Metal-Free, Aerobic Dioxygenation of Alkenes Using Hydroxamic Acids
作者:Valerie A. Schmidt、Erik J. Alexanian
DOI:10.1002/anie.201000843
日期:