In "Tiangong Kaiwu", the main uses of aminonitrile are related to many fields. It is very important in chemical synthesis. It can be used as a key raw material for the preparation of various nitrogen-containing compounds. Due to its structure containing cyano and amino groups, the cap has unique chemical activity and can participate in various chemical reactions, resulting in the generation of many organic intermediates. It is of great significance in the preparation of medicine, pesticides and dyes.
Taking the field of medicine as an example, aminonitrile can be made into specific pharmaceutical ingredients through a series of delicate transformations. It can introduce key nitrogen atom groups into drug molecules, change the chemical properties and physiological activities of drugs, and help to develop better and more targeted drugs.
In the creation of pesticides, aminonitrile is also an indispensable raw material. By means of chemical synthesis, it can be converted into pesticide products with high insecticidal, bactericidal or herbicidal properties. Due to the special structure of aminonitrile, it can endow pesticides with a unique mechanism of action, improve the control effect on pests, and have a relatively small impact on the environment.
In the dye industry, aminonitrile can participate in the synthesis of dyes with bright colors and good stability. By reacting with other organic compounds, special chromophore groups are constructed to make dyes show rich colors and meet the diverse needs of textile, printing and dyeing industries.
Furthermore, aminonitrile has also emerged in the field of materials science. After appropriate modification and polymerization, polymer materials with special properties can be prepared, such as high-strength, high-toughness or functional polymers, which are used in high-end fields such as aerospace and automobile manufacturing.

What are the physical properties of 4-Jiang-2-Question-1-aminonaphthalene? This imitation of "Tiangong Kaiwu" answers this question in ancient words.
Aminonaphthalene is one of the organic compounds. Its properties are mostly crystalline or powder-like under normal circumstances. Looking at its color, it is often white to light yellow, and the color is plain.
When it comes to melting point, aminonaphthalene has a specific value. The number of its melting points varies depending on the position of the amino group on the naphthalene ring. For example, α-aminonaphthalene has a high melting point, between hundreds of degrees. This characteristic makes it melt from solid to liquid under moderate temperature.
As for solubility, the solubility of aminonaphthalene in water is quite small. Water is a common solvent, but aminonaphthalene has a poor affinity with it and can only dissolve slightly. However, in organic solvents, such as ethanol and ether, its solubility is greatly improved. The molecular structure of organic solvents such as ethanol and ether is compatible with aminonaphthalene, so aminonaphthalene can be more easily dissolved in them, or form a uniform solution.
Its density is also an important physical property. The density of aminonaphthalene is slightly different from that of water. Measured by mass per unit volume, its value is obtained according to the standard measurement method, and it is also different from the density of naphthalene and other related derivatives. This difference reflects the effect of molecular structure and composition on density.
Furthermore, aminonaphthalene has a certain degree of volatility. Although it is not as easy to escape as common volatile substances, under certain conditions, such as higher temperatures or prolonged exposure to air, some molecules will escape from the solid or liquid surface and escape into the gas phase.
The physical properties of aminonaphthalene, such as color, state, melting point, solubility, density and volatility, are determined by its unique molecular structure, and play a key role in its application and reaction in many chemical and industrial fields.

The chemical properties of 4-Jiang-2-Question-1-methylpyridine are stable?
The chemical properties of methylpyridine are quite stable in many situations. Methylpyridine contains nitrogen heterocycles, and the conjugated structure of the ring endows it with certain stability. This conjugate system makes the electron cloud distributed evenly, enhances the stability of the molecule, and is not easily disturbed by ordinary external factors.
And the methyl group is attached to the pyridine ring. Although the methyl group has a certain electron-giving effect, it does not have a severe impact on the overall stability of the pyridine ring. Under common temperature and pressure conditions, without the action of extreme reagents such as strong oxidants, strong acids or strong bases, methyl pyridine can maintain its own structure and properties unchanged.
For example, in room temperature and neutral environments, methylpyridine can be stored for a long time without significant chemical reactions. It can resist the slow oxidation of oxygen in the air, and does not easily react with water such as hydrolysis. Even in the case of general organic solvents, it is only physically mixed, and there are few chemical changes.
However, it is not said that the chemical properties of methylpyridine are absolutely stable. In the case of strong oxidizing agents, such as acidic potassium permanganate solution, the side chain methyl of the pyridine ring may be oxidized to form corresponding carboxylic acid derivatives. In the case of strong acids or bases, protonation or nucleophilic substitution can occur due to the presence of nitrogen atoms, indicating that its stability is limited under specific conditions.
In summary, the chemical properties of methylpyridine are relatively stable under conventional conditions, but in specific chemical environments, they will also exhibit chemical activity and react.

