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• 2. An analysis of the WTC fires using CIB correlations and simple modeling
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• 3. An antioxidant self-healing hydrogel for 3D cell cultures?
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• 4. An insight into the hybridization mechanism of hairpin DNA physically immobilized on chemically modified graphenes
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• 5. An algal process treatment combined with the Fenton reaction for high concentrations of amoxicillin and cefradine
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2-Chloro-6-fluoro-5-hydroxyphenylboronic Acid (CAS 958646-67-8): A Versatile Boronic Acid Derivative in Modern Chemistry

2-Chloro-6-fluoro-5-hydroxyphenylboronic acid (CAS 958646-67-8) is an important boronic acid derivative that has gained significant attention in pharmaceutical and material science research. This compound, with its unique halogen-substituted aromatic structure, serves as a valuable building block in Suzuki-Miyaura cross-coupling reactions, one of the most widely used methods for carbon-carbon bond formation in organic synthesis.

The molecular structure of 2-chloro-6-fluoro-5-hydroxyphenylboronic acid features three distinct functional groups: a boronic acid moiety, hydroxyl group, and halogen substituents (chloro and fluoro). This combination makes it particularly useful for creating complex molecular architectures. Recent studies highlight its application in developing PET imaging agents and bioconjugation reagents, addressing current research trends in medical diagnostics and targeted drug delivery systems.

In pharmaceutical applications, CAS 958646-67-8 has shown promise in the synthesis of kinase inhibitors and antibody-drug conjugates (ADCs), two rapidly growing areas in cancer therapeutics. The compound's ability to participate in click chemistry reactions while maintaining stability under physiological conditions makes it particularly valuable for these applications. Researchers are exploring its use in developing next-generation small molecule drugs with improved selectivity and reduced side effects.

The material science field has also benefited from 2-chloro-6-fluoro-5-hydroxyphenylboronic acid, where it serves as a precursor for organic electronic materials and molecular sensors. Its fluorinated aromatic structure contributes to enhanced thermal stability and electronic properties in conjugated polymers, addressing the growing demand for high-performance organic semiconductors in flexible electronics and display technologies.

From a synthetic chemistry perspective, the ortho-hydroxyl group in 958646-67-8 offers unique advantages in chelation-controlled reactions and intramolecular hydrogen bonding, which can influence reaction selectivity and product yields. This characteristic has made it particularly valuable in asymmetric synthesis and the preparation of chiral auxiliaries, topics of high interest in modern organic chemistry.

Recent market analysis shows increasing demand for halogenated boronic acids like 2-chloro-6-fluoro-5-hydroxyphenylboronic acid, driven by expanding applications in medicinal chemistry and material science. The compound's stability, relatively low toxicity, and versatile reactivity profile make it a preferred choice for researchers developing new therapeutic candidates and functional materials.

Quality control of CAS 958646-67-8 typically involves advanced analytical techniques including HPLC purity analysis, NMR spectroscopy, and mass spectrometry. These methods ensure the compound meets the stringent requirements for pharmaceutical and electronic applications, where even minor impurities can significantly impact performance.

Environmental considerations for 2-chloro-6-fluoro-5-hydroxyphenylboronic acid synthesis and handling have become increasingly important. Modern production methods emphasize green chemistry principles, focusing on atom economy, reduced solvent use, and energy efficiency. These approaches align with current industry trends toward sustainable chemical manufacturing processes.

Future research directions for 958646-67-8 include exploring its potential in proteolysis targeting chimeras (PROTACs) and other emerging therapeutic modalities. The compound's ability to serve as a versatile linker in complex molecular systems positions it well for these cutting-edge applications in drug discovery and development.

For researchers working with 2-chloro-6-fluoro-5-hydroxyphenylboronic acid, proper storage conditions (typically cool, dry environments under inert atmosphere) and handling procedures are essential to maintain its reactivity and shelf life. These practical considerations are particularly important given the compound's applications in sensitive bioconjugation reactions and catalytic systems.

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