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  Yaling Zhang,Chunhui Dai,Shiwei Zhou,Bin Liu Chem. Commun., 2018,54, 10092-10095
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  Zhiyan Chen,Nan Wu,Yaobing Wang,Bing Wang,Yingde Wang J. Mater. Chem. A, 2018,6, 516-526
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• Solvents and Organic Chemicals Organic Compounds Organic oxygen compounds Organooxygen compounds Carbonyl compounds Aldehydes

Introduction to 3,4-Dihydroxy-6-fluoro-benzaldehyde (CAS No. 71144-36-0)

3,4-Dihydroxy-6-fluoro-benzaldehyde, identified by its Chemical Abstracts Service (CAS) number 71144-36-0, is a fluorinated aromatic aldehyde with significant utility in the field of pharmaceutical chemistry and organic synthesis. This compound belongs to the class of heterocyclic aromatic derivatives, characterized by the presence of both hydroxyl and fluoro substituents on a benzene ring. The structural arrangement of these functional groups imparts unique chemical properties, making it a valuable intermediate in the development of various bioactive molecules.

The 3,4-dihydroxy-6-fluoro-benzaldehyde structure consists of a benzaldehyde core substituted with two hydroxyl groups at the 3 and 4 positions and a single fluorine atom at the 6 position. This specific configuration enhances its reactivity and selectivity in synthetic transformations, enabling its application in constructing more complex molecular architectures. The fluorine atom, in particular, plays a crucial role in modulating the electronic properties of the aromatic system, influencing both its solubility and metabolic stability.

In recent years, there has been growing interest in 3,4-dihydroxy-6-fluoro-benzaldehyde due to its potential applications in drug discovery and medicinal chemistry. Its scaffold is reminiscent of several naturally occurring compounds known for their pharmacological activities. For instance, derivatives of this compound have been explored as precursors in the synthesis of antimicrobial agents, anti-inflammatory drugs, and even candidates for anticancer therapies. The hydroxyl groups provide opportunities for further derivatization via esterification, etherification, or glycosylation, while the aldehyde functionality allows for condensation reactions with various nucleophiles.

One of the most compelling aspects of 3,4-dihydroxy-6-fluoro-benzaldehyde is its role as a key intermediate in the synthesis of fluorinated heterocycles. Fluorinated compounds are increasingly prevalent in modern pharmaceuticals due to their enhanced bioavailability, metabolic stability, and binding affinity to biological targets. The presence of the fluoro group in 3,4-dihydroxy-6-fluoro-benzaldehyde not only contributes to these desirable properties but also opens up avenues for exploring structure-activity relationships (SAR) in drug design. Researchers have leveraged this compound to develop novel molecules with improved pharmacokinetic profiles compared to their non-fluorinated counterparts.

Recent studies have highlighted the synthetic versatility of 3,4-dihydroxy-6-fluoro-benzaldehyde in constructing complex scaffolds. For example, it has been utilized as a building block in the preparation of benzofuran derivatives, which are known for their diverse biological activities. By employing palladium-catalyzed cross-coupling reactions or intramolecular cyclizations, chemists have been able to generate intricate fused ring systems that mimic natural products with potent therapeutic effects. These advances underscore the importance of 3,4-dihydroxy-6-fluoro-benzaldehyde as a versatile intermediate in medicinal chemistry.

The pharmaceutical industry has also shown interest in 3,4-dihydroxy-6-fluoro-benzaldehyde for its potential as a scaffold for enzyme inhibition. The unique electronic environment created by the combination of hydroxyl and fluoro groups makes it an attractive candidate for modulating enzyme activity. For instance, derivatives of this compound have been investigated as inhibitors of cytochrome P450 enzymes, which play critical roles in drug metabolism. By fine-tuning the substitution pattern on the benzene ring, researchers can achieve selective inhibition without off-target effects.

Another area where 3,4-dihydroxy-6-fluoro-benzaldehyde has found utility is in materials science. The presence of both polar hydroxyl groups and non-polar aromatic rings makes it an interesting candidate for designing organic semiconductors or liquid crystals. These materials are essential components in electronic devices such as organic light-emitting diodes (OLEDs) and liquid crystal displays (LCDs). The fluorine atom further enhances thermal stability and chemical resistance, making it an ideal candidate for high-performance applications.

In conclusion,3,4-Dihydroxy-6-fluoro-benzaldehyde (CAS No. 71144-36-0) is a multifaceted compound with broad applications across pharmaceuticals、organic synthesis and materials science。 Its unique structural features enable diverse chemical transformations，making it a valuable tool for researchers seeking to develop novel bioactive molecules。 As our understanding of fluorinated compounds continues to grow，the importance of intermediates like 3，4-dihydroxy-6-fluoro-benzaldehyde is likely to increase，driving innovation across multiple scientific disciplines。

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