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Benzene, 1-Chloro-3-Ethynyl-
Linshang Chemical
|
HS Code |
609458 |
| Name | 1 - Chloro - 3 - ethynylbenzene |
| Molecular Formula | C8H5Cl |
| Molar Mass | 136.58 g/mol |
| Appearance | Liquid (predicted) |
| Boiling Point | 202 - 203 °C |
| Density | 1.16 g/cm³ (estimated) |
| Solubility In Water | Insoluble |
| Flash Point | 81 °C |
| Vapor Pressure | Low |
| Logp | 3.02 (estimated) |
| Chemical Class | Aryl halide, alkynylbenzene |
As an accredited Benzene, 1-Chloro-3-Ethynyl- factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | 100 - gram bottle packaging for 1 - chloro - 3 - ethynyl - benzene chemical. |
| Storage | Store "Benzene, 1 - chloro - 3 - ethynyl -" in a cool, well - ventilated area, away from heat, sparks, and open flames as it is likely flammable. Keep it in a tightly closed container, preferably made of corrosion - resistant materials. Isolate it from oxidizing agents and incompatible substances. Label the storage clearly for easy identification and safety compliance. |
| Shipping | 1 - Chloro - 3 - ethynyl - benzene is a chemical that may require special shipping. It should be transported in containers compliant with regulations for hazardous chemicals, ensuring proper containment to prevent leakage during transit. |
Competitive Benzene, 1-Chloro-3-Ethynyl- prices that fit your budget—flexible terms and customized quotes for every order.
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What are the chemical properties of 1-chloro-3-ethynylbenzene?
The chemical activity of cyanobenzene is interesting, let me explain.
The existence of atoms makes the molecular sub-cloud divide. In the case of elements, the chemical properties are low, and the effect is low in the molecule, resulting in a decrease in the density of benzene sub-clouds. Therefore, its substitution of anti-benzene activity, the benzene has benzene. On the benzene, the cyanyl group is also added, and the group has an absorber property. The two are the same, so that the benzene sub-cloud is unevenly distributed, and the anti-activity at specific positions is low.
Its substitution and anti-atom in the nucleus, the atom can be removed from the group, and then the reaction is easy. Such as chlorine atoms, phase bromine and iodine atoms, the degree of degeneration is slightly higher. Moreover, the presence of cyanyl groups affects the density of near-atomic subatomic clouds, and has an effect on the reaction rate and reaction rate.
Furthermore, its chemical properties play an extraordinary role in the synthesis of molecules. It can be reversed as well, and it can build a solid skeleton. Or by nuclear substitution, new radicals are introduced; or under catalytic components, it can generate even and reverse radicals, expand carbon emissions, and synthesize multiple compounds.
And because of its specificity, it can also show its skills in the synthesis of compounds and the field of materials. It can be used to repair compounds first, to find molecules with better activity; in material synthesis, to give materials specific properties, such as light, activity, etc.
In this case, 1 + - - 3 - cyanobenzene is very special, and in the chemical field, it is like a spoon, and it is very difficult to explore the secrets of the world.
What are the physical properties of 1-chloro-3-ethynylbenzene
"Tiangong Kaiwu" is an ancient scientific and technological masterpiece in our country. The following describes the "physical properties of 1-chloro-3-isopropylbenzene" in its classical style:
1-chloro-3-isopropylbenzene is mostly liquid at room temperature. Its color is clear, water-like and slightly oily, and it has a crystal clear feeling when viewed.
Smell it, it has a special smell, not Xin but not odor, but the smell is quite different from ordinary things, which can be keenly felt in the surrounding air.
As for its boiling point, under specific pressure conditions, it can reach a certain value, which varies slightly due to pressure changes. It is generally suitable for pressure environment, and its boiling point is enough to make it gradually transform from liquid to gaseous state under ordinary heating methods, and rise in space.
And the melting point, at a certain temperature limit, can be converted from solid to liquid state. When the external temperature drops below the melting point, this substance solidifies into a solid state, with a stable shape and slightly hard texture.
