Linshang Chemical
PRODUCTS
3-Chloro-4-Methylbenzeneboronic Acid
Linshang Chemical
|
HS Code |
940721 |
| Name | 3-Chloro-4-Methylbenzeneboronic Acid |
| Chemical Formula | C7H8BClO2 |
| Molecular Weight | 170.4 |
| Appearance | White to off - white solid |
| Melting Point | 147 - 152 °C |
| Solubility In Water | Slightly soluble |
| Solubility In Organic Solvents | Soluble in common organic solvents like ethanol, dichloromethane |
| Pka | Around 8 - 9 |
| Density | N/A (no typical density data found in simple form) |
| Boiling Point | Decomposes before boiling |
| Cas Number | 913835-53-1 |
| Stability | Stable under normal conditions, avoid strong oxidizing agents |
As an accredited 3-Chloro-4-Methylbenzeneboronic Acid factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | 100g of 3 - chloro - 4 - methylbenzeneboronic Acid in a sealed, labeled chemical - grade bottle. |
| Storage | 3 - Chloro - 4 - methylbenzeneboronic acid should be stored in a cool, dry place, away from direct sunlight. Keep it in a tightly sealed container to prevent moisture absorption and contact with air, which could lead to degradation. Store separately from incompatible substances like strong oxidizing agents. Ideal storage temperature is around 2 - 8°C for long - term stability. |
| Shipping | 3 - Chloro - 4 - methylbenzeneboronic acid is shipped in well - sealed, corrosion - resistant containers. It's transported under proper conditions, ensuring protection from moisture, heat, and physical damage during transit to maintain its integrity. |
Competitive 3-Chloro-4-Methylbenzeneboronic Acid prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please call us at +8615365006308 or mail to info@alchemist-chem.com.
We will respond to you as soon as possible.
Tel: +8615365006308
Email: info@alchemist-chem.com
Where to Buy 3-Chloro-4-Methylbenzeneboronic Acid in China?
As a trusted 3-Chloro-4-Methylbenzeneboronic Acid manufacturer, we deliver:
Factory-Direct Value: Competitive pricing with no middleman markups, tailored for bulk orders and project-scale requirements.
Technical Excellence: Precision-engineered solutions backed by R&D expertise, from formulation to end-to-end delivery.
Whether you need industrial-grade quantities or specialized customizations, our team ensures reliability at every stage—from initial specification to post-delivery support.
As a leading 3-Chloro-4-Methylbenzeneboronic Acid supplier, we deliver high-quality products across diverse grades to meet evolving needs, empowering global customers with safe, efficient, and compliant chemical solutions.
What is the chemical structure of 3-chloro-4-methylbenzeneboronic Acid?
The chemical structure of 3-chloro-4-methylbenzeneboronic Acid is also. This compound belongs to phenylboronic acid, which is composed of benzene ring, chlorine atom, methyl group and boric acid group.
The benzene ring is a six-membered carbon ring with a conjugated π electron system, which is the core framework of the molecule. The carbon positions on the ring are numbered in order to determine the positions of the substituents.
At the third position of the benzene ring, it is connected to a chlorine atom. Chlorine atoms, as well as halogen elements, have high electronegativity, which can affect the electron cloud distribution and chemical properties of molecules, reduce the density of electron clouds in adjacent and para-sites, and change the activity of electrophilic substitution of benzene rings.
At the 4th position of the benzene ring, it is connected to a methyl group. Methyl is the power supply group, which can increase the electron cloud density of the benzene ring. Due to the superconjugation effect, it has a stabilizing effect on the benzene ring, and also affects the spatial structure and reactivity of the whole molecule.
Boric acid group (-B (OH) -2) is connected to the benzene ring, which is an important functional group of this compound. Boron atoms are electron-deficient, and boric acid groups can participate in a variety of organic reactions, such as condensation reactions with compounds containing hydroxyl groups and amino groups. They are commonly used in reactions to construct carbon-carbon bonds and carbon-hetero bonds, such as Suzuki coupling reaction. This is an important method for organic synthesis to construct carbon-carbon bonds.
In summary, the chemical structure of 3-chloro-4-methylphenylboronic acid, due to the synergistic effect of different substituents on the benzene ring, endows the compound with unique physical and chemical properties, and has a wide range of uses in the field of organic synthesis.
The benzene ring is a six-membered carbon ring with a conjugated π electron system, which is the core framework of the molecule. The carbon positions on the ring are numbered in order to determine the positions of the substituents.
At the third position of the benzene ring, it is connected to a chlorine atom. Chlorine atoms, as well as halogen elements, have high electronegativity, which can affect the electron cloud distribution and chemical properties of molecules, reduce the density of electron clouds in adjacent and para-sites, and change the activity of electrophilic substitution of benzene rings.
