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What are the main uses of 1-Acetoxy-3-Fluorobenzene?
1-Acetoxy-3-fluorobenzene has a wide range of uses. In the field of medicine, it is an important intermediate in organic synthesis. Due to the fluorine-containing group and acetoxy group, it is endowed with unique chemical properties, which can participate in various reactions, build complex pharmaceutical molecular structures, assist in the development of new drugs, or bring opportunities for the creation of drugs for the treatment of specific diseases.
In the field of materials science, it also has important applications. With its own structural characteristics, polymer materials can be introduced through specific reactions to optimize material properties, such as improving material stability, chemical resistance, etc., making materials suitable for more harsh environments, such as aerospace, electronic device manufacturing, etc.
In the fine chemical industry, 1-acetoxy-3-fluorobenzene is a key raw material for the synthesis of special chemicals. Through various chemical reactions, fine chemicals with special functions can be synthesized, such as special fragrances, additives, etc., to meet the needs of different industries for special chemicals, improve product quality and performance, and contribute to the diversified development of fine chemical products.
What are the physical properties of 1-Acetoxy-3-Fluorobenzene?
1-Acetoxy-3-fluorobenzene is also an organic compound. It has unique physical properties and is related to chemical research and industrial applications.
First of all, at room temperature, it is mostly a colorless to light yellow transparent liquid, which is clear in appearance and has no impurities mixed in it. This state facilitates its uniform dispersion in many reaction systems, which is conducive to the progress of the reaction.
As for the boiling point, it is about a certain temperature range. This temperature value is crucial for chemical operations such as distillation and separation. With its boiling point, it can be effectively separated from the mixture by distillation to obtain a pure product.
Melting point is also a key physical property. Knowing the melting point, during storage and transportation, it can control the temperature conditions to ensure that it exists in a proper physical state, so as not to change the shape of the substance due to temperature discomfort and affect the quality.
In terms of density, specific values give it a specific position in the liquid-liquid mixing system. In extraction and other operations, it can be effectively separated according to its density and other liquids.
Solubility cannot be ignored. 1-Acetoxy-3-fluorobenzene exhibits good solubility in organic solvents such as ethanol and ether, but poor solubility in water. This property determines its application in different solvent systems. In organic synthesis reactions, suitable organic solvents can be selected to promote the smooth development of the reaction.
In addition, its volatility also has characteristics. Moderate volatility, in some coatings and inks application scenarios, it can evaporate in a timely manner, causing the coating or ink layer to dry and form a film. However, if the evaporation is too fast or too slow, it may affect the final quality of the product.
The physical properties of 1-acetoxy-3-fluorobenzene are diverse, and each property is related to each other. It is of great significance for applications in many fields of chemistry and chemical industry. In-depth understanding and good use can give full play to its maximum value.
1-Acetoxy-3-Fluorobenzene chemical synthesis methods
The synthesis method of 1-acetoxy-3-fluorobenzene used to be carried out in several ways.
First, m-fluorophenol is used as the beginning, so that it can react with acetyl chloride or acetic anhydride under suitable conditions. M-fluorophenol has an active phenolic hydroxyl group, and can be acylated in case of acetyl chloride or acetic anhydride. If acetyl chloride is used, it is often carried out in the presence of a base, such as pyridine or triethylamine. This base can neutralize the hydrogen chloride generated by the reaction and cause the reaction to shift to the right. The reaction mechanism is that the oxygen atom of the phenolic hydroxyl group attacks the acetyl group nucleophilically, and the chlorine leaves to form an ester. If acetic anhydride is used, sulfuric acid or p-toluenesulfonic acid is often used as a catalyst to cause the reaction to occur by heating. During this process, acid catalysis polarizes the carbonyl group of acetic anhydride, making it more susceptible to phenolic hydroxyl nucleophilic attack, and then generates the target product 1-acetoxy-3-fluorobenzene.
Second, m-fluorobenzoic acid is used as the starting material. First, m-fluorobenzoic acid is converted into acyl chloride, which is often treated with dichlorosulfoxide or tri-phosphorus chloride to obtain m-fluorobenzoyl chloride. Then, metal fluorides such as potassium fluoride are reacted with it and in a suitable solvent, such as N, N-dimethylformamide (DMF), to form m Finally, m-fluorobenzoyl fluoride is reacted with alkoxides such as sodium methoxide, and 1-acetoxy-3-fluorobenzene can be obtained through transesterification. Although there are many steps in this pathway, the selectivity of each step is still acceptable, and a certain yield can be obtained.
Starting with fluorine-containing aromatic hydrocarbon derivatives, 1-acetoxy-3-fluorobenzene can also be obtained through multi-step functional group transformation, the introduction of suitable substituents first, and then acylation or other ester-forming reactions. These methods have advantages and disadvantages. The experimenter should weigh and choose according to many factors such as the availability of raw materials, the difficulty of controlling the reaction conditions, and the cost.
What is the price range of 1-Acetoxy-3-Fluorobenzene in the market?
I look at this question, but I am inquiring about the price range of 1-acetoxy-3-fluorobenzene in the market. However, this is not an easy matter, and its price is affected by many factors.
First, the amount of influence is quite large. If it is purchased in large quantities, merchants may give discounts due to economies of scale, and the price may be lower; if only a small amount is needed for experiments, the price may be higher.
Second, the place of origin is also the key. Different origins, due to differences in raw material costs and production processes, have different prices. High-quality raw materials and well-crafted places produce high prices.
Third, the relationship between supply and demand in the city is important. If there are many buyers, the supply is insufficient, and the price will rise; if the supply exceeds the demand, the merchant may reduce the price to promote.
Fourth, seasonal changes also play a role. In some periods, due to changes in raw material output and transportation conditions, the price may fluctuate.
To sum up, it is difficult to determine the price without specific conditions. It is roughly equivalent to the experimental dosage, ranging from tens to hundreds of yuan per gram; if it is purchased in large quantities by industry, the price per ton may range from thousands to thousands of yuan. However, this is only a rough guess, and the actual price still needs to be consulted in detail with the relevant chemical raw material suppliers to obtain an accurate number.
What are 1-Acetoxy-3-Fluorobenzene storage conditions?
1-Acetoxy-3-fluorobenzene is an organic chemical substance. The first thing to store it is to choose a cool and dry place. This is because the substance is prone to chemical changes due to heat, and it may have adverse reactions in case of moisture.
It is advisable to store it in a closed container to prevent excessive contact with the air. Oxygen, water vapor, etc. in the air may react with 1-acetoxy-3-fluorobenzene, damaging its purity and quality.
Furthermore, it is crucial to stay away from fire and heat sources. This substance may be flammable, and near fire is dangerous, or it may cause fire or even explosion.
At the same time, the storage place should also be kept away from oxidizing agents. Because 1-acetoxy-3-fluorobenzene meets the oxidizing agent, it is easy to induce violent chemical reactions and endanger safety.
In addition, a clear sign should be set up at the storage place, indicating that the storage is 1-acetoxy-3-fluorobenzene, and its dangerous characteristics should be marked, so that the relevant personnel can clearly understand, so as to facilitate protection and operation.
During the whole process of access and storage, safety procedures should be strictly followed. Operators need to wear appropriate protective equipment, such as protective gloves, goggles, etc., to avoid direct contact with the substance and ensure personal safety. Therefore, it is necessary to properly store 1-acetoxy-3-fluorobenzene to avoid damage and loss due to improper storage.