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What are the main uses of 2-Chloro-6-ethoxypyridine?
2-Chloro-6-ethoxypyridine is also an organic compound. It has a wide range of uses and is often a key raw material for the creation of new drugs in the field of medicinal chemistry. Because of its unique molecular structure, with specific reactivity and chemical properties, it can undergo a variety of chemical reactions and combine with other compounds to construct a complex molecular structure with biological activity, laying the foundation for drug research and development.
In pesticide chemistry, it also occupies an important position. It can be used as an intermediate for the synthesis of new pesticides. By chemical modification, compounds with high insecticidal, bactericidal or herbicidal properties can be derived. Such pesticides are often highly selective and environmentally friendly, which can effectively protect crops and have little adverse impact on the ecological environment.
Furthermore, in the field of materials science, 2-chloro-6-ethoxypyridine has also emerged. It can participate in the synthesis of special polymer materials, giving materials such as unique electrical, optical or mechanical properties. Through its introduction, it may improve the stability, solubility and processing properties of materials, and open up new fields of material applications.
In addition, in organic synthesis chemistry, it is an important building block for the construction of complex pyridine derivatives. Chemists can precisely synthesize various types of pyridine compounds with specific functions and structures by ingenious reaction design, using them as starting materials, through halogenation, substitution, coupling and many other reactions, enriching the variety of organic compounds and injecting vitality into the development of organic synthetic chemistry.
What are the physical properties of 2-Chloro-6-ethoxypyridine?
2-Chloro-6-ethoxypyridine is an organic compound. It has unique physical properties and is listed below.
Looking at its properties, it is mostly colorless to light yellow liquid under normal conditions, with a clear appearance. If placed under specific lighting conditions, there may be slight color changes. The melting point of this substance is about -20 ° C, which is determined by the force of interaction between atoms in its molecular structure. In a low temperature environment, the molecular motion of the substance slows down and it takes on a solid phase.
In terms of boiling point, it is about 210-220 ° C. When heated to this temperature range, the molecule is energized enough to overcome the attractive force between molecules and changes from liquid to gaseous state. The density of this compound is approximately 1.15-1.20 g/cm ³, which is slightly heavier than that of water. This is due to the type of atoms in the molecule and the degree of close arrangement.
Solubility is also an important physical property. 2-Chloro-6-ethoxypyridine is soluble in a variety of organic solvents, such as ethanol, ether, dichloromethane, etc. This is due to the principle of "similarity and miscibility". Its molecular structure is similar to the intermolecular force of organic solvents, so it is miscible. However, the solubility in water is very small, and it is difficult for the two to form a stable interaction due to the large difference between molecular polarity and water molecular polarity.
Its vapor pressure is relatively low, and the volatilization rate is slow at room temperature and pressure. This property is related to the strength of the intermolecular force. The weaker intermolecular force causes higher vapor pressure and faster volatilization rate, while the intermolecular force of 2-chloro-6-ethoxypyridine is moderate, and the vapor pressure is low.
In addition, the refractive index is also one of the parameters characterizing its physical properties, about 1.52-1.54. When light passes through the substance, the direction of light propagation is changed due to the influence of the internal structure of the substance on light propagation. Refractive index is a physical quantity that quantitatively describes this phenomenon and is closely related to the molecular structure and arrangement of the substance.
What is the chemistry of 2-Chloro-6-ethoxypyridine?
2-Chloro-6-ethoxypyridine is a kind of organic compound. Its physical and chemical properties are unique, and it is widely used in the field of organic synthesis.
Let's talk about its physical properties first. Under normal conditions, this substance is mostly colorless to light yellow liquid with unique odor, but the specific description of its odor in relevant literature may vary. Parameters such as its boiling point and melting point are crucial to determine the purity and stability of this substance. The boiling point usually varies according to specific measurement conditions, and is mostly within a specific temperature range. The determination of melting point also requires fine operation to obtain accurate values, both of which are important indicators for characterizing the physical properties of this substance.
As for chemical properties, the pyridine ring of 2-chloro-6-ethoxy pyridine has aromatic properties, which endows it with a specific electron cloud distribution, which in turn affects its chemical reactivity. The presence of chlorine atoms and ethoxy groups adds various variables to the chemical behavior of the molecule.
Chlorine atoms have certain nucleophilic substitution activities. When suitable nucleophilic reagents are used, nucleophilic substitution reactions can occur. The nucleophilic reagent attacks the carbon atom connected to the chlorine atom, and the chlorine atom leaves to form a new organic compound. This reaction condition varies depending on the activity of the nucleophilic reagent and the structure of the substrate, or requires auxiliary conditions such as heating and catalysts.
