3-(trifluoromethyl)pyridine-2-carbaldehyde

What are the main uses of triethylamine 2-ethylhexanol?
Triethylamine, its properties are unique. In the field of engineering, the use is difficult. First, it can be used as a catalyst for synthesis. It can promote the general reaction, such as esterification reaction and acetylation reaction. In esterification, triethylamine can help the reaction of acid and alcohol, so that the reaction rate is accelerated, and the generation efficiency of the compound is improved. Second, it can be used in the synthesis. In the process of polymers, triethylamine often plays an important role in the synthesis of active ingredients. Third, it is also indispensable to help the production of rubber. It can improve some properties of rubber, such as vulcanization promotion, etc., so that the quality of rubber products can be improved.
To 2-ethylhexanol, the use is also important. First and foremost, it can be used as a plasticizing raw material. From the reverse, the plasticizer is like a plasticizer, and it is applied to the plastic industry. This plasticizer can improve the flexibility and plasticity of plastics, making plastics more processable and usable. For example, in polyvinyl chloride (PVC) plastics, the plasticizer obtained by adding 2-ethylhexanol can make PVC soft and used in the manufacture of various plastic products. Secondly, 2-ethylhexanol can be used to dissolve plastics. Because of its good solubility, it can dissolve polyester and other ingredients, making it easier to distribute the material evenly during construction and improving the performance of the film. Furthermore, it is also useful in the addition of lubricating oil, which can increase some properties of lubricating oil, such as anti-wear properties, and improve the use effect of lubricating oil products.

In "Tiangong Kaizhi", there are two ways to synthesize triethylamine-2-ethylhexanol.
The first is the esterification reaction method. Triethylamine and 2-ethylhexanol are used as raw materials, and the esterification reaction occurs by heating under the action of acidic catalysts such as sulfuric acid and p-toluenesulfonic acid. During the reaction, the temperature needs to be controlled in a suitable range, generally at 100-150 ° C. Although acidic catalysts can accelerate the reaction, the reaction is completed, and it needs to be neutralized in alkali solution. The subsequent separation and purification steps are also cumbersome, and it needs to be distilled, extracted, etc., to obtain a pure product.
The second is the condensation reaction method. The condensation of triethylamine with suitable aldehyde and ketone compounds under the action of an alkaline catalyst is followed by hydrogenation and reduction to obtain 2-ethylhexanol. Basic catalysts can be selected from sodium hydroxide, potassium hydroxide, etc. In this process, the condensation reaction conditions are quite critical, the temperature is mostly 50-80 ° C, and the pressure needs to be properly regulated. The hydrogenation reduction step needs to be carried out under the action of specific catalysts such as palladium carbon, platinum carbon, etc., at a certain hydrogen pressure and temperature (about 80-120 ° C). The advantage of the condensation reaction method is that the raw materials are easy to purchase and the product purity is relatively high, but the reaction steps are more, and the reaction equipment and operation technology requirements are also high.
In summary, both methods have advantages and disadvantages. In actual synthesis, it is necessary to comprehensively weigh factors such as raw material availability, cost, and product purity requirements, and choose an appropriate method for the synthesis of triethylamine-2-ethylhexanol.

Tripentyl is an organic compound formed by the connection of pentyl groups. Dipentene, also known as dipentene, is a terpenoid compound, chemically named 1,8-terpene diene, and its physical properties are described in detail below:
1. ** Appearance and properties **: Dipentene is a colorless to light yellow transparent liquid under normal conditions, with a clear appearance and no obvious impurities. It is visually similar to common light oils and will have a certain luster in sunlight.
2. ** Odor **: has a unique smell, similar to lemon aroma, fresh and volatile, and can be smelled clearly aromatic. This smell has certain application value in the fragrance industry.
3. ** Density **: The density is smaller than that of water, about 0.84g/cm ³. If it is mixed with water, it will float on the water surface and form a clear layer. The upper layer is dipentene, and the lower layer is water.
4. ** Boiling point and melting point **: The boiling point is about 176-177 ° C. At this temperature, dipentene changes from liquid to gaseous; the melting point is about -95.5 ° C. When the temperature drops below this point, dipentene solidifies from liquid to solid.
5. ** Solubility **: It is difficult to dissolve in water, but it can be miscible with most organic solvents such as ethanol, ether, chloroform, etc., and can be rapidly dispersed in ethanol to form a uniform solution.
6. ** Volatility **: Strong volatility, placed in an open environment, will gradually evaporate into the air, the mass decreases with time, and its volatilization rate is faster than that of some high-boiling organic compounds.
7. ** Refractive index **: The refractive index is about 1.4727. This optical property makes it a specific refraction phenomenon when light passes through, which can be accurately determined by a refractometer.

The chemical properties of triallylamine ($N (CH_2CH = CH_2) _3 $) are significantly different from those of 2 dollars - $ethylhexanol.
Triallylamine, with allyl and amino structures, is basic and can form salts with acids. Because allyl has unsaturated double bonds, addition and polymerization reactions can occur. Such as addition to hydrogen halide, hydrogen atoms are added to the ortho-carbon of the carbon atom attached to the amino group, and halogen is added to the other end of the double bond, following the Markov rule. Under the action of the initiator, the double bond is opened, and a polymerization reaction occurs to form a polymer, which is used to prepare special polymer materials. Its amino group can also undergo nucleophilic substitution reaction with acyl halide, acid anhydride, etc., to form amide compounds, which are used in organic synthesis and material modification.
2 dollars - $ethylhexanol, which belongs to alcohols and has typical properties of alcohols. Hydroxyl groups can undergo substitution reactions. When reacting with hydrohalic acids, hydroxyl groups are replaced by halogens to form halogenated hydrocarbons; esterification reactions with carboxylic acids catalyzed by acids form esters, which are widely used in the production of fragrances and plasticizers. Hydroxyl groups can also be oxidized. Under different conditions, they can be oxidized to aldodes, carboxylic acids or ketones. In addition, due to the presence of long carbon chains in the molecule, it has certain hydrophobicity and is often < Br >
The two have different structures, chemical properties and application fields. Triallylamine is mostly used in polymer synthesis and organic synthesis to prepare nitrogen-containing compounds, while 2 dollars - ethylhexanol plays an important role in ester synthesis and surfactant preparation.

What is the price of triethylamine and 2-ethylhexanol in the market? In the market, the price of various goods often changes from time to time, and varies from place to place, and is related to the state of supply and demand, the source of materials, and the complexity and simplicity of the manufacturing process.
When it comes to triethylamine, its price often varies depending on purity. Those with high purity are expensive, but because of their refining process, they need to use exquisite methods and consume a lot. The common grades in the city, if the supply is sufficient, but the demand is not available, the price may be flat. However, in the event of a sharp decrease in the production of raw materials, or a surge in demand, such as when some chemical processes are booming, their prices may also rise.
As for 2-ethylhexanol, the price depends on the same. If the price of basic raw materials such as crude oil moves, its price will also fluctuate. And if related industries, such as coatings, plasticizers and other fields, have strong demand for them, but the output is not enough, the price will also be high.
To determine the current price of the two, when visiting the cities of chemical raw materials, consulting merchants, or referring to professional chemical information platforms, you can obtain a more accurate number. If the market situation changes, it is not a word to determine the price.