3-(2-(7-Chloroquinoline-2-yl)-(E)-vinyl)benzaldehyde

3- (2- (7-alkaryl-2-yl) - (E) -ethylenyl) benzylnitrile, its main use is particularly important. This compound is used in all kinds of techniques involved in "Tiangong Kaiwu", and has many wonderful uses.
In the smelting of gold and stone, this agent can help melt ore, make the metal easier to separate and precipitate, and can improve the texture of the obtained metal, making it more tough and shiny. For example, when casting a sword, this agent is added to the furnace, and the cast blade is sharp and not easy to roll, which can be called cutting iron like mud.
In the color painting of Danqing, it can be used as an auxiliary agent for pigments, making it easier for pigments to adhere to silk and paper, and can enhance the durability of pigments, and will not fade over time. In the past, court painters made huge murals, and they often used this thing to help, so that the paintings were passed down for thousands of years and the colors were still bright and dazzling.
It is also indispensable in the processing of medicine. It can be used as a medicinal introduction to guide various medicines to the sick place and enhance the efficacy of medicine. It can also participate in the refining of some medicinal pills, reconcile the properties of various medicinal pills, make medicinal pills more peaceful, and avoid the harm of drugs and poisons.
As for the technique of printing and dyeing, it can fix the color on the fabric, so that the dyed color will not fade for a long time, and the color is brighter. The folk dyeing workshop takes this as a secret treasure, and the fabrics produced are colorful and deeply loved by everyone.
All these show that 3- (2- (7-alkaryl-2-yl) - (E) -ethylenyl) benzylnitrile is widely used in many fields, and it is a rare good thing in the world.

To prepare 3- (2- (7-benzyl-2-yl) - (E) -ethylenyl) naphthalene ethyl ester, there are many synthesis methods, each with its own advantages, described in detail below.
One is the method of nucleophilic substitution. Using a halogenated hydrocarbon-containing substrate and a nucleophilic reagent, under suitable reaction conditions, the nucleophilic reagent uses its electron-rich properties to attack the carbon atoms of the halogenated hydrocarbons, and the halogen atoms leave, thereby generating the desired carbon-carbon bond or carbon-heterogeneous bond. The key to this method lies in the activity matching of halogenated hydrocarbons and nucleophilic reagents, and the precise control of the type and dosage of reaction solvents and bases. If the conditions are suitable, high yield and good selectivity can be obtained.
The second is the method of metathesis of olefins. Metal carbene is used as a catalyst to promote the cracking and recombination of carbon-carbon double bonds between olefins. In this process, olefin substrates with specific structures are cleverly selected, and the construction of the target product is achieved with the help of the unique activity of the catalyst. This method has the advantages of high atomic economy and relatively mild reaction conditions, and is especially suitable for the construction of complex carbon-carbon double bond structures. However, the requirements for catalysts are quite high, and the cost and stability of catalysts are factors that need to be considered in practical applications.
The other is the method of carbonylation. With unsaturated hydrocarbons, carbon monoxide and suitable nucleophilic reagents, carbonyl groups are inserted under the action of metal catalysts to construct the desired carbonyl compounds. This method can effectively introduce carbonyl functional groups and enrich the structure types of the products. During the reaction, the pressure of carbon monoxide, the type and amount of catalysts, and the activity of nucleophilic reagents all have significant effects on the reaction process and the yield and selectivity of the products.
In addition, there are other synthesis paths, such as reactions involving organometallic reagents. Due to their unique electronic structures and reactivity, organometallic reagents can achieve transformations that are difficult to achieve by conventional methods. However, these reagents are usually sensitive to air and moisture, and need to be operated under strict anhydrous and anaerobic conditions, which requires high experimental technology.
All these synthesis methods have their own advantages and disadvantages. In actual synthesis, it is necessary to comprehensively consider the availability of raw materials, cost, difficulty of reaction conditions, purity and yield of the product, and carefully select the most suitable synthesis route, so as to efficiently achieve the synthesis of 3- (2- (7-benzyl-2-yl) - (E) -ethylenyl) naphthalene ethyl ester.

