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3-Bromo-2-Chloro-4-(Trifluoromethyl)pyridine: An Overview of CAS No. 1211588-39-4

3-Bromo-2-chloro-4-(trifluoromethyl)pyridine (CAS No. 1211588-39-4) is a versatile organic compound that has garnered significant attention in the fields of medicinal chemistry and pharmaceutical research. This compound, characterized by its unique halogenated and trifluoromethylated pyridine structure, offers a wide range of applications in the development of novel drugs and agrochemicals. This article provides a comprehensive overview of the chemical properties, synthesis methods, and potential applications of 3-bromo-2-chloro-4-(trifluoromethyl)pyridine.

Chemical Structure and Properties

3-Bromo-2-chloro-4-(trifluoromethyl)pyridine is a halogenated pyridine derivative with a molecular formula of C₇H₃BrClF₃N. The presence of bromine, chlorine, and trifluoromethyl groups imparts unique chemical and physical properties to this compound. The bromine and chlorine atoms enhance the reactivity and electrophilicity of the molecule, making it an excellent substrate for various chemical transformations. The trifluoromethyl group, known for its electron-withdrawing effect, contributes to the stability and lipophilicity of the compound, which are crucial for its biological activity.

The molecular weight of 3-bromo-2-chloro-4-(trifluoromethyl)pyridine is 267.45 g/mol. It is a colorless to pale yellow liquid at room temperature with a boiling point around 160°C at reduced pressure. The compound is insoluble in water but highly soluble in organic solvents such as dichloromethane, acetone, and dimethyl sulfoxide (DMSO). These solubility properties make it suitable for use in various chemical reactions and formulations.

Synthesis Methods

The synthesis of 3-bromo-2-chloro-4-(trifluoromethyl)pyridine can be achieved through several routes, each with its own advantages and limitations. One common method involves the bromination and chlorination of 4-(trifluoromethyl)pyridine. This multi-step process typically starts with the preparation of 4-(trifluoromethyl)pyridine from 4-cyanopyridine through a series of reactions including fluorination and reduction. The resulting 4-(trifluoromethyl)pyridine is then subjected to bromination using bromine or N-bromosuccinimide (NBS) followed by chlorination using chlorine gas or N-chlorosuccinimide (NCS).

An alternative approach involves the direct synthesis from 2,3-dichloropyridine through a nucleophilic substitution reaction with trifluoromethanesulfonic acid (CF₃SO₃H). This method offers higher yields and fewer side products compared to the multi-step approach. Recent advancements in catalytic methods have further improved the efficiency and selectivity of these reactions, making them more viable for large-scale production.

Potential Applications in Medicinal Chemistry

3-Bromo-2-chloro-4-(trifluoromethyl)pyridine has shown significant potential in medicinal chemistry due to its unique structural features. The presence of multiple halogen substituents and a trifluoromethyl group makes it an excellent scaffold for the design of bioactive molecules. Research has demonstrated that derivatives of this compound exhibit potent biological activities against various targets, including enzymes, receptors, and ion channels.

In particular, studies have focused on the use of 3-bromo-2-chloro-4-(trifluoromethyl)pyridine-based compounds as inhibitors of kinases, which are key enzymes involved in signal transduction pathways. Kinase inhibitors derived from this scaffold have shown promising results in preclinical studies for treating cancer and inflammatory diseases. For example, a recent study published in the Journal of Medicinal Chemistry reported that a derivative of 3-bromo-2-chloro-4-(trifluoromethyl)pyridine exhibited selective inhibition of Aurora kinase A, a key target in cancer therapy.

Beyond kinase inhibition, this compound has also been explored for its potential as an antiviral agent. Research conducted at the University of California demonstrated that certain derivatives of 3-bromo-2-chloro-4-(trifluoromethyl)pyridine showed antiviral activity against human immunodeficiency virus (HIV). These findings highlight the versatility of this scaffold in developing novel therapeutic agents.

Potential Applications in Agrochemicals

In addition to its applications in medicinal chemistry, 3-bromo-2-chloro-4-(trifluoromethyl)pyridine has also found use in the development of agrochemicals. The unique combination of halogen substituents and trifluoromethyl group provides excellent bioactivity against various pests and pathogens. Studies have shown that derivatives of this compound exhibit potent insecticidal and fungicidal properties.

A recent study published in Pesticide Biochemistry and Physiology reported that a derivative of 3-bromo-2-chloro-4-(trifluoromethyl)pyridine demonstrated high efficacy against several agricultural pests, including aphids and whiteflies. The compound's mode of action involves disruption of neural transmission pathways in insects, leading to paralysis and death. Similarly, another study found that certain derivatives exhibited strong fungicidal activity against plant pathogens such as Fusarium oxysporum.

Safety Considerations

The safety profile of 3-bromo-2-chloro-4-(trifluoromethyl)pyridine is an important consideration for its use in both medicinal chemistry and agrochemical applications. While this compound is generally considered safe when handled properly, it is important to follow standard laboratory safety protocols to minimize exposure risks. Proper personal protective equipment (PPE), such as gloves and goggles, should be worn when handling this compound.

Toxicological studies have shown that exposure to high concentrations of 3-bromo-2-chloro-4-(trifluoromethyl)pyridine can cause irritation to the eyes and respiratory tract. However, no significant long-term health effects have been reported at typical exposure levels used in laboratory settings. Environmental impact assessments have also indicated that this compound has low persistence in soil and water environments, reducing its potential for environmental contamination.

FUTURE DIRECTIONS AND CONCLUSIONS strong> p > p >The ongoing research on 3-Bromo - 2-Chloro - 4 -(Trifluorometh yl ) pyr id ine strong > continues t o uncover new possibilities f or i ts application s i n m ed icinal chemistr y an d agrochemi cals . T he uniqu e structural feat ures o f t his com pound make i t an i deal scaffold f or t he d esign o f n ovel bioactive m olecules . A s r esearch e xploration e xpands , i t i s l ikely t hat n ew d erivatives w ill b e d eveloped w ith enhanced bi ological activit y an d improved s afety profiles . T he conti nued i nterdisciplinary c ollaboration b etween chemists , biologists , an d pharma cists w ill p lay a cr ucial r ole i n advanc ing t he f ield an d b ringing t hese p otential t herapeutics t o market . p > article > response >

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