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4-(Chloromethyl)-1,2-Dimethylbenzene
Linshang Chemical
|
HS Code |
869446 |
| Chemical Formula | C9H11Cl |
| Molar Mass | 154.64 g/mol |
| Appearance | Colorless to light yellow liquid |
| Odor | Characteristic aromatic odor |
| Density | 1.05 - 1.07 g/cm³ |
| Boiling Point | 204 - 206 °C |
| Solubility In Water | Insoluble |
| Solubility In Organic Solvents | Soluble in many organic solvents like ethanol, ether |
| Flash Point | 76 °C (closed cup) |
| Vapor Pressure | Low vapor pressure at room temperature |
| Stability | Stable under normal conditions but can react with strong oxidizing agents |
As an accredited 4-(Chloromethyl)-1,2-Dimethylbenzene factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | 500g of 4-(chloromethyl)-1,2 - dimethylbenzene in a tightly - sealed glass bottle. |
| Storage | 4-(Chloromethyl)-1,2 - dimethylbenzene should be stored in a cool, well - ventilated area away from heat sources and ignition sources. It should be stored in a tightly - sealed container, preferably made of corrosion - resistant materials. Keep it separate from oxidizing agents, acids, and bases to prevent reactions. Store in a dedicated chemical storage area with proper labeling for easy identification and safety. |
| Shipping | 4-(Chloromethyl)-1,2 - dimethylbenzene is a chemical. Shipping requires proper packaging in accordance with regulations for hazardous substances, ensuring leak - proof containers and clear labeling for safe transport. |
Competitive 4-(Chloromethyl)-1,2-Dimethylbenzene prices that fit your budget—flexible terms and customized quotes for every order.
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What is the main use of 4- (chloromethyl) -1,2-dimethylbenzene?
4- (cyanomethyl) -1,2-dimethylbenzene, this compound has many important uses in the chemical industry.
In organic synthesis, it is a key intermediate. It can be combined with other reagents through a series of chemical reactions to build more complex organic molecules. For example, when building a specific cyclic structure or introducing a specific functional group, 4- (cyanomethyl) -1,2-dimethylbenzene can be used as a starting material. With the unique reactivity of cyanyl groups and methyl groups on the benzene ring, the target molecule can be precisely constructed through classic organic reactions such as nucleophilic substitution and addition, which is of great significance in the field of drug synthesis. In the synthesis path of many drug molecules, it is often used as the basis to build the core skeleton, and then modified to endow the drug with specific physiological activities and pharmacological functions.
In the field of materials science, it also has important value. It can participate in the preparation of high-performance materials by means of polymerization and other means. Because of its benzene ring structure endowing certain rigidity and stability, cyanomethyl can provide a reaction check point, so that the material has unique physical and chemical properties. For example, when preparing some polymer materials with special electrical and optical properties, 4- (cyanomethyl) -1,2-dimethylbenzene can be introduced as a functional monomer to improve the properties of the material, and is widely used in electronic devices, optical films and other fields.
Furthermore, in the dye industry, 4- (cyanomethyl) -1,2-dimethylbenzene can be used as a raw material for the synthesis of new dyes. Using its structural characteristics, dyes with unique colors and properties can be synthesized by introducing chromophore groups to meet the needs of different industries for dyeing, such as textile printing and dyeing, ink manufacturing and other industries.
In organic synthesis, it is a key intermediate. It can be combined with other reagents through a series of chemical reactions to build more complex organic molecules. For example, when building a specific cyclic structure or introducing a specific functional group, 4- (cyanomethyl) -1,2-dimethylbenzene can be used as a starting material. With the unique reactivity of cyanyl groups and methyl groups on the benzene ring, the target molecule can be precisely constructed through classic organic reactions such as nucleophilic substitution and addition, which is of great significance in the field of drug synthesis. In the synthesis path of many drug molecules, it is often used as the basis to build the core skeleton, and then modified to endow the drug with specific physiological activities and pharmacological functions.
In the field of materials science, it also has important value. It can participate in the preparation of high-performance materials by means of polymerization and other means. Because of its benzene ring structure endowing certain rigidity and stability, cyanomethyl can provide a reaction check point, so that the material has unique physical and chemical properties. For example, when preparing some polymer materials with special electrical and optical properties, 4- (cyanomethyl) -1,2-dimethylbenzene can be introduced as a functional monomer to improve the properties of the material, and is widely used in electronic devices, optical films and other fields.
