Chemical Formula | C6H3F2S- |
Molar Mass | 145.15 g/mol (approximate value for the anion, depends on counter - ion for the full compound) |
Solubility | Solubility properties would depend on the solvent; likely more soluble in polar organic solvents |
Pka Of Conjugate Acid | The pKa of 2,4 - difluorobenzenethiol (conjugate acid) is around 6 - 7 (approximate, thiols are relatively acidic) |
Odor | Typical thiol - like odor, often described as strong, unpleasant, and garlic - like |
Reactivity | Reactive towards electrophiles; can participate in substitution and complex - formation reactions |
Chemical Formula | C6H3F2S- |
Molecular Weight | 145.15 |
Appearance | Typically a solid (but can vary based on counter - ion) |
Odor | May have a characteristic sulfur - like odor |
Solubility | Solubility can vary depending on the counter - ion; may be soluble in polar organic solvents like DMSO, DMF |
Melting Point | Depends on the salt form; no general value for the thiolate ion alone |
Stability | Can be air - sensitive, especially in the presence of oxidizing agents |
Reactivity | Reactive towards electrophiles; can participate in nucleophilic substitution reactions |
Chemical Formula | C6H3F2S− |
Molar Mass | 145.15 g/mol (approximate for the anion) |
Appearance | Typically exists as a salt, color and physical state depend on the cation |
Solubility In Water | Solubility varies depending on the cation, some salts may be sparingly soluble |
Solubility In Organic Solvents | Soluble in some polar organic solvents like DMSO, DMF |
Melting Point | Melting point is determined by the salt formed, e.g., if sodium salt, it has its characteristic mp |
Pka Of Conjugate Acid 2 4 Difluorobenzenethiol | Around 7 - 8 (approximate value) |
Odor | The free thiol has a pungent, sulfur - like odor, the anion may have a faint smell related to sulfur compounds |
Reactivity | Can act as a nucleophile in organic reactions, reacting with electrophiles such as alkyl halides |
What are the main uses of 2,4-difluorothiophenol salts?
2% lanthanum 2C4-diethylbenzenesulfonate, its main uses are as follows:
This is a useful catalyst in organic synthesis. In many organic reactions, such as esterification, it can significantly speed up the reaction rate and improve the conversion rate of the reactants. Just as "Tiangong Kaiwu" said: "In the world's skills, you can get a clever tool and get twice the result with half the effort." This salt is like that clever device. During esterification, by virtue of its own characteristics, it can effectively reduce the activation energy required for the reaction, so that the reaction that was originally difficult to occur can proceed smoothly. For example, in the preparation of ethyl acetate, adding an appropriate amount of 2% lanthanum 2C4-diethylbenzenesulfonate can make the reaction achieve a higher yield in a shorter time.
Furthermore, in some polymerization reactions, it can also play a key role. It can regulate the molecular structure and properties of polymers, just like craftsmen carefully carve utensils to make them have specific properties. When synthesizing polymer materials with specific properties, with the help of 2% 2C4-diethylbenzenesulfonate lanthanum salt, the molecular weight, molecular weight distribution and molecular chain regularity of polymers can be precisely controlled, so as to meet the diverse needs of polymer materials in different fields.
In addition, in the field of petrochemical industry, it also has its uses. It can be used for refining petroleum products, helping to remove impurities and improve the quality of oil products, just like screening high-quality raw materials, making the output more refined.
2% lanthanum 2C4-diethylbenzenesulfonate plays an indispensable role in many important fields such as organic synthesis, polymerization and petrochemical industry due to its unique chemical properties, and contributes to the development of various industries.
What are the physical properties of 2,4-difluorothiophenol salts?
2% 2C4-diethyl benzoin oxime ether, an organic compound. Its physical properties are as follows:
Viewed, it is often colorless to pale yellow liquid, and it can be seen in sunlight that it is clear and has a specific luster. This color characteristic is derived from the effect of its molecular structure on light, and its internal chemical bonds absorb and reflect different wavelengths of light differently, so it shows such a color.
Smell, emits a weak and specific odor. The cause of this odor lies in the specific functional groups contained in the molecule. The vibration frequency of the functional groups interacts with the nasal olfactory receptors, allowing us to perceive this unique odor.
When it comes to density, its value is slightly smaller than that of water, so it can float on the water surface when placed in water. This is because the intermolecular force is different from that of water molecules, resulting in different mass per unit volume.
As for solubility, it can be soluble in common organic solvents, such as ethanol, ether, etc. Due to the principle of "similar compatibility", its molecules are similar to the molecular structure of organic solvents, and the intermolecular force is suitable, so they can be miscible; while the solubility in water is extremely small, because the polarity of molecules and water molecules is quite different, it is difficult to form effective interactions.
Its boiling point is within a certain range. When the external temperature reaches this boiling point, the substance changes from liquid to gaseous state. This boiling point characteristic is closely related to the intermolecular forces, including van der Waals forces and hydrogen bonds. The strength of the forces determines the energy required for gasification, that is, the boiling point.
The melting point is the temperature at which the substance changes from solid to liquid. This temperature reflects the critical condition for the transformation of molecular arrangement from ordered solid to disordered liquid, and is closely related to the molecular structure. Molecules with regular structures have relatively high melting points.
The above physical properties are all determined by the molecular structure of 2% 2C4-diethylbenzooxime, which is of great significance for their applications in many fields such as chemical industry and materials.
What are the chemical properties of 2,4-difluorothiophenol salts?