At the 4th position of the benzene ring, it is connected to a methyl group. Methyl is the power supply group, which can increase the electron cloud density of the benzene ring. Due to the superconjugation effect, it has a stabilizing effect on the benzene ring, and also affects the spatial structure and reactivity of the whole molecule.
Boric acid group (-B (OH) -2) is connected to the benzene ring, which is an important functional group of this compound. Boron atoms are electron-deficient, and boric acid groups can participate in a variety of organic reactions, such as condensation reactions with compounds containing hydroxyl groups and amino groups. They are commonly used in reactions to construct carbon-carbon bonds and carbon-hetero bonds, such as Suzuki coupling reaction. This is an important method for organic synthesis to construct carbon-carbon bonds.
In summary, the chemical structure of 3-chloro-4-methylphenylboronic acid, due to the synergistic effect of different substituents on the benzene ring, endows the compound with unique physical and chemical properties, and has a wide range of uses in the field of organic synthesis.
What are the main uses of 3-chloro-4-methylbenzeneboronic Acid?
3-Chloro-4-methylphenylboronic acid has a wide range of uses. It is a key intermediate in the field of organic synthesis. First, it plays a significant role in the reaction of building carbon-carbon bonds. For example, in the coupling reaction of Suzuki, it can efficiently form biphenyls or alkenyl benzene compounds with halogenated aromatics or olefins under palladium catalysis. Such products are widely used in drug development and materials science. For example, some drug molecules with specific pharmacological activities and materials with special photoelectric properties are synthesized by this reaction.
Second, it is also indispensable in the reaction of building carbon-heteroatomic bonds. Like the reaction with nucleophiles containing nitrogen, oxygen, sulfur and other heteroatoms, many organic compounds containing heteroatoms can be prepared. These compounds have important applications in pesticide, fragrance and other industries. In the field of pesticides, it can synthesize pesticides with high insecticidal and bactericidal activities; in the fragrance industry, it can prepare fragrance components with unique aroma.
Third, because of the presence of boron atoms in its structure, it gives it unique electronic properties and coordination ability. Therefore, in the field of metal-organic chemistry, it can be used as a ligand to form stable complexes with metal ions. These complexes exhibit unique catalytic activity and selectivity in catalytic reactions, providing a more efficient and precise catalytic system for organic synthesis reactions.
Fourth, in the field of materials science, polymer materials or organic-inorganic hybrid materials synthesized by 3-chloro-4-methylphenylboronic acid have unique physical and chemical properties. For example, the optical properties, electrical properties, and thermal stability of some materials have been improved, and they have great application potential in the fields of optoelectronic devices such as Light Emitting Diode and solar cells.
Second, it is also indispensable in the reaction of building carbon-heteroatomic bonds. Like the reaction with nucleophiles containing nitrogen, oxygen, sulfur and other heteroatoms, many organic compounds containing heteroatoms can be prepared. These compounds have important applications in pesticide, fragrance and other industries. In the field of pesticides, it can synthesize pesticides with high insecticidal and bactericidal activities; in the fragrance industry, it can prepare fragrance components with unique aroma.
Third, because of the presence of boron atoms in its structure, it gives it unique electronic properties and coordination ability. Therefore, in the field of metal-organic chemistry, it can be used as a ligand to form stable complexes with metal ions. These complexes exhibit unique catalytic activity and selectivity in catalytic reactions, providing a more efficient and precise catalytic system for organic synthesis reactions.
Fourth, in the field of materials science, polymer materials or organic-inorganic hybrid materials synthesized by 3-chloro-4-methylphenylboronic acid have unique physical and chemical properties. For example, the optical properties, electrical properties, and thermal stability of some materials have been improved, and they have great application potential in the fields of optoelectronic devices such as Light Emitting Diode and solar cells.
What are the synthetic methods of 3-chloro-4-methylbenzeneboronic Acid?
There are several common methods for preparing 3-chloro-4-methylphenylboronic acid.
First, 3-chloro-4-methylbromobenzene is used as the starting material. First, the Grignard reaction occurs with magnesium chips in anhydrous ether or tetrahydrofuran solvent under low temperature and inert gas protection. Magnesium atoms are inserted between carbon-bromine bonds to form 3-chloro-4-methylphenyl magnesium bromide Grignard reagent. This process requires strict control of the reaction temperature and the anhydrous and oxygen-free environment of the system, otherwise the Grignard reagent is easy to decompose. Subsequently, the prepared Grignard reagent is slowly added dropwise to borate esters (such as trimethyl borate) at low temperature. After nucleophilic substitution, boron atoms replace some groups in the orthoborate to obtain the corresponding borate ester intermediates. Finally, the intermediates are hydrolyzed under acidic or basic conditions to obtain 3-chloro-4-methylphenylboronic acid. When hydrolyzing, pay attention to mild conditions to avoid overreaction or decomposition of the product.
