Asymmetric oxidation of enol phosphates to α-hydroxy ketones using Sharpless reagents and a fructose derived dioxirane
作者:Ewa Krawczyk、Grażyna Mielniczak、Krzysztof Owsianik、Jerzy Łuczak
DOI:10.1016/j.tetasy.2012.09.012
日期:2012.11
The asymmetric oxidation of a variety of differently substituted, acyclic and cyclic enol phosphates using the Sharpless AD-reagents AD-mix-alpha and AD-mix-beta, and a fructose derived chiral ketone as a catalyst, afforded the corresponding alpha-hydroxy ketones in high enantioselectivity and good yield. The influence of steric and electronic factors of the substrates on the facial stereoselectivity in the reported oxidations was studied. (C) 2012 Elsevier Ltd. All rights reserved.