 4 - (2,2,2 - trifluoroethoxy) 2 - pyridyl% 5D - methyl% 5D thio% 5D - 1H - benzimidazole, safety protection, accurate measurement, reasonable storage and proper waste disposal should be treated with caution, and no sloppiness should be allowed to ensure the safety and smooth use of the process.
