Metal-Free Catalytic Oxidation of Sulfides to Sulfoxides with Ammonium Nitrate, Ammonium Hydrogen Sulfate and Ammonium Bromide as Catalyst

被引：19

作者：

Ghorbani-Choghamarani, Arash ^{[1
]}

Zolfigol, Mohammad Ali ^{[2
]}

Ayazi-Nasrabadi, Roia ^{[2
]}

机构：

[1] Ilam Univ, Fac Sci, Dept Chem, Ilam, Iran

[2] Bu Ali Sina Univ, Fac Chem, Hamadan, Iran

来源：

JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY | 2010年 / 21卷 / 01期

关键词：

sulfides; sulfoxide; ammonium hydrogen sulfate (NH(4)HSO(4)); ammonium nitrate (NH(4)NO(3)); ammonium bromide (NH(4)Br); homoselectivity; SOLVENT-FREE CONDITIONS; PROMOTED SELECTIVE OXIDATION; SILICA-GEL; CORRESPONDING TRIAZOLINEDIONES; PUMMERER REARRANGEMENT; EFFICIENT OXIDATION; N-BROMOSUCCINIMIDE; NITRIC-ACID; SYSTEM; GENERATION;

D O I：

10.1590/S0103-50532010000100006

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A general and metal-free catalytic oxidation of aliphatic and aromatic sulfides to their corresponding sulfoxides via combination of ammonium nitrate (NH(4)NO(3)), supported ammonium hydrogen sulfate on silica gel (NH(4)HSO(4)-SiO(2)) and a catalytic amount of ammonium bromide (NH(4)Br) in the presence of wet SiO(2) (50%, w/w) has been investigated. The reactions were carried out heterogeneously and selectively in short reaction times in CH(2)Cl(2) at room temperature. This protocol is mild and efficient compared to other reported methods.

引用

页码：33 / 36

页数：4

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