Recent progress in hypervalent iodine chemistry

Hypervalent iodine compounds are associated with unique and environmentally friendly properties and have been intensively utilized as verstaile reagents and catalysts in modern organic synthesis. In many cases, the hypervalent iodine promoted reactions are quite distinctive and cannot be performed by using any other, non-iodine-based reagent. The importance of hypervalent iodine reagents in modern chemistry is exemplified by the ever-increasing number of research articles and reviews in this area. This short overview presents a brief introduction to Part 4 of the Arkivoc series on hypervalent iodine chemistry. This introductory article provides a summary of major review papers on hypervalent iodine that were published in 2023-2024 following the publication of Part 3 of this series.