Its density is greater than that of water. If it is co-placed with water, it can be seen that it sinks in the bottom of the water, and the two boundaries are distinct and immiscible. And this substance has good solubility in organic solvents, and can be miscible with many organic solvents. After melting, a uniform mixed system is formed.
Furthermore, the refractive index of 1-chloro-3-isopropylbenzene also has a unique value. When light passes through this object, its propagation direction and speed change. This characteristic can be accurately measured by special instruments, which is an important basis for identifying this substance and studying related properties.
1-chloro-3-isopropylbenzene is mostly liquid at room temperature. Its color is clear, water-like and slightly oily, and it has a crystal clear feeling when viewed.
Smell it, it has a special smell, not Xin but not odor, but the smell is quite different from ordinary things, which can be keenly felt in the surrounding air.
As for its boiling point, under specific pressure conditions, it can reach a certain value, which varies slightly due to pressure changes. It is generally suitable for pressure environment, and its boiling point is enough to make it gradually transform from liquid to gaseous state under ordinary heating methods, and rise in space.
And the melting point, at a certain temperature limit, can be converted from solid to liquid state. When the external temperature drops below the melting point, this substance solidifies into a solid state, with a stable shape and slightly hard texture.
Its density is greater than that of water. If it is co-placed with water, it can be seen that it sinks in the bottom of the water, and the two boundaries are distinct and immiscible. And this substance has good solubility in organic solvents, and can be miscible with many organic solvents. After melting, a uniform mixed system is formed.
Furthermore, the refractive index of 1-chloro-3-isopropylbenzene also has a unique value. When light passes through this object, its propagation direction and speed change. This characteristic can be accurately measured by special instruments, which is an important basis for identifying this substance and studying related properties.
What are the main uses of 1-chloro-3-ethynylbenzene?
1 + --3-methylphenyl silicon mainly has the following uses:
First, in the field of synthesis, it is often used in important synthesis. Due to its special chemical properties, it can produce many reversals, such as atoms, which can generate substitution reversals under suitable components, and can be replaced with other reversals, introducing new functionalities, and building more efficient molecules to help synthesize various compounds, including molecular precursors with specific physiological activities.
Second, in terms of materials, it can be modified by materials. The introduction of silicon atoms into polymer materials and the properties of methyl phenyl groups can improve the resistance and chemical resistance of materials. For example, the addition of 1 + -3-methylphenyl silicon to some plastic materials can make plastics more stable in high temperature environments, less prone to deformation, and increase the resistance of acid and other compounds. It can also be used for large materials.
Third, it also has extraordinary performance in the catalytic field. It can be used as a co-catalyst for some catalytic reactions, through its special active center interaction, the activity and performance of the whole catalyst. For example, in the addition of some alkenes, the addition of 1 + -3-methylphenyl silicon can make the catalytic reaction more efficient for specific alkenes, improving the efficiency of the reaction and the performance of the product.
Fourth, it has been made effective in surface treatment. Taking advantage of the characteristics of easy surface formation of silicon atoms in its molecules, the surface of gold, ceramics and other materials can be repaired. With this treatment, the surface durability and wear resistance of the material can be improved. For example, a protective film is formed on the surface of gold, which can not only prevent gold production, but also improve the luminosity and wear resistance of the surface of gold.
First, in the field of synthesis, it is often used in important synthesis. Due to its special chemical properties, it can produce many reversals, such as atoms, which can generate substitution reversals under suitable components, and can be replaced with other reversals, introducing new functionalities, and building more efficient molecules to help synthesize various compounds, including molecular precursors with specific physiological activities.
Second, in terms of materials, it can be modified by materials. The introduction of silicon atoms into polymer materials and the properties of methyl phenyl groups can improve the resistance and chemical resistance of materials. For example, the addition of 1 + -3-methylphenyl silicon to some plastic materials can make plastics more stable in high temperature environments, less prone to deformation, and increase the resistance of acid and other compounds. It can also be used for large materials.
