Chemical Formula | C7H7F2N |
Molecular Weight | 143.14 |
Appearance | Colorless to light yellow liquid |
Boiling Point | 184 - 186 °C |
Melting Point | N/A |
Density | 1.187 g/cm³ |
Flash Point | 71 °C |
Solubility In Water | Insoluble |
Vapor Pressure | N/A |
Odor | Ammonia - like odor |
Purity | Typically high - purity grades available (e.g., 98%+) |
Chemical Formula | C7H7F2N |
Molecular Weight | 143.14 |
Appearance | Colorless to light yellow liquid |
Boiling Point | 177 - 179 °C |
Melting Point | N/A |
Density | 1.173 g/cm³ |
Solubility In Water | Insoluble |
Solubility In Organic Solvents | Soluble in common organic solvents |
Flash Point | 60 °C |
Refractive Index | 1.486 - 1.488 |
Odor | Characteristic amine - like odor |
Pka | N/A |
What are the main uses of 3,4-difluorobenzyl amine?
3,4-Diethoxybenzaldehyde has a wide range of main uses. From the perspective of "Tiangong Kaiwu", it can be explored from various processes and people's livelihood.
In the production of fragrances, this compound is crucial. It has a unique aroma and can add a special charm to fragrances. "Tiangong Kaiwu" talks about the production of various aromas, all of which are to satisfy the world's good taste for fragrance. 3,4-Diethoxybenzaldehyde, with its aroma, can be used to prepare delicate incense recipes to obtain pleasant fragrances, which are used for incense, powder, etc., to increase the elegance of life.
In the field of medicine, it is also very useful. Although "Tiangong Kaiwu" does not elaborate on pharmaceutical chemistry, the importance of chemical substances in medicine cannot be ignored. 3,4-Diethoxybenzaldehyde can be used as a pharmaceutical intermediate to produce various drugs through a series of reactions. Or it can be used to synthesize compounds with specific curative effects to solve people's diseases, which is related to people's health.
In the dye industry, it also plays an important role. The dye production chapter in "Tiangong Kaiwu" is quite rich, which shows the importance of the ancient people on the dyeing process. 3,4-Diethoxybenzaldehyde can be chemically converted to produce bright and stable dyes. For fabric dyeing, it can make the fabric colorful and durable, meet the needs of the people for the beauty of clothes, and also promote the development of textile printing and dyeing industry.
In summary, 3,4-diethoxybenzaldehyde has important uses in flavors, medicine, dyes, and other industries, and has a profound impact on many aspects of people's livelihood. Although "Tiangong Kaiwu" does not directly describe this material, it is based on its concept that such chemicals are important in craftsmanship and people's livelihood.
What are the physical properties of 3,4-difluorobenzyl amine?
3% 2C4-diethylvaleronitrile is an organic compound. Its physical properties are as follows:
In terms of appearance properties, it is mostly a colorless to light yellow transparent liquid at room temperature. When pure, it has a clear appearance and no suspended impurities and precipitation. Under specific process conditions, it may appear slightly viscous.
In terms of melting point, it is about -60 ° C to -50 ° C. This low-temperature melting point allows the substance to maintain a liquid state in a lower temperature environment, showing good low-temperature fluidity. This property is of great significance in some chemical processes that require low-temperature operation. The boiling point of
is about 200 ° C to 210 ° C. This boiling point means that under normal pressure environment, the temperature needs to be raised to this range to promote the transformation from liquid to gaseous state. This is the key reference data in chemical operations such as distillation and separation. The density of
is about 0.8 g/cm3, which is similar to the density of common organic solvents. When mixing, preparing solutions, etc., the density parameters are indispensable for determining the proportion of each component and predicting the properties of the mixed system.
In terms of solubility, it is soluble in many organic solvents, such as ethanol, ether, acetone, etc., and can be well miscible with it, but it has very little solubility in water and is almost insoluble. This solubility characteristic is widely used in chemical processes such as extraction and phase transfer catalysis. < Br > In terms of volatility, it is relatively low. Under normal temperature and pressure conditions, the volatilization rate is relatively slow, which is extremely important to maintain its chemical stability and avoid losses and safety hazards caused by rapid volatilization during storage and use.
Odor has a weak and special irritating odor. Although it is not strong, it may still irritate the human respiratory tract and skin when exposed to high concentrations for a long time. Protective measures should be taken during operation.
Is the chemical property of 3,4-difluorobenzyl amine stable?
3% 2C4-diethylpyridine is an organic compound. The stability of its chemical properties is of great research value.
Generally speaking, pyridine compounds have a certain alkalinity due to the existence of nitrogen atoms. In 3% 2C4-diethylpyridine, the introduction of two ethyl groups has a significant impact on its chemical properties. Ethyl is an electron supply group, which increases the electron cloud density on the pyridine ring.
