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2-Aminobenzenesulfonic chemical structure of Acid Phenyl Ester
2-Aminobenzenesulfonate phenyl ester, its chemical structure can be regarded as formed by the esterification reaction of benzenesulfonic acid and phenol, and the amino group of benzenesulfonic acid is retained. In this compound, the benzenesulfonic acid part contains benzene ring and sulfonic acid group (\ (- SO_ {3} H\)). The sulfur atom in the sulfonic acid group is connected to two oxygen atoms by double bond, and is connected to another oxygen atom and benzene ring by single bond, showing a specific electron distribution and spatial configuration. The amino group (\ (- NH_ {2}\)) is connected to the benzene ring, giving the molecule certain alkalinity and nucleophilicity.
And the phenyl ester part, the hydroxyl group of phenol (\ (-OH\)) dehydrates and condenses with the carboxyl group of benzenesulfonic acid (where the sulfonic acid group acts like a carboxyl group) to form an ester bond (\ (-COO-\), where it is\ (- SO_ {2} O-\) similar structure), connecting two benzene rings. The existence of this ester bond affects molecular stability and reactivity. The two benzene rings are conjugated to each other, expanding the range of electron delocalization, affecting the spectral properties and chemical behavior of compounds. Such a structure makes 2-aminobenzenesulfonic acid benzene ester show unique properties and application potential in organic synthesis, medicinal chemistry and other fields.
2-Aminobenzenesulfonic the physical properties of Acid Phenyl Ester
2-Aminobenzenesulfonate phenyl ester, this is an organic compound. Its physical properties are quite important and are related to many practical applications.
First of all, under room temperature and pressure, it is often white to light yellow crystalline powder with fine texture. Looking at its color, the appearance of this color is determined by the electronic transition characteristics within its molecular structure. The crystalline morphology of this compound is regular, reflecting the orderly arrangement of intermolecular forces.
The melting point is between 140 and 145 ° C. The reason why the melting point is in this range is due to the interaction of specific strengths between molecules, such as hydrogen bonds, van der Waals forces, etc. When the temperature rises to the melting point, these forces are weakened, and the molecules break free from the lattice and turn from solid to liquid.
Solubility is also a key physical property. In water, its solubility is poor and only slightly soluble. This is because the molecular polarity of the compound is relatively weak, and water is a strong polar solvent. According to the principle of similarity compatibility, the polarity difference between the two is large, so it is difficult to dissolve. However, in some organic solvents, such as ethanol and acetone, its solubility is relatively good. The polarity of ethanol and acetone is moderate, and the interaction with 2-aminobenzenesulfonate phenyl ester molecule is suitable, which can promote its dissolution.
In addition, the density of the compound is about 1.3 - 1.4 g/cm ³. The density reflects the mass of the substance per unit volume, and this value indicates that it is relatively tightly packed in the solid state.
Its odor is weak, and under normal conditions, there is no strong pungent or special odor. This characteristic makes it less affected by environmental odor during use, and is advantageous in many odor-sensitive application scenarios.
2-Aminobenzenesulfonic common uses of Acid Phenyl Ester
2-Aminobenzenesulfonate phenyl ester, which is a very important one in the field of organic compounds. It has many common uses and is often used as a key intermediate in the dye industry. Due to its structural characteristics, it can participate in a series of complex chemical reactions. Through carefully designed synthesis paths, various dyes with colorful and excellent properties can be prepared, providing rich and stable color choices for the dyeing process of fabrics, leather and many other materials.
In the field of medicine, it also has extraordinary performance. With its unique chemical activity, it can be used as a starting material or key structural fragment for the synthesis of some special drugs. Medical researchers have used ingenious modifications and modifications of its chemical structure to explore and develop therapeutic drugs for specific diseases, contributing to human health and well-being.
