N - ethylbutylamine, also known as the compound. The reaction can be determined as follows:
This substance is a compound of amines, and the compound of amines is a derivative obtained by the substitution of the atom of amines by the group of amines.
For N - ethylbutylamine, in the ammonia molecule ($NH_3 $), one of the atoms on the nitrogen atom is substituted by ethyl ($C_2H_5 - $), and the other is substituted by butyl ($C_4H_9 - $).
Ethyl is composed of a carbon atom and a five-atom, in the form of $- CH_2CH_3 $. Butyl does not have four carbon atoms, which is $- C_4H_9 $, and butyl exists in multiple forms. However, in this compound, the form of butyl is not specified, and it is usually n-butyl, that is, $- CH_2CH_2CH_2CH_3 $.
Therefore, the formula of N-ethylbutylamine can be $C_4H_9NHCH_2CH_3 $to show its special properties composed of butyl, nitrogen atom and ethyl group. In this case, the carbon atom of the nitrogen atom~ butyl and the carbon atom of the ethyl group are combined in a common phase to form a certain amine compound.

N-ethylbutylamine has many main uses. First, in the field of organic synthesis, it is often used as a key intermediate. It has an active amino group and a specific carbon chain structure, and can react with various compounds through condensation and substitution to obtain other organic compounds. If reacted with acyl halides, it can form amides, which are important in the fields of medicine, pesticides and materials. In medicine, some amide drugs have unique physiological activities; in pesticides, some amide compounds are effective insecticidal and bactericidal ingredients; in terms of materials, it can be used to prepare high-performance polymers.
Second, it is also important for the preparation of surfactants. Because its molecules contain lipophilic alkyl groups and hydrophilic amino groups, it can have certain surface activities. After appropriate chemical modification, it can be made into non-ionic or cationic surfactants. Non-ionic types are widely used in detergents and emulsifiers, which can reduce the surface tension of liquids, make oil easily dispersed, emulsified and cleaned; cationic types are commonly used in the fields of fabric softeners and antistatic agents, which can be adsorbed on the surface of fabrics to improve the feel and antistatic properties of fabrics.
Third, it has applications in the field of catalysis. Because of its basic amino group, it can be used as an organic base catalyst. In some organic reactions, such as ester exchange and acetal (ketosis) reactions, it can effectively promote the reaction, improve the reaction rate and yield.
Fourth, it is also useful in the petrochemical industry. Can be used in the preparation of crude oil demulsifiers. Crude oil often contains emulsified water, which affects subsequent processing and transportation. N-ethylbutylamine related demulsifiers can destroy the oil-water emulsification system, separate water, and ensure crude oil quality and processing efficiency.

N-ethylbutylamine, Chinese name N-ethylbutylamine. This is a chemical compound, with general physical properties.
Its external appearance is often in the color of the liquid, the taste is special, and it has an ammonia-like taste. It is slightly pungent. In terms of solubility, it is slightly soluble in water, and can be more soluble. For example, ethanol, ether, etc. are miscible. This property is due to the proportion of hydrophobic groups in its molecules.
Melting is also an important physical property. Its boiling is affected by the molecular force, which is roughly certain. Under normal conditions, it can be boiled at a certain degree because of the energy required to overcome the molecular force. The melting phase is low and usually solidifies at low temperatures.
The density also has a specific value, which is specific to water. If placed in water, it will float on the surface of the water. In addition, N-ethylbutylamine has properties. Under normal conditions, some liquid molecules can easily obtain sufficient energy and enter the phase, making its smell easy to be sensed.
These physical properties are very important for their application in the fields of chemical synthesis, engineering and scientific research, etc., and different uses are determined.

To prepare N-ethylbutylamine, it can be obtained by reacting halogenated hydrocarbons with ammonia or amines. First, take n-butyl halide, such as n-butyl bromide, and ethylamine in a suitable solvent, add a base such as potassium carbonate to promote the reaction. The halogen atom of halogenated hydrocarbons is highly active, and the nitrogen atom of ethylamine has a lone pair of electrons. Both can undergo nucleophilic substitution reaction.
During the reaction, the nitrogen of ethylamine attacks the α-carbon atom of n-butyl bromide, and the bromine ion leaves to form a salt of N-ethylbutylamine, which is treated with a base to free out the target product.
Or the butyraldehyde and First, butyraldehyde is mixed with ethylamine to form an imine intermediate under the catalysis of weak acid, and then reduced with a reducing agent such as sodium borohydride, and the imine is converted into N-ethylbutylamine. In this process, sodium borohydride provides hydrogen negative ions to hydrogenate and reduce the imine double bond to achieve the preparation of the product.
These two methods have their own advantages and disadvantages. The raw materials for the nucleophilic substitution method of halogenated hydrocarbons are easy to obtain, but there are many side reactions; the reduction amination method has good selectivity and the operation is slightly complicated, so it needs to be selected according to the actual situation.

N-ethylbutylamine is an organic compound. When using it, many things must be paid attention to.
First, this substance is toxic and irritating. If it touches the skin, or causes skin irritation, it will appear red, swollen and itchy. If it is not carefully entered into the eyes, it can cause serious damage to the eyes and damage vision. Sniffing its volatile breath can irritate the respiratory tract, causing coughing, asthma, and even affecting respiratory function. Therefore, when operating, be sure to take good protection. Protective clothing, protective gloves, and goggles are also indispensable, and should be operated in a well-ventilated place to prevent gas accumulation.
Second, N-ethylbutylamine is flammable. In case of open flames, hot topics, it is easy to burn, and even cause explosions. When storing, keep away from fire and heat sources, place in a cool and ventilated place, and do not mix with oxidants to prevent dangerous chemical reactions. During transportation, it also needs to be properly handled according to the specifications of flammable materials.
Third, its chemical properties are active. It will react with many substances. When using, the reaction conditions should be precisely controlled. Such as reaction temperature, pH, etc. If the temperature is too high or too low, the reaction may be out of control or the desired effect cannot be achieved. Unsuitable pH will also affect the reaction process.
Fourth, after use, the remaining N-ethylbutylamine must be properly disposed of. Do not dump at will to avoid polluting the environment. It is necessary to follow relevant regulations and use appropriate methods to ensure that it does not cause harm to the surrounding environment.
In short, the use of N-ethylbutylamine, safety first, and meticulous operation can prevent problems before they occur, and ensure the safety of personnel and the environment.