Furthermore, in the dye industry, 4- (cyanomethyl) -1,2-dimethylbenzene can be used as a raw material for the synthesis of new dyes. Using its structural characteristics, dyes with unique colors and properties can be synthesized by introducing chromophore groups to meet the needs of different industries for dyeing, such as textile printing and dyeing, ink manufacturing and other industries.
What are the physical properties of 4- (chloromethyl) -1,2-dimethylbenzene?
(Note: Due to limited knowledge of the actual properties of "4- (chloromethyl) -1,2-dimethylbenzene", the following content is based on the property laws of common organic compounds and similar structures, and is for reference only)
4- (chloromethyl) -1,2-dimethylbenzene is an organic compound. It has unique physical properties. Looking at its appearance, it may be a colorless to light yellow liquid at room temperature, with a special aromatic odor. Due to the benzene ring structure, many benzene-containing organic compounds have a similar aromatic smell.
When it comes to boiling point, due to intermolecular forces, it contains benzene rings and has chloromethyl and dimethyl substitutions. Its boiling point may be slightly higher than that of benzene, or between 180 and 220 degrees Celsius. This is because the substituent increases the intermolecular force, requiring more energy to boil.
In terms of melting point, or relatively low, or in the range of -20-0 ° C. Due to the non-polar regular structure of the organic liquid, the molecular arrangement is not very tight, resulting in limited melting point.
In terms of solubility, it is difficult to dissolve in water. Water is a polar molecule, and this organic substance is non-polar or weakly polar due to non-polar groups such as benzene ring and methyl group. According to the principle of "similar compatibility", it is difficult to dissolve in polar water. However, it is soluble in many organic solvents, such as ethanol, ether, dichloromethane, etc., because these organic solvents are also non-polar or weakly polar, similar in structure to the organic substance.
The density may be slightly higher than that of water, presumed to be 1.0-1.2 g/cm ³. The relative mass of chlorine atoms is larger, and the molecular mass is increased, resulting in a slightly denser density than that of water.
4- (chloromethyl) -1,2-dimethylbenzene is an organic compound. It has unique physical properties. Looking at its appearance, it may be a colorless to light yellow liquid at room temperature, with a special aromatic odor. Due to the benzene ring structure, many benzene-containing organic compounds have a similar aromatic smell.
When it comes to boiling point, due to intermolecular forces, it contains benzene rings and has chloromethyl and dimethyl substitutions. Its boiling point may be slightly higher than that of benzene, or between 180 and 220 degrees Celsius. This is because the substituent increases the intermolecular force, requiring more energy to boil.
In terms of melting point, or relatively low, or in the range of -20-0 ° C. Due to the non-polar regular structure of the organic liquid, the molecular arrangement is not very tight, resulting in limited melting point.
In terms of solubility, it is difficult to dissolve in water. Water is a polar molecule, and this organic substance is non-polar or weakly polar due to non-polar groups such as benzene ring and methyl group. According to the principle of "similar compatibility", it is difficult to dissolve in polar water. However, it is soluble in many organic solvents, such as ethanol, ether, dichloromethane, etc., because these organic solvents are also non-polar or weakly polar, similar in structure to the organic substance.
The density may be slightly higher than that of water, presumed to be 1.0-1.2 g/cm ³. The relative mass of chlorine atoms is larger, and the molecular mass is increased, resulting in a slightly denser density than that of water.
What are the chemical properties of 4- (chloromethyl) -1,2-dimethylbenzene?
4- (methoxy) -1,2-dimethoxybenzene. The chemical properties of this substance are as follows:
Its appearance is usually colorless to light yellow liquid, with a special aromatic taste. From the perspective of physical properties, physical constants such as boiling point and melting point have their fixed values under specific conditions, which are determined by intermolecular forces and structural characteristics.
In terms of chemical activity, the presence of benzene rings gives it the typical reactivity of aromatics. Benzene rings are rich in electrons and are vulnerable to attack by electrophilic reagents, and electrophilic substitution reactions occur, such as halogenation, nitrification, and sulfonation. Because the methoxy group is an electron donor group, the electron cloud density of the benzene ring can be increased, making the electrophilic substitution reaction easier to carry out, and the substitution check point is mostly in the ortho and para-position of the methoxy group.
At the same time, the oxygen atom in the methoxy group has lone pair electrons, which can participate in some coordination chemical reactions, or reactions such as ether bond breaking under specific conditions. For example, when there is a strong acid or high temperature and a specific reagent exists, the ether bond may cleave to form the corresponding phenolic and halogenated hydrocarbons or alcohols. In addition, due to the fact that the compound contains multiple methoxy groups, it can be used as a key intermediate in some organic synthesis conversions to build more complex organic molecular structures. Its chemical properties make it important in the organic synthesis of medicines, fragrances, materials, and many other fields. It can achieve the effective synthesis of the target product by ingeniously designing the reaction route.
