2-(2-Chloro-4-nitro-phenoxymethyl)-pyridine

2-%282-%E6%B0%AF-4-%E7%A1%9D%E5%9F%BA-%E8%8B%AF%E6%B0%A7%E5%9F%BA%E7%94%B2%E5%9F%BA%29 chemical substances, whose main uses are not directly recorded in "Tiangong Kaiwu", but can be inferred from the relevant processes and chemical principles.
In ancient times, although there was no compound with this precise name, it was related to the production process or involved. Take alchemy and metallurgy as an example. In order to seek immortality, alchemists perform roasting and compounding operations on various minerals in the process of refining pills. Metallurgical craftsmen also need to extract metals from ores through complex means. In such processes, compounds containing nitrogen, phosphorus and other elements often appear as additives or intermediate products. 2-%282-%E6%B0%AF-4-%E7%A1%9D%E5%9F%BA-%E8%8B%AF%E6%B0%A7%E5%9F%BA%E7%94%B2%E5%9F%BA%29 if they contain specific functional groups, or play a role in some oxidation-reduction reactions and chemical reactions.
From the perspective of agriculture, although there was no concept of modern chemical fertilizers in ancient times, it also paid attention to the maintenance and improvement of soil fertility. Some natural substances containing nitrogen and phosphorus, such as animal manure and plant residues, can be applied to the field after fermentation, which can promote crop growth. If 2-%282-%E6%B0%AF-4-%E7%A1%9D%E5%9F%BA-%E8%8B%AF%E6%B0%A7%E5%9F%BA%E7%94%B2%E5%9F%BA%29 is stable and can slowly release nutrients, it can be used as a potential fertilizer to enhance soil fertility and help agricultural crops thrive.
In the printing and dyeing industry, ancient dyeing techniques are rich and diverse, and many natural dyes need special treatment or additives to achieve the ideal dyeing effect. 2-%282-%E6%B0%AF-4-%E7%A1%9D%E5%9F%BA-%E8%8B%AF%E6%B0%A7%E5%9F%BA%E7%94%B2%E5%9F%BA%29 if it has special chemical properties, it may play a key role in the process of dye fixing and mordant dyeing, making the fabric color more vivid and lasting.

2-%282-%E6%B0%AF-4-%E7%A1%9D%E5%9F%BA-%E8%8B%AF%E6%B0%A7%E5%9F%BA%E7%94%B2%E5%9F%BA%29 compound, often referred to as 2- (2-cyano-4-nitro-phenoxy) -methyl benzoate, has the following physical properties:
1. ** Appearance and Properties **: Under normal conditions, it is mostly a light yellow to white crystalline powder. Such appearance characteristics are quite common in many organic synthesis products, and its color and crystal form are determined by the conjugate system in the molecular structure and the intermolecular forces. Light yellow to white, suggesting that the electron transition energy level in the molecule is in a specific range, causing its absorption and reflection of visible light to show a corresponding hue.
2. ** Melting Point **: The melting point of the compound is roughly in a specific temperature range. As a key physical constant of a substance, the melting point is of great significance for the identification of its purity and the study of the phase state change under different temperature conditions. The melting point depends on the strength of the intermolecular forces, such as hydrogen bonds, van der Waals forces, etc. In this compound, the presence of benzene ring, cyano group, nitro group and other groups enhances the intermolecular forces, which in turn affects the melting point.
3. ** Solubility **: In terms of the solubility of organic solvents, it is soluble in common organic solvents, such as dichloromethane, N, N-dimethylformamide (DMF), etc. This is attributed to its molecular structure having both certain polar and non-polar regions, which can form a similar miscibility effect with organic solvents. In water, the solubility is poor, because the hydrogen bond network formed by water molecules does not match the intermolecular force of the compound, making it difficult to effectively disperse and dissolve.
4. ** Stability **: Under conventional conditions, it has a certain stability. However, due to the existence of functional groups such as cyano and nitro in the molecular structure, it may undergo chemical reactions under specific conditions, such as high temperature, strong acid, and strong alkali environment, resulting in structural changes. The strong electron absorption of nitro groups will affect the density distribution of electron clouds on the benzene ring, and under appropriate conditions, may trigger reactions such as nucleophilic substitution.

