O-Chloroformylbenzene

Linshang Chemical

Specifications

HS Code

515741

Chemical Formula C8H5ClO2
Molar Mass 168.577 g/mol
Appearance Probably a colorless to pale - yellow liquid
Boiling Point Data might vary, but typically in the range of organic acid chlorides (e.g., around 220 - 230 °C under normal pressure, approximate)
Density Higher than water, likely around 1.3 - 1.4 g/cm³ (approximate)
Solubility Insoluble in water, soluble in common organic solvents like dichloromethane, toluene
Odor Pungent, characteristic of acyl chlorides
Reactivity Reactive towards nucleophiles, undergoes hydrolysis in water, reacts with alcohols to form esters, with amines to form amides
Hazard Corrosive, can cause severe burns to skin and eyes, harmful if inhaled or ingested

As an accredited O-Chloroformylbenzene factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

Packing & Storage
Packing 1 kg of O - chloroformylbenzene packaged in a sealed, corrosion - resistant container.
Storage O - chloroformylbenzene should be stored in a cool, dry, well - ventilated area away from sources of ignition and heat. Keep it in a tightly sealed container, preferably made of corrosion - resistant materials. Store it separately from incompatible substances like oxidizing agents, bases, and reactive metals to prevent dangerous reactions. Regularly check for any signs of leakage or degradation.
Shipping O - chloroformylbenzene is a chemical that requires careful shipping. It should be in well - sealed containers, protected from heat and direct sunlight. Shipments must comply with hazardous chemical transport regulations to ensure safety during transit.
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O-Chloroformylbenzene O-Chloroformylbenzene
General Information
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Frequently Asked Questions

