2,3-dibromo-thiophene

2% 2C3-dibromosuccinic acid is an organic compound with a wide range of main uses.
In the field of organic synthesis, this compound is a key intermediate. Taking the preparation of drug molecules with specific structures as an example, by virtue of the bromine atoms and carboxyl groups they contain, more complex molecular structures can be constructed through many organic reactions, such as nucleophilic substitution reactions. For example, in the synthesis of some heterocyclic compounds with special physiological activities, 2% 2C3-dibromosuccinic acid can act as a starting material. By replacing the bromine atom with a specific nucleophilic reagent, the desired functional group is introduced, and the synthesis of the target compound can be achieved.
In the field of materials science, it can also play an important role. Because the carboxyl group in the molecular structure can participate in the polymerization reaction, it can be used to prepare polymer materials with special properties. For example, polyester polymers are formed by condensation reaction with compounds containing hydroxyl groups, and the presence of bromine atoms can endow the materials with certain flame retardant properties, so that the obtained polymer materials show application potential in fire protection and other fields.
In addition, in the research and teaching of organic chemistry, 2% 2C3-dibromosuccinic acid, as a typical polyfunctional compound, is a common substance for explaining the mechanism of organic reactions and demonstrating reaction operations. Through the research and practice of various reactions it participates in, it is helpful for researchers and students to deeply understand the basic theory and reaction laws of organic chemistry.

2% 2C3-dibromosuccinic acid is an important intermediate in organic synthesis. Although its synthesis method is not recorded in ancient times in ancient books, it is imaginable to compare the wisdom of the ancients with today's chemical synthesis ideas.
First, succinic acid is used as the starting material and can be obtained by halogenation reaction. Butanic acid can be substituted in a suitable solvent, such as glacial acetic acid, with bromine as the halogenating reagent, and under the action of a catalyst, such as red phosphorus. The reason for this reaction is that red phosphorus and bromine first react to form phosphorus tribromide, which converts the carboxyl group of succinic acid into acyl bromide, then enolates it, and then adds it to bromine to obtain 2% 2C3-dibromosuccinic acid. The reaction steps are as follows:
First put red phosphorus in glacial acetic acid, stir well, slowly add bromine, and after the red phosphorus and bromide fully react to form phosphorus tribromide, add succinic acid, and heat it up to an appropriate temperature, such as 60-80 ° C. When the reaction number is complete, cool, filter, wash, and dry to obtain the product.
Second, butenediic acid can also be synthesized as a raw material. Butylenedioic acid has a carbon-carbon double bond and can be added to bromine. Dissolve the butenedioic acid in a suitable organic solvent, such as dichloromethane, at low temperature, such as 0-5 ° C, slowly add the dichloromethane solution of bromine dropwise, and stir the reaction. Due to the reactivity of the carbon-carbon double bond, bromine can be quickly added to both ends of the double bond to generate 2% 2C3-dibromosuccinic acid. After the reaction, the solvent is separated, washed, dried, and distilled to remove the solvent, and a pure product can be obtained. This method is relatively simple and the reaction conditions are relatively mild, so it is quite commonly used in organic synthesis.
The method of synthesis, although there is no ready-made record in ancient books, is the same as the wisdom of ancient and modern times.

2% 2C3-dibromosuccinic acid is an organic compound. Its physical properties are quite specific, let me describe them in detail for you.
Looking at its properties, at room temperature, it is mostly white crystalline, with fine texture and warm luster, just like finely crushed jade chips, showing a pure state. This state is easy to observe and handle, and it is easy to operate and measure in many experiments and industrial processes.
When it comes to the melting point, it is about 192-195 degrees Celsius. When the temperature gradually rises, this substance slowly melts from a solid state to a liquid state, just like ice and snow melting in the warm sun. This melting point characteristic is of great significance when identifying and purifying this substance. It can be separated from the mixture by precise temperature control and taking advantage of the difference in melting point to obtain a pure product.
Solubility is also an important physical property. 2% 2C3-dibromosuccinic acid is slightly soluble in water, and it is like a shy guest in the water. It is only willing to stay for a while and dissolve some molecules. However, it can be dispersed more easily in organic solvents such as ethanol and ether, showing good solubility. This characteristic opens up many paths for it in the field of organic synthesis. During the synthesis process, suitable organic solvents can be selected to make it fully contact and blend with other reactants, thereby promoting the smooth progress of the reaction.
In terms of density, there is also a specific value, which is about 2.066 grams/cubic centimeter. This value reflects the mass of the substance per unit volume. In the process of storage and transportation, it is related to the selection of containers and the planning of loading capacity. Knowing its density can be properly arranged according to actual needs to ensure the safety and efficiency of material storage and transportation.
2% 2C3 -dibromosuccinic acid has unique physical properties and plays an important role in chemical research, industrial production and many other fields. It is valued by researchers and producers. It is an indispensable substance in the chemical world.

2% 2C3-dibromosuccinic acid, which is very rare and rarely circulated in the market, its market price is difficult to determine. However, if you consider the traces of past transactions and the price of various analogs, you can slightly deduce the approximate.
Looking at the past, the price of such fine chemicals often depends on multiple factors. The difficulty of its preparation, the thinness of the raw materials, and the simplicity of the process are all related to it. The preparation of 2% 2C3-dibromosuccinic acid may require exquisite techniques, and the raw materials may not be easy to obtain, both of which may make it expensive.
Furthermore, its purity is also a key factor in pricing. For those with high purity, the preparation is more difficult, the cost is also high, so the price is high. For those with low purity, although the preparation is slightly easier, the use may be limited, and the price is relatively low.
If the ratio is similar to that of fine chemicals, the price may be between tens of gold and hundreds of gold per gram. However, this is only a guess, and it is true in the market. If there is a buyer, he may need to discuss with various suppliers in detail. According to the quantity, the purity, and the change of supply and demand, the exact price can be obtained. For chemical products, the price varies with the market, and it cannot be generalized.

For 2% 2C3-dibromosuccinic acid, many matters should be paid attention to during storage and transportation.
First word storage. This substance should be placed in a cool, dry and well-ventilated place. Because if the substance is exposed to high temperature, humidity, or changes in properties, it will affect its quality. The storage place should be kept away from fire and heat sources. Because it has certain chemical activity, it will encounter open fire, hot topic or cause danger. And it should be stored separately from oxidizing agents and alkalis, etc., and cannot be mixed. Due to its active chemical properties, contact with other substances or chemical reactions, even serious consequences such as explosion.
Second discussion on transportation. During transportation, the packaging must be tight and stable to ensure that there is no risk of leakage on the way. Transportation vehicles should be equipped with the corresponding variety and quantity of fire equipment and leakage emergency treatment equipment. During driving, drivers must drive carefully to prevent bumps and collisions to avoid packaging damage. During transportation, keep away from densely populated areas and fire sources, and choose suitable routes to avoid traffic congestion and dangerous areas. When loading and unloading, operators should load light and unload lightly. It is strictly forbidden to drop, bump, and collide to avoid packaging damage caused by external impact and material leakage.
In short, 2% 2C3-dibromosuccinic acid must be treated with caution in all aspects of storage and transportation, and follow the norms to ensure that the security is safe and the material quality is not damaged.