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
Selective hydrogen peroxide oxidation of sulfides to sulfoxides or sulfones with MWW-type titanosilicate zeolite catalyst under organic solvent-free conditions
Selective oxidation of sulfides to sulfoxides and sulfones with hydrogen peroxide under organic solvent-free conditions was demonstrated by the MWW-type titanosilicate zeolite catalyst. Sulfides were oxidized smoothly to give sulfoxides with good selectivities at ambient temperature using 1.0–1.2 equiv of hydrogen peroxide with the MWW-type titanosilicate zeolite catalyst. Especially, the Ti-MWW with
A Mild, Inexpensive, and Convenient Synthesis of Sulfoxides by the Oxidation of Sulfides with Calcium Hypochlorite and Moist Alumina
作者:Masao Hirano、Sigetaka Yakabe、Shikiko Itoh、James H. Clark、Takashi Morimotoa
DOI:10.1055/s-1997-1330
日期:1997.10
The dichloromethane-alumina biphasic system is a simple and effective reagent for the selective oxidation of sulfides to the sulfoxides with calcium hypochlorite.
Selective Oxidation of Sulfides to Sulfoxides Using IBX-Esters
作者:Viktor Zhdankin、Alexey Koposov
DOI:10.1055/s-2004-834873
日期:——
IBX-esters (esters of 2-iodoxybenzoic acid) are convenient hypervalent iodine reagents for the clean and selective oxidation of organic sulfides to sulfoxides. This reaction proceeds without over-oxidation to sulfones andis compatible with the presence of the hydroxy group, double bond, phenolether, benzylic carbon, and various substituted phenyl rings in the molecule of the substrate.
Preparation, X-ray Structure, and Reactivity of 2-Iodylpyridines: Recyclable Hypervalent Iodine(V) Reagents
作者:Akira Yoshimura、Christopher T. Banek、Mekhman S. Yusubov、Victor N. Nemykin、Viktor V. Zhdankin
DOI:10.1021/jo200163m
日期:2011.5.20
prepared by oxidation of the respective 2-iodopyridines with 3,3-dimethyldioxirane. Structures of 2-iodylpyridine, 2-iodyl-3-isopropoxypyridine, and 2-iodyl-3-propoxypyridine were established by single-crystal X-ray diffraction analysis. 2-Iodyl-3-propoxypyridine has moderate solubility in organic solvents (e.g., 1.1 mg/mL in acetonitrile) and can be used as a recyclablereagent for oxidation of sulfides