5-amino-4-cyano-3-(2-B-cyano-2-carboxymethyl)-2-thiophene Ethyl

Alas! This is the question of organic chemicals. To understand their chemical structure, it is necessary to analyze their names in detail. "5-Amino-4-cyano-3- (2 - β - cyano-2-carboxymethyl) - 2-thiophene, ethyl ester", I will analyze it according to this name.
Looking at its name, "thiophene" is the parent nucleus, which is a sulfur-containing five-membered heterocyclic compound. In the second position of the thiophene ring, there is an ethyl ester group, which is obtained from ethanol and an acid ester. The 3-position " (2 - β - cyano-2-carboxymethyl) " can be inferred to be a substituent, in which a carbon atom is connected with a cyano group and a carboxymethyl group, and this carbon is connected to a thiophene ring. The 4-position is cyano, and the 5-position is amino.
From this point of view, its chemical structure is centered on a thiophene ring, which is connected to specific groups at different positions on the ring. Ethyl ester group, cyano group, amino group and substituents containing cyanide group and carboxymethyl group, each in its own position, together constitute the structure of this complex organic compound. In this way, the chemical structure of the substance can be roughly understood.

5-Amino-4-cyano-3- (2 - β - cyano-2-carboxymethyl) - 2-thiophene, ethyl ester This substance has a wide range of uses. In the field of medicine, it is often the key intermediate for the synthesis of specific drugs. Due to its unique structure, it can participate in many complex chemical reactions, help create drugs with special curative effects, or cure intractable diseases, adding a sharp tool for doctors to cure diseases and save people.
In the field of materials science, it also has extraordinary performance. With its own chemical properties, it can be integrated into the preparation process of new materials through specific processes. Through this, materials may be endowed with unique properties, such as improving their stability and enhancing their reactivity, which in turn paves the way for the birth of various new materials.
In terms of scientific research and exploration, it is also an important research object. Through in-depth research on it, researchers can gain insight into the relevant chemical reaction mechanisms and clarify the mysteries of interactions between substances. This not only helps to expand and deepen theoretical knowledge, but also lays a solid foundation for subsequent innovative applications, leading scientific research to move forward in this field and open up more unknown possibilities.

To prepare 5-amino-4-cyano-3- (2 - β - cyano-2-carboxymethyl) - 2-thiophene ethyl ester, the synthesis method needs to follow a delicate chemical route.
First, prepare all kinds of raw materials. The required materials, such as the initial materials containing thiophene structure, should be carefully selected to ensure that their purity is excellent and there are few impurities. Accompanied by this, the reagents introduced by the cyano group must also be carefully selected, so that they are related to the precise access of the cyano group. The raw materials for carboxymethylation are also indispensable, and the quality has a huge impact on the success or failure of the synthesis. < Br >
Then, proceed with the reaction steps. First, under suitable conditions, make the thiophene parent meet the cyanide-containing reagent. In this step, the choice of reaction temperature, time, and solvent is all key. If the temperature is too high, side reactions will multiply; if it is too low, the reaction will be slow and difficult to achieve expectations. Choose a mild solvent to facilitate the smooth progress of the reaction. After the cyanyl group is ingeniously connected to the thiophene ring, the key intermediate is obtained.
Then, carboxymethyl is introduced. In this process, the use of catalysts, precise control of the dosage, and moderate catalysis can enable the carboxymethyl to be successfully connected to the predetermined position. The acidity and alkalinity of the reaction environment also need to be carefully regulated. Both acid and base can cause reaction errors. < Br >
After the carboxymethyl group is successfully introduced, the esterification step is carried out. Ethanol and the obtained intermediate are used for esterification with the help of the catalyst. The temperature and pressure are carefully adjusted to form the ethyl ester structure accurately.
After the reaction is completed, the separation and purification of the product should not be ignored. After distillation, extraction and recrystallization, impurities are removed and purity is improved, and the pure 5-amino-4-cyano-3 - (2 - β - cyano-2-carboxymethyl) -2-thiophene ethyl ester is finally obtained. This method of synthesis is connected step by step and interlinked, requiring chemists to perform it with exquisite skills and a rigorous attitude in order to obtain the ideal product.

5-Amino-4-cyano-3- (2 - β - cyano-2-carboxymethyl) - 2-thiophene ethyl ester, the physical and chemical properties of this substance are as follows:
Looking at its morphology, it may be a solid under normal conditions. Because its molecular structure contains a variety of polar groups, the intermolecular force is strong, which prompts it to tend to exist in a solid state. Its color may be nearly colorless to yellowish. Such organic compounds often show this color range due to some conjugated systems and chromophores in their structures.
As for the melting point, it is inferred from its structure that it is in a certain temperature range. Intramolecular cyano, carboxyl and other polar groups form hydrogen bonds and other intermolecular forces, causing molecules to be closely arranged, requiring high energy to destroy the lattice and melt it, so the melting point may be relatively high.
In terms of solubility, the solubility in water is not good. Although the molecule contains carboxyl groups that can form hydrogen bonds with water, the overall structure is not highly hydrophilic, and the hydrophobic parts such as long carbon chains and thiophene rings have a great influence. In organic solvents, such as polar organic solvents such as ethanol and acetone, the solubility may be relatively good. Because these solvents can interact with the compound through van der Waals forces, hydrogen bonds, etc., to help it disperse and dissolve.
In terms of chemical stability, the cyanyl group in the molecule is relatively active and can participate in a variety of chemical reactions, such as hydrolysis reaction. Under acidic or basic conditions, the cyanyl group can be gradually converted into a carboxyl group or an amide group. The thiophene ring also has certain reactivity, and can undergo electrophilic substitution reaction under specific conditions. Because the thiophene ring is an electron-rich aromatic ring, it is vulnerable to electrophilic attack.
And because it contains multiple reactive groups, it can be used as a key intermediate in the field of organic synthesis. It can construct complex organic molecular structures through various reactions, showing unique chemical value.

I have not obtained the exact price of "5+-+amino+-+4+-+cyano+-+3+-+%282+-+B+-+cyano+-+2+-+carboxymethyl%29-2+-+thiophene Ethyl" in the market. The price of this compound may vary depending on the application, purity, supply and demand conditions, etc.
If you want to know the price, you can go to the chemical product trading platform to check the quotations of various suppliers, or consult the distributors of chemical raw materials, who can give a more accurate price according to the current situation. Or look at academic literature, industry reports, or have clues about the relevant price. However, the market is volatile, and the price changes frequently. The actual price depends on the current market conditions.