2-(2-thienyl)pyridine

In "Tiangong Kaiwu", the main use of 2- (2-cyanyl) is that it can be used as an important synthetic agent. Cyanyl compounds play a role in the synthesis of polymers.
It can be additive and inverse, such as alkenyl, alkynyl and other chemical additives, which can effectively introduce nitrogen-containing functionalities and change the properties of molecules.
In terms of substitution and inverse, cyanyl groups can be used as nuclei to replace atoms in compounds such as hydrogen to form new carbon-nitrogen compounds. This inverse is widely used in the synthesis of refined chemical products such as hydrogen and hydrogen.
Furthermore, the cyanide group can be hydrolyzed to form a carboxyl group, and an amino group can be obtained, which makes it especially important in the synthesis of compounds containing carboxyl groups and amino groups. In the field of research, the construction of polymers requires the reaction of cyanide compounds to provide specific biological activities and substitution properties. In the material science, cyanide compounds can also be used to synthesize polymer materials with special properties, and to improve the quality and stability of the materials. Therefore, 2 - (2-cyano) has important uses in various fields such as synthesis, chemical engineering, etc.

(What are the physical properties of di- (2-imidazolyl) pyridine?)
(2- (2-imidazolyl) pyridine, this is an organic compound. Its physical properties are numerous and of key significance in many fields.)
Bearing the brunt, looking at its appearance, under normal conditions, 2- (2-imidazolyl) pyridine is mostly white to light yellow crystalline powder, with fine texture and fine particles that can be identified. This form is easy to store and use, and is easy to accurately measure and handle in many chemical operations and experimental processes.
Furthermore, when it comes to the melting point, the melting point of the compound is roughly between 135 ° C and 138 ° C. As an important physical constant of substances, the melting point is not only of great significance for the identification of its purity, but also in practical applications, such as in the temperature control link of the synthesis process, the melting point data can provide a key reference for the precise setting of reaction conditions to ensure the smooth progress of the reaction within a suitable temperature range.
Solubility is also one of its important physical properties. 2 - (2-imidazolyl) pyridine exhibits good solubility in common organic solvents such as methanol, ethanol, dichloromethane, etc. This property makes it an effective ligand in the field of organic synthesis, which can coordinate reactions with various metal ions and is widely used in catalytic reaction systems. In the field of pharmaceutical chemistry research, good solubility helps to improve the bioavailability of drugs and promote the absorption and distribution of drugs in vivo.
In addition, 2- (2-imidazolyl) pyridine has certain stability. Under conventional storage conditions, it can be stored in a dry and cool place for a long time without significant chemical changes. However, it should be noted that although its stability is acceptable, it should not be exposed to high temperature, high humidity or strong oxidant environments to prevent unexpected chemical reactions from occurring, causing its chemical structure to be damaged and its physical properties to change.
Overall, these physical properties of 2- (2-imidazolyl) pyridine have laid a solid foundation for its wide application in organic synthesis, drug development, materials science and many other fields.

(How about the chemical properties of 2 - (2 - imidazolyl) pyridine?)
2 - (2 - imidazolyl) pyridine, which is a characteristic compound. In this compound, the pyridine imidazolyl phase is good, and the two are good for its general properties.
As far as acidity is concerned, because imidazolyl pyridine contains nitrogen atoms, and the nitrogen atoms have no shared molecules, it is of a certain nature. In the appropriate acidic environment, the nitrogen atom accepts molecules and forms a phase.
In terms of reaction activity, its aroma makes the compound aromatic, which is a typical reaction of many aromatic compounds. For example, it can be substituted inversely, because the sub-cloud of pyridine imidazolyl is very specific, and it is easy to attack a specific location. And it causes the sub-cloud density of the molecule to be uneven, and the sub-cloud density at some positions is high, resulting in the active site of the substitution.
In addition, 2- (2-imidazolyl) pyridine can still be used as a ligand. This complex exhibits many special properties in catalysis, materials science, and other fields.
In chemical synthesis, this compound can be used as a medium, functionally modified by chemical modification, imidazolyl or pyridyl, and then synthesized into a series of chemical compounds with specific functions. Its chemical properties are rich and diverse, and it plays an important role in the field of chemical diversity. It is interesting for researchers of chemical diversity, and the research of chemical diversity will not be further expanded.

