Urea–hydrogen peroxide prompted the selective and controlled oxidation of thioglycosides into sulfoxides and sulfones
作者:Adesh Kumar Singh、Varsha Tiwari、Kunj Bihari Mishra、Surabhi Gupta、Jeyakumar Kandasamy
DOI:10.3762/bjoc.13.113
日期:——
A practical method for the selective and controlled oxidation of thioglycosides to corresponding glycosyl sulfoxides and sulfones is reported using urea-hydrogen peroxide (UHP). A wide range of glycosyl sulfoxides are selectively achieved using 1.5 equiv of UHP at 60 °C while corresponding sulfones are achieved using 2.5 equiv of UHP at 80 °C in acetic acid. Remarkably, oxidation susceptible olefin
已经报道了使用脲-过氧化氢(UHP)将硫代糖苷选择性和控制地氧化为相应的糖基亚砜和砜的实用方法。在60°C下使用1.5当量的UHP选择性地获得了广泛的糖基亚砜,而在80°C下使用2.5当量的UHP在乙酸中实现了相应的砜。显着地,发现在硫化物的氧化过程中对氧化敏感的烯烃官能团是稳定的。