Metal-Free Oxidation of Urazole and 1,4-Dihydropyridine Derivatives Under Mild and Heterogeneous Conditions by Nitro Urea, Derived from Urea Nitrate, and Silica Sulfuric Acid
作者:Arash Ghorbani-Choghamarani、Mohammad A. Zolfigol、Maryam Hajjami、Shahrbanoo Rastgoo、Shadpour Mallakpour
DOI:10.2174/157017810791112450
日期:2010.4.1
Mild combination of nitro urea, derived from urea nitrate, and silica sulfuric acid (SiO2OSO3H) might act as an efficient oxidizing media, which could be able to oxidize different types of heterocyclic compounds including urazoles and 1,4-dihydropyridines. The process presented here is operationally simple, environmentally benign, and reactions have been mildly carried out in dichloromethane at room temperature.
温和组合的硝基脲(源自尿 nitrate)和硅酸硫(SiO2OSO3H)可能作为一种有效的氧化介质,能够氧化多种类型的杂环化合物,包括脲唑和1,4-二氢吡啶。这里提出的过程操作简单、环境友好,反应在室温下于二氯甲烷中温和进行。