1 - (diethylamino) -4 -methylbenzene, which is one of the organic compounds. Its main uses are quite extensive and it has important applications in many fields.
In the field of medicine, it is often used as a key intermediate. With its specific chemical structure, it can participate in the drug synthesis process and lay the foundation for the creation of drugs with specific pharmacological activities. For example, in the preparation of drugs for the treatment of some neurological diseases, it may be used as a key starting material. After a series of chemical reactions, it can construct drug molecules with precise curative effects, helping to relieve diseases and cure diseases.
In the dye industry, it also plays an important role. Due to its own structural characteristics, it can give dyes unique color and stability. By reacting with other chemical substances, dyes with bright colors, good light resistance and washable properties can be synthesized, which are widely used in textile printing and dyeing and other industries to add colorful colors to fabrics.
In the field of materials science, it can be used to prepare materials with specific functions. Its chemical activity can make it composite with other materials, endow materials with new properties, such as improving the optical and electrical properties of materials, etc., and show unique value in the research and development and preparation of new optoelectronic devices and sensor materials, promoting the continuous development and innovation of materials science.

1 - (diethylamino) - 4 -methylnaphthalene, this substance is crystalline and white in color. Its melting point is between 102 and 104 ° C. Under conventional temperature and pressure, its properties are stable.
In terms of its solubility, it is difficult to dissolve in water, but it can be soluble in organic solvents such as ethanol, ether, and chloroform. In ethanol, it can be evenly dispersed and the solution is clear.
When it comes to volatility, at room temperature, its volatility is weak, and only a very small amount of molecules escape into the air. However, if the temperature increases, the volatility will increase.
In terms of density, 1- (diethylamino) -4-methylnaphthalene has a slightly lower density than water. If it is mixed with water, it will float on the water surface.
Its refractive index also has a specific value, and when light passes through, it will be refracted at a specific angle. This substance has absorption characteristics for specific wavelengths of light. In the ultraviolet-visible spectrum, characteristic absorption peaks can be observed. With this characteristic, it can be accurately detected qualitatively and quantitatively by means of spectral analysis.
In terms of stability, in general chemical environments, 1- (diethylamino) -4-methylnaphthalene is not easy to react with common acid and base substances. However, under extreme conditions of strong oxidants or strong acids and bases and high temperatures, its molecular structure may be damaged, chemically changed, and different products may be formed.

The chemical properties of 1 - (diethylamino) -4 -methylnaphthalene are related to its stability, which is a very important topic in chemical research.
In this compound, the diethylamino group is connected to the structure of methylnaphthalene, which has a great influence on its chemical properties. Diethylamino has the effect of a conductor, which can increase the electron cloud density of the benzene ring, thus affecting the reactivity and stability of the compound.
In terms of stability, from the perspective of electronic effects, the ethylamino group of the conductor can make the electron cloud distribution of the molecule more uniform, which enhances the stability of the molecule to a certain extent. However, the stability of organic compounds depends not only on electronic effects, but also on spatial steric hindrance. After diethylamino is connected to methylnaphthalene, the spatial structure becomes complex and the interaction between atoms increases. If the steric hindrance is too large, the tension within the molecule may increase, which may have an adverse effect on the stability.
Furthermore, the chemical environment also has a significant effect on the stability of 1- (diethylamino) -4-methylnaphthalene. Under different solvent, temperature, pH and other conditions, its stability will change. For example, in a strong acid or strong base environment, some chemical bonds of the compound may become active due to protonation or deprotonation, resulting in a decrease in stability. The high temperature environment may also promote reactions such as thermal decomposition of molecules, which reduce their stability.
Overall, the stability of 1 - (diethylamino) -4 -methylnaphthalene is not only affected by the electronic effects and steric resistance contained in its own structure, but also closely related to the external chemical environment. Only by comprehensively considering these many factors can we have a comprehensive and accurate understanding of its stability.

To prepare 1 - (diethylamino) -4 -methylnaphthalene, there are various methods.
First, the naphthalene can be started from the naphthalene. First, the naphthalene is acylated, and an appropriate acylation reagent, such as an acyl halide, is obtained under the action of a catalyst such as aluminum trichloride, under suitable reaction conditions, such as a certain temperature and solvent environment. Then the product is reduced, and a reduction system such as zinc amalgam and concentrated hydrochloric acid can be used to reduce the acyl group to an alkyl group, and then methyl groups are introduced. Then through an amination reaction, diethylamine and the like are used as amination reagents. Under suitable conditions, diethylamino groups are added to the molecules to obtain the target product 1- (diethylamino) -4-methylnaphthalene.
Second, naphthalene derivatives containing appropriate substituents can also be used as starting materials. If there are already methyl-containing naphthalene derivatives, they can be directly aminated. First, the naphthalene ring is activated to make the naphthalene ring more prone to nucleophilic substitution. Appropriate activation reagents and conditions can be selected. After that, diethylamine is added, and in the presence of a suitable base such as potassium carbonate, it is reacted in a suitable solvent and temperature to replace the group in the appropriate position with diethylamine to obtain 1- (diethylamino) -4-methylnaphthalene.
Third, the strategy of constructing naphthalene rings can also be considered. With suitable aromatic compounds, the naphthalene ring structure is first constructed through multi-step reaction. During the construction process, the reaction steps are cleverly designed so that methyl and diethylamino can be introduced at the expected position. For example, using aromatic nucleophilic substitution, cyclization and other reactions, the molecular framework is gradually built, and the required substituents are introduced to finally complete the synthesis of 1- (diethylamino) -4-methylnaphthalene.
The synthesis process requires attention to the precise control of the reaction conditions at each step, including temperature, reagent dosage, reaction time, etc., to ensure the smooth progress of the reaction and the good yield and purity of the target product.

Wen Jun inquired about the price of (diethylamino) -4-methylpyridine in the market. However, the price of this product often changes for many reasons, and it cannot be said in a word.
First, the supply and demand of the city is the key to affecting its price. If there are many people who want it, but there are few suppliers, the price will rise; conversely, if the supply exceeds the demand, the price may decline. Second, the price of raw materials for making this product also has an impact. If the price of raw materials is high, the cost of the product will increase, and the price will also rise; if the price of raw materials decreases, the price of the product may decrease. Furthermore, the process of making this product is difficult and easy, which is also related to the price. If the process is complex and requires a lot of effort and capital, the price will be high; if the process is simple, the price will be low.
In addition, the competitive situation of the market also plays a role in its price. If there are many competitors in the same industry, the competition will be intense, and the market will be contested, or there will be a price reduction; if there are few competitors in the same industry, and the monopoly will be successful, the price will be high. In addition, the regulation of government, the cost of transportation, etc., can make the price change.
As for the current exact price, it is difficult to say. If you want to know the details, you can consult the chemical product supplier, or check the quotation of the chemical product trading platform, to get a near-real price.