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What are the physical properties of tert-butyl 2-chloropyridine-4-carboxylate?
The physical properties of 2-% ethylene glycol, 4-acid, are transparent liquid with a special fragrance. Its boiling temperature is high, and the liquid under normal temperature is easy to dissolve in water and more soluble.
For this alcohol, the phase density is slightly lower than that of water, and the viscosity is medium. Its low performance makes it easy to remain on the surface. Because its molecules contain a group, it is water-based and can form water molecules, so it is easily soluble in water.
Furthermore, the solidification of 2-% ethylene glycol, 4-acid is low, and it also solidifies in low-temperature environments. This property makes it suitable for use in multiple processes and daily necessities. Its chemical properties are determined by the phase, and it can also be reversed when encountering specific components such as oxidation or high temperature.
Its solubility is high, and it can be used for good solubility and multi-solubility. It is indispensable in many fields such as materials, inks, and chemicals. Because of its high boiling speed and slow boiling speed, it can make the ingredients in the product disperse and maintain the stability, which is of great benefit to the improvement of the product. In addition, this product has an important role in many aspects such as work and life due to its physical properties.
What are the chemical synthesis methods of tert-butyl 2-chloropyridine-4-carboxylate?
There are several methods for the chemical synthesis of 2-% hydroxylamine oxime-4-phosphonic acid succinamide. The details of the methods are as follows:
First, succinic anhydride is used as the starting material. The reaction of succinic anhydride with ammonia water can obtain succinamide. Butanediamide reacts with phosphorus trichloride and alcohols under appropriate conditions. In this process, phosphorus trichloride provides a phosphorus source, and alcohols participate in the reaction to promote the introduction of phosphonic acid groups. After a series of complex chemical transformations, 2-% hydroxylamine oxime-4-phosphonic acid succinamide can be obtained. The steps of this pathway are relatively clear, but the control of the reaction conditions is quite critical. The temperature and the proportion of reactants are slightly different, or the yield is reduced.
Second, start with phosphorus-containing compounds and related precursors containing nitrogen and oxygen. After multi-step organic reactions, such as nucleophilic substitution, condensation, etc. First, the phosphorus-containing compounds are substituted with specific nucleophilic reagents to construct the basic skeleton of the phosphonic acid structure. Then introduce nitrogen-containing oxime groups and hydroxylamine groups. This process requires clever selection of reaction reagents and conditions, so that each step of the reaction proceeds smoothly in sequence, avoiding excessive side reactions, so as to efficiently synthesize the target product.
Third, use some compounds that already have some target structures as substrates, through modification and transformation. If a compound with a similar structure to phosphonic succinic acid is selected, an oximation reaction is carried out to introduce an oxime group, and then an hydroxylamine group is introduced through an appropriate reduction or amination step to obtain 2-% hydroxylamine oxime-4-phosphonic acid succinamide. This method can make use of the existing structural basis to reduce the reaction steps, but the acquisition of substrates may be difficult and needs to be weighed according to the actual situation.
All these synthesis methods have their own advantages and disadvantages. The ideal synthesis effect can be achieved by careful selection according to factors such as the availability of raw materials, the difficulty of the reaction, and the consideration of cost.
What is the main use of tert-butyl 2-chloropyridine-4-carboxylate?
What is the main use of 2-% ethyl butyric acid monoester?
Ethyl butyric acid monoester has its uses in all kinds of fields. The first is in food, and it is an important edible spice. It has a fruity aroma, and can be as fruity as fruits, bananas, etc., so it is often used in candies, ingredients, cakes and other foods to increase the fragrance of food.
In addition, it also has its own function in chemical conduct. Because of its pleasant fragrance, it can be used as a fragrance additive for chemical products and toiletries, which gives this product a pleasant taste, enhances the user's sense of taste, and makes the user's mood happy.
In addition to the workmanship, ethyl butyric acid ester is also indispensable. It is a good solubility, and has good solubility of multi-fat, oil, ink and other substances. In the manufacture of ink, its viscosity can be determined, so that the material and ink are more uniform, and the drying rate is appropriate, so as to improve the quality of the product.
The field is also affected. It can be used in the synthesis of some compounds, and the synthesis of the compounds can be reversed. It is important to help the active ingredients of the compounds.
In addition, in the study of some flavor formulations, ethyl butyric acid ester is also a commonly used base fragrance component, which can be matched and matched with other fragrances to create a variety of unique and attractive fragrances.
What are the precautions for tert-butyl 2-chloropyridine-4-carboxylate in storage and transportation?
Towards the 2%, tributyl 4-borate is stored and stored in the environment, and there are many things to pay attention to.
The first environment is the storage environment. It is appropriate to use high-quality, transparent rooms, which can avoid high temperature, avoid high temperature and high sensitivity. And the temperature of the room is properly controlled, because if the temperature is not low, or it can lead to deliquescence, etc., it will affect the product of tributyl 4-borate. In addition, the storage of oxidation, acid and other substances is divided, so that the property of this substance is not active, and tributyl 4-borate is mixed, or it can cause strong reaction and become dangerous. At the same time, there are no suitable materials to contain leaks to prevent accidental leakage, which can be quickly and effectively treated and reduce harm.
When it is too late, there is also a need for emergency treatment.
Therefore, if there is no storage or tributyl 4-borate, it is necessary to comply with the requirements and pay attention to the requirements in order to ensure its safety and quality.
What is the market price range for tert-butyl 2-chloropyridine-4-carboxylate?
Today, there are 20% of the market for 40% butyl acetate.
The price of 20% of the product is determined by factors such as product quality, supply and demand, and location. If the product is of high quality and the place where supply and demand are low, the price per catty is 20% or 10%. However, if the product is high and the supply is low, the price per catty is 50% or 56%. Generally speaking, the price per catty is between 5% and 15%.
To 40% butyl acetate, this is a commonly used product in industry, and its price is also subject to various systems. Its production cost and the transformation of market demand all affect its price. The cost of production is high, and the market demand is strong, so the price per catty may be around 30%; if the cost is reduced, the demand will also be low, and the price per catty may drop to about 20%. Under normal circumstances, the market price per catty is between 20% and 30%.
Therefore, 20% of the price per catty is about 5% to 15%, and 40% of butyl acetate is 20% to 30% per catty. However, the market is instantaneous. However, this estimate still depends on the situation.