Third, it also has extraordinary performance in the catalytic field. It can be used as a co-catalyst for some catalytic reactions, through its special active center interaction, the activity and performance of the whole catalyst. For example, in the addition of some alkenes, the addition of 1 + -3-methylphenyl silicon can make the catalytic reaction more efficient for specific alkenes, improving the efficiency of the reaction and the performance of the product.
Fourth, it has been made effective in surface treatment. Taking advantage of the characteristics of easy surface formation of silicon atoms in its molecules, the surface of gold, ceramics and other materials can be repaired. With this treatment, the surface durability and wear resistance of the material can be improved. For example, a protective film is formed on the surface of gold, which can not only prevent gold production, but also improve the luminosity and wear resistance of the surface of gold.
What is the synthesis method of 1-chloro-3-ethynylbenzene?
To make 1-cyanogen-3-isopropylbenzene, you can follow the following ancient method.
Take benzene first, use anhydrous aluminum trichloride as a catalyst, and place it in a reactor with isopropyl chloride. When the two meet, it is a Fu-gram alkylation reaction. In the meantime, isopropyl chloride is affected by aluminum trichloride to dissociate isopropyl positive ions. This positive ion is electrophilic, so it attacks the electron cloud of the benzene ring and replaces the hydrogen atom on the benzene ring to generate isopropylbenzene. This step requires attention to the reaction temperature and the amount of catalyst. If the temperature is too high, it is easy to produce more substitution by-products, and if there is too little catalyst, the reaction rate
After obtaining isopropylbenzene, mix it with bromine under light or heating conditions. Under the excitation of light or heat, the bromine molecule is homogenized into a bromine radical, which attacks the α-hydrogen atom on the isopropyl group of isopropylbenzene to generate α-bromoisopropylbenzene. During this reaction, the control of light intensity or heating temperature is very critical. If the conditions are not correct, it may lead to poor positional selectivity of bromide or excessive bromination.
Then, α-bromoisopropylbenzene is reacted with sodium cyanide in a suitable solvent. Cyanide ions are nucleophilic and can replace bromine atoms in α-bromoisopropylbenzene to form 1-cyano3-isopropylbenzene through nucleophilic substitution reaction. The choice of solvent in this step is very important, and a polar aprotic solvent needs to be selected to facilitate the reaction, and attention should be paid to the pH and reaction time of the reaction system to avoid side reactions.
In this way, 1-cyano3-isopropylbenzene can be prepared through multiple steps of reaction.
Take benzene first, use anhydrous aluminum trichloride as a catalyst, and place it in a reactor with isopropyl chloride. When the two meet, it is a Fu-gram alkylation reaction. In the meantime, isopropyl chloride is affected by aluminum trichloride to dissociate isopropyl positive ions. This positive ion is electrophilic, so it attacks the electron cloud of the benzene ring and replaces the hydrogen atom on the benzene ring to generate isopropylbenzene. This step requires attention to the reaction temperature and the amount of catalyst. If the temperature is too high, it is easy to produce more substitution by-products, and if there is too little catalyst, the reaction rate
After obtaining isopropylbenzene, mix it with bromine under light or heating conditions. Under the excitation of light or heat, the bromine molecule is homogenized into a bromine radical, which attacks the α-hydrogen atom on the isopropyl group of isopropylbenzene to generate α-bromoisopropylbenzene. During this reaction, the control of light intensity or heating temperature is very critical. If the conditions are not correct, it may lead to poor positional selectivity of bromide or excessive bromination.
Then, α-bromoisopropylbenzene is reacted with sodium cyanide in a suitable solvent. Cyanide ions are nucleophilic and can replace bromine atoms in α-bromoisopropylbenzene to form 1-cyano3-isopropylbenzene through nucleophilic substitution reaction. The choice of solvent in this step is very important, and a polar aprotic solvent needs to be selected to facilitate the reaction, and attention should be paid to the pH and reaction time of the reaction system to avoid side reactions.
In this way, 1-cyano3-isopropylbenzene can be prepared through multiple steps of reaction.
What should be paid attention to when storing and transporting 1-chloro-3-ethynylbenzene?
Saltpeter, sulfur, and charcoal are mixed as the base of gunpowder. Among them, saltpeter and sulfur should be paid attention to during storage and transportation.
When storing, the first weight is dry. Saltpeter is very easy to absorb moisture. If the environment is humid, saltpeter is damp, which not only affects its performance, but also causes deterioration and failure. Therefore, when choosing a dry place, use masonry as the base, and put medicine on the shelf to keep it off the ground and avoid the moisture of the earth. And in the warehouse, it is advisable to set up ventilated windows to allow air circulation and disperse moisture.
The second time is fire prevention. Sulfur is flammable, and it will ignite quickly in case of open flames and hot topics. Although saltpeter is not flammable, it is also dangerous in hot topic environments. Therefore, around the warehouse, fireworks should be prohibited, and fire-extinguishing equipment should be prepared, such as sand buckets, water jars, etc., just in case. Lighting in the warehouse should also use safety lamps and candles, and special personnel should be in charge of regular inspections to prevent candles from causing fires.
Furthermore, to prevent impact. Gunpowder ingredients are prone to danger due to impact or friction. In the storage place, the medicine cabinet and medicine buckets should be stacked stably. When handling, handle them with care, and do not throw or collide, so as to avoid reactions caused by internal components due to impact.
When transporting, there are also all kinds of attention. First, the packaging must be tight. Contain it in a thick wooden box or iron drum, and fill it with hay, cotton wool, etc., so that the medicine is stable in the box and barrel, and it will not shake and collide. And the outside of the box and barrel should be marked with warning words such as "gunpowder ingredients, handle with care".
Second, choose a safe transportation route. Avoid busy cities and crowded places, and do not travel through densely forested areas, just in case of fire, the fire will spread and cause disasters. The transportation team should be led by a special person, familiar with the route and emergency methods.
Third, control the transportation speed. Do not speed by car or boat, move forward smoothly, reduce bumps and vibrations, and ensure the safety of gunpowder during transportation. Therefore, when storing and transporting gunpowder ingredients such as saltpeter and sulfur, care must be taken to ensure safety.
When storing, the first weight is dry. Saltpeter is very easy to absorb moisture. If the environment is humid, saltpeter is damp, which not only affects its performance, but also causes deterioration and failure. Therefore, when choosing a dry place, use masonry as the base, and put medicine on the shelf to keep it off the ground and avoid the moisture of the earth. And in the warehouse, it is advisable to set up ventilated windows to allow air circulation and disperse moisture.
The second time is fire prevention. Sulfur is flammable, and it will ignite quickly in case of open flames and hot topics. Although saltpeter is not flammable, it is also dangerous in hot topic environments. Therefore, around the warehouse, fireworks should be prohibited, and fire-extinguishing equipment should be prepared, such as sand buckets, water jars, etc., just in case. Lighting in the warehouse should also use safety lamps and candles, and special personnel should be in charge of regular inspections to prevent candles from causing fires.
Furthermore, to prevent impact. Gunpowder ingredients are prone to danger due to impact or friction. In the storage place, the medicine cabinet and medicine buckets should be stacked stably. When handling, handle them with care, and do not throw or collide, so as to avoid reactions caused by internal components due to impact.
When transporting, there are also all kinds of attention. First, the packaging must be tight. Contain it in a thick wooden box or iron drum, and fill it with hay, cotton wool, etc., so that the medicine is stable in the box and barrel, and it will not shake and collide. And the outside of the box and barrel should be marked with warning words such as "gunpowder ingredients, handle with care".
Second, choose a safe transportation route. Avoid busy cities and crowded places, and do not travel through densely forested areas, just in case of fire, the fire will spread and cause disasters. The transportation team should be led by a special person, familiar with the route and emergency methods.
Third, control the transportation speed. Do not speed by car or boat, move forward smoothly, reduce bumps and vibrations, and ensure the safety of gunpowder during transportation. Therefore, when storing and transporting gunpowder ingredients such as saltpeter and sulfur, care must be taken to ensure safety.
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