As a leading O-Chloroformylbenzene 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 chemistry of O-chloroformylbenzene?
O-chloroformylbenzene (O-chloroformylbenzene) is a class of organic compounds. It has unique chemical properties and has a wide range of uses in the field of organic synthesis.
In this substance, the chloroformylbenzene group (-COCl) is attached to the ortho-position of the benzene ring. The chloroformylbenzene group is active and easy to cause many chemical reactions.
The first is its hydrolysis reaction. When exposed to water, the chloroformylbenzene group can be hydrolyzed into a carboxyl group (-COOH) to form o-benzoic acid. The mechanism of this reaction is that the hydroxyl group (-OH) in the water molecule attacks the carbonyl carbon of the chloroformyl group, and the chlorine atom leaves, thus forming a The hydrolysis reaction formula can be expressed as: O - chloroformylbenzene + H 2O O → o - benzoic acid + HCl.
Secondly, the ammonolysis reaction is also an important type of reaction. When interacted with ammonia (NH 🥰), the nitrogen atom in the ammonia attacks the carbonyl carbon of the chloroformyl group, and the chlorine atom leaves to form o-benzamide. The reaction formula is: O - chloroformylbenzene + NH 🥰 → o - benzamide + HCl.
Furthermore, the alcoholysis reaction can also occur. When it meets with an alcohol (R-OH), the alkoxy group (-OR) of the alcohol replaces the chlorine atom of the chloroformyl group to form a phthalate. This reaction is often the way to prepare esters in organic synthesis. The reaction formula is: O-chloroformylbenzene + R-OH → o-benzoic acid ester + HCl.
In addition, the presence of O-chloroformylbenzene also has some characteristic reactions of the benzene ring. For example, it can undergo electrophilic substitution with electrophilic reagents, and other substituents can be introduced into the benzene ring. Because chloroformyl is an electron-withdrawing group, it is a meta-site localization group, and the electrophilic substitution reaction mainly occurs in the interposition of the benzene ring.
In summary, the presence of O-chloroformylbenzene chloroformyl groups and benzene rings has active and diverse chemical properties, and plays a key role in the field of organic synthetic chemistry. It can prepare a variety of organic compounds through various reactions.
What are the common uses of O-chloroformylbenzene?
O-chloroformylbenzene is o-chloroformylbenzene, and its common uses are as follows:
In the field of organic synthesis, it has a wide range of uses. First, it can be used as a key intermediate. For example, when preparing a drug molecule with a specific structure, it can react with many nucleophilic reagents, such as alcohols and amines, due to its active reactivity of chloroformylbenzene groups. Reacting with alcohols can generate corresponding ester compounds, which play an important role in the synthesis of fragrances, plasticizers, etc. Reacting with amines can form amide bonds, and amide structures are widely found in various drugs, bioactive molecules and polymer materials.
Second, it also plays a role in the field of materials science. It can participate in the polymerization reaction of polymers. By ingeniously designing the reaction conditions and the ratio of monomers, its structural units are introduced into the main chain or side chain of the polymer, thereby endowing the polymer material with unique properties, such as improving the solubility, thermal stability and mechanical properties of the material.
Third, in the preparation of fine chemicals, o-chloroformylbenzene can be used to synthesize dyes and pigments with special structures. Due to the special structure of benzene ring and chloroformyl group, after subsequent chemical reactions, the prepared dyes and pigments may have excellent characteristics such as unique color, light resistance and chemical stability, which meet the needs of different industrial and life scenes for color materials.
What is O-chloroformylbenzene synthesis method?
O-chloroformylbenzene, that is, o-chloroformylbenzene, can be prepared by reacting phthalic acid with a chlorinating agent. The method is as follows:
First take an appropriate amount of phthalic acid and place it in a clean reactor. Choose another suitable chlorinating agent, such as dichlorosulfoxide ($SOCl_ {2} $), this chlorinating agent is quite active and can effectively promote the reaction. Slowly add dichlorosulfoxide to the reactor containing phthalic acid, and add a little catalyst, such as N, N-dimethylformamide (DMF), which can speed up the reaction rate.
During the reaction process, pay close attention to temperature changes. The temperature should be controlled within a moderate range, generally between 50 and 80 degrees Celsius. This temperature range can not only ensure the smooth occurrence of the reaction, but also avoid too many side reactions. As the reaction proceeds, dichlorosulfoxide gradually reacts with phthalic acid to generate O-chloroformylbenzene, sulfur dioxide ($SO_ {2} $) and hydrogen chloride ($HCl $) gases.
After the reaction is completed, because the boiling point of dichlorosulfoxide is relatively low, the unreacted chlorinated agent can be removed by distillation. The remaining product still contains impurities, and then further purification by means of rectification can obtain O-chloroformylbenzene with higher purity. This preparation method is relatively simple to operate and has a considerable yield, which is widely used in industrial production and laboratory preparation.
O-chloroformylbenzene What are the precautions during storage and transportation?
O-chloroformylbenzene, that is, o-chloroformylbenzene, is highly toxic and corrosive. When storing and transporting, the following things must be paid attention to:
First, the storage place should be cool, dry and well ventilated, away from fire and heat sources. Because it is easy to decompose when heated, it releases toxic gases, so the temperature should be controlled at a low level to prevent accidents.
Second, the storage container must be made of corrosion-resistant materials, such as glass or specific plastic materials. Because the substance is highly corrosive, ordinary containers are prone to erosion, causing the risk of leakage and endangering the safety of the surrounding area.
