Production Method 1

75806-85-8

89402-44-8

Reaction Conditions

Reference

α,β- And β,γ-difluoropyridine compounds employing potassium fluoride and/or cesium fluoride as the fluorinating agent

, European Patent Organization, , ,

Production Method 2

75806-85-8

89402-44-8

Reaction Conditions

Reference

Pyridyl(oxy/thio)phenoxy compounds and herbicidal compositions

, European Patent Organization, , ,

5-Bromo-2,3-difluoropyridine Raw materials

• 2,3,5-Tribromopyridine

5-Bromo-2,3-difluoropyridine Preparation Products

• 5-Bromo-2,3-difluoropyridine (89402-44-8)

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• Solvents and Organic Chemicals Organic Compounds Organoheterocyclic compounds Pyridines and derivatives Halopyridines Polyhalopyridines

Introduction to 5-Bromo-2,3-difluoropyridine (CAS No. 89402-44-8)

5-Bromo-2,3-difluoropyridine (CAS No. 89402-44-8) is a fluorinated pyridine derivative that has garnered significant attention in the field of pharmaceutical and agrochemical research due to its versatile structural framework and reactivity. This compound serves as a crucial intermediate in the synthesis of various biologically active molecules, making it a valuable asset in medicinal chemistry and drug discovery programs.

The molecular structure of 5-Bromo-2,3-difluoropyridine features a pyridine ring substituted with two fluorine atoms at the 2 and 3 positions, further functionalized with a bromo group at the 5 position. This unique arrangement imparts distinct electronic and steric properties to the molecule, enabling its participation in diverse chemical transformations. The presence of both bromine and fluorine atoms makes it an attractive building block for further derivatization, allowing chemists to explore a wide range of possible pharmacophores.

In recent years, 5-Bromo-2,3-difluoropyridine has been extensively studied for its potential applications in the development of novel therapeutic agents. Its structural motif is frequently incorporated into small-molecule inhibitors targeting various biological pathways. For instance, research has demonstrated its utility in designing kinase inhibitors, which are critical in treating cancers and inflammatory diseases. The fluorinated pyridine core enhances the binding affinity and selectivity of these inhibitors by improving hydrophobic interactions and metabolic stability.

One notable area of investigation involving 5-Bromo-2,3-difluoropyridine is its role in the synthesis of antiviral compounds. The compound’s ability to act as a precursor for constructing complex scaffolds has been leveraged to develop molecules with potent antiviral activity. Studies have shown that derivatives of 5-Bromo-2,3-difluoropyridine exhibit inhibitory effects against viruses such as HIV and hepatitis C by interfering with viral replication mechanisms. The fluorine atoms contribute to the stability of these antiviral agents under physiological conditions, thereby enhancing their efficacy.

The agrochemical industry has also recognized the significance of 5-Bromo-2,3-difluoropyridine as a key intermediate in the development of advanced pesticides and herbicides. Its structural features enable the creation of compounds that exhibit strong pesticidal activity while maintaining environmental safety. Researchers have utilized 5-Bromo-2,3-difluoropyridine to synthesize novel fungicides that target specific enzymatic pathways in fungi, offering an alternative to conventional treatments that may suffer from resistance issues.

From a synthetic chemistry perspective, 5-Bromo-2,3-difluoropyridine is valued for its reactivity in cross-coupling reactions such as Suzuki-Miyaura and Buchwald-Hartwig couplings. These reactions allow for the introduction of diverse functional groups onto the pyridine ring, facilitating the construction of complex molecular architectures. The bromo substituent serves as an excellent handle for palladium-catalyzed transformations, while the fluorine atoms can influence regioselectivity and reaction outcomes.

The pharmaceutical industry’s interest in 5-Bromo-2,3-difluoropyridine extends beyond its use as an intermediate; it also serves as a scaffold for drug-like molecules with improved pharmacokinetic properties. The incorporation of fluorine into drug candidates is well-documented for its ability to enhance lipophilicity, metabolic stability, and binding affinity to biological targets. 5-Bromo-2,3-difluoropyridine exemplifies how strategic functionalization can lead to the discovery of next-generation therapeutics.

Recent advances in computational chemistry have further highlighted the importance of 5-Bromo-2,3-difluoropyridine in drug design. Molecular modeling studies have revealed that its structural features are conducive to interactions with biological macromolecules such as proteins and enzymes. These insights have guided the optimization of lead compounds derived from 5-Bromo-2,3-difluoropyridine, leading to more potent and selective drug candidates.

The versatility of 5-Bromo-2,3-difluoropyridine is also reflected in its application as a ligand in coordination chemistry. Transition metal complexes derived from this compound have shown promise in catalytic applications, including polymerization reactions and organic transformations. The combination of bromo and fluorine substituents provides unique coordination sites that influence metal binding affinity and catalytic activity.

In conclusion,5-Bromo-2,3-difluoropyridine (CAS No. 89402-44-8) is a multifaceted compound with broad utility across multiple scientific disciplines. Its role as a synthetic intermediate in pharmaceuticals and agrochemicals underscores its importance in modern chemical research. As new methodologies emerge and our understanding of biological systems advances,5-Bromo-2,3-difluoropyridine will continue to play a pivotal role in the discovery and development of innovative solutions.

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