Chemical Formula | C7H4F2O |
Molecular Weight | 142.10 |
Appearance | Colorless to light yellow liquid |
Boiling Point | 195 - 196 °C |
Density | 1.263 g/cm³ |
Solubility In Water | Insoluble |
Solubility In Organic Solvents | Soluble in common organic solvents like ethanol, ether |
Flash Point | 74 °C |
Odor | Characteristic aromatic odor |
Cas Number | 22635-12-3 |
Chemical Formula | C7H4F2O |
Molecular Weight | 142.10 |
Appearance | Colorless to light yellow liquid or solid |
Boiling Point | 187 - 189 °C |
Melting Point | 18 - 20 °C |
Density | 1.279 g/cm³ |
Flash Point | 65 °C |
Solubility | Insoluble in water, soluble in organic solvents like ethanol, ether |
Vapor Pressure | Low vapor pressure |
Odor | Characteristic aromatic odor |
Stability | Stable under normal conditions, but may react with strong oxidizing agents |
Chemical Formula | C7H4F2O |
Molecular Weight | 142.102 |
Appearance | Colorless to light yellow liquid |
Boiling Point | 186 - 188 °C |
Melting Point | 10 - 12 °C |
Density | 1.276 g/mL at 25 °C |
Flash Point | 69 °C |
Solubility | Insoluble in water, soluble in organic solvents like ethanol, ether |
Odor | Characteristic aromatic odor |
Refractive Index | 1.505 - 1.507 (20 °C) |
Chemical Formula | C7H4F2O |
Molecular Weight | 142.102 g/mol |
Appearance | Colorless to light yellow liquid or solid |
Boiling Point | 183 - 185 °C |
Melting Point | 16 - 18 °C |
Density | 1.299 g/cm³ (20 °C) |
Flash Point | 66 °C |
Solubility In Water | Insoluble |
Solubility In Organic Solvents | Soluble in common organic solvents like ethanol, ether |
Odor | Characteristic aromatic odor |
Cas Number | 1438-30-8 |
What are the main uses of 3,4-difluorobenzaldehyde?
3,4-Diethylhexamide has been used in various fields throughout the ages. In the field of medicine, this is the key raw material for the synthesis of many drugs. Due to its unique chemical properties, it can participate in the construction of drug molecules and help drugs exert their curative effects. For example, in the preparation of some analgesic drugs, 3,4-diethylhexamide plays an important role, enabling drugs to precisely act on targets in the body and relieve pain.
In the chemical industry, its use is also quite extensive. In the preparation of plastic additives, the addition of this substance can improve the properties of plastic products. Such as enhancing the flexibility of plastics, making them less brittle and improving the durability of plastic products, thereby broadening the application range of plastic products in daily life and industrial production. And in the manufacturing process of coatings, 3,4-diethylhexamide can be used as a solvent or additive to optimize the coating performance of coatings, making them adhere more evenly to the surface of objects, and enhancing the luster and durability of coatings.
Furthermore, in the process of scientific research and exploration, 3,4-diethylhexamide is also indispensable. Scientists often use it as a starting material to carry out research on various organic synthesis. Through the modification and modification of its structure, the search for compounds with novel properties provides new opportunities and directions for the development of many frontier fields such as materials science and drug research and development. It is like a key to open unknown doors in the field of scientific research, promote the continuous development of science and technology, and contribute to the progress of mankind.
What are the preparation methods of 3,4-difluorobenzaldehyde?
The preparation method of 3,4-diethoxyphenylacetonitrile can be done from the following ways.
First, phenylacetonitrile is used as the starting material. First, take an appropriate amount of phenylacetonitrile, place it in a clean reactor, and add an appropriate amount of alkali, such as sodium ethyl alcohol, as a catalyst. Then slowly add halogenated ethyl ether, such as brominated ethyl ether. During this process, the reaction temperature must be strictly controlled, and it should be maintained in a moderate range, such as 30-50 degrees Celsius, to promote the full reaction of the two. After the reaction is completed, 3,4-diethoxyphenylacetonitrile can be obtained by conventional separation and purification methods such as extraction and rectification. The mechanism of the reaction is that the alkali prompts the activation of α-hydrogen of phenylacetonitrile, and the halogen atoms of halogenated ether are attacked by nucleophiles and leave, and then form the target product.
Second, 3,4-dihydroxyphenylacetonitrile is used as the raw material. Place 3,4-dihydroxyphenylacetonitrile in a reaction vessel, add ethanol and an appropriate amount of concentrated sulfuric acid, which acts as both a catalyst and a dehydrating agent. Heating makes the reaction take place. At this time, the temperature should be controlled at 100-120 degrees Celsius. The substitution reaction between ethanol and dihydroxyl groups occurs to remove water molecules and gradually generate 3,4-diethoxyphenylacetonitrile. After the reaction is completed, the excess sulfuric acid is neutralized in sodium bicarbonate solution, and then the product is purified by separation and distillation.