Third, strictly isolated from oxidants, alkalis, etc. This is because the substance is mixed with an oxidizing agent, or causes a violent reaction, or even explodes; when it encounters alkalis, it will also cause a chemical reaction, causing the substance to deteriorate and complicate with danger.
Fourth, when transporting, special transportation vehicles and equipment should be used in accordance with relevant regulations. Vehicles should be equipped with leakage emergency treatment equipment and protective equipment to prevent leakage accidents during transportation.
Fifth, transporters must undergo professional training and be familiar with the dangerous characteristics of the substance and emergency treatment methods. The loading and unloading process must be handled lightly, and it is strictly forbidden to drop, heavy pressure and friction, so as not to damage the container and cause leakage.
Sixth, whether it is stored or transported, obvious warning signs should be set up to remind surrounding personnel to pay attention to prevention. At the same time, develop a comprehensive emergency plan so that in the event of an accident, rescue and treatment can be carried out quickly and effectively, minimizing the harm.
O-chloroformylbenzene impact on the environment and human health
The impact of O-chloroformylbenzene on the environment and human health is quite critical and should be examined in detail.
At the environmental level, it may pose a variety of hazards. If this substance flows into the water body, it may be toxic to aquatic organisms due to its certain chemical activity. Aquatic organisms have unique physiological functions, and O-chloroformylbenzene may interfere with their life activities such as respiration, feeding, and reproduction. For example, the gill tissue of fish may be damaged due to exposure to this substance, causing gas exchange to be blocked and eventually asphyxiation. In soil, it may affect the soil microbial community. Soil microorganisms are of great significance to soil fertility and material circulation. The presence of O-chloroformylbenzene may change the species and quantity of microorganisms, thereby affecting the soil ecological balance and hindering plant growth. And it may have a certain persistence in the environment, difficult to rapidly degrade, will remain for a long time, and continue to harm the ecology.
It is related to human health, and O-chloroformylbenzene also poses a risk. Inhalation through the respiratory tract can irritate the mucosa of the respiratory tract, causing symptoms such as cough, asthma, and breathing difficulties. Its chemical structure may cause damage to the epithelial cells of the respiratory tract and destroy the respiratory defense barrier. If it comes into contact with the skin or penetrates the skin, it can damage the skin cells, causing redness, swelling, itching, allergies, etc. What's more, long-term exposure may be potentially carcinogenic. After it enters the human body, it may interact with the genetic material in the cells, causing genetic mutations and increasing the risk of cancer. Therefore, when manufacturing and using this substance, strict protective measures should be taken to reduce its harm to the environment and human body.
What is the chemistry of O-chloroformylbenzene?
O-chloroformylbenzene is o-chloroformylbenzene, which has special chemical properties. Its molecules contain chloroformyl groups and benzene rings, and the activity of chloroformyl groups is high, which makes the chemical performance of this substance unique.
From the perspective of nucleophilic substitution, chlorine atoms in chloroformyl groups are active and easy to be attacked by nucleophiles. In case of alcohols, chlorine atoms can be replaced by alkoxy groups to form esters. If reacted with ethanol, through the nucleophilic substitution process, chlorine is replaced by ethoxy to obtain o-ethoxy formylbenzene. When reacted with amine nucleophiles, chlorine can be replaced by amino groups to form amide compounds. Like reacting with methylamine, methylamine nitrogen atoms attack chloroformyl carbons, and chlorine leaves to obtain o-methylamino formylbenz
In terms of hydrolysis characteristics, in the presence of water and a suitable catalyst, chloroformyl groups are prone to hydrolysis. In hydrolysis, the hydroxyl groups of water attack chloroformyl carbons, and chlorine is separated in the form of chloride ions to form o-carboxylbenzene. This reaction can occur in acidic or alkaline environments, and hydrolysis is easier under alkaline conditions, due to the strong nucleophilicity of hydroxide.
The phenyl ring also affects its properties. As an electron-rich system, electrophilic substitution can occur. However, under suitable conditions and catalysts, electrophilic substitution reactions such as halogenation and nitrification can still occur, and the substituents mainly enter the benzene ring intersite.
In short, O-chloroformylbenzene has a wide range of uses in the field of organic synthesis due to the interaction between chloroformyl groups and benzene rings.
What are the main uses of O-chloroformylbenzene?
O-chloroformylbenzene is a crucial raw material in organic synthesis and has a wide range of uses.
First, it plays a key role in the field of pharmaceutical synthesis. It is used as the starting material for the preparation of many drugs. Through a series of chemical reactions, molecular structures with specific pharmacological activities can be constructed. For example, some drug intermediates for the treatment of cardiovascular diseases can be prepared through clever reaction steps. By precisely regulating the reaction conditions and processes, the efficiency and purity of drug synthesis can be effectively improved.
Second, it also plays an important role in pesticide synthesis. Based on O-chloroformylbenzene, a variety of high-efficiency pesticides can be synthesized. It can participate in the construction of the core structure of pesticide molecules, giving pesticides good insecticidal, bactericidal or herbicidal properties. With a well-designed synthesis path, pesticide products that have significant control effects on specific crop diseases and pests can be prepared, thus helping to increase agricultural yield.
Third, it is also used in the field of materials science. It can be used as a monomer for synthesizing special functional polymer materials. By polymerizing with other monomers, polymer materials with unique properties can be prepared, such as some materials with good thermal stability or optical properties, which are widely used in many fields such as electronics and optics.
