Bromoquinoline
Quinoline Thiophene Imidazole Thiazole
Bromoquinoline
Name Bromoquinoline
Molecular Formula C9H6BrN
Molar Mass 208.054 g/mol
Appearance Yellow - brown solid or liquid
Boiling Point 282 - 284 °C
Melting Point 39 - 41 °C
Density 1.57 g/cm³
Solubility In Water Insoluble
Solubility In Organic Solvents Soluble in many organic solvents like ethanol, ether
Flash Point 126 °C
Odor Characteristic, unpleasant
Cas Number 578 - 73 - 4
FAQ

What are the main uses of Bromoquinoline?

Bromoquinoline is also an organic compound. It has a wide range of uses and is important in the fields of medicine, pesticides, and dyes.

In medicine, bromoquinoline is a key traditional Chinese medicine and can be used as an antibacterial, anti-inflammatory, and anti-malaria agent. Due to its special structure, it can combine with specific targets of pathogens and interfere with their physiological processes to achieve therapeutic effects. In the past, malaria was rampant, and the medicine made by bromoquinoline saved people from pain and saved countless lives.

As for pesticides, bromoquinoline is also indispensable. It can be used to produce insecticides, fungicides, and protect farmers and mulberry crops. It can precisely act on pests and pathogens, prevent their reproduction and growth, keep crops strong, make grains abundant and warehouses full.

In the field of dyes, bromoquinoline can increase the color and stability of dyes. The dyed fabric has a positive and long-lasting color and is radiant. The dyeing workshop of ancient times, with this help, can make colorful fabrics for the decoration of the world's clothes.

From this point of view, bromoquinoline is widely used in all aspects, and has great contributions to the rescue of diseases in medicine, the increase of agricultural income, and the improvement of dyeing industry. It is actually a good recipe for helping the world and a treasure of creation.

What are the physical properties of Bromoquinoline?

Bromoquinoline is also an organic compound. Its physical properties are quite describable. Looking at its form, it is mostly liquid at room temperature. When it is pure, it is clear and transparent, like a clear spring, glowing with a shimmer, flickering in the sun.

Smell it, there is a specific smell, although not pungent, but also unique, lingering in the nose for a long time, as if telling its internal chemical mysteries.

As for its boiling point, it is quite considerable, and it needs a higher temperature to boil it and turn it into a gaseous state. This property makes it unique in many chemical reactions and industrial processes, which can be regulated according to temperature and play a unique role. Its melting point is relatively stable, just like a solid foundation, so that bromoquinoline maintains its inherent form within a specific temperature range.

In terms of density, it is larger than common light liquids. It is placed in a container, stable and heavy, and seems to contain endless power. Solubility is also an important physical property. In organic solvents, such as alcohols and ethers, it can be well dissolved, blended with each other, and integrated. However, in water, the solubility is quite limited, and the two seem to be distinct and difficult to blend.

The refractive index of bromoquinoline is also unique. When light penetrates, a specific refraction phenomenon occurs, just like a skilled painter, skillfully changing the trajectory of light, giving it a unique optical charm. This physical property makes it unique in the field of chemistry, providing a foundation for many studies and applications.

Is Bromoquinoline chemically stable?

Bromoquinoline is also an organic compound. Its chemical properties are not very stable.

In bromoquinoline, bromine atoms are active. With the characteristics of its halogen atom, it is easy to involve nucleophilic substitution reactions. Under appropriate conditions, bromine atoms can be replaced by other nucleophilic reagents, such as hydroxyl and amino groups. This is because the bromine atom is connected to the quinoline ring, and the electron cloud distribution of the quinoline ring makes the bromine atom partially positively charged and easy to be attacked by electron-rich nucleophiles.

And the quinoline ring itself also has considerable reactivity. Its conjugated system can participate in electron transfer reactions, and under redox conditions, there may be corresponding changes. In case of strong oxidants, the quinoline ring may be oxidized, resulting in structural changes.

In addition, in the alkaline environment of bromoquinoline, the activity of bromine atoms may be more obvious, and nucleophilic substitution reactions may be easier to proceed. Under acidic conditions, although the nitrogen atom of the quinoline ring can be protonated, the reactivity of bromine atoms is also affected by the system.

Overall, the chemical properties of bromoquinoline are not stable, and it is easy to react in various chemical environments, which is caused by the characteristics of bromine atoms and quinoline rings in its structure.

What are the synthesis methods of Bromoquinoline?

To prepare bromoquinoline, there are three methods.

First, quinoline is used as the beginning and directly responds to bromine. Quinoline is aromatic and rich in electrons on the ring. Bromine is active and can be electrophilically substituted with a specific carbon position on the quinoline ring at an appropriate temperature and catalysis. It is often urged by iron powder or iron tribromide to introduce bromine into the ring. For example, in a flask, quinoline is placed and catalyzed, and bromine is slowly injected. The temperature control order should be stable. After the application is completed, bromoquinoline is obtained by the step of separation and purification.

Second, from the condensation of phenylamines and halogenated benzaldehyde, etc., through the order of cyclization and bromination. First, aniline and halogenated benzaldehyde are condensed with the help of alkali to form a nitrogen-containing double bond, and then the quinoline parent nucleus is cyclized. After the quinoline ring is brominated, the first bromination step can be imitated to achieve the preparation of bromoquinoline. This multi-step reaction is excellent for constructing quinoline rings and locating bromine atoms, and can precisely control the structure of the product.

Third, use the Grignard reagent method. Halogenated quinoline is first prepared to give Grignard reagent, and then reacts with bromine sources such as copper bromide. Take halogenated quinoline, dissolve it into anhydrous ether or tetrahydrofuran, add magnesium chips, and introduce Grignard to form Grignard reagent. Then it is mixed with the bromine source, the carbon-magnesium bond in the Grignard reagent is active, and it is exchanged with the bromine atom in the bromine source to obtain bromoquinoline. This way requires an anhydrous and oxygen-free environment, and the operation is high. However, in some specific bromoquinoline synthesis, it shows excellent structure, which is difficult to prepare by other methods.

Where is Bromoquinoline used?

Bromoquinoline is useful in many fields.

In the field of medicine, it can be used as a key intermediate to produce drugs. Because of its unique chemical structure, it can provide a cornerstone for the synthesis of compounds with specific pharmacological activities. For example, in the development of antimalarial drugs, bromoquinoline may play an important role in its synthesis. By reacting with other reagents, it can shape a molecular structure that has the effect of inhibiting or killing malaria parasites.

In materials science, bromoquinoline can also be used. It can participate in the synthesis process of polymer materials. Using it as a raw material, through reactions such as polymerization, it may be able to produce materials with special properties, such as enhancing the heat resistance and mechanical properties of materials. Due to the bromine atom and quinoline ring contained in bromoquinoline, it can endow the material with unique electronic effects and spatial structure, thereby improving the overall properties of the material.

Furthermore, in the field of organic synthesis chemistry, bromoquinoline is often used as an important reagent. Chemists can construct complex and diverse organic molecules by nucleophilic substitution, coupling and other reactions of bromine atoms. This provides an effective way for organic synthesis chemists to expand the molecular structure library and create new compounds, and contributes to many cutting-edge research such as new drug development and new functional materials exploration.

In summary, bromoquinoline has shown important application value in the fields of medicine, materials science, and organic synthesis chemistry, contributing to the development of various fields.