Third, start from 3,4-diethoxybenzoic acid. First, 3,4-diethoxybenzoic acid is converted into its acid chloride, which can be reacted with dichlorosulfoxide by co-heating. The resulting acid chloride is then reacted with ammonia to obtain an amide, and then dehydrated to produce 3,4-diethoxyphenylacetonitrile by the action of a dehydrating agent such as phosphorus pentoxide. Although this process step is complicated, the reaction conditions of each step are relatively mild, and if properly operated, the product with higher yield can also be obtained.
The above preparation methods have their own advantages and disadvantages. In practical applications, the choice should be weighed according to factors such as the availability of raw materials, cost, yield and equipment conditions, in order to achieve the optimal preparation effect.
What is the market price of 3,4-difluorobenzaldehyde?
In today's world, business conditions are ever-changing, and it is difficult to determine the market price of 3,4-diethylphenylacetonitrile. Its price often changes due to various reasons, and it cannot be hidden in a single word.
Looking at the source of materials, if there are many producers and their sources are abundant, the price may become more affordable; if the source is scarce and difficult to obtain, the price must be high. Furthermore, the demand of the market is also the main reason. Those who need it, the demand exceeds the supply, and the price will rise; if the supply exceeds the demand and the market is overstocked, the price will drop.
The simplicity of the process is also related to its price. If the technique is difficult, requires a lot of effort, and consumables are also large, the price will be high; if the technique is easy and cost-effective, the price will be slightly lower.
And there are various foreign affairs, such as changes in government orders, transportation convenience, and the stability of the current situation, which can disturb its price. To know the market price of 3,4-diethylphenylacetonitrile, one must carefully observe the market situation, investigate it from time to time, and comprehensively consider various factors to obtain its approximate price. However, it is only a temporary price, and it is difficult to make a long-term estimate.
What are the precautions for storing and transporting 3,4-difluorobenzaldehyde?
3% 2C4-diethylanisole is an organic compound. During storage and transportation, pay attention to the following things:
First, when storing, it should be placed in a cool and ventilated warehouse. Because of its flammability, high temperature or open flame is prone to danger, and a cool and ventilated place can reduce the risk of fire. The temperature of the warehouse should be controlled within an appropriate range, generally not exceeding 30 ° C. And keep away from fire and heat sources, and it is strictly forbidden to carry out hot work near the warehouse.
Second, it should be stored separately from oxidants and acids, and should not be mixed. 3% 2C4-diethylanisole in contact with oxidizing agents, or cause violent chemical reactions, or even explosions; mixed with acid substances, may also react, cause deterioration of substances or produce dangerous products.
Third, the storage container must be well sealed. This compound may evaporate, and poor sealing will cause it to evaporate into the air. First, it will cause material loss, and second, it will evaporate gas or cause environmental pollution, or even form a flammable mixture, increasing the risk of fire and explosion.
Fourth, when transporting, make sure that the container does not leak, collapse, fall, or damage. Transportation vehicles should be equipped with the corresponding variety and quantity of fire equipment and leakage emergency treatment equipment. During driving, avoid exposure to the sun, rain, and high temperature.
Fifth, the handling process must be light and light to prevent damage to the packaging and containers. Due to damaged packaging or material leakage, handling leaked materials is not only troublesome, but also dangerous when the leaked materials come into contact with air, fire sources, etc.
What are the physical and chemical properties of 3,4-difluorobenzaldehyde?
3,4-Diethylhexanamide has unique physical properties and chemical properties. In terms of physical properties, under room temperature, it is mostly colorless and transparent, as clear as water, and the texture is warm and moist, as if it is not heavy. Its smell is slight but not pungent, and there is no strong impact on the smell, but it has a unique smell, which can be faintly felt.
Looking at its solubility, it can be well blended in common organic solvents, such as ethanol and ether, just like water and emulsion, and it is indistinguishable from each other. However, in water, its solubility is poor, just like oil and water, and it is distinct.
When it comes to chemical properties, 3,4-diethylhexanamide is quite stable. Under normal conditions, it is not easy to react violently with common acids and bases, as if it is noisy and quiet. However, under severe conditions such as specific catalysts and high temperatures, it can also show a lively state. In case of strong oxidants, under suitable conditions, oxidation reactions can occur, and its molecular structure will change, like a calm lake thrown into a boulder, creating layers of ripples.
In its molecular structure, specific functional groups give it special reactivity. The amide group allows it to participate in some unique organic synthesis reactions. In the field of organic chemistry, it is like a unique chess piece, playing a key role in a specific chess game.
Such physical and chemical properties make it unique in many fields, such as the preparation of certain special materials, the medium of specific chemical reactions, etc., and can be seen in the industrial and scientific research arena, silently demonstrating its own value.