2% 2C4-diethylbenzoic anhydride is an organic compound with the following chemical properties:
First, hydrolysis. In the presence of water, this anhydride can slowly hydrolyze to form 2% 2C4-diethylbenzoic acid. The hydrolysis reaction formula is roughly as follows: (RCO) O2 O + H2O O → 2RCOOH, where R represents 2% 2C4-diethylphenyl. This hydrolysis reaction is accelerated in acidic or alkaline environments. In alkaline environments, OH ions will attack the carbonyl carbon of the anhydride to form carboxylic salts, which can be obtained after acidification.
Second, alcoholysis. When met with alcohols, 2% 2C4-diethylbenzoic anhydride can undergo an alcoholysis reaction to form esters and carboxylic acids. For example, when reacted with ethanol, 2% 2C4-diethylbenzoic acid ethyl ester and 2% 2C4-diethylbenzoic acid will be formed. The reaction formula can be written as: (RCO) O + R'OH → RCOOR '+ RCOOH, R is 2% 2C4-diethylphenyl, R' is ethyl. This reaction often requires an acid or base as a catalyst to promote the reaction.
Third, aminolysis. In case of ammonia or amines, the anhydride will undergo an aminolysis reaction to form amides. Taking the reaction with ammonia as an example, 2% 2C4-diethylbenzamide and 2% 2C4-diethylbenzoate ammonium will be formed. The reaction formula is roughly: (RCO) 2O + 2NH 🥰 → RCONH 🥰 + RCOONH, R is 2% 2C4-diethylphenyl.
Fourth, nucleophilic substitution reactivity. Because its carbonyl is positively charged and vulnerable to attack by nucleophilic reagents, it is active in many nucleophilic substitution reactions. Strong nucleophilic reagents such as Grignard reagent can react with 2% 2C4-diethylbenzoic anhydride to form complex organic products.
Fifth, thermal stability. In a certain temperature range, 2% 2C4-diethylbenzoic anhydride can remain relatively stable. However, when the temperature is too high, decomposition reactions may occur, resulting in corresponding carboxylic acids, olefins and other products. The specific decomposition products depend on the conditions.
What is the synthesis method of 2,4-difluorothiophenol salt?
The synthesis of 2% 2C4-diethyl benzoin oxime ether is a key technique in the field of organic synthesis. The method is as follows:
First, the raw materials need to be prepared, and the appropriate starting materials should be selected. This is the basis for synthesis. Benzoin is usually used as the starting material, and because of the specific functional groups in its structure, it can be used as a check point for subsequent reactions.
Next, benzoin is reacted with suitable halogenated hydrocarbons, such as 2,4-diethyl halogenated hydrocarbons, under suitable reaction conditions. This reaction needs to be carried out under the catalysis of bases, which can promote the nucleophilicity of the active check point of benzoin, so that nucleophilic substitution reactions with halogenated hydrocarbons occur. Commonly used bases include potassium carbonate, sodium carbonate, etc. These bases can create a moderate alkaline environment in the reaction system to facilitate the reaction.
The reaction temperature is also a key factor. Generally speaking, the reaction temperature needs to be maintained within a certain range. If the temperature is too low, the reaction rate is slow and takes a long time. If the temperature is too high, it may cause side reactions and reduce the purity of the product. Usually the temperature can be controlled in a moderate range, such as 60-80 degrees Celsius, which can be fine-tuned according to the actual situation of the reaction.
The choice of reaction solvent should not be underestimated. Polar organic solvents are often used, such as N, N-dimethylformamide (DMF), dimethyl sulfoxide (DMSO), etc. These solvents can effectively dissolve the reactants, improve the contact probability of the reaction, and also have a certain impact on the reactivity and selectivity.
After the reaction is completed, the product needs to be separated and purified. Column chromatography, recrystallization method and other means can be used. Column chromatography can achieve effective separation of the two according to the polarity difference between the product and the impurity; recrystallization method allows the product to crystallize and precipitate from the solution by controlling the temperature and solvent, thereby improving the purity of the product.
Through this series of steps, high-purity 2,4-diethyl benzoin ether can be obtained. During the synthesis process, various reaction conditions need to be carefully controlled to achieve ideal yield and purity.
What are the precautions for storing and transporting 2,4-difluorothiophenol salts?
2% 2C4-diethylbenzoic anhydride is a chemical substance. When storing and transporting, many things need to be paid attention to to to ensure safety.
First, when storing, it should be in a cool, dry and well-ventilated place. This is because it has a certain chemical activity. If it is placed in a high temperature and humid place, it is easy to cause deterioration or chemical reactions. As "Tiangong Kaiwu" says, "Treasures must be suitable", that is, storage items must be selected in a suitable place according to their characteristics. And it should be kept away from fire and heat sources. Because it is flammable, it is dangerous to encounter open flames, hot topics or cause combustion and explosion.
Second, the storage needs to be separated from oxidants, acids, alkalis, etc., and must not be mixed. Because 2% 2C4-diethylbenzoic anhydride can react violently with these substances, such as the "Tiangong Kaiwu" mentioned the harm of mixing different substances, the same is true.
Third, during transportation, the packaging must be tight to ensure that there is no leakage. Appropriate means of transportation should be selected in accordance with relevant regulations, and the transportation should also be carried according to the specified route. Do not stop in densely populated areas or residential areas. "Tiangong Kaiwu" also emphasizes the standardized and orderly transportation, which is related to safety and stability.
Fourth, operators must undergo special training and strictly abide by the operating procedures. When handling, it should be handled lightly to prevent damage to packaging and containers. For example, there are fine requirements for various operations in "Tiangong Kaiwu", which is related to the safety of goods and personnel.
In short, the storage and transportation of 2% 2C4-diethylbenzoic anhydride must carefully follow various safety rules and not be slack, so as to ensure that everything goes smoothly and there is no risk of safety.