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1. Zefirov's reagent and related hypervalent iodine triflates

   https://doi.org/10.1016/j.mencom.2021.05.002  

   Yusubov, Mekhman S.; Zhdankin, Viktor V. (May 2021, Mendeleev Communications)
2. Synthesis of Oxazoline and Oxazole Derivatives by Hypervalent-Iodine-Mediated Oxidative Cycloaddition Reactions

   https://doi.org/10.1055/s-0040-1707122  

   Yoshimura, Akira; Saito, Akio; Yusubov, Mekhman S.; Zhdankin, Viktor V. (August 2020, Synthesis)

   null (Ed.)

   Organohypervalent iodine reagents are widely used for the preparation of various oxazolines, oxazoles, isoxazolines, and isoxazoles. In the formation of these heterocyclic compounds, hypervalent iodine species can serve as the activating reagents for various substrates, as well as the heteroatom donor reagents. In recent research, both chemical and electrochemical approaches toward generation of hypervalent iodine species have been utilized. The in situ generated active species can react with appropriate substrates to give the corresponding heterocyclic products. In this short review, we summarize the hypervalent-iodine­-mediated preparation of oxazolines, oxazoles, isoxazolines, and isoxazoles starting from various substrates. 1 Introduction 2 Synthesis of Oxazolines 3 Synthesis of Oxazoles 4 Synthesis of Isoxazolines 5 Synthesis of Isoxazoles 6 Conclusion 

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3. Hypervalent Iodine‐Mediated Azidation Reactions

   https://doi.org/10.1002/ejoc.202200754  

   Mironova, Irina_A; Kirsch, Stefan_F; Zhdankin, Viktor_V; Yoshimura, Akira; Yusubov, Mekhman_S (September 2022, European Journal of Organic Chemistry)

   Abstract Organic azides have found wide application in various fields of science and technology. This review summarizes recently developed approaches to the direct, one‐step synthesis of diverse organic azides utilizing hypervalent iodine reagents. The first part of review deals with the azidation using unstable azidoiodinanes generatedin situfrom common hypervalent iodine reagents (such as diacetoxyiodobenzene or iodosylbenzene) and a source of azide anion (TMSN₃or NaN₃). The second part of review is dedicated to the application of stable azidobenziodoxoles as useful azidating reagents that allow selective direct azidation of C−H bonds or double carbon‐carbon bonds under mild reaction conditions. The use of azidobenziodoxoles eliminates the main disadvantages of the traditional approaches to organic azides, such as the need in pre‐functionalization of organic substrates and harsh reaction conditions. Synthetic application of azidobenziodoxoles made possible direct selective azidation of a plethora of organic substrates including complex molecules at the late synthetic stage. 

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4. Recent Progress in Synthetic Applications of Hypervalent Iodine(III) Reagents

   https://doi.org/10.1021/acs.chemrev.4c00303  

   Yoshimura, Akira; Zhdankin, Viktor_V (September 2024, Chemical Reviews)
5. Recent Progress in Synthetic Applications of Cyclic Hypervalent Iodine(III) Reagents

   https://doi.org/10.1002/adsc.202300275  

   Yoshimura, Akira; Saito, Akio; Zhdankin, Viktor_V (May 2023, Advanced Synthesis & Catalysis)

   Abstract Hypervalent iodine compounds have found broad application in modern organic chemistry as reagents and catalysts. Cyclic hypervalent iodine reagents based on the benziodoxole heterocyclic system have higher stability compared to their acyclic analogues, which makes possible the preparation and safe handling of the reagents with special ligands such as azido, cyano, and trifluoromethyl groups. Numerous iodine‐substituted benziodoxole derivatives have been prepared and utilized as reagents for transfer of the substituent on hypervalent iodine to organic substrate. Reactions of these reagents with organic substrates can be performed under metal‐free conditions, in the presence of transition metal catalysts, or using photocatalysts under photoirradiation conditions. In this review, we focus on the most recent synthetic applications of cyclic hypervalent iodine(III) reagents with the following ligands: N₃, NHR, CN, CF₃, SCF₃, OR, OAc, ONO₂, and C(=N₂)CO₂R. The review covers literature published mainly in the last 5 years. 

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