2 6 Dimethyl 4 Iodobromobenzene

2% 2C6-dimethyl-4-nitrophenol, which is a light yellow crystalline solid with a special odor. It is acidic and alkaline, and the phenolic hydroxyl group can weakly ionize hydrogen ions, showing weak acidity, and can react with bases to form corresponding phenolic salts.
In terms of solubility, it is slightly soluble in water. Due to the influence of hydrophobic hydrocarbon groups, it has better solubility in organic solvents such as ethanol and ethyl ether. In terms of chemical properties, the nitro group is a strong electron-absorbing group, which reduces the electron cloud density of the phenyl ring and enhances the acidity of the phenolic hydroxyl group. At the same time, the nitro group is easily reduced, and under suitable conditions, it can be reduced to an amino group to form 2,6-dimethyl-4-aminophenol.
Phenol hydroxyl o and para-sites are affected by it, and the electron cloud density is relatively high, which is prone to electrophilic substitution reactions. For example, when reacting with bromine water, bromine atoms will replace phenol hydroxyl o and para-site hydrogen atoms.
From the stability point of view, it has certain stability to light and heat, but in case of open fire and hot topic flammable, the hot topic decomposes and releases toxic gases. Storage should be placed in a cool and ventilated place, away from fire and heat sources, and should be stored separately from oxidants and alkalis.

2% 2C6-dimethyl-4-nitrophenol, which is an important raw material and intermediate in organic synthesis. There are various preparation methods. Under the paradigm of "Tiangong Kaiji", it is described as follows in classical Chinese:
First, 2,6-dimethyl phenol is used as the starting material and can be obtained by nitrification reaction. First, take an appropriate amount of 2,6-dimethyl phenol and place it in a clean reactor. The kettle should be made of ceramic, which can slow down and heat evenly. Then, slowly add a carefully prepared mixed acid (nitric acid and sulfuric acid are mixed in an appropriate proportion). The mixing of acid needs to be measured carefully. Nitric acid is highly oxidizing, and sulfuric acid can help the reaction process. The ratio of the two is related to the purity and yield of the product. When adding acid, stir slowly with a wooden stick to make the material blend evenly, and the reactor needs to be placed in cold water to control the temperature, so as not to cause excessive temperature due to severe reaction and cause side reactions. When the reaction is stable and the number of stirring is continued, the reaction process is observed until the color and texture of the reaction solution are as expected. This nitrification step is achieved.
Second, other compounds containing nitro groups can also be prepared by reacting with 2,6-dimethylphenol derivatives. Choose the appropriate nitro-containing compound, and put it in the reaction kettle with 2,6-dimethylphenol derivatives in a certain proportion, and add an appropriate amount of catalyst. The choice of catalyst is crucial, it can promote the reaction rate, and does not cause side reactions. During the reaction process, it is necessary to adjust the temperature and pressure, or slowly heat with charcoal fire, and control the temperature with a bellows to stabilize the temperature within a specific range. The pressure is maintained by sealing and ingenious devices. Over time, the reactants interact to generate 2% 2C6-dimethyl-4-nitrophenol. Subsequent separation and purification are required to obtain a pure product. During separation, or by distillation, the product is separated from impurities according to the difference in boiling point of each substance; purification can be achieved by recrystallization, dissolving the product with a suitable solvent to remove impurities, and then cooling and crystallizing to obtain high purity 2% 2C6-dimethyl-4-nitrophenol.

2% 2C6-dimethyl-4-nitrophenol, which is used in medicine, pesticides, dyes and other fields.
In the field of medicine, it can be used as a pharmaceutical intermediate. Due to the special chemical structure of this compound, it can participate in many drug synthesis reactions and undergo a series of chemical transformations to become a pharmaceutical ingredient with specific pharmacological activities. For example, in the preparation of some antibacterial drugs, 2% 2C6-dimethyl-4-nitrophenol can be used as a starting material or a key intermediate. After modification and reaction, it can be used to obtain drugs that have inhibitory or killing effects on specific pathogens.
In the field of pesticides, it can be used to synthesize some high-efficiency pesticides. Due to its chemical properties, compounds that can repel, poison or inhibit the growth and development of pests can be derived. For example, by reacting with other reagents, insecticides for specific crop pests can be made to help agricultural pest control and ensure crop yield and quality.
In the field of dyes, 2% 2C6-dimethyl-4-nitrophenol can be used as an important raw material for synthetic dyes. By reacting with different chemical substances, dyes with different colors and excellent properties can be produced. Such dyes can be used in textiles, printing and dyeing and other industries to give fabrics rich colors, and have good light resistance, washing fastness and other properties.

2% 2C6-dimethyl-4-nitrophenol, which is crystalline and white or yellowish in color. Its melting point is critical, about 83-84 ° C, which determines its state transition at a specific temperature. In terms of boiling point, it is about 238 ° C, which reflects the temperature conditions required for its transformation from liquid to gaseous state.
In terms of solubility, it has limited solubility in water, but is easily soluble in organic solvents such as alcohols, ethers, and benzene. This property is due to the interaction between its molecular structure and solvent molecules. The molecular structure of organic solvents is more compatible with 2% 2C6-dimethyl-4-nitrophenol, which can form a relatively stable intermolecular force with it, thereby promoting dissolution.
In terms of chemical stability, it is relatively stable, but its structure will change when exposed to strong acids, strong bases or high temperature environments. Under the action of strong acids and bases, phenolic hydroxyl groups may react, and nitro groups may also be affected, triggering a series of chemical changes. At high temperatures, the thermal motion of molecules intensifies, which may lead to the breaking and recombination of chemical bonds. The density of
is about 1.19 g/cm ³. This physical quantity reflects its mass per unit volume and is of great significance for metrology, mixing and other operations involved in practical applications. In terms of odor, it has a relatively special odor, which originates from the functional groups in its molecular structure and the volatility of the whole molecule.
Because of its above physical properties, it is often used as an intermediate in organic synthesis in the chemical industry. The existence of its phenolic hydroxyl group and nitro group allows it to participate in a variety of chemical reactions. Through chemical modification, it can be converted into other organic compounds with specific functions, which are widely used in the preparation process of fine chemical products such as medicine and pesticides.

Today, there is 2,6-dimethyl-4-nitrophenol. What is the market price of the product? This is a business question. However, if you want to understand its price, you need to consider all the reasons in detail.
The price of a product in the market often changes with various factors. First, the situation of supply and demand is the key. If there is a lot of demand for this product in the market, and there are few suppliers, the price will increase; conversely, if the supply exceeds the demand, the price may drop. Second, the cost of production is also related. If the raw materials for the production of 2,6-dimethyl-4-nitrophenol are rare, and the process is complicated, labor-intensive and time-consuming, the cost will be high, and the price will also be expensive. Third, the state of competition among the same industries in the market also affects its price. If there are many operators competing for profit, it is to attract customers, or there is a price reduction; if there are few operators and they have little market share, the price may be independent and high.
Furthermore, the price varies depending on the region. In places where materials are rich and transportation is convenient, the price may be slightly flat; in remote and difficult places, the cost of transportation will increase, and the price will also rise accordingly. And the rise and fall of the market and the leniency of the decree will have an impact on the price. < Br >
If you want to know the market price of 2,6-dimethyl-4-nitrophenol, you should consult widely, observe the market conditions, study the situation of supply and demand, and the level of cost. In summary, you can get a more accurate price. However, according to today's remarks, without knowing all the details, it is difficult to determine the price.