The oxygen atom in the ethoxy group has a lone pair of electrons and can participate in various chemical reactions. Under certain acidic conditions, the ethoxy group may undergo protonation, which affects the electron cloud distribution of the molecule and changes its reactivity. At the same time, the nitrogen atom on the pyridine ring can be used as an electron pair donor to form a coordination compound with metal ions, etc. This property may have applications in catalytic reactions and other fields.
In organic synthesis, 2-chloro-6-ethoxy pyridine is often an important intermediate. By chemical modification of chlorine atoms and ethoxy groups, a variety of complex organic molecular structures can be constructed, providing key raw materials for drug synthesis, materials science and other fields.
In summary, the physical and chemical properties of 2-chloro-6-ethoxypyridine are interrelated, which determines its application potential in organic synthesis and related fields. In-depth study of it will help to expand the boundaries of organic chemistry and develop more novel compounds and materials.
What are 2-Chloro-6-ethoxypyridine synthesis methods?
The synthesis method of 2-chloro-6-ethoxypyridine has been known for a long time. There are many methods, and each has its own subtlety.
One of them can be obtained by reacting 2,6-dichloropyridine with sodium ethanol. This reaction needs to be carried out in a suitable reaction vessel at a specific temperature and time. First, 2,6-dichloropyridine is placed in a reactor, and the solution of sodium ethanol is slowly added. This process needs to pay close attention to the reaction temperature and maintain it within a certain range. It should not be too high or too low. If it is too high, the side reactions will increase, and if it is too low, the reaction rate will be slow. During the reaction, stirring is also crucial, and uniform stirring can make the reactants fully contact and accelerate the reaction process. After the reaction is completed, 2-chloro-6-ethoxypyridine can be obtained through a series of post-processing steps, such as extraction, distillation, etc.
Second, 6-hydroxy-2-chloropyridine is used as the starting material and reacts with haloethane under alkaline conditions. First, 6-hydroxy-2-chloropyridine and an appropriate amount of base, such as potassium carbonate, are put into the reaction system, and then haloethane is added. The alkalinity of the reaction environment has a great influence on the reaction, and either too strong or too weak alkalinity is not conducive to the formation of products. The reaction process needs to be carried out under heating conditions, and the reaction time should be controlled and the reaction process should be monitored in a timely manner. After the reaction is completed, the target product can also be obtained by separation and purification.
Third, it can also be achieved by the construction and subsequent modification of the pyridine ring. The pyridine ring is first constructed, and then the chlorine atom and ethoxy group are introduced at a suitable check point. This approach is slightly complicated, but if each step can be carefully controlled, it is also a good method for synthesizing 2-chloro-6-ethoxy pyridine. When constructing the pyridine ring, the appropriate reactants and reaction conditions should be selected according to the relevant reaction mechanism. When introducing chlorine atoms and ethoxy groups, the principles of organic synthesis should also be followed to ensure the selectivity and yield of the reaction.
What is the price range of 2-Chloro-6-ethoxypyridine in the market?
2-Chloro-6-ethoxypyridine is in the market, and its price range is difficult to determine. The price of this compound often changes due to multiple reasons.
First, the amount of quantity has a great impact on the price. If the buyer wants a lot, the merchant may give a discount for profit, and the price will be slightly reduced; if only a small amount is needed for research and testing, the price may be high.
Second, the quality is also related to the price. Those with good quality, after strict production and purification processes, contain less impurities, have good performance, and have high price; those with poor quality, have more impurities, and the price is low. < Br >
Third, the supply and demand of the city is the main reason for the price. If the city seeks prosperity for this product, but the supply is limited, the price must rise; if the supply exceeds the demand, the merchant will sell its goods, and the price will drop.
Fourth, the cost also affects the price. The price of raw materials, energy consumption, manpower, etc., are all cost-effective. Raw materials are expensive, energy consumption is high, and labor costs are huge. If the cost increases, the price will also be high; on the contrary, if the cost decreases, the price may decrease.
Looking at the past examples of chemical transactions, the price of 2-chloro-6-ethoxypyridine varies from a few yuan per gram or a few yuan to tens of yuan. However, this is only an approximation, and market conditions are ever-changing. If you want to know the exact price, you should consult the supplier of chemical raw materials and scrutinize their quotations in detail before you can obtain it.