From the perspective of stability, its activity in some reactions will change due to the change of electron cloud density. Relatively speaking, the pyridine ring itself has a certain aromaticity and its structure is relatively stable. The chemical properties of 3% 2C4-diethylpyridine are relatively stable under common conditions without the interaction of specific reagents.
However, when encountering strong oxidizing agents, the pyridine ring may be oxidized, resulting in structural changes and impaired stability. Under acidic conditions, nitrogen atoms may be protonated, thus affecting the electron distribution and chemical activity of the whole molecule. If there are electrophilic reagents, the check point and activity of the electrophilic substitution reaction will also be different from that of the pyridine itself due to the change of the electron cloud density of the pyridine ring.
Overall, 3% 2C4-diethylpyridine is chemically stable under conventional environments and general conditions, but its stability will be affected by specific strong oxidation, strong acid-base or interaction with special reagents, resulting in corresponding chemical reactions.
What are the preparation methods of 3,4-difluorobenzyl amine?
3,4-Diethyladipic acid. To make it, there are various methods. The details are as follows:
First, the esterification method is adopted. Using adipic acid and ethanol as raw materials, put it in a reactor, add sulfuric acid as a catalyst, and heat it up to the appropriate temperature, usually between 120-150 ° C, so that the esterification reaction occurs. During this process, it is necessary to always pay attention to the progress of the reaction. By measuring the acid value to judge the degree of reaction. When the acid value reaches the expected, cool down, neutralize the sulfuric acid in alkali solution, and then remove impurities through water washing, distillation and other processes, 3,4-diethyladipic acid can be obtained. The reaction principle is that the carboxyl group of adipic acid and the hydroxyl group of ethanol are dehydrated to form esters under the catalysis of sulfuric acid.
Second, use the acid First, adipic acid is converted into adipic acid chloride, and chlorination reagents such as thionyl chloride are co-heated with adipic acid to obtain adipic acid chloride. Then, adipic acid chloride is reacted with alcohol salts such as sodium ethanol to form 3,4-diethyl adipic acid ester, which is hydrolyzed and acidified to obtain the final target product. In this path, when preparing adipic acid chloride, pay attention to the volatilization and toxicity of thionyl chloride, and operate in a well-ventilated place. The hydrolysis step is also critical, and the reaction conditions need to be controlled to ensure the yield and purity.
Third, the selection and shrinkage method. Prepare by condensation reaction with suitable ethyl-containing compounds and adipic acid derivatives. For example, ethyl acetoacetate derivatives and diethyl adipate are condensed under the action of strong bases, and then prepared by subsequent hydrolysis, decarboxylation and other reactions. In this process, the amount of strong bases and the reaction temperature need to be precisely controlled. Because strong bases are prone to side reactions, high or low temperatures will affect the formation of products. The hydrolysis and decarboxylation steps after the condensation reaction also need to adjust the conditions according to the reaction characteristics to obtain high-purity 3,4-diethyladipic acid.
What are the precautions for the storage and transportation of 3,4-difluorobenzamine?
3,4-Diethoxyacetophenone is an organic compound. When storing and transporting, pay attention to the following items:
First, storage. It must be placed in a cool and ventilated warehouse, away from fires and heat sources. Because of its flammability, it can cause combustion in case of open flames and hot topics, so the warehouse temperature should not exceed 37 ° C to prevent danger caused by excessive temperature. It should be stored separately from oxidants and acids, etc., and should not be mixed. Oxidants and acids may react chemically with them, causing potential safety hazards. The storage area should be equipped with leakage emergency treatment equipment and suitable containment materials, so that in the event of leakage, it can be responded to in time to avoid the spread of pollution.
Second, transportation regulations. During transportation, the transportation vehicle should be equipped with the corresponding variety and quantity of fire fighting equipment and leakage emergency treatment equipment. In summer, it is best to transport in the morning and evening to avoid high temperature periods. Due to high temperature, materials are easy to volatilize and increase the risk factor. The trough (tank) car used during transportation should have a grounding chain, and holes can be set in the trough to baffle to reduce shock and generate static electricity, and prevent static electricity from causing fire or explosion. It is strictly forbidden to mix and transport with oxidants, acids, etc. During transportation, it should be protected from exposure to sun, rain, and high temperature. Stopover should be kept away from fire, heat sources, and high temperature areas to ensure the safety of transportation. When loading and unloading, it should be handled lightly to prevent damage to packaging and containers. If the packaging is damaged, material leakage can easily cause accidents. Therefore, during the storage and transportation of 3,4-diethoxyacetophenone, the above precautions must be strictly followed to effectively avoid risks and ensure the safety of personnel and the environment.