In the field of materials science, phenyl 2-aminobenzenesulfonate has also emerged. Because of its certain functionality, it can be used to prepare polymer materials with special properties. For example, its introduction into polymer systems can effectively improve the physical and chemical properties of materials, such as enhancing the stability of materials and improving their mechanical properties, thereby meeting the stringent needs of high-performance materials in different fields.
To sum up, phenyl 2-aminobenzenesulfonate plays an indispensable role in many important fields such as dyes, medicine and materials science, and its potential in industrial production and scientific research cannot be underestimated.
2-Aminobenzenesulfonic of Acid Phenyl Ester
The method of preparing 2-aminobenzenesulfonate phenyl ester has been used in various ways throughout the ages. First, it can be formed by esterification of 2-aminobenzenesulfonate and phenol under the action of a suitable catalyst. In this process, choosing the right catalyst is the key. Common catalysts, such as sulfuric acid and p-toluenesulfonic acid, can effectively promote the reaction and improve the yield. During the reaction, precise temperature control is required. Generally speaking, the temperature should be maintained at a certain range. If it is too low, the reaction rate will be slow, and if it is too high, it may cause side reactions to breed and damage the purity of the product.
Furthermore, 2-aminobenzenesulfonyl chloride and phenol can also be used as raw materials. First, 2-aminobenzenesulfonyl chloride is prepared from 2-aminobenzenesulfonic acid, and this step is often achieved by chlorination reagents such as thionyl chloride. Then, 2-aminobenzenesulfonyl chloride reacts with phenol in an alkaline environment. The alkaline conditions are mostly created by alkaline substances such as sodium hydroxide and sodium carbonate. Moderate alkalinity can ensure the smooth progress of the reaction, which not only avoids the hydrolysis of benzenesulfonyl chloride, but also promotes its efficient reaction with phenol. After the reaction is completed, pure 2-aminobenzenesulfonic acid phenyl ester can be obtained through separation and purification. Separation or extraction is used to extract the product from the reaction system with a suitable organic solvent; when purifying, recrystallization is a good strategy. After several recrystallization, the purity of the product can be greatly improved.
In addition, there are methods for the preparation of other derivatives through multi-step reactions. However, such methods are often complicated and costly, and are rarely used in actual preparation unless there are special requirements for the product. In short, the preparation of 2-aminobenzenesulfonate phenyl ester needs to be based on actual needs, the advantages and disadvantages of each method should be weighed, and the appropriate route should be carefully selected.
2-Aminobenzenesulfonic Acid Phenyl Ester during storage and transportation
2-Aminobenzenesulfonate is an organic compound. During storage and transportation, many key matters must be paid attention to.
First, the storage environment should be dry and cool. If this compound encounters moisture, it is easy to cause chemical reactions such as hydrolysis, which will damage its quality. Therefore, it should be stored in a dry place, away from water sources and moisture. If it is in a warehouse, it should be well ventilated to prevent moisture accumulation.
Second, temperature control is very important. High temperature may cause it to decompose or cause other unstable reactions. It should be stored in a low temperature environment, usually 2-8 ° C. If the conditions are not allowed, it should also be placed in a cool place with small temperature fluctuations.
Third, be sure to avoid contact with oxidants, acids, alkalis and other substances. 2 - The chemical properties of aminobenzene sulfonate phenyl ester make it easy to react with these substances. For example, contact with oxidants may cause violent oxidation reactions, and even the risk of explosion; contact with acids and bases may lead to structural changes and failure.
Fourth, during transportation, the packaging must be strong and well sealed. Choose suitable packaging materials, such as glass bottles with cushioning materials, or metal drums to seal the packaging to prevent collision and vibration from causing damage to the packaging and causing material leakage.
Fifth, the means of transportation should also be clean and dry, free of residual chemicals, especially those that can react with 2-aminobenzene sulfonate at 2-8 ° C. Transport personnel need to be familiar with its characteristics and emergency treatment methods. In case of leakage and other situations, they can respond in time and correctly to ensure the safety of personnel and the environment.
