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What is the chemical structure of 6-methylpyridine-3-carboxylate?
6-Methylpyridine-3-carboxylate, one of the organic compounds. In its chemical structure, the pyridine ring is the core part. The pyridine ring is a six-membered heterocyclic ring containing nitrogen, which is aromatic. At position 6 of the pyridine ring, there is a methyl (-CH 🥰) group, which is composed of one carbon atom and three hydrogen atoms. It is one of the alkyl groups and has certain spatial resistance and electronic effect. At position 3 of the pyridine ring, there is a carboxylate structure (-COO and corresponding cations). The carboxylate fraction, -COO is composed of carbonyl (-C = O) and oxygen anion (-O), and this structure is relatively stable due to resonance effects. Overall, the chemical structure of 6-methylpyridine-3-carboxylate presents unique physical and chemical properties due to the interaction of pyridine ring, methyl group and carboxylate. The uniqueness of its structure determines its use and reactivity in many fields such as organic synthesis, pharmaceutical chemistry, etc.
What are the main uses of 6-methylpyridine-3-carboxylate?
6-Methylpyridine-3-carboxylate has a wide range of uses. In the field of medicine, it is a key intermediate for the synthesis of a variety of drugs. Taking drugs for the treatment of cardiovascular diseases as an example, through specific chemical reactions, 6-methylpyridine-3-carboxylate can participate in the construction of drug active structures and help drugs achieve the functions of regulating blood pressure, blood lipids, etc. Due to its structural properties, it can interact with specific targets in organisms to exert therapeutic efficacy.
In the field of materials science, this compound also has important uses. Or it can be used to prepare polymer materials with special functions, such as polymers with excellent photoelectric properties. When 6-methylpyridine-3-carboxylate is integrated into the polymer structure, it can endow the material with unique electrical and optical properties, which can be used in the fields of organic Light Emitting Diode (OLED), solar cells, etc., or can improve the charge transport and luminous efficiency of the material, and improve the performance of the device.
In agricultural chemistry, 6-methylpyridine-3-carboxylate may be used as a raw material for the synthesis of pesticides. After chemical modification and transformation, the prepared pesticide may have efficient killing effect on specific pests, and is relatively friendly to the environment. Because it can precisely act on the physiological mechanism of pests, interfere with their normal growth and reproduction, and at the same time, compared with traditional pesticides, it may reduce the impact on non-target organisms and maintain ecological balance.
Furthermore, in the field of organic synthetic chemistry, 6-methylpyridine-3-carboxylate is an important building block for organic synthesis, which can participate in the construction of various complex organic molecules. With the reactivity of its functional groups, through ingeniously designed reaction paths, many organic compounds with novel structures and unique functions can be prepared, providing rich materials for the research and development of organic chemistry.
What are 6-methylpyridine-3-carboxylate synthesis methods?
The synthesis method of 6-methylpyridine-3-carboxylic acid ester has attracted much attention in the field of organic synthesis. This compound has important uses in many fields such as medicine, pesticides and material science, so it is of great significance to explore its efficient synthesis method.
One method is to use 6-methylpyridine-3-carboxylic acid as the starting material to esterify with alcohols under acid catalysis. This reaction is usually carried out under the condition of heating and reflux. The commonly used acid catalysts include sulfuric acid, p-toluenesulfonic acid, etc. For example, 6-methylpyridine-3-carboxylic acid is mixed with ethanol in an appropriate proportion, an appropriate amount of p-toluenesulfonic acid is added, and when heated in toluene solvent for a number of refluxes, the reaction is completed. After neutralization, extraction, distillation and other steps, the target product 6-methylpyridine-3-carboxylic acid ethyl ester can be obtained. This method is relatively simple to operate and the raw materials are easy to obtain. However, the control of the reaction conditions is quite critical. If the temperature is too high or the reaction time is too long, it is easy to cause side reactions to occur, which affects the purity and yield of the product.
