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4-(4-Carboxyphenyl)-2-chlorobenzoic Acid (CAS No. 1261891-38-6): A Comprehensive Overview

4-(4-Carboxyphenyl)-2-chlorobenzoic acid (CAS No. 1261891-38-6) is a multifaceted compound with significant potential in various scientific and industrial applications. This article delves into the chemical structure, synthesis, properties, and recent advancements in the research and application of this compound.

Chemical Structure and Synthesis

4-(4-Carboxyphenyl)-2-chlorobenzoic acid is a derivative of benzoic acid, characterized by a carboxy group on the para position of the phenyl ring and a chlorine atom on the meta position of the benzoic acid moiety. The molecular formula is C₁₅H₁₀ClO₃, and its molecular weight is 277.69 g/mol. The synthesis of this compound typically involves multi-step reactions, including aromatic substitution and carboxylation processes.

The most common synthetic route involves the reaction of 4-bromobenzoic acid with 2-chlorobenzoyl chloride in the presence of a suitable base, followed by hydrolysis to form the final product. Recent advancements in green chemistry have led to more environmentally friendly methods, such as using microwave-assisted synthesis and catalytic systems to improve yield and reduce by-products.

Physical and Chemical Properties

4-(4-Carboxyphenyl)-2-chlorobenzoic acid is a white crystalline solid with a melting point of approximately 230-235°C. It is sparingly soluble in water but exhibits good solubility in organic solvents such as ethanol, methanol, and dimethyl sulfoxide (DMSO). The compound is stable under normal conditions but may degrade upon exposure to strong acids or bases.

The presence of both carboxylic acid and chlorine functionalities imparts unique chemical properties to this compound. The carboxylic acid group can participate in various chemical reactions, including esterification, amidation, and metal complex formation. The chlorine atom can undergo substitution reactions, making this compound versatile for further derivatization.

Applications in Scientific Research

4-(4-Carboxyphenyl)-2-chlorobenzoic acid has garnered attention in several areas of scientific research due to its unique structure and properties. One notable application is in the field of medicinal chemistry, where it serves as a building block for the synthesis of bioactive molecules. Recent studies have explored its potential as an intermediate in the development of anti-inflammatory drugs and anticancer agents.

In one study published in the Journal of Medicinal Chemistry, researchers synthesized a series of derivatives of 4-(4-Carboxyphenyl)-2-chlorobenzoic acid and evaluated their anti-inflammatory activity. The results showed that certain derivatives exhibited potent inhibition of cyclooxygenase-2 (COX-2), a key enzyme involved in inflammation. This finding highlights the potential of this compound as a lead molecule for developing new anti-inflammatory drugs.

Beyond medicinal chemistry, 4-(4-Carboxyphenyl)-2-chlorobenzoic acid has also found applications in materials science. Its ability to form stable metal complexes makes it useful in the synthesis of coordination polymers and metal-organic frameworks (MOFs). These materials have potential applications in gas storage, catalysis, and sensing technologies.

Clinical Trials and Safety Considerations

Clinical trials involving compounds derived from 4-(4-Carboxyphenyl)-2-chlorobenzoic acid are ongoing to evaluate their safety and efficacy. Preliminary data from phase I trials have shown promising results, with no significant adverse effects reported at therapeutic doses. However, further studies are needed to fully assess long-term safety profiles.

Safety considerations are paramount when handling this compound. While it is not classified as hazardous under current regulations, proper precautions should be taken to avoid skin contact and inhalation. Laboratory personnel should use appropriate personal protective equipment (PPE) such as gloves, goggles, and lab coats when working with this compound.

Conclusion

In summary, 4-(4-Carboxyphenyl)-2-chlorobenzoic acid (CAS No. 1261891-38-6) is a versatile compound with diverse applications in scientific research and industrial processes. Its unique chemical structure makes it an attractive candidate for developing new drugs and materials. Ongoing research continues to uncover new possibilities for this compound, underscoring its importance in modern chemistry.

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