(3-Methylpyridine-2-yl)methanol

(3-Methylpentane-2-yl) methyl ether, although this substance is not explicitly mentioned in "Tiangongkai", its main use can be deduced according to ancient chemical application and process wisdom.
In ancient times, although there was no modern chemical cognition and analysis method as accurate as modern, it may be used in various processes for substances with similar structures and properties. As far as organic compounds are concerned, the common properties of ether substances have certain solubility and volatility.
In ancient printing and dyeing processes, it may be used as a solvent. In ancient printing and dyeing, the pigments needed to be evenly dispersed on the fabric. If (3-methylpentane-2-yl) methyl ether was present in the substances available at that time, it could be used to dissolve the pigments that were not easily soluble in water because of its good solubility, so that the pigments could better adhere to the fabric fibers, improve the printing and dyeing effect, make the colors more vivid and uniform, and help the pigments to be more firmly fixed on the fabric, not easy to fade.
Furthermore, it may be useful in ancient fragrance mixing. Fragrances are mostly composed of a variety of ingredients. The volatility of the substance may help the fragrance to emit a unique aroma, and its relatively stable chemical properties may be used as a carrier of fragrance components, making the fragrance last longer.
In addition, in some ancient artisanal manufacturing industries, such as tanning and other industries, it can be used as a solvent for some treatment agents. Leather processing requires removal of impurities, softening and adding protection. The solubility of (3-methylpentane-2-yl) methyl ether may help to prepare a suitable treatment solution to improve leather quality and durability.

(3-Methylpentyl-2-yl) methyl ether, this is an organic compound. Its physical properties are as follows:
Looking at its properties, under room temperature and pressure, (3-methylpentyl-2-yl) methyl ether is mostly colorless and transparent liquid, with a pure texture and no obvious impurities visible.
Smell its smell, emitting a special ether odor, although not pungent, it is unique and highly recognizable. < Br >
Measure its boiling point. Under certain conditions, its boiling point value is within a certain range. This characteristic allows it to be effectively separated from the mixture by distillation according to the difference in boiling point when separating and purifying.
Measure its density. Compared with water, its density is slightly smaller. If mixed with water, it will float above the water, showing a clear stratification phenomenon.
In terms of its solubility, (3-methylpentyl-2-yl) methyl ether exhibits good solubility in organic solvents, such as ethanol, ether, etc., and can be miscible with these organic solvents in a certain proportion; however, its solubility in water is very small, mainly due to the characteristics of its molecular structure, which makes it difficult to form an effective interaction with water molecules.
From the perspective of its volatility, it has a certain degree of volatility. In an open environment, it will gradually evaporate into the air. When using and storing, it is necessary to pay attention to sealing to prevent volatilization loss and possible safety problems.

(3-Methylpentane-2-yl) methyl ether, this is an organic compound. Its chemical properties are as follows:
First, it has the general properties of ether compounds. When exposed to strong acids, a protonation reaction occurs. For example, under the action of concentrated sulfuric acid, the oxygen atoms in the ether bond will accept protons and form a salt. This salt is unstable, and if conditions are suitable, the ether bond will break.
Second, it is flammable. When mixed with air, the substance can form an explosive mixture. In case of open flame and high heat, it can cause combustion and explosion. When burned, products such as carbon dioxide and water are formed, and the reaction is violent and accompanied by a large amount of heat release.
Third, in the nucleophilic substitution reaction, if there is a suitable leaving group in the molecule and the reaction environment is suitable, nucleophilic substitution may occur. For example, when there is a nucleophilic reagent, the nucleophilic reagent may attack the carbon atom connected to the oxygen atom, causing the ether bond to break and form a new compound.
Fourth, under certain conditions, an oxidation reaction can occur. However, compared with some functional groups that are easily oxidized, the ether bond in this compound is relatively stable. However, under the action of strong oxidants, some carbon-hydrogen bonds or carbon-carbon bonds in the molecule may be oxidized, thereby changing the molecular structure and properties.
Overall, (3-methylpentane-2-yl) methyl ether, as an organic ether compound, has the common chemical properties of ethers, and has specific applications in organic synthesis and chemical production. It is necessary to pay full attention to its chemical characteristics when using it to ensure the safety of operation and the smooth progress of the reaction.

