2-Amino-3,5-dibromopyridine

2-Amino-3,5-dibromopyridine has a wide range of uses in the field of organic synthesis. First, it is often a key intermediate in drug synthesis. Due to its unique structure, the cap contains nitrogen heterocycles and bromine atoms, which can introduce different functional groups through various chemical reactions, such as nucleophilic substitution, coupling reactions, etc., and then construct complex drug molecular structures. For example, in the development of antibacterial drugs, the compound is combined with other molecules containing active groups by specific reactions to create drugs with novel antibacterial activity.
Second, it also has important functions in the field of materials science. Due to the characteristics of bromine atoms and amino groups, it can participate in polymerization reactions to prepare polymer materials with special optoelectronic properties. Such materials may be applied to organic Light Emitting Diodes (OLEDs), solar cells, etc., to help improve the performance and efficiency of the device.
Third, it also contributes to pesticide synthesis. It can be used as a starting material for the synthesis of high-efficiency and low-toxicity pesticides. By modifying its structure, pesticides can be given better insecticidal, bactericidal or herbicidal activities, while reducing the impact on the environment and non-target organisms, meeting the needs of modern green pesticide development.

There are several common methods for the synthesis of 2-amino-3,5-dibromopyridine. One is to use pyridine as the starting material, and first bromide the bromine atom at the 3rd and 5th positions. This bromination step is usually carried out in liquid bromine or N-bromosuccinimide (NBS) as the bromine source in suitable solvents such as dichloromethane and carbon tetrachloride in the presence of catalysts such as iron powder or iron tribromide. The nitrogen atom of pyridine is weakly basic and can interact with the catalyst to make the reaction more likely. After bromination, the product is nitrified, and then the nitro group is reduced to an amino group to obtain the target product.
Another way is to use 2-aminopyridine as raw material for direct bromination. This reaction is relatively simple. Because the amino group is an ortho-para-localization group, although the reaction will mainly generate 2-aminopyridine, by controlling the reaction conditions, such as adjusting the amount of bromine source, reaction temperature and time, the 3,5-dibromide product can also be dominated. The commonly used bromine source is still liquid bromine or NBS, and the solvent can be glacial acetic acid. During the reaction, the amino group can affect the selectivity of the reaction check point by forming salts and so on.
In addition, it can also be synthesized by some more complex multi-step reactions, such as the conversion of functional groups of pyridine derivatives, through a series of reactions such as halogenation and amination. However, such methods often require cumbersome operation and multi-step separation and purification, and strict control of reaction conditions. When synthesizing 2-amino-3,5-dibromopyridine, no matter what method is selected, it is necessary to comprehensively consider the availability of raw materials, cost, difficulty of reaction and purity of target products, and carefully design the synthesis route to achieve the purpose of efficient synthesis.

2-Amino-3,5-dibromopyridine is also an organic compound. Its physical properties are particularly important and are related to the many uses and characteristics of this substance.
Looking at its properties, at room temperature, it often appears in a solid state, mostly white to light yellow powder or crystal. The characteristics of this color state can help to identify the appearance. Its melting point is also one of the key physical properties, about 145-148 ℃. The determination of the melting point is of great significance for the identification and purification of this substance.
Furthermore, 2-amino-3,5-dibromopyridine has different properties in organic solvents in terms of solubility. It is easily soluble in common organic solvents, such as dichloromethane, N, N-dimethylformamide (DMF), etc. This solubility characteristic makes it easy to select suitable solvents in the reaction operation of organic synthesis to promote the reaction.
As for the density, although it has not been widely mentioned in the precise literature, it can be inferred that its density is higher than that of water based on its molecular structure and analogy with similar compounds. The density of this property is of certain value when it involves liquid-liquid separation or related physical processes. The physical properties of 2-amino-3,5-dibromopyridine, such as color state, melting point, solubility, etc., are the basis for the understanding and application of this compound, which plays a significant role in the synthesis of organic chemistry and related fields.

I look at this question and ask about the market price of 2 - Amino - 3,5 - dibromopyridine. However, the market price of this product often varies according to factors such as time and place, supply and demand, and quality, and it is difficult to determine a certain number.
Looking at the method of "Tiangong Kaiwu" in the past, if you want to know the details, you should look at the four cities. In today's world, you should also follow this path. First, you can visit the city where chemical raw materials are traded, and ask merchants to compare their prices, or you can find out one or two. Second, look at the online trading platform, where information is gathered, you can often get a glimpse of the price. However, the online price may be false, and it needs to be screened in detail.
Also, if there is a lot of demand, merchants may lower their prices to attract; if raw materials are scarce, the price will rise. The difference in quality is also related to the price. High purity, the price must be high; purity slightly lower, the price or cheap.
To get the exact market price of 2 - Amino - 3,5 - dibromopyridine, you must search for information widely, consider carefully, and combine time and place, supply and demand, and quality factors to get a more accurate price.

2-Amino-3,5-dibromopyridine is an organic chemical. When storing and transporting, many things must be paid attention to.
Bear the brunt, and the storage environment must be dry and cool. Because it may be hygroscopic, humid environments are prone to deterioration, affecting quality and purity. Excessive temperature can also promote chemical reactions, so it should be stored in a low temperature place, away from heat sources and direct sunlight.
Furthermore, this chemical should be properly sealed and stored. Exposure to air, or reaction with gases such as oxygen and carbon dioxide, which can change its chemical properties. After use, make sure that the container is well sealed to prevent air intrusion.
When storing, it should also be stored separately from oxidants, acids, alkalis and other substances. 2-Amino-3,5-dibromopyridine is chemically active, and contact with the above substances may cause violent reactions, or even the risk of explosion.
When transporting, the packaging must be tight and firm. Select suitable packaging materials to effectively avoid vibration, collision and damage to the container and chemical leakage. The transportation process should also maintain a stable environment to avoid large fluctuations in temperature and humidity.
In addition, the transportation and storage process must strictly follow relevant regulations and safety standards. Operators should be familiar with its characteristics and safety precautions. In the event of leakage and other accidents, they can take prompt and correct measures to ensure the safety of personnel and the environment is not polluted. In this way, 2-amino-3,5-dibromopyridine can be guaranteed to remain stable during storage and transportation to avoid adverse consequences.