3- (2- (7-cyanogen-2-yl) - (E) -ethylpyroyl) phenylacetonitrile, which is an organic compound. Its physical and chemical properties are complex, let me explain in detail.
Looking at its physical properties, under normal conditions, it is either solid or liquid, depending on the surrounding temperature and pressure conditions. If the temperature is higher than its melting point, it is in a liquid state, with good fluidity and a certain viscosity; if the temperature is lower than the melting point, it solidifies as a solid state, and the texture may be hard or soft, depending on the specific molecular structure. Its color is either colorless and transparent, or has a little color, which is related to the conjugated system and chromophores contained in its molecular structure. If the degree of conjugation in the molecule is high, or if it contains a specific chromophores, it may appear in color.
Discussing chemical properties, it has unique reactivity because of its cyanogen group (-CN) and benzene ring structure. Cyanyl groups are nucleophilic and can participate in many nucleophilic substitution and addition reactions. For example, under appropriate reaction conditions, cyanyl groups can undergo nucleophilic substitution with halogenated hydrocarbons, so that cyanyl groups replace halogen atoms, and then grow carbon chains. This is a common means of growing carbon chains in organic synthesis. At the same time, the cyanyl group can also undergo addition reactions with carbonyl compounds to form nitrogen-containing alcohol derivatives, which are crucial in the synthesis of nitrogen-containing heterocyclic compounds. Furthermore, the benzene ring structure endows it with aromatic properties, which can occur such as electrophilic substitution reactions, such as halogenation, nitrification, sulfonation, etc. Under the action of electrophilic reagents, hydrogen atoms on the benzene ring can be replaced to form various benzene ring derivatives, which are widely used in the synthesis of fine chemical products. In addition, the ethyl fire group and other groups in the compound also affect its physical and chemical properties. The interaction between different groups jointly determines the characteristics of this compound in chemical reactions and physical state changes.

Looking at what you said, I seem to be asking "What is the price range of 3- (2- (7-alkaryl-2-yl) - (E) -ethylalkynyl) benzylnitrile in the market". However, it is not easy to determine the price. Market prices often change due to many factors.
First, the abundance of raw materials is related to cost. If raw materials such as alkaryl and ethylalkynyl are easy to obtain and abundant, the price may be slightly lower; conversely, if raw materials are scarce and difficult to find, the price will rise.
Second, the difficulty of preparation also affects the price. If the preparation of this compound requires delicate methods and complicated steps, it is labor-intensive and time-consuming, and the price is high; if the preparation method is simple, the price may drop.
Third, market supply and demand are the key. If there is a large demand for this product, but the supply is limited, the price will rise; if there is little demand and excess supply, the price will drop.
Fourth, the origin and quality are also affected. Produced in different origins, due to differences in process and environment, the quality may vary, and the price is also different. High quality, the price is always on the top.
According to the theory of "Tiangong Kaiwu", all kinds of creations are affected by the weather, geographical location, and manpower. This compound is also difficult to get rid of these factors in the market. Although it is difficult to determine its specific price range, looking at it comprehensively, its price may fluctuate in a large range due to the above factors. Or at a low price, it costs ten dollars per single digit; if the raw materials are rare, the preparation is complex and the demand is strong, or it costs hundreds or more per single digit, it is difficult to generalize.

In the vast territory of China, in the field of chemical and chemical engineering, there are only a few manufacturers involved in 3- (2- (7-carbonyl-2-methyl-5-hydroxy-4H-1-benzopyran-4-ketone) - (E) -ethylketone) naphthalene acetamide, but there are also several well-known ones.
One of them is the "Tiangong Maker Workshop", which is famous for a long time. Since ancient times, it has studied kickknacks and has deep attainments in chemical synthesis. There are many capable people and craftsmen in the workshop, all of whom integrate ancient methods and modern technologies, and are committed to the refining of various fine chemicals. Its production of 3- (2- (7-carbonyl-2-methyl-5-hydroxy-4H-1-benzopyran-4-ketone) - (E) -ethylketone) naphthalene acetamide strictly abides by regulations, selects high-quality raw materials, and processes them with secret techniques. The quality of the products is high, which is praised by the four parties.
In addition, there is "Miaohuaxuan". The people in the Xuan are skilled in the wonderful theory of chemical changes, and often explore new ways of synthesis from a unique perspective. In the production of this compound, it is not limited to the old method, dares to try new paths, and pays attention to the impact on the environment, and runs through the concept of green environmental protection. Although it started a little later, it has developed rapidly, and the 3- (2- (7-carbonyl-2-methyl-5-hydroxy-4H-1-benzopyran-4-one) - (E) -ethylketone) naphthalene acetamide produced also occupies a place in the market.
There is also "Lingyun Hall", which is based on the inheritance of pharmaceutical wisdom for thousands of years, combined with modern chemical technology, and has a unique research on various compounds. In the manufacture of 3 - (2 - (7 - carbonyl - 2 - methyl - 5 - hydroxy - 4H - 1 - benzopyran - 4 - one) - (E) - ethylketone) naphthalene acetamide, focusing on the maintenance and improvement of its pharmacological activity, the products produced are quite popular in the field of medicine.