Second, 3-chloro-4-methyliodobenzene is used as raw material and prepared by metal-catalyzed boronation. In the presence of transition metal catalysts and ligands such as palladium and nickel, 3-chloro-4-methyliodobenzene reacts with boronation reagents such as bis (pinacol) diboron in suitable solvents (such as dioxane, toluene, etc.) under the action of a certain temperature and base. The metal catalyst is first oxidized with iodobenzene to activate the carbon-iodine bond, then metallized with the boronation reagent, and the boron group is introduced into the phenyl ring. Finally, it is eliminated by reduction to form 3-chloro-4-methylphenylboronic acid pinacol ester. The ester is then hydrolyzed to obtain the target product 3-chloro-4-methylphenylboronic acid. This method has good selectivity, but the cost of catalysts and ligands is high, and the reaction conditions need to be carefully regulated.
Another method uses 3-chloro-4-methylaniline as the starting material. First, it is diazotized to form a diazonium salt. Then, using the activity of diazonium salts, it reacts with boron reagents (such as borous acid or its salts) to realize the substitution of boron groups to diazonium groups, thereby preparing 3-chloro-4-methylphenylboronic acid. This route has a little more steps, and the diazotization reaction needs to strictly control the temperature and reaction conditions, otherwise side reactions will easily occur, affecting the yield and purity.
First, 3-chloro-4-methylbromobenzene is used as the starting material. First, the Grignard reaction occurs with magnesium chips in anhydrous ether or tetrahydrofuran solvent under low temperature and inert gas protection. Magnesium atoms are inserted between carbon-bromine bonds to form 3-chloro-4-methylphenyl magnesium bromide Grignard reagent. This process requires strict control of the reaction temperature and the anhydrous and oxygen-free environment of the system, otherwise the Grignard reagent is easy to decompose. Subsequently, the prepared Grignard reagent is slowly added dropwise to borate esters (such as trimethyl borate) at low temperature. After nucleophilic substitution, boron atoms replace some groups in the orthoborate to obtain the corresponding borate ester intermediates. Finally, the intermediates are hydrolyzed under acidic or basic conditions to obtain 3-chloro-4-methylphenylboronic acid. When hydrolyzing, pay attention to mild conditions to avoid overreaction or decomposition of the product.
Second, 3-chloro-4-methyliodobenzene is used as raw material and prepared by metal-catalyzed boronation. In the presence of transition metal catalysts and ligands such as palladium and nickel, 3-chloro-4-methyliodobenzene reacts with boronation reagents such as bis (pinacol) diboron in suitable solvents (such as dioxane, toluene, etc.) under the action of a certain temperature and base. The metal catalyst is first oxidized with iodobenzene to activate the carbon-iodine bond, then metallized with the boronation reagent, and the boron group is introduced into the phenyl ring. Finally, it is eliminated by reduction to form 3-chloro-4-methylphenylboronic acid pinacol ester. The ester is then hydrolyzed to obtain the target product 3-chloro-4-methylphenylboronic acid. This method has good selectivity, but the cost of catalysts and ligands is high, and the reaction conditions need to be carefully regulated.
Another method uses 3-chloro-4-methylaniline as the starting material. First, it is diazotized to form a diazonium salt. Then, using the activity of diazonium salts, it reacts with boron reagents (such as borous acid or its salts) to realize the substitution of boron groups to diazonium groups, thereby preparing 3-chloro-4-methylphenylboronic acid. This route has a little more steps, and the diazotization reaction needs to strictly control the temperature and reaction conditions, otherwise side reactions will easily occur, affecting the yield and purity.
What are the physical properties of 3-chloro-4-methylbenzeneboronic Acid?
3-Chloro-4-methylphenylboronic acid, its physical properties are as follows:
This substance is mostly in a solid state at room temperature. Looking at its appearance, it is usually white to a powdery white, with a fine texture, like finely crushed frost and snow. Under sunlight, it may appear slightly shiny.
Its melting point is in a specific range, about [X] ° C to [X] ° C. When heated, the solid phase will gradually melt into a liquid phase, just like ice and snow melting when warm. In terms of solubility, it has a certain solubility in common organic solvents such as ethanol and ether, just like fine sand entering water, which can gradually disperse into it to form a uniform system; however, in water, the solubility is relatively limited, only a small amount can be dissolved, just like stones thrown into a shallow stream, most of which are still submerged in the water.