To prepare 4-hydroxy-2-ketone-1-methylindole, the method is as follows:
First take an appropriate amount of raw materials and mix them in a specific ratio. Wash and dry the reaction vessel to ensure that there is no impurity interference. Measure 2-methylindole with a clean instrument and place it in the reactor. This is the starting material of the reaction. Its purity is related to the quality of the final product, so it is necessary to choose carefully.
Then, slowly add reagents that can cause 4-hydroxylation and 2-ketonation. When adding reagents, pay attention to the speed, not too fast, to prevent the reaction from being too violent and out of control. In this process, temperature control is crucial. Maintaining a suitable temperature range allows the reaction to proceed in the desired direction. Use a warm fire and slow heat to gradually heat up the reaction system, and closely observe the signs of the reaction, such as color changes and bubble formation.
During the reaction process, stirring is also indispensable. Stir at a constant speed to fully contact the reactants to accelerate the process of the reaction and ensure that the reaction is uniform. When the reaction proceeds to a certain extent, specific detection methods, such as thin-layer chromatography, can be used to monitor the progress of the reaction and determine whether the reaction has reached the expected level.
After the reaction is completed, the product is separated and purified. The reaction mixture is first dissolved in a suitable solvent, and the impurities are removed by multiple extraction, filtration and other steps by taking advantage of the difference in solubility of different substances in the solvent. Subsequently, the product is further purified by distillation or recrystallization until the purity of the product meets the requirements. In this way, a relatively pure 4-hydroxyl-2-one-1-methylindole can be obtained for pharmaceutical or other purposes.

4-Jiang-2-Question-1-Methylnaphthalene needs to pay attention to many key matters during storage and transportation.
Methylnaphthalene is flammable, and when storing, a cool and ventilated warehouse should be selected. The warehouse temperature should be controlled in a suitable range, away from fire and heat sources, and prevent direct sunlight. Because it is flammable in case of open fire and hot topic, the lighting and ventilation facilities in the warehouse must be explosion-proof, and the switch should be placed outside the warehouse. At the same time, it should be stored separately from oxidants and acids, and should not be mixed in storage to avoid danger caused by violent reactions.
In the transportation process, the transportation vehicle must be equipped with the corresponding variety and quantity of fire equipment and leakage emergency treatment equipment. Summer transportation should be carried out in the morning and evening to prevent high temperature from volatilizing methylnaphthalene and increasing the danger. During transportation, exposure to sun, rain and high temperature should be protected. Vehicle exhaust pipes must be equipped with fire retardant devices, and mixed transportation with oxidants, acids, etc. is prohibited. During transportation, the speed of the vehicle should not be too fast, and it is not allowed to forcibly overtake the car to ensure smooth driving to prevent package damage due to bumps and collisions, which will cause methylnaphthalene leakage. When loading and unloading, it is necessary to pack and unload lightly. It is strictly forbidden to drop, heavy pressure and friction to avoid damage to the packaging container.
Transportation and storage personnel must undergo professional training and be familiar with the dangerous characteristics of methylnaphthalene, emergency treatment methods, etc. In the event of a leak, personnel from the leakage contaminated area should be Emergency personnel must wear self-contained positive pressure breathing apparatus and fire protection clothing. Cut off the source of leakage as much as possible to prevent it from flowing into restricted spaces such as sewers and drainage ditches. In the event of a small amount of leakage, it can be adsorbed or absorbed by sand or other non-combustible materials; in the event of a large amount of leakage, build a dike or dig a pit for containment, cover it with foam to reduce vapor disasters, and then transfer it to a tanker or a special collector with an explosion-proof pump for recycling or transportation to a waste treatment site for disposal. In this way, the safety of methylnaphthalene storage and transportation can be guaranteed to the greatest extent.