2,6-Dibromo-3-nitropyridine

2% 2C6-dichloro-3-cyanopyridine, which was not recorded in the era covered by Tiangong Kaiwu, but from today's perspective, its main uses are quite extensive.
In the field of pharmaceutical synthesis, it is a key intermediate. For example, the preparation of many antibacterial and antiviral drugs often relies on it to participate in the reaction. Taking a new type of antibacterial drug as an example, in its synthesis path, 2% 2C6-dichloro-3-cyanopyridine is skillfully spliced with other compounds through specific chemical transformation to build a molecular structure with antibacterial activity, providing a powerful weapon for humans to fight against the invasion of pathogens.
In the field of pesticide creation, it also plays an important role. The research and development of many high-efficiency and low-toxicity pesticides requires this as the starting material. Due to its structural characteristics, the chemically modified pesticides have high selectivity and strong lethality to pests, and are relatively friendly to the environment. They can effectively ensure the growth of crops, increase agricultural yield, and maintain ecological balance.
In terms of materials science, 2% 2C6-dichloro-3-cyanopyridine can be converted into functional materials through specific reactions. For example, it is used to prepare polymers with special photoelectric properties. Such polymers have shown potential application value in organic Light Emitting Diode (OLED), solar cells and other fields, promoting the development of related materials science and contributing to scientific and technological progress.

The synthesis method of 2% 2C6 -dibromo-3 -fluoronitrobenzene, although the synthesis of this specific compound is not directly described in Tiangong Kaiwu, it contains many chemical process ideas for reference.
In ancient chemical synthesis, the first raw materials are selected and refined. To obtain this compound, raw materials containing bromine, fluorine and nitro can be found. In ancient times, there were methods for extracting related elements from natural minerals or plants. If you want to obtain bromine, you can enrich it from bromine-containing water bodies such as salt lake brine and seawater by distillation, extraction and other means. It is difficult to obtain fluorine. In ancient times, fluorine-containing minerals such as fluorite were roasted and leached to obtain fluorine-containing compounds. The introduction of nitro groups is often derived from saltpeter. Saltpeter was also used in the production of ancient gunpowder. After special treatment, nitro groups can be introduced into organic molecules.
Control of reaction conditions is also key. Temperature control is crucial, and different reaction stages require different temperatures. Heating methods, in ancient times, there was charcoal fire heating, which controlled the temperature according to the size and distance of the heat. Or use water bath or oil bath methods to make the heating more uniform. The reaction time also needs to be accurately grasped. If it is too short, the reaction will be incomplete, too long or cause side reactions.
Catalyst selection cannot be ignored. Although it was difficult to have modern high-purity specific catalysts in ancient times, natural substances can be found to promote the reaction. Such as some metal ores, plant ashes, etc., the composition may have catalytic activity, which can accelerate the reaction process and improve the yield.
Separation and purification are also important. After the reaction, the product is mixed with impurities, which need to be separated and purified. There is an ancient filtration method, which uses fabrics, sand and gravel as filter media to remove solid impurities. The distillation method can separate the liquid mixture according to the difference in boiling point. The crystallization method controls the temperature and solvent concentration to make the product crystallize and precipitate for the purpose of purification.
Although the synthesis of 2% 2C6-dibromo-3-fluoronitrobenzene is not detailed in "Tiangong Kaiwu", its chemical process concept in terms of raw materials, conditions, catalysis, purification, etc., can provide ideas and directions for exploring its synthesis methods.

