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  Lei Wang,Ning Liu,Bin Dai RSC Adv. 2015 5 82097
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Introduction to 5-Chloro-2-fluoropyridine (CAS No. 1480-65-5)

5-Chloro-2-fluoropyridine, with the chemical formula C?H?ClF, is a fluorinated pyridine derivative that has garnered significant attention in the field of pharmaceutical and agrochemical research. This compound, identified by its CAS number 1480-65-5, serves as a versatile intermediate in the synthesis of various biologically active molecules. Its unique structural features, combining both chlorine and fluorine substituents on a pyridine ring, make it a valuable building block for drug discovery efforts.

The significance of 5-Chloro-2-fluoropyridine in modern chemistry stems from its ability to participate in diverse chemical transformations, including nucleophilic aromatic substitution, cross-coupling reactions, and heterocyclic synthesis. These reactions are pivotal in constructing complex molecular architectures essential for developing novel therapeutic agents. Recent advancements in synthetic methodologies have further enhanced the utility of this compound, enabling more efficient and scalable production processes.

In the realm of pharmaceutical research, 5-Chloro-2-fluoropyridine has been extensively explored for its potential in generating pharmacophores that exhibit antimicrobial, anti-inflammatory, and anticancer properties. For instance, studies have demonstrated its role in the development of kinase inhibitors, which are critical in targeting aberrant signaling pathways associated with diseases such as cancer. The presence of both chloro and fluoro groups enhances the lipophilicity and metabolic stability of the resulting compounds, making them more suitable for clinical applications.

One notable application of 5-Chloro-2-fluoropyridine is in the synthesis of small-molecule inhibitors targeting protein-protein interactions. These interactions are often implicated in various pathological conditions, including neurodegenerative disorders and autoimmune diseases. By serving as a scaffold for designing molecules that disrupt or modulate these interactions, 5-Chloro-2-fluoropyridine contributes to the development of innovative therapeutic strategies.

Recent research has also highlighted the compound's utility in agrochemical applications. Fluorinated pyridines are known for their enhanced pesticidal and herbicidal properties due to their ability to interfere with essential enzymatic processes in pests. Derivatives of 5-Chloro-2-fluoropyridine have been investigated as potential candidates for next-generation crop protection agents that offer improved efficacy and environmental safety.

The chemical reactivity of 5-Chloro-2-fluoropyridine allows for further functionalization through various synthetic routes. For example, palladium-catalyzed cross-coupling reactions can be employed to introduce aryl or vinyl groups at different positions on the pyridine ring, expanding the diversity of possible derivatives. Additionally, transition-metal-catalyzed hydrogenation and oxidation reactions provide access to aliphatic and aromatic analogs with tailored electronic properties.

The industrial production of 5-Chloro-2-fluoropyridine (CAS No. 1480-65-5) has seen significant improvements in recent years, driven by the demand for high-purity intermediates in pharmaceutical manufacturing. Process optimization techniques have been implemented to enhance yield and reduce environmental impact. These advancements ensure that researchers and manufacturers have access to reliable supplies of this critical compound.

From a regulatory perspective, the handling and use of 5-Chloro-2-fluoropyridine must adhere to stringent safety protocols due to its potential reactivity and toxicity profile. Proper storage conditions, personal protective equipment (PPE), and waste disposal methods are essential to mitigate risks associated with its use in laboratory and industrial settings.

In conclusion, 5-Chloro-2-fluoropyridine represents a cornerstone compound in modern medicinal chemistry. Its structural versatility and reactivity make it indispensable for synthesizing a wide range of biologically active molecules. As research continues to uncover new applications and synthetic strategies, this compound will undoubtedly remain at the forefront of pharmaceutical innovation.

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• 851179-00-5(3-Chloro-2,5-difluoropyridine)
• 698-51-1(3,5-Dichloro-2,6-difluoropyridine)
• 52208-56-7(3-Chloro-2,6-difluoropyridine)
• 589402-43-7(2,3-difluoro-5-chloro pyridine)
• 89402-43-7(5-Chloro-2,3-difluoropyridine)
• 34941-92-9(4-Chloro-2-fluoropyridine)
• 1480-64-4(3-Chloro-2-fluoropyridine)
• 823-56-3(3,5-Dichloro-2-fluoropyridine)
• 52208-53-4(Pyridine, 3,4-dichloro-2,6-difluoro-)