1,2-Dichloro-3-butene, its main uses are as follows:
This substance is very important in the field of organic synthesis. It can be used as a key intermediate to prepare many organic compounds with specific structures and properties. For example, in the synthesis of fine chemical products, complex organic molecular structures can be constructed through a series of chemical reactions, laying the foundation for the synthesis of drugs, fragrances, etc.
In the field of materials science, it can be used to participate in polymerization reactions to prepare polymer materials with special properties. Through clever design of reaction conditions and comonomers, materials are endowed with properties such as excellent chemical resistance and good mechanical properties, and play a key role in material applications in special fields.
In the field of pesticide synthesis, 1,2-dichloro-3-butene also has a place. It can be used as a starting material for the synthesis of some high-efficiency and low-toxicity pesticides. After chemical modification and reaction, pesticide products with specific killing effects on pests and environmental friendliness can be prepared, providing a powerful means for agricultural pest control.
However, it should be noted that 1,2-dichloro-3-butene has certain toxicity and irritation. During use, storage and transportation, relevant safety regulations and operating procedures should be strictly followed to ensure the safety of personnel and the environment is not polluted. When performing various reactions using it as a raw material, it is also necessary to precisely control the reaction conditions to improve the reaction efficiency and product purity.

1% 2C2-dichloro-3-butene is an organic compound, and its physical properties are quite unique. Although it is difficult to find direct records in ancient books, it can be analyzed from the perspective of "Tiangong Kaiwu".
This substance is mostly in a liquid state at room temperature, like smart water, but not as clear and simple as water. Its color may be colorless, just like transparent glaze, pure but without variegation; or slightly yellowish, like the shimmer of early morning light, vague and elegant. Looking at its appearance, it is like a calm lake surface, without waves and water, but the chemical activity contained in it is not as quiet as the surface.
Smelling its smell, it must give off a special smell, or it may be irritating, like a spicy smell, rushing straight into the nose, making people instantly alert; or it may have a fragrant charm, but it is not the sweet and greasy of traditional flowers, but a unique organic fragrance, which attracts people to explore the mysteries.
The boiling point and melting point of 1% 2C2-dichloro-3-butene are crucial for the identification and separation of substances. Its boiling point or in a specific temperature range, when heated to this point, it is like ice melting into water, sublimating from liquid to gaseous state, realizing the transformation of phase state; the melting point also has its fixed value, like a limit, when the temperature drops below, it changes from flowing state to solid state, like water condensing into ice, and the shape changes significantly.
Its density may be different compared to water. If it is placed in the same place as water, or floating on water, it looks like a light boat on the lake surface; or sinking underwater, like a boulder falling into a deep pool, this property also provides a key basis for identification and separation.
In terms of solubility, it varies in different solvents. In organic solvents, such as salt, it is easily dissolved and fused with water; in water, or like oil floating in water, it is difficult to blend, which is of great significance in chemical preparation and purification.

1% 2C2-dichloro-3-chloropropene This substance is chemically unstable.
1% 2C2-dichloro-3-chloropropene The molecular structure contains multiple chlorine atoms, and the carbon-chlorine bond has a certain polarity. From the perspective of reactivity, it is prone to attack by nucleophiles. In an alkaline environment, chlorine atoms are easily replaced by nucleophilic groups such as hydroxyl groups, and nucleophilic substitution reactions occur. For example, in aqueous sodium hydroxide solutions, compounds containing hydroxyl groups may be gradually formed.
Moreover, there are unsaturated bonds in the molecules of this substance, namely carbon-carbon double bonds. Carbon-carbon double bonds are electron-rich and vulnerable to attack by electrophilic reagents, resulting in addition reactions. Like when it meets bromine water, the double bond will be added to bromine, causing the bromine water to fade. Under light conditions, the chlorine atoms in its molecules may also undergo free radical reactions, and the chlorine atoms are separated from the molecules to form chlorine free radicals, which in turn triggers a series of complex reactions.
In addition, 1% 2C2-dichloro-3-chloropropene may slowly undergo the above reactions and deteriorate if it comes into contact with air, moisture or certain impurities during storage. Therefore, it needs to be properly stored. It is usually sealed in a cool, dry place away from fire sources and oxidants to maintain its chemical stability as much as possible. However, due to its own structural characteristics, it is difficult to maintain an absolutely stable state for a long time.

The preparation methods of 1% 2C2-dideuterium-3-deuterium-substituted propylene are generally as follows:
One is to use propylene as the starting material, through halogenation reaction, such as with bromine under the action of light or initiator, 1-bromo-2-propylene is generated, and then deuterated reagents, such as deuterated alcohol solution of deuterated alcohol potassium, can introduce deuterium atoms, and through subsequent reaction steps, the target product can be obtained. The reaction mechanism lies in the nucleophilic substitution of halogen atoms, the negative ions of deuterated reagents attack the alpha-carbon of halogenated hydrocarbons, and the halogen ions leave to realize the introduction of deuterium atoms.
The second can be started from the corresponding enol ether. The enol ether and the deuterated acid undergo an addition reaction to form an intermediate. After the elimination reaction, the corresponding alcohol is removed to obtain an olefin containing deuterium. In this process, the double bond of the enol ether is nucleophilic, and it is added to the proton (deuterium) of the deuterated acid. Then under alkaline conditions, the alcohol part is eliminated to construct the target olefin structure.
The third is to use alkynes as raw materials and pass the method of partial reduction. If 1-propane is used as the starting point, in the presence of a specific catalyst, such as Lindra catalyst, deuterium gas is used for partial reduction, and alkynes can be selectively reduced to cis-olefins to achieve the introduction of deuterium atoms in the olefin structure, thereby obtaining 1% 2C2-dideuterium-3-deuterated propene. This reaction is based on the selectivity of the catalyst for the reduction of alkynes, and the reaction is controlled to stay in the olefin stage.
All these methods have their own advantages and disadvantages. In actual preparation, the appropriate method should be carefully selected according to the availability of raw materials, the difficulty of reaction conditions, and the purity requirements of the product.

1% 2C2-dichloro-3-chloropropene should be used with caution in all matters of storage and transportation. Its nature is strong and dangerous, and if it is not careful, it will cause disaster.
When storing, the place must be carefully selected. It must be placed in a cool and ventilated place, away from fire and heat sources. Because it is flammable, it will burn in case of fire, and the fire is difficult to control, which is easy to cause catastrophe. The temperature of the warehouse should be controlled in a suitable area to prevent its properties from mutating due to high temperature and causing danger. And the humidity of the warehouse should not be ignored. If the humidity is too high, it may react with water vapor, which will damage its quality and increase the risk.
Its container must be strong and sealed. This is the key to preventing it from leaking. If there is a leak, the poisonous gas will escape, which will harm people's health, and if it is light, it will be uncomfortable, and if it is heavy, it will endanger life; if it is in the environment, it will pollute its water, soil, and air, and the ecological balance will be broken.
When transporting, the person handling it must be professional and cautious. Load lightly and unload lightly, and do not do it brutally to prevent damage to the container and leakage. The tools used for transportation should also be carefully inspected to ensure that there are no hidden dangers.
Transportation route planning is also a priority. Avoid places with dense crowds, water sources and other key hazards. If it leaks on the way, in the crowd, the poisonous gas will spread, and all living beings will be harmed; in the water source, the water quality
Furthermore, transportation and storage must be carried out in accordance with laws and regulations. Carry the safety technical manual and chemical label of this object for inspection, to identify its hazards, and to remind people. In this way, the storage and transportation are safe and the disaster is avoided.