To prepare (3-methylpyridine-2-yl) formamide, there are various methods.
First, start with 3-methylpyridine-2-carboxylic acid, react with ammonia, and then condensate. First, make 3-methylpyridine-2-carboxylic acid and an appropriate amount of ammonia in a suitable reactor, add a condensing agent such as dicyclohexyl carbodiimide (DCC), under the protection of inert gas, under moderate temperature control, such as 50-80 degrees Celsius, when the reaction number. DCC can promote the condensation of carboxylic acid and ammonia, remove water to form an amide. After the reaction is completed, (3-methylpyridine-2-yl) formamide can be obtained by separation and purification, such as column chromatography, recrystallization, etc.
Second, start with 3-methylpyridine-2-carboxylate. Take 3-methylpyridine-2-carboxylate and ammonia in a solvent, such as ethanol, methanol, etc., add a catalyst such as sodium methoxide or sodium ethanol, at room temperature or slightly warmed up, about 30-60 degrees Celsius, the ester and ammonia are reacted by aminolysis, and the ester group is changed to an amide group. After the reaction, the solvent is distilled to remove the solvent, and then purified by extraction, crystallization, etc., and the target product is also obtained.
Third, the halogenated 3-methylpyridine is used as the starting material. If 2-halogenated 3-methylpyridine is nucleophilically substituted with sodium cyanide, 2-cyano-3-methylpyridine is obtained, and then hydrolyzed to form an amide group. First, the halogenated compound and sodium cyanide are reacted with a polar solvent such as N, N-dimethylformamide (DMF) in a controlled temperature of 80-120 degrees Celsius to form nitriles. Then the nitrile is hydrolyzed under acidic or alkaline conditions, dilute sulfuric acid is used in acidic conditions, and sodium hydroxide solution is used in alkaline conditions. After hydrolysis, it is adjusted to neutral, and (3-methylpyridine-2-yl) formamide can be obtained after separation and purification.
This number method has its own advantages and disadvantages, and it needs to be selected according to the actual situation, such as the availability of raw materials, cost considerations, and purity of the product.

When storing and transporting (3-methylpyridine-2-yl) methyl ether, pay attention to the following numbers:
First, the control of temperature and humidity is extremely critical. This substance is quite sensitive to temperature and humidity, and high temperature or high humidity environment can easily cause its properties to change, or cause decomposition and other undesirable conditions. Therefore, the storage place should be kept cool and dry, with the temperature roughly controlled at 15-25 degrees Celsius and the humidity at 40% -60%. When transporting, also pay attention to the change of external temperature and humidity. In case of high temperature weather, appropriate cooling measures should be taken, such as refrigerated transportation equipment; in case of humid weather, ensure that the transportation tool is well sealed to prevent moisture intrusion.
Second, fire and explosion-proof is the top priority. (3-methyl pyridine-2-yl) methyl ether is flammable, and it is easy to burn and explode in case of open flames and hot topics. Storage places must be kept away from fire and heat sources, and smoking is strictly prohibited. Electrical equipment in the warehouse should be explosion-proof and equipped with complete fire protection facilities, such as fire extinguishers, fire sand, etc. During transportation, vehicles must also meet fire and explosion protection standards. Drivers and escorts must be familiar with fire protection knowledge and emergency response methods.
Third, avoid contact with oxidants. (3-methylpyridine-2-yl) methyl ether and oxidant will react violently, even causing danger. When storing, store separately from oxidant, do not mix storage. During transportation, do not transport with oxidant in the same car to prevent accidents.
Fourth, the packaging should be firm and tight. Packaging materials should have good sealing and corrosion resistance to prevent leakage. When storing, regularly check whether the packaging is in good condition. If it is damaged, it is necessary to replace the packaging in time. Before transportation, it is necessary to carefully check the packaging to ensure that there will be no leakage during the transportation turbulence. In the event of a leak, emergency measures should be taken immediately to evacuate personnel and handle it properly.