2-Iodylphenol Ethers: Preparation, X-ray Crystal Structure, and Reactivity of New Hypervalent Iodine(V) Oxidizing Reagents
作者:Alexey Y. Koposov、Rashad R. Karimov、Ivan M. Geraskin、Victor N. Nemykin、Viktor V. Zhdankin
DOI:10.1021/jo0614947
日期:2006.10.1
2-Iodylphenol ethers were prepared by the dimethyldioxirane oxidation of the corresponding 2-iodophenol ethers and isolated as chemically stable, microcrystalline products. Single-crystal X-ray diffraction analysis of 1-iodyl-2-isopropoxybenzene 8c and 1-iodyl-2-butoxybenzene 8d revealed pseudopolymeric arrangements in the solid state formed by intermolecular interactions between IO2 groups of different
Highly efficient RuCl3-catalyzed disproportionation of (diacetoxyiodo)benzene to iodylbenzene and iodobenzene; leading to the efficient oxidation of alcohols to carbonyl compounds
作者:Mekhman S. Yusubov、Ki-Whan Chi、Joo Yeon Park、Rashad Karimov、Viktor V. Zhdankin
DOI:10.1016/j.tetlet.2006.06.100
日期:2006.8
(Diacetoxyiodo)benzene (DIB) selectively oxidizes primary and secondary alcohols to the respective carbonyl compounds in the presence of RuCl3 (0.8–1.0 mol %) at room temperature in aqueous acetonitrile. This reaction proceeds via an initial instantaneous Ru-catalyzed disproportionation of DIB to iodobenzene and iodylbenzene with the latter acting as the actual stoichiometric oxidant toward alcohols
Development of new recyclable reagents and catalytic systems based on hypervalent iodine compounds
作者:Mekhman S. Yusubov、Viktor V. Zhdankin
DOI:10.1016/j.mencom.2010.06.001
日期:2010.7
Recent advances in the development of polymer-supported iodine(V) oxidants, recyclable monomeric hypervalent iodine(III) reagents and catalytic systems based on hypervalent iodine compounds are discussed. These efficient and environmentally friendly reagents and catalysts are particularly useful for oxidative transformations of alcohols to carbonyl compounds and for oxidations at the benzylic position.
Facile Preparation and Reactivity of Polymer-Supported <i>N</i>-(2-Iodyl-phenyl)-acylamide, an Efficient Oxidizing System
作者:Uladzimir Ladziata、Jeff Willging、Viktor V. Zhdankin
DOI:10.1021/ol052684r
日期:2006.1.1
A simple three-step preparation of polymer-supported N-(2-iodyl-phenyl)-acylamide (NIPA resin) starting from 2-iodoaniline is described. The resin was obtained with good loading levels (0.7-0.8 mmol g(-1)) and has been successfully used for efficient oxidation of a diverse collection of alcohols. Thus, treating alcohols with 1.0 equiv of the resin in 1,2-dichloroethane under reflux for 30-60 min allowed rapid and in most cases complete conversion to the corresponding carbonyl compound.