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  Feng Shi,Kunping Yan,Mingli Peng,Xiao Cheng,Yanling Luo,Xuemei Chen,V. A. L. Roy,Zuankai Wang Nanoscale, 2012,4, 747-751
• 4. Embedding heteroatoms: an effective approach to create porphyrin-based functional materials
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Chemical Profile of 1,5-dichloro-2-fluoro-4-nitro-benzene (CAS No. 2105-59-1)

1,5-dichloro-2-fluoro-4-nitro-benzene, identified by its CAS number 2105-59-1, is a halogenated aromatic compound that has garnered significant attention in the field of pharmaceutical and agrochemical research due to its versatile structural framework. This compound serves as a crucial intermediate in the synthesis of various biologically active molecules, particularly those targeting neurological and inflammatory disorders. The presence of multiple substituents—chlorine atoms at the 1 and 5 positions, a fluorine atom at the 2 position, and a nitro group at the 4 position—contributes to its unique reactivity and potential applications.

The structural features of 1,5-dichloro-2-fluoro-4-nitro-benzene make it an attractive candidate for further functionalization. The electron-withdrawing nature of the nitro group and the electron-donating properties of the fluorine atom create a delicate balance that influences its chemical behavior. This balance is particularly relevant in designing molecules with enhanced binding affinity to biological targets. Recent studies have highlighted its role as a precursor in the development of novel therapeutic agents, where its halogenated aromatic core is leveraged to optimize pharmacokinetic properties such as solubility and metabolic stability.

In the realm of medicinal chemistry, 1,5-dichloro-2-fluoro-4-nitro-benzene has been explored for its potential in modulating enzyme activity and receptor interactions. For instance, derivatives of this compound have shown promise in inhibiting enzymes involved in inflammatory pathways, such as cyclooxygenase (COX) and lipoxygenase (LOX). The fluorine substitution at the 2-position is particularly noteworthy, as fluorine atoms are known to enhance metabolic stability and binding affinity in drug candidates. This feature has been strategically incorporated into several lead compounds that are currently undergoing preclinical evaluation.

Moreover, the chloro substituents at the 1 and 5 positions provide additional sites for further chemical modification, enabling the synthesis of a diverse array of analogs. These modifications can be tailored to fine-tune the pharmacological profile of the resulting compounds. For example, replacing one or both chlorine atoms with other functional groups can alter the electronic distribution within the molecule, thereby influencing its interactions with biological targets. Such flexibility is essential in drug discovery pipelines where rapid optimization is often required.

The synthetic utility of 1,5-dichloro-2-fluoro-4-nitro-benzene extends beyond pharmaceutical applications. It has also been utilized in materials science, particularly in the development of organic electronic materials such as liquid crystals and semiconductors. The rigid aromatic core combined with electron-withdrawing groups enhances the thermal stability and electronic properties of these materials, making them suitable for advanced technological applications.

Recent advancements in computational chemistry have further illuminated the potential of 1,5-dichloro-2-fluoro-4-nitro-benzene as a scaffold for drug design. Molecular modeling studies have revealed that subtle modifications to its structure can significantly impact its binding mode to biological targets. These insights have guided synthetic efforts toward generating more potent and selective inhibitors. Additionally, green chemistry principles have been applied to improve the sustainability of its synthesis, reducing waste and minimizing hazardous byproducts.

In conclusion, 1,5-dichloro-2-fluoro-4-nitro-benzene (CAS No. 2105-59-1) is a multifaceted compound with broad utility across multiple scientific disciplines. Its unique structural features make it an invaluable intermediate in pharmaceutical research, while its adaptability allows for extensive chemical modifications. As our understanding of molecular interactions continues to evolve, compounds like this will undoubtedly play a pivotal role in advancing therapeutic strategies and material science innovations.

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• 393-79-3(2,4-Dichloro-3-fluoronitrobenzene)
• 104455-89-2(2,3,4-Trichloro-1-fluoro-5-nitrobenzene)