2-(Trifluoromethyl)pyridine-5-carboxaldehyde

Sanxiang methyl has special properties and can be used as a starting material for general synthesis. In the field of material manufacturing, with its basis, it can be derived with many special effects, which can be used to treat general diseases and save people's lives and diseases. In the field of materials science, it is also indispensable to assist in the research of new materials, or to increase their performance, or to change their properties, so that the materials can be used in general or special situations, such as high quality and high quality.
And five-A, its benefits are great. It can be used to prevent the harm of fields, ensure the prosperity of crops, and ensure the harvest of food, so that the people can avoid the suffering of food. And in some work processes, it also has the ability to help, or to promote the implementation of anti-terrorism, or to improve the efficiency and efficiency of work.
One, two - (Sanxiang methyl) to its five-A, or the cornerstone of prosperity, or the guarantee of prosperity, or the help of work and progress, both of which have great contributions to people's livelihood and science and technology, which cannot be ignored.

To prepare 2 - (triethyl) pentyl - 5 - ethylheptane, the synthesis method is as follows:
First, choose the raw material. Appropriate halogenated hydrocarbons and metal-organic reagents can be selected, such as halogenated alkanes and Grignard reagents. These two are quite commonly used in organic synthesis. Halogenated alkanes have active halogen atoms and are vulnerable to attack by nucleophilic reagents; Grignard reagents are rich in nucleophilic properties and can undergo nucleophilic substitution reactions with halogenated alkanes.
Subsequent reaction steps.
First, prepare Grignard reagents. Take an appropriate amount of halogenated hydrocarbons, such as bromoethane, place in an anhydrous ether environment, add magnesium chips, and At this time, bromoethane reacts with magnesium to form ethylmagnesium bromide, the Grignard reagent. This reaction needs to be carried out under anhydrous and oxygen-free conditions. The Geingert reagent is extremely active and easily decomposes in contact with water or oxygen. The reaction formula is: $C_2H_5Br + Mg\ xrightarrow [] {anhydrous ether} C_2H_5MgBr $.
Second, nucleophilic substitution reaction. The obtained ethylmagnesium bromide is added dropwise to the reaction system containing an appropriate halogenated hydrocarbon. For example, take 2- (triethylmethyl) -5 -halopentane, the halogen atom is attacked by the nucleophilic ethyl group in Grignard's reagent, and the halogen atom leaves to form the target product 2- (triethylmethyl) pentyl-5 -ethylheptane. The reaction formula is: $C_2H_5MgBr + R - X\ longrightarrow R - C_2H_5 + MgBrX $ (here $R $represents 2- (triethylmethyl) - 5 -pentyl, $X $represents the halogen atom).
After the reaction is completed, the post-treatment step is required. The reaction mixture often contains unreacted raw materials, by-products and magnesium salts. First, the dilute acid solution is used to neutralize the excess Grignard reagent and convert the magnesium salt into soluble magnesium ions. After extraction with an organic solvent, the organic phase is separated, and then dried and distilled to purify the target product, remove impurities, and obtain pure 2- (triethylmethyl) pentyl-5-ethylheptane. In this way, it can be synthesized into this compound.

(Triethylamino) -5-ethylheptane, this is an organic compound. Its physical properties are as follows:
First, looking at its properties, it is mostly colorless to light yellow liquid under normal conditions, pure and clear, but due to impurities or differences in the preparation process, or slightly colored.
Second, smell its smell, often emits a weak and special organic amine smell, this smell is not pungent, but has a unique recognition, like a mixture of light ammonia smell and hydrocarbon smell.
Third, in terms of its solubility, the substance can be well dissolved in most organic solvents, such as ethanol, ether, acetone, etc. Due to its own structure containing long carbon chains and amino groups, the carbon chain is lipophilic, and the amino group has a certain polarity, so it is soluble in both polar and non-polar organic solvents. However, its solubility in water is poor, and its solubility in water is greatly limited due to the hydrophobic effect of long carbon chains.
Fourth, measure its boiling point. Due to the existence of van der Waals forces and hydrogen bonds between molecules (amino groups can participate in the formation of hydrogen bonds), the boiling point is relatively high. It usually boils at a specific temperature range, about [X] ° C - [X] ° C. The specific value varies depending on the molecular purity and ambient pressure. When the pressure changes, the boiling point also changes, following the relationship between the boiling point and the pressure of general liquids. Fifth, measure its density. Compared with water, the density is slightly smaller and lighter than water. The two layers are clear, and a simple separation operation can be implemented based on the density difference.

(Triethylamino) ethylene-5-methyl ether, its chemical properties are as follows:
The triethylamino group contained in this compound has a certain alkalinity due to the lone pair electron on the nitrogen atom, which can react with acids to form corresponding salts. For example, in the case of hydrochloric acid, the lone pair electron of the nitrogen atom will combine with the hydrogen ion to form a stable quaternary ammonium salt cationic structure.
The presence of vinyl gives it significant unsaturated properties. First, an addition reaction can occur, such as the reaction with bromine water, the bromine atoms in the bromine molecule will be added to the two carbon atoms of the vinyl group, causing the bromine water to fade. This is a common method for identifying carbon-carbon double bonds. Hydrogenation reaction with hydrogen under the action of a catalyst can occur to form a saturated alkane structure; when adding with hydrogen halide, following the Markov rule, hydrogen atoms are mainly added to the double-bonded carbon atoms containing more hydrogen. Second, due to unsaturated vinyl, it is easily affected by external conditions and can undergo polymerization. Under the action of an initiator, the vinyl groups of many (triethylamino) ethylene-5-methyl ether molecules are connected to each other to form a polymer, which has important applications in the field of material synthesis. The oxygen atom in the methyl ether group is connected to the carbon atom, and the oxygen atom has a large electronegativity, which makes the methyl ether group have a certain polarity, which affects the solubility of the compound, and has good solubility in some polar organic solvents. In addition, the carbon-oxygen bond of the methyl ether group can be broken under specific conditions, such as in a strong acidic or high temperature environment with a specific catalyst, and some functional group conversion reactions can be carried out.

In today's market, the prices of di- (triethyl) ketone and pentaethylheptanal vary with the supply and demand of the market and the production situation.
In the city, where supply and demand go hand in hand. If the production of di- (triethyl) ketone is prosperous, and the demand is small, the price will be low; conversely, if the production is thin and the demand is large, the price will be high. As for pentaethylheptanal, the same is true. The abundance of its production and the amount of demand are all factors that change the price.
And the price of chemical products is also related to the price of raw materials and the difficulty of making them. If the price of the raw materials for making di- (triethyl) ketone is high, difficult to make and labor-intensive, the price will rise. If this is the case with five-ethyl heptanal. In addition, the competition in the market is also the main reason for the price. If you compete for sales, the price will decline; if you have a single market, the price can be operated.
However, if you want to know the exact price, you must visit the people or brokers in the cities, or check the information chapter of the trip in the cities, so that you can get a near-real price. The situation of the market is ever-changing, and it cannot be determined by a word. You must study it from time to time, so that you can know the change of its price.