6-Chloro-3-formyl-5-methylpyridine

6-Deuterium-3-methylbenzyl-5-methylpyridine, this substance has not been recognized and applied in the modern chemical sense in the era covered by Tiangong Kaiwu. However, it is deduced from the ancient meaning, although the details are unknown, if it is occasionally obtained in traditional techniques such as alchemy and pharmacy, it may be useful.
The ancient alchemist tried his best to refine the elixir of longevity. He tried all kinds of strange substances among gold stones and plants, and all kinds of strange substances were taken into account. If this 6-deuterium-3-methylbenzyl-5-methylpyridine exists in ores or extracts of plants and trees, it may be able to affect the fineness, texture and efficacy of the medicinal pill due to its special chemical properties during alchemy. Or make the color of the medicinal pill more different, or make its stability change, which is regarded as a wonderful thing by alchemists. Although the exact chemical structure of the medicine is not known, its characteristics are recorded in the pill prescription and regarded as a secret recipe.
In traditional medicine, doctors use natural medicinal materials to make a cure. If there are occasional herbs containing this substance in the place where the medicine is collected, it may produce different curative effects after being used in the medicine. Or enhance the medicinal power, or ease the medicinal properties, so that the original prescription takes on a new appearance. Doctors perceive its effects in clinical practice, record it, and pass it on to future generations, or form a unique medication experience.
Although there is no exact ancient book on its function, in the exploration of many ancient mysterious techniques and practices, such substances may be like hidden clues, leaving vague and fascinating traces between traditional wisdom and unknown chemical fields.

To prepare 6-bromo-3-methylbenzyl-5-methylpyridine, the following ancient methods can be used.
First, the corresponding pyridine derivative is used as the starting point. The methyl group is introduced before the appropriate check point of the pyridine ring, and the nucleophilic substitution reaction can be used. The halogenated methane is selected to react with the pyridine under the catalysis of the base. The base such as potassium carbonate is heated in a suitable organic solvent (such as N, N-dimethylformamide) to promote the methyl substituted halogen atom to connect to the pyridine ring.
Then the benzyl group is introduced, which can make the benzyl halogen containing the suitable substituent react with the pyrid The halogen atom on the benzyl halide is active, and the pyridine nitrogen is nucleophilic. The two bond under suitable conditions. For example, in the presence of a phase transfer catalyst (such as tetrabutylammonium bromide), it reacts in a mixed system of water and an organic solvent. The organic solvent can choose dichloromethane, and the temperature is controlled to allow the benzyl group to successfully connect to the pyridine ring.
Finally, a bromine atom is introduced, and the bromide reaction is carried out at a suitable position of the pyridine derivative. If the active check point such as the methyl ortho-position on the pyridine ring is selected, the reaction of liquid bromine can be catalyzed by Lewis acid (such as iron tribromide The reaction is carried out at a low temperature and in an anhydrous environment. Lewis acid promotes the polarization of bromine molecules, enhances the electrophilicity of bromine atoms, and facilitates the replacement of hydrogen atoms by bromine atoms to obtain the target product 6-bromo-3-methylbenzyl-5-methylpyridine.
Second, another approach can be taken to construct a pyridine ring skeleton. For example, a suitable nitrogen-containing compound and a polycarbonyl compound are condensed to form a pyridine ring parent.
After the pyridine ring is formed, methyl, benzyl and bromine atoms are gradually introduced. Methyl can be introduced with the above nucleophilic substitution method; benzyl is introduced, as described above with benzyl halide reaction; bromine atoms are introduced, with a brominating agent such as N - bromosuccinimide (NBS) in the initiator (e.g. benzoyl peroxide) in the presence of light or heat to initiate a free radical reaction, the bromine atoms into the pyridine ring suitable check point, through a series of steps, synthesizing 6 - bromo - 3 - methylbenzyl - 5 - methylpyridine.

6-Deuterium-3-methylbenzyl-5-methylpyridine is a specific substance in the field of organic compounds. This substance has unique physical properties, which are described as follows:
- ** State and color **: Under normal conditions, it is mostly liquid. When pure, it may be colorless and transparent. However, due to differences in impurities or preparation conditions, it may have a slight color. Looking at its form, it has good fluidity and is similar to common organic solvents.
- ** Melting point and boiling point **: The melting point is very low, and it exists in a liquid state at room temperature. The boiling point varies depending on the specific structure and intermolecular forces, and is roughly within a certain temperature range. Because it contains special atoms and groups, the intermolecular forces are different, and the boiling point may be different from that of common hydrocarbons.
- ** Density **: The density may be different from that of water, depending on its molecular composition and relative molecular mass. Or less than water, floating on the upper layer of water; or greater than water, sinking on the bottom of water. This property is of great significance in separation and identification.
- ** Solubility **: In organic solvents, such as ethanol, ether, and chloroform, the solubility is quite good. Due to the principle of "similar miscibility", its organic structure can form a certain interaction with organic solvent molecules. In water, the solubility may be limited. Due to the influence of hydrophobic groups, the force between water molecules and the compound molecules is weak. < Br > - ** Odor **: or has a special smell, but due to the complex structure, the smell is difficult to describe exactly, or has an irritating smell, or has an aromatic smell, which is related to the functional groups contained.
- ** Volatility **: According to the intermolecular force and boiling point, it has a certain volatility. In an open environment, it will gradually evaporate into the air, and the volatilization rate is related to factors such as temperature, surface area, and air circulation. When the temperature is high, the surface area is large, and the air circulation is fast, the volatilization accelerates.