Another method is to synthesize 6-methylpyridine-3-carboxylic acid ester by multi-step For example, a suitable pyridine derivative is methylated first, a methyl group is introduced, and then the target molecular structure is constructed through a series of reactions such as oxidation and esterification. Although this approach is a little complicated, it can modify and regulate the molecular structure more accurately, which is helpful to obtain 6-methylpyridine-3-carboxylate derivatives with specific structures and properties. For example, a pyridine derivative is first reacted with iodomethane under alkali catalysis to achieve methylation, and then the group at a specific position is converted into a carboxyl group through oxidation reaction, and finally esterified with alcohols to obtain the desired 6-methylpyridine-3-carboxylate.
In addition, the coupling reaction catalyzed by transition metals is also an effective strategy for the synthesis of such compounds. Using halogenated pyridine derivatives and reagents containing carboxyl groups or their derivatives as raw materials, the coupling reaction occurs under the action of transition metal catalysts (such as palladium, copper, etc.) to generate 6-methylpyridine-3-carboxylic acid esters. This method has relatively mild conditions and high selectivity, which can effectively avoid some side reactions in traditional methods, and has significant advantages in the synthesis of 6-methylpyridine-3-carboxylic acid esters with complex structures. For example, halogenated 6-methylpyridine and carboxylic acid ester derivatives can be reacted in appropriate solvents in the presence of palladium catalysts and ligands to obtain the target product efficiently.
In summary, there are various synthesis methods for 6-methylpyridine-3-carboxylic acid esters, each with its own advantages and disadvantages. Researchers need to consider many factors such as raw material cost, reaction conditions, product purity and yield according to actual needs, and choose the most suitable synthesis path.
What are the physical properties of 6-methylpyridine-3-carboxylate?
6-Methylpyridine-3-carboxylate is a kind of organic compound. Its physical properties are quite important and are related to the application of this compound in many fields.
First of all, its appearance, under room temperature and pressure, 6-methylpyridine-3-carboxylate is mostly white to light yellow crystalline powder. This appearance feature is easy to identify and distinguish, and its purity and quality can be preliminarily judged in experiments and industrial production.
Melting point is also a key physical property. Its melting point value is relatively fixed, about [specific melting point value]. The determination of melting point provides a strong basis for the identification of this compound. If the deviation between the melting point and the standard value is small, it indicates that the purity is high; conversely, it may contain impurities.
In terms of solubility, 6-methylpyridine-3-carboxylate has a certain solubility in organic solvents such as ethanol and acetone. In ethanol, the solubility increases with increasing temperature. In water, its solubility is relatively limited, but under specific pH conditions, the solubility will change. This solubility characteristic makes it important for separation, purification and solvent selection for chemical reactions.
The other is density, which is about [specific density value]. The determination of density is crucial for calculating the concentration of the compound in the solution and the proportion in the mixed system, and is indispensable in the process of material ratio in chemical production.
In addition, 6-methyl pyridine-3-carboxylate has certain stability. Under normal storage conditions, in a dry and cool place, it can be stored for a long time without obvious chemical changes. In case of strong acid, strong base or high temperature environment, its structure may be affected, hydrolysis or other chemical reactions may occur.
In summary, the physical properties of 6-methylpyridine-3-carboxylate, such as appearance, melting point, solubility, density and stability, play a significant role in its research, production and application, and must be well known to practitioners in related fields.
What is the price range of 6-methylpyridine-3-carboxylate in the market?
6-Methylpyridine-3-carboxylic acid ester, the price in the market is difficult to be sure. The price of the cover often changes due to many reasons, such as the quality of the quality, the amount of production, the rise and fall of the demand, and the sellers are different, and the price is also different.
If you look at its past, when there was no such thing in the market, the demand was scarce, and the price was still average. Later, due to the rise of a certain industry, there were many people who used this thing. If the production was prosperous but the production did not increase sharply, the price would rise. However, if the origin is widely available, the production capacity will gradually increase, the supply will exceed the demand, and the price may fall.
Furthermore, those who are pure in quality have high prices, and those who are miscellaneous have low Sold in Dajia, because of its huge purchase volume, the price may be reduced; sold in small merchants, the price may be high if the quantity is small.
If you want to know the exact price today, you need to visit the cities and consult the merchants, and compare its quality and price before you can get an approximate number. However, the market conditions change, it is difficult to hold this price for a long time, or it will change tomorrow due to the situation.