Its appearance is usually colorless to light yellow liquid, with a special aromatic taste. From the perspective of physical properties, physical constants such as boiling point and melting point have their fixed values under specific conditions, which are determined by intermolecular forces and structural characteristics.
In terms of chemical activity, the presence of benzene rings gives it the typical reactivity of aromatics. Benzene rings are rich in electrons and are vulnerable to attack by electrophilic reagents, and electrophilic substitution reactions occur, such as halogenation, nitrification, and sulfonation. Because the methoxy group is an electron donor group, the electron cloud density of the benzene ring can be increased, making the electrophilic substitution reaction easier to carry out, and the substitution check point is mostly in the ortho and para-position of the methoxy group.
At the same time, the oxygen atom in the methoxy group has lone pair electrons, which can participate in some coordination chemical reactions, or reactions such as ether bond breaking under specific conditions. For example, when there is a strong acid or high temperature and a specific reagent exists, the ether bond may cleave to form the corresponding phenolic and halogenated hydrocarbons or alcohols. In addition, due to the fact that the compound contains multiple methoxy groups, it can be used as a key intermediate in some organic synthesis conversions to build more complex organic molecular structures. Its chemical properties make it important in the organic synthesis of medicines, fragrances, materials, and many other fields. It can achieve the effective synthesis of the target product by ingeniously designing the reaction route.
What are the synthesis methods of 4- (chloromethyl) -1,2-dimethylbenzene?
To prepare 4- (cyanomethyl) -1,2-dimethylbenzene, the following synthesis methods can be used:
First, with 1,2-dimethylbenzene as the starting material, halogen atoms are introduced into the benzene ring through halogenation reaction. For example, under the catalysis of an appropriate catalyst such as iron or iron salt, halogenated 1,2-dimethylbenzene can be obtained by reacting with bromine elemental substance. Then, the halogenated product undergoes a nucleophilic substitution reaction with sodium cyanide, and the halogen atoms are replaced by cyanomethyl to obtain the target product. In this process, the halogenation reaction needs to pay attention to the control of the reaction conditions so that the halogen atoms are selectively introduced into the appropriate position; the nucleophilic substitution reaction should pay attention to the toxicity of sodium cyanide, and the operation must be
Second, the intermediate containing cyanogen methyl can be prepared first. For example, hydroxyacetonitrile can be obtained by reacting formaldehyde with hydrocyanic acid, and then it can be converted into a suitable leaving group, such as converting the hydroxyl group into a halogen atom or a sulfonate group. At the same time, activate 1,2-dimethylbenzene to make it more prone to nucleophilic substitution. Next, let the activated 1,2-dimethylbenzene undergo nucleophilic substitution with the cyanogen-containing methyl intermediate, and form a carbon-carbon bond to achieve the synthesis of 4- (cyanomethyl) -1,2-dimethylbenzene. This path requires a multi-step reaction, each step must ensure a high yield, and the reaction conditions are more stringent, and the separation and purification of the intermediates in each step is also crucial.
Third, the method of metal organic chemistry is used, such as Grignard reagent or organolithium reagent. First, halogenated hydrocarbons containing cyanomethyl groups are prepared by appropriate methods to prepare the corresponding Grignard reagent or organolithium reagent. At the same time, 1,2-dimethylbenzene is reacted with suitable metal reagents to form an active intermediate. Then, the two undergo a coupling reaction to form the target product. The preparation and use of metal-organic reagents requires an anhydrous and oxygen-free environment, which requires high reaction equipment and operation skills. However, this method can effectively construct complex carbon-carbon frameworks, providing more selectivity for synthesis.
First, with 1,2-dimethylbenzene as the starting material, halogen atoms are introduced into the benzene ring through halogenation reaction. For example, under the catalysis of an appropriate catalyst such as iron or iron salt, halogenated 1,2-dimethylbenzene can be obtained by reacting with bromine elemental substance. Then, the halogenated product undergoes a nucleophilic substitution reaction with sodium cyanide, and the halogen atoms are replaced by cyanomethyl to obtain the target product. In this process, the halogenation reaction needs to pay attention to the control of the reaction conditions so that the halogen atoms are selectively introduced into the appropriate position; the nucleophilic substitution reaction should pay attention to the toxicity of sodium cyanide, and the operation must be
Second, the intermediate containing cyanogen methyl can be prepared first. For example, hydroxyacetonitrile can be obtained by reacting formaldehyde with hydrocyanic acid, and then it can be converted into a suitable leaving group, such as converting the hydroxyl group into a halogen atom or a sulfonate group. At the same time, activate 1,2-dimethylbenzene to make it more prone to nucleophilic substitution. Next, let the activated 1,2-dimethylbenzene undergo nucleophilic substitution with the cyanogen-containing methyl intermediate, and form a carbon-carbon bond to achieve the synthesis of 4- (cyanomethyl) -1,2-dimethylbenzene. This path requires a multi-step reaction, each step must ensure a high yield, and the reaction conditions are more stringent, and the separation and purification of the intermediates in each step is also crucial.