There are many ways to synthesize 2- (2-hydroxyethyl) compounds.
First, it can be obtained by reacting ethylene oxide with ethanol. Ethylene oxide is a highly reactive ternary ring compound. The oxygen atom of the hydroxyl group in ethanol is nucleophilic and can attack the carbon atom of ethylene oxide, causing the ring to open to form 2- (2-hydroxyethyl) products. The reaction conditions are mild and can proceed smoothly under appropriate temperatures and catalysts. If the boron trifluoride ethyl ether complex is used as the catalyst and reacts at 50-60 ° C, the yield is quite impressive.
Second, 2-chloroethanol and sodium ethanol are used as raw materials. The chlorine atom of 2-chloroethanol is vulnerable to attack by nucleophiles. The oxygen atom of ethoxy in sodium ethanol has strong nucleophilicity and can replace the chlorine atom of 2-chloroethanol to form the target product. This reaction needs to be carried out in an anhydrous environment to prevent the hydrolysis of sodium ethanol and affect the reaction process. Generally, in an anhydrous ethanol solvent, heat and reflux for several hours to obtain the product.
Third, the condensation reaction of aldehyde compounds and ethylene glycol can be used. For example, acetaldehyde and ethylene glycol, under the action of acidic catalysts such as p-toluenesulfonic acid, first form a semi-acetal intermediate, and then dehydrate to form a cyclic acetal. Subsequent steps such as hydrolysis can obtain 2- (2-hydroxyethyl) compounds. The steps of this method are slightly complicated, but the raw materials are easy to obtain, and the reaction conditions of each step are relatively easy to control.
Fourth, ethyl acrylate is used as the starting material, first reduced to 3-hydroxypropanol by reducing agents such as lithium aluminum hydride, and then reacted with ethylene oxide to obtain the target product. When reducing ethyl acrylate with lithium aluminum hydride, the reaction conditions need to be strictly controlled, because it has strong reductivity and reacts violently in contact with water. Subsequent reactions with ethylene oxide also need to pay attention to factors such as temperature and catalyst.

There is a question today, what is the range of the price of (2 - (2 - imidazolyl)) in the market? Those who cover "Tiangong Kaiwu" detail the production system and price of various things, but they do not detail this thing. Although it is not included, it can also be deduced from other things according to common sense.
Looking at "Tiangong Kaiwu", its price of various things often involves factors such as origin, quality, supply and demand. (2 - (2 - imidazolyl)) is a chemical thing. When "Tiangong Kaiwu" was written, the science of chemistry was not as prosperous as it is today, and it was difficult to determine the price. However, according to common sense, the price of chemicals is first related to the difficulty of making. If the technology is complex and the materials used are expensive, the price will be high; if the technology is simple and the materials are common, the price will be flat.
In addition, the supply and demand of the city is also the main reason. If there are many people in need of this product, and there are few suppliers, the price will rise; if the supply exceeds the demand, the price may fall. And the distance of the place of origin also has an impact. If it is near the city, the freight will be saved, and the price may be better; if it is far away, the opposite is true.
At present, with the advance of science and technology, and the refinement of chemical technology, the preparation of (2 - (2 - imidazolyl)) is easier. If the supply is sufficient, the price should not be too high. However, if its use is wide and the need is urgent, the price is In the context of "Tiangong Kaiwu", it is difficult to determine the range of its price; at present, it is also difficult to determine its exact value due to the interweaving of many factors. It can only be determined according to the conditions of production, supply and demand, and origin.