6-Chloro-3-methylbenzyl-5-methylpyridine is an organic compound with many unique chemical properties, which is of great significance in the field of organic synthesis and chemistry research.
This compound contains specific functional groups such as chlorine atoms, methyl groups and benzyl groups. Chlorine atoms have high electronegativity, which can cause molecular polarity changes, which in turn affect their physical and chemical properties. Due to its electronegativity, chlorine atoms are prone to participate in nucleophilic substitution reactions. Under suitable conditions, halogen atoms can be replaced by nucleophilic reagents, providing the possibility to construct new carbon-heteroatomic bonds, thereby synthesizing organic molecules with more complex structures. The methyl group in the
molecule is the power supply group, which can affect the distribution of molecular electron clouds by superconjugation effect and induction effect. The electron cloud density of the connected carbon atoms will increase by the characteristics of the power supply, which will enhance the nucleophilicity of the position, and affect the reactivity and selectivity to a certain extent. For example, in the electrophilic substitution reaction, the methyl group can increase the electron cloud density at specific positions on the benzene ring or the pyridine ring, which prompts the electrophilic reagents to preferentially attack these positions.
The benzyl structure has special stability and reactivity. The benzene ring in the benzyl group is connected to the methylene group, and the large π bond system of the benzene ring can On the one hand, this conjugation can stabilize the benzyl carbon positive ion intermediate, making the reaction at the benzyl position easier to carry out; on the other hand, benzyl can participate in a variety of reactions, such as benzylation reaction, introducing benzyl into other organic molecules to achieve molecular structure modification and functionalization.
As a nitrogen-containing heterocycle, the pyridine ring is basic and aromatic. Its basicity originates from the lone pair of electrons on the nitrogen atom, which can undergo protonation reaction with the acid to generate pyridine salts. The aromaticity of the pyridine ring gives it special stability and electron cloud distribution, and shows unique chemical behavior in the reaction. The pyridine ring can undergo electrophilic substitution reaction, but the reactivity is different from that of the benzene ring due to the electron-withdrawing action of the nitrogen atom. The substitution reaction usually occurs at the position where the electron cloud density of the pyridine ring is relatively high.
6-chloro-3-methylbenzyl-5-methylpyridine interacts with various functional groups and exhibits rich chemical reactivity. It can be used as a key intermediate in the field of organic synthesis for the preparation of various functional organic compounds such as medicines, pesticides, and materials.

I look at what you said about "6-alkane-3-methyl-5-methylpentyl", which is the name of an organic compound. However, it is not easy to know its price in the market. The price of organic compounds is often influenced by many factors.
First, the availability and cost of raw materials. If the raw materials required to synthesize this compound are scarce and expensive, the price of the finished product must be high. For example, if the preparation of this "6-alkane-3-methyl-5-methylpentyl" requires rare minerals or special plant extracts as starting materials, and it is not easy to obtain, the cost will increase greatly, which will affect the market price.
Second, the difficulty of preparation. If the synthesis steps are complicated, special reaction conditions, expensive catalysts or time-consuming will also increase the cost. If some organic synthesis reactions need to be carried out under harsh conditions such as high temperature, high pressure, and inert gas protection, or if they need to go through multiple steps and the yield of each step is not high, the production cost will increase and the market price will rise accordingly. < Br >
Third, market demand and supply. If this compound has extensive and urgent demand in the fields of medicine, materials, etc., and the supply is relatively insufficient, the price is often higher. On the contrary, if there is little demand, the manufacturer may reduce the price in order to sell.
Fourth, the requirement of purity. If it is used in high-end scientific research, pharmaceutical production and other fields that require extremely high purity, the purification cost will increase greatly, and the price will be much higher than that of ordinary purity products.
However, I do not know the specific use, market supply and demand of this "6-alkane-3-methyl-5-methylpentyl" in detail, so it is difficult to determine its market price. For more information, you may consult the chemical product trading platform and relevant chemical raw material suppliers, who may be able to inform you of relatively accurate prices based on current market conditions.