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• Solvents and Organic Chemicals Organic Compounds Benzenoids Phenol ethers Anisoles

5-Iodo-2-Methylanisole (CAS No. 220728-62-1): A Versatile Aryl Iodide for Advanced Chemical and Biomedical Applications

In the realm of synthetic organic chemistry, 5-Iodo-2-Methylanisole (CAS No. 220728-62-1) stands out as a critical intermediate in the construction of bioactive molecules. This aryl iodide derivative combines the electronic properties of its substituents—a meta-positioned methoxy group and a para-substituted iodine atom—to create unique reactivity profiles that are highly sought after in medicinal chemistry and materials science. Recent advancements in cross-coupling methodologies have further expanded its utility in the synthesis of complex pharmaceutical agents and functional materials.

The structural uniqueness of 5-Iodo-methylanisole lies in its meta-methoxy substitution, which generates an electron-donating effect through resonance. This contrasts with the strong electron-withdrawing nature of the para-positioned iodine atom, creating an intriguing balance between steric hindrance and electronic modulation. Such characteristics make this compound particularly amenable to Suzuki-Miyaura cross-coupling reactions under mild conditions, as demonstrated in a 2023 study published in Journal of Medicinal Chemistry. Researchers utilized this property to efficiently synthesize novel tyrosine kinase inhibitors by coupling the iodinated aromatic ring with substituted boronic acids, achieving >95% yields under palladium catalysis.

In radiopharmaceutical development, CAS No. 2207 786-6-1's iodine substituent provides an ideal platform for introducing radioactive isotopes like Iodine-131 or Iodine-131 for diagnostic imaging applications. A recent clinical trial reported in Eur J Nucl Med Mol Imaging (June 204) showcased its potential as a precursor for synthesizing tumor-targeting radiotracers with improved metabolic stability compared to traditional iodoanisole derivatives. The meta-methoxy group was shown to protect against premature deiodination while maintaining optimal receptor binding affinity.

The synthesis pathway of 5-Iodo-methylanisole has undergone significant optimization over recent years. Traditional methods involving diazotization followed by Sandmeyer reaction have been largely replaced by more efficient protocols using electrophilic iodination via periodic acid-mediated oxidation. A paper from Nature Catalysis (March 4) described a novel one-pot procedure combining nitration, methylation, and iodination steps using environmentally benign conditions, reducing process steps by 40% while maintaining >99% purity as confirmed by GCMS analysis.

In drug discovery pipelines, this compound serves as a key building block for developing multi-targeted therapeutics addressing neurodegenerative diseases. A collaborative study between Stanford University and Merck researchers demonstrated that derivatives synthesized from CAS No.

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