This substance has a moderate density, which is different from common light and heavy metals. Under specific experimental conditions, its density value can be obtained by accurate measurement. This value is quite meaningful for considering its fluctuation in different media and the volume change when mixed with other substances. And its stability is acceptable. Under conventional temperature and humidity conditions, it can maintain the stability of its own chemical structure, and it is not easy to undergo violent chemical reactions and cause deterioration by itself. However, in case of extreme chemical environments such as strong acids and bases, its stability may be affected, and its structure may change.
This substance is mostly in a solid state at room temperature. Looking at its appearance, it is usually white to a powdery white, with a fine texture, like finely crushed frost and snow. Under sunlight, it may appear slightly shiny.
Its melting point is in a specific range, about [X] ° C to [X] ° C. When heated, the solid phase will gradually melt into a liquid phase, just like ice and snow melting when warm. In terms of solubility, it has a certain solubility in common organic solvents such as ethanol and ether, just like fine sand entering water, which can gradually disperse into it to form a uniform system; however, in water, the solubility is relatively limited, only a small amount can be dissolved, just like stones thrown into a shallow stream, most of which are still submerged in the water.
This substance has a moderate density, which is different from common light and heavy metals. Under specific experimental conditions, its density value can be obtained by accurate measurement. This value is quite meaningful for considering its fluctuation in different media and the volume change when mixed with other substances. And its stability is acceptable. Under conventional temperature and humidity conditions, it can maintain the stability of its own chemical structure, and it is not easy to undergo violent chemical reactions and cause deterioration by itself. However, in case of extreme chemical environments such as strong acids and bases, its stability may be affected, and its structure may change.
What are the precautions for 3-chloro-4-methylbenzeneboronic Acid in storage and transportation?
3-Chloro-4-methylphenylboronic acid requires attention to many matters when storing and transporting. This is an organic compound with specific chemical properties, which is related to storage and transportation safety.
Let's talk about storage first. First, it should be placed in a cool and dry place. Because the substance is quite sensitive to humidity and temperature, high temperature or high humidity environment may cause it to deteriorate. Under high temperature, it may cause chemical reactions, which will damage the purity; in humid environment, or hygroscopic hydrolysis, which will affect the quality. Second, it must be sealed and stored. This is to prevent it from contacting with oxygen, moisture and other components in the air. Once it comes into contact, or reacts such as oxidation, it will change the chemical structure and properties. Third, it should be stored separately from oxidizing agents and alkalis. Due to its active chemical properties, it can mix with these substances or react violently, posing a potential safety hazard.
As for transportation, first of all, it is necessary to choose suitable packaging materials according to their chemical characteristics. The packaging used should be strong and well sealed to prevent leakage. For example, after packing in glass bottles or plastic bottles, it should be placed in a sturdy outer packaging box with cushioning materials. Secondly, during transportation, temperature control and shock absorption should be used. Avoid sunlight exposure and high temperature environments, and prevent substances from being unstable due to excessive temperature. Drive smoothly when driving, absorb shock and collisions, and cause internal reactions due to severe vibration. Furthermore, transportation personnel need to be professionally trained to be familiar with the characteristics of the substance and emergency treatment methods. Once there is a leak during transportation, it can be properly disposed of in time to reduce hazards. Overall, the storage and transportation of 3-chloro-4-methylphenylboronic acid requires strict operation in accordance with regulations to ensure safety and quality.
Let's talk about storage first. First, it should be placed in a cool and dry place. Because the substance is quite sensitive to humidity and temperature, high temperature or high humidity environment may cause it to deteriorate. Under high temperature, it may cause chemical reactions, which will damage the purity; in humid environment, or hygroscopic hydrolysis, which will affect the quality. Second, it must be sealed and stored. This is to prevent it from contacting with oxygen, moisture and other components in the air. Once it comes into contact, or reacts such as oxidation, it will change the chemical structure and properties. Third, it should be stored separately from oxidizing agents and alkalis. Due to its active chemical properties, it can mix with these substances or react violently, posing a potential safety hazard.
As for transportation, first of all, it is necessary to choose suitable packaging materials according to their chemical characteristics. The packaging used should be strong and well sealed to prevent leakage. For example, after packing in glass bottles or plastic bottles, it should be placed in a sturdy outer packaging box with cushioning materials. Secondly, during transportation, temperature control and shock absorption should be used. Avoid sunlight exposure and high temperature environments, and prevent substances from being unstable due to excessive temperature. Drive smoothly when driving, absorb shock and collisions, and cause internal reactions due to severe vibration. Furthermore, transportation personnel need to be professionally trained to be familiar with the characteristics of the substance and emergency treatment methods. Once there is a leak during transportation, it can be properly disposed of in time to reduce hazards. Overall, the storage and transportation of 3-chloro-4-methylphenylboronic acid requires strict operation in accordance with regulations to ensure safety and quality.
Scan to WhatsApp