2% 2C6-dibromo-3-fluorobenzonitrile is an organic compound. Its physical properties are many. This compound is usually solid at room temperature, with a specific melting point and boiling point. The melting point is about [X] ° C, and the boiling point is about [X] ° C. This makes it possible to achieve its state transition by controlling the temperature under specific temperature conditions, which is of great significance for the separation and purification of chemical experiments and industrial production.
Looking at its appearance, it is mostly white to light yellow crystalline powder, and its color and morphology are helpful for preliminary identification. In terms of solubility, it has good solubility in organic solvents such as dichloromethane and chloroform, but its solubility in water is extremely low. In organic synthesis, this property is conducive to selecting suitable solvents for reaction and separation operations. With the help of differences in solubility in different solvents, separation from other substances can be achieved.
Its density is about [X] g/cm ³, which is indispensable when it comes to solution preparation and accurate calculation of the proportion of reactants. Density can assist in determining the mass of a certain volume of the compound, or the volume occupied by a certain mass of the compound, which is crucial to ensure that the chemical reaction proceeds according to the expected stoichiometric ratio.
Furthermore, the compound has a certain stability. Under conventional storage conditions, it can be stored in a dry and cool environment for a long time without significant decomposition. However, it is sensitive to light and heat, and light or high temperature may cause decomposition reactions or other chemical changes. Therefore, during storage and use, measures such as light protection and temperature control should be taken to maintain its chemical stability and ensure its effectiveness and reliability in practical applications.

Today there are 2,6-dibromo-3-nitropyridine, what is the market price? This is a product in the field of fine chemicals, and its price is affected by many factors.
First, it depends on the situation of supply and demand. If there are many people in the market, but there are few products, just like the principle that rare goods are expensive, the price will be high; on the contrary, if the supply exceeds the demand, the price will drop.
Second, the price of raw materials is also the key. To synthesize this 2,6-dibromo-3-nitropyridine, the price of various raw materials required will fluctuate, and the price of finished products will change. If the raw materials are expensive, the price of the finished product will be difficult to lower; if the price of the raw materials falls, the price of the finished product may drop.
Third, the influence of the production technique is quite deep. The delicate and efficient technique can reduce consumption and improve quality, reduce its cost, and the price may be dear; if the technique is clumsy and the consumption is huge, the price will be high.
Fourth, the quality is related to the price. High quality, suitable for the needs of high-end users, and the price can also be high; the quality is average, only suitable for ordinary use, and the price may be limited.
Overall, the market price of 2,6-dibromo-3-nitropyridine varies from a few yuan per gram to a few tens of yuan. It is difficult to determine the exact number. It must be determined according to the current market conditions.

2% 2C6-dibromo-3-nitropyridine is a key raw material and intermediate in organic synthesis. During storage and transportation, the following matters should be paid attention to:
First, when storing, place in a cool, dry and well-ventilated place. Because the substance may be sensitive to humidity and temperature, high temperature or humid environment is likely to cause it to deteriorate. If it is damp, it may cause chemical reactions that affect its quality; if the temperature is too high, it may also promote its decomposition and reduce its active ingredients, so it is essential to maintain suitable temperature and humidity conditions.
Second, be sure to store it separately from oxidizing agents, acids, bases and other substances. The chemical properties of 2% 2C6 -dibromo-3 -nitropyridine are relatively active, and it is very easy to produce chemical reactions with the above-mentioned substances. For example, when it encounters an oxidizing agent, a violent oxidation reaction may occur, and even cause combustion or even explosion. Therefore, strict separate storage can effectively avoid the emergence of such dangerous conditions.
Third, the storage place should be equipped with the corresponding variety and quantity of fire fighting equipment and leakage emergency treatment equipment. In the event of an accident such as a leak or fire, emergency treatment can be carried out in time to reduce the harm. For example, if a leak occurs, it can be collected and cleaned up with the help of leakage emergency treatment equipment to avoid its spread and pollution to the environment; in the event of a fire, suitable fire fighting equipment can be selected according to its chemical characteristics for fighting.
Fourth, during transportation, it is necessary to ensure that the container is well sealed. To prevent the container from being damaged due to bumps, collisions, etc. during transportation, which may cause material leakage. At the same time, the transportation vehicle should also have corresponding safety signs and protective measures to warn other road users and ensure transportation safety.
Fifth, the operator must undergo special training and strictly abide by the operating procedures. Whether it is in and out of the warehouse during storage or loading and unloading during transportation, professional operators can minimize the risks caused by improper operation. For example, if the operation is not standardized during loading and unloading, it may lead to damage to the container, which may lead to leakage and other dangers.