Fourth, it is also a commonly used raw material in the synthesis of fine chemicals. It can be used to synthesize various types of fragrances, dyes and other fine chemicals. Through specific chemical reactions, fine chemicals are endowed with unique aroma or color characteristics to meet the diverse needs of different industries for fine chemicals.
In short, O-chloroformylbenzene is indispensable in many chemical fields and plays an important role in promoting the development of related industries.
What are O-chloroformylbenzene synthesis methods?
There are several methods for making O-chloroformyl benzene. One method is to use phthalic anhydride to interact with a chlorinating agent. First, take phthalic anhydride and place it in an adapter. This phthalic anhydride is an organic compound, which is solid in shape and white in color and has a specific crystal structure. Then, choose a suitable chlorinating agent, such as thionyl chloride ($SOCl_2 $), and slowly add it to the container containing phthalic anhydride. This chlorinating agent, thionyl chloride, is a colorless or light yellow smoky liquid at room temperature, with a pungent taste. When the two meet, a chemical reaction occurs. During the reaction, the structure of the phthalic anhydride changes, and the anhydride group interacts with the chlorine atom in the chlorinating agent, gradually converting into O-chloroformyl benzene. After the reaction is completed, the pure O-chlorobenzene can be obtained by distillation, purification and other steps.
Another method can be started from o-chlorobenzoic acid. O-chlorobenzoic acid is also an organic compound, or in the form of white to light yellow crystalline powder. React o-chlorobenzoic acid with phosgene ($COCl_2 $) under suitable conditions. Phosgene is a colorless and highly toxic gas at room temperature, with a humus smell. This reaction needs to be carried out at a suitable temperature and in the presence of a catalyst. In the reaction system, the carboxyl group of o-chlorobenzoic acid reacts with the chloroformyl group in phosgene to form O-chlorobenzene. After the reaction is completed, it is separated and refined to obtain a high-purity target product.
Others use o-hydroxybenzaldehyde as the starting material. O-hydroxybenzaldehyde is a colorless to light yellow liquid with a special aroma. First, the o-hydroxybenzaldehyde is protected by an appropriate protective group, and then reacted with a reagent containing chloroformyl groups. After the reaction is completed, the protective group is removed, and O-chloroformylbenzene can also be prepared. However, this process is more complicated, requiring multiple steps, and each step requires fine control of the reaction conditions to achieve the ideal yield and purity.
O-chloroformylbenzene need to pay attention to when storing and transporting
O-chloroformylbenzene (O-chloroformylbenzene) is an organic compound with specific chemical properties and activities. When storing and transporting, be careful to pay attention to many points.
First words storage. First, because of its active nature, it is easy to react with other substances, so it should be placed in a cool, dry and well-ventilated place. Do not store in high temperature or humid places to prevent decomposition or deterioration due to environmental factors. Second, it needs to be stored separately from oxidants, reducing agents, bases and other substances. This is because O-chloroformylbenzene encounters with the above substances, which is likely to trigger violent chemical reactions and cause safety accidents. Third, storage containers also need to be carefully selected. It is advisable to use corrosion-resistant materials, such as glass or specific plastic containers, and the containers must be tightly sealed to avoid their volatilization and escape, pollute the environment, and prevent reactions with air components.
Times and transportation. During transportation, ensure that the packaging is stable. Packaging materials must be able to effectively prevent leakage caused by vibration and collision. And transportation vehicles should also be kept clean and free of impurities that may react with them. Furthermore, transportation personnel must be professionally trained and familiar with the characteristics of O-chloroformyl benzene and emergency treatment methods. If there is an accident such as leakage during transportation, they can respond quickly and correctly to reduce the harm. At the same time, the transportation process should strictly follow relevant regulations and standards, and complete transportation procedures to ensure compliance with transportation. In this way, the safety of O-chloroformyl benzene during storage and transportation can be guaranteed, accidents can be avoided, and unnecessary losses can be reduced.
O-chloroformylbenzene impact on the environment and human health
O-chloroformylbenzene, the impact of this substance on the environment and human health, is quite important, I should let you know in detail.
At the environmental end, if O-chloroformylbenzene is released outside, the first to bear the brunt is the atmosphere. It is volatile, or participates in photochemical reactions in the atmosphere, causing adverse phenomena such as smog. Descending in water bodies, due to hydrophobicity, it is easy to be adsorbed by suspended particles and settle in bottom mud. In soil, it can be slowly decomposed by microorganisms, but its process or secondary pollutants. And because of its toxicity, or endanger soil organisms, such as earthworms, it breaks the soil ecological balance.
As for human health, O-chloroformylbenzene is irritating. If inhaled through the respiratory tract, it can cause discomfort to the throat and trachea, causing coughing, asthma, and even damage lung function. If the skin comes into contact with it, it may cause redness, swelling, itching, and burns. If taken inadvertently, it will hurt the stomach, cause nausea, vomiting, and abdominal pain, and in severe cases endanger life. Long-term exposure to this environment may increase the risk of cancer, because it may be a potential carcinogen, damaging human body cell DNA and causing cell mutation.
Therefore, the use, storage, and transportation of O-chloroformylbenzene must be rigorous to prevent it from leaking into the environment and protect natural ecology and personal safety.