2-(4-bromophenyl)-1,3-thiazole-4-carbaldehyde

"Tiangong Kaiwu" is a scientific and technological masterpiece written by Song Yingxing in the Ming Dynasty, and the book has detailed records on many things. Today's answer to "What is the main use of 2- (4-naphthyl) -1,3-butadiene-4-methyl ether?" This question is answered in the style of ancient classical Chinese as follows:
Fu 2- (4-naphthyl) -1,3-butadiene-4-methyl ether is widely used in various chemical fields in this world. First, it is often a key raw material for organic synthesis. The art of organic synthesis is to create complex and delicate compounds. This substance is often the starting base. Through various reactions, or additions, or substitutions, it can breed a variety of new substances. For example, synthesizing special polymers, which can be used in the manufacture of materials. It can increase the toughness, heat resistance and other properties of materials, making the materials suitable for different needs, or for device parts, or for building materials.
Second, it is also important in the field of medical research and development. Doctors and drug researchers, with their characteristics, through delicate proportions and reactions, can produce pharmaceutical ingredients with specific curative effects. Or can participate in the construction of certain drug molecules, help drugs to act precisely on human lesions, heal diseases, and add a boost to saving the world and saving people.
Third, in the field of electronic materials, 2- (4-naphthyl) -1,3-butadiene-4-methyl ether is also available. For example, the manufacture of certain electronic components, due to their special chemical structure and electrical properties, can optimize the conductivity, insulation and other properties of the components, making electronic devices more delicate and efficient, and contributing to the development of today's electronic technology. In short, this substance is indispensable in many important fields such as chemical industry, medicine, and electronics, and has contributed greatly to the progress and development of this world.

To make ethyl ether, there are various methods. First, ethanol is used as a material, catalyzed by concentrated sulfuric acid, and dehydration and condensation can be obtained at a specific temperature. This process requires precise temperature control, about 140 degrees Celsius. If it is too high, ethylene will be produced, and if it is too low, the reaction will be slow. The chemical principle is that the hydroxyl group interacts with ethanol molecules, losing a water molecule and forming an ether bond.
Second, the reaction of halogenated ethane with sodium alcohol can also be obtained. The halogen atom of halogenated ethane is quite active. When it encounters the oxygen negative ion in sodium alcohol, the halogen atom leaves, and the oxygen atom is connected to the ethyl group to form the structure of ethyl ether. The reaction conditions are relatively mild, but the preparation of halogenated ethane and sodium alcohol may require a pre-step, and the cost and operation complexity may increase.
Third, ethylene and alcohol can also synthesize ethyl ether under the action of appropriate catalysts. Ethylene has unsaturated double bonds and can be added to alcohols. Such methods rely on specific catalysts, and the activity and selectivity of the catalyst have a great impact on the success or failure of the reaction and the purity of the product.
All these methods have advantages and disadvantages. According to factors such as the availability of raw materials, the cost, the difficulty of reaction conditions and the purity of the product, the most suitable method can be selected to achieve the purpose of preparing ethyl ether.

Mercury, commonly known as mercury, is the only metal that is liquid at room temperature. It is silver-white in color, has a metallic luster, flows and is heavy in quality.
Mercury is active and easily forms amalgam with many metals. Its boiling point is low, and it is easily volatilized when heated. It turns into mercury vapor. This is a highly toxic substance. It is accidentally inhaled and harmful to the human body.
Mercury has a wide range of uses. In alchemy, magicians believe that it has magical effects. It is often used to refine longevity pills, but it is much more harmful. In the metallurgical industry, precious metals such as gold and silver can be refined by amalgam method. It is also used to make thermometers, barometers and other instruments. It relies on its characteristics of thermal expansion and contraction to accurately measure changes in temperature and air pressure.
There is also realgar, its color is orange yellow, which is a sulfide mineral. Realgar is brittle and fragile, and it burns with white smoke and has a peculiar odor. In ancient times, it was often used as a pigment and painted on utensils and walls; it was also used as medicine. It has the effect of detoxifying insects, removing dry dampness and removing phlegm, and intercepting malaria. However, it contains arsenic and is toxic. Use it with caution.
Mercury and realgar are both treasures of nature. However, they need to be used to clarify their properties and make good use to avoid harm.

"Tiangong Kaiwu" is a scientific and technological masterpiece written by Song Yingxing in the Ming Dynasty. Today, I will answer your questions with his literary style.

Fu 2- (4-hydroxybenzyl) -1,3-dioxy-amyl-4-formaldehyde This substance has a complex structure and is a common intermediate in organic synthesis. In the reaction, it often participates in many nucleophilic and electrophilic reactions due to the structural characteristics of hydroxybenzyl and dioxy-amyl rings. It cooperates with aldehyde groups to control the process and product of the reaction.
As for the chemical properties of acetaldehyde, it has active chemical activity. First, it is reductive and can be oxidized by weak oxidants such as silver ammonia solution and new copper hydroxide suspension to generate acetic acid and corresponding reduction products. This is a landmark reaction of aldehyde groups and is used for aldehyde identification. Second, it can undergo an addition reaction. Due to the unsaturated carbon-oxygen double bond, it can be added with hydrogen under the action of a catalyst to generate ethanol, and it can also be added with nucleophiles such as hydrocyanic acid to expand the structure of the molecule. Third, it has alpha-hydrogen activity. It can undergo a hydroxyaldehyde condensation reaction under alkali catalysis to generate beta-hydroxyaldehyde, and further dehydrate to generate α, beta-unsaturated aldehyde. This reaction is used in organic synthesis to grow carbon chains and build complex organic molecular structures. The properties of acetaldehyde play an important role in the fields of chemical production and organic synthesis.

There is a question today, what is the price range of B bacteria in the market. I have heard that "Tiangong Kaiwu" has a cloud, all things in the world have their own price, and they all vary according to time, place, supply and demand. However, the price of B bacteria is not explicitly stated in the book.
In today's world, prices are constantly changing, and the price of B bacteria is also not constant. Looking at the market, its price may vary depending on the quality, output, use, and market demand of the bacteria. If B bacteria is of high quality, suitable for all kinds of urgent routes, and the output is scarce, but the market demand is strong, its price must be high. On the contrary, if the quality is normal, the output is abundant, and the demand is weak, the price may be low.
In other words, B bacteria is in the market, and the price range is difficult to determine. Roughly speaking, those with superior quality may reach tens of gold per catty; those with inferior quality may only be a few gold. However, this is only a temporary speculation, and the actual price should be subject to the current market conditions. If the market is fickle, the supply and demand trend changes from time to time, and the price of B bacteria fluctuates accordingly. To know the exact price, you must always observe the dynamics of the market and observe the changes in its supply and demand.