2-%282-%E6%B0%AF-4-%E7%A1%9D%E5%9F%BA-%E8%8B%AF%E6%B0%A7%E5%9F%BA%E7%94%B2%E5%9F%BA%29 compound, namely 2 - (2 - cyano - 4 - chlorophenyl - methoxyphenyl), is an important substance in the field of organic chemistry. Its chemical properties are unique and of great significance to organic synthesis and related fields.
From a structural point of view, the compound contains cyano, chlorophenyl and methoxyphenyl and other key functional groups. Cyanyl is active and has high reactivity. It can participate in many reactions such as nucleophilic substitution and addition, such as interacting with nucleophiles to form new carbon-nitrogen bonds, thereby constructing complex organic structures. In drug synthesis, it is often a key step in introducing specific active groups.
Chlorophenyl part, the presence of chlorine atoms changes the electron cloud density of the benzene ring, which affects the physical and chemical properties of the compound. Chlorine atoms have strong electronegativity, which decreases the electron cloud density of the benzene ring o and para-position, which is conducive to the electrophilic substitution reaction, and can realize the substitution or transformation of chlorine atoms by selecting suitable reaction conditions to synthesize derivatives with different functions.
The methoxy group in the methoxy phenyl group is the power supply group, which can increase the electron cloud density of the benzene ring, and interact with the electron-absorbing effect of the chlorophenyl group to jointly regulate the reaction activity and selectivity of the compound. In some organic reactions, the methoxy group can stabilize the reaction intermediate and promote the specific reaction path.
The chemical properties of this compound make it widely used in drug development, materials science and In drug research and development, drugs with specific pharmacological activities can be modified and optimized based on their structures; in materials science, organic materials with unique properties can be constructed by virtue of their reactivity, such as photoelectric materials, polymer materials, etc. In short, the chemical properties of 2 - (2-cyano-4-chlorophenyl-methoxyphenyl) provide broad space for research and application in many fields.

To prepare 2 - (2 - cyanogen - 4 - nitro - phenoxy - ethyl), the synthesis method is as follows:
First, the Williamson ether synthesis reaction can be carried out by phenolic compounds and halogenated alkanes under basic conditions. First, the phenolic hydroxyl-containing compounds are reacted with strong bases, such as sodium hydroxide and potassium hydroxide, to convert the phenolic hydroxyl group into a phenoxy negative ion, which has stronger nucleophilicity. Then, appropriate halogenated ethane derivatives are added, in which the ethyl group connected to the halogen atom (such as chlorine, bromine, etc.) has a target substituent (2 - cyanogen - 4 - nitro - phenoxy). The phenoxy anion attacks the carbon atom attached to the halogen atom of halogenated ethane, and the halogen atom leaves, thereby forming an ether bond and obtaining the main structure of the target product.
Furthermore, for the introduction of cyanyl groups, halogenated aromatic hydrocarbons can be reacted with cyanide reagents. For example, the reaction of halogenated benzene (with nitro groups in the ortho or para-position of the halogen atom) with cyanide reagents such as sodium cyanide and potassium cyanide in a suitable solvent (such as polar aprotic solvents such as N, N-dimethylformamide) is carried out. The cyanide anion replaces the halogen atom to form 2-cyanogen-4-nitro-halogenated benzene, which is then connected to the phenolic
In addition, nitro groups are often introduced by nitration reaction. Using benzene or its derivatives as raw materials, under the action of the mixed acid of concentrated sulfuric acid and concentrated nitric acid, an electrophilic substitution reaction occurs. The nitro group acts as an electrophilic agent to attack the benzene ring. According to the positioning rules, nitro groups can be introduced at suitable positions. After that, it is gradually reacted with compounds containing cyanide groups, haloalkyl groups, etc., and finally obtained 2- (2-cyano- 4-nitro-phenoxy-ethyl) through multi-step synthesis. During the reaction process, attention should be paid to the control of the conditions of each step of the reaction, such as temperature, pH, and the ratio of reactants, to ensure the smooth progress of the reaction and the purity of the product.

Nowadays, there is something called "2 - (2 - cyanogen - 4 - chlorophenyl - oxyphenyl - ethyl) ", and I want to know its price range in the market. This is a genus of fine chemicals, and its price varies depending on the quality, the supply and demand of the market, and the complexity and simplicity of the production.
If the quality is high and pure, it is suitable for high-end pharmaceutical or fine chemical synthesis. In addition, the market is eager, and it is quite difficult to make, its price will be high. Or it can reach tens or even hundreds of gold per gram.
If the quality is slightly inferior, it is only for general industrial use, and the market supply is more, and it is easier to make, the price will be low. Or just the number of gold per gram.
Or this substance is new, the research and development cost is high, and the initial price is also high. After the process is mature and mass production, the price may gradually decrease.
Market transactions are mostly based on batches. If the batch is large, the unit price may be given. And different regions and merchants have different prices.
Therefore, in order to determine the price, it is necessary to carefully consider the quality level, the actual situation of the market, and the number of purchased quantities before you can get a more accurate price.