Third, the method of metal organic chemistry is used, such as Grignard reagent or organolithium reagent. First, halogenated hydrocarbons containing cyanomethyl groups are prepared by appropriate methods to prepare the corresponding Grignard reagent or organolithium reagent. At the same time, 1,2-dimethylbenzene is reacted with suitable metal reagents to form an active intermediate. Then, the two undergo a coupling reaction to form the target product. The preparation and use of metal-organic reagents requires an anhydrous and oxygen-free environment, which requires high reaction equipment and operation skills. However, this method can effectively construct complex carbon-carbon frameworks, providing more selectivity for synthesis.
What should be paid attention to when storing and transporting 4- (chloromethyl) -1,2-dimethylbenzene?
When storing and transporting 4- (methoxy) -1,2-dimethoxy benzene, many key points need to be paid attention to.
This substance has certain chemical activity. When storing, the first environment is dry. Due to moisture or moisture, it is easy to cause reactions such as hydrolysis, which affects the quality and stability. The warehouse should be selected in a high terrain, no water accumulation, and well ventilated to prevent the accumulation of humid air. Temperature is also critical, and it should be stored in a cool environment to avoid high temperature. High temperature will accelerate the movement of molecules, causing them to react with oxygen and other components in the air, or cause decomposition. Therefore, the warehouse should be equipped with temperature control facilities to control the temperature in a suitable range.
Furthermore, it needs to be stored in isolation. 4- (methoxy) -1,2-dimethoxy benzene should not be co-stored with strong oxidants, strong acids, strong bases, etc. Because the methoxy group in its chemical structure is connected to the benzene ring, it is easy to oxidize when it encounters strong oxidants, and react with strong acids and bases or substitution, ring opening, etc., causing material deterioration. The storage place should be clearly marked, indicating its characteristics and dangerous precautions, which is convenient for management personnel to identify and prevent.
When transporting, the packaging should be strong and reliable. Use special chemical packaging materials to ensure that the packaging is not damaged or leaked during transportation. At the same time, the transportation vehicle should be selected to meet safety standards and have anti-leakage, fire prevention and explosion-proof facilities. Transportation route planning is also important to avoid densely populated areas and environmentally sensitive areas, and reduce the risk of transportation accidents. Transport personnel should be professionally trained to be familiar with the characteristics of the substance and emergency treatment methods, and in the event of an emergency, they can respond quickly and scientifically to ensure the safety of personnel and the environment.
This substance has certain chemical activity. When storing, the first environment is dry. Due to moisture or moisture, it is easy to cause reactions such as hydrolysis, which affects the quality and stability. The warehouse should be selected in a high terrain, no water accumulation, and well ventilated to prevent the accumulation of humid air. Temperature is also critical, and it should be stored in a cool environment to avoid high temperature. High temperature will accelerate the movement of molecules, causing them to react with oxygen and other components in the air, or cause decomposition. Therefore, the warehouse should be equipped with temperature control facilities to control the temperature in a suitable range.
Furthermore, it needs to be stored in isolation. 4- (methoxy) -1,2-dimethoxy benzene should not be co-stored with strong oxidants, strong acids, strong bases, etc. Because the methoxy group in its chemical structure is connected to the benzene ring, it is easy to oxidize when it encounters strong oxidants, and react with strong acids and bases or substitution, ring opening, etc., causing material deterioration. The storage place should be clearly marked, indicating its characteristics and dangerous precautions, which is convenient for management personnel to identify and prevent.
When transporting, the packaging should be strong and reliable. Use special chemical packaging materials to ensure that the packaging is not damaged or leaked during transportation. At the same time, the transportation vehicle should be selected to meet safety standards and have anti-leakage, fire prevention and explosion-proof facilities. Transportation route planning is also important to avoid densely populated areas and environmentally sensitive areas, and reduce the risk of transportation accidents. Transport personnel should be professionally trained to be familiar with the characteristics of the substance and emergency treatment methods, and in the event of an emergency, they can respond quickly and scientifically to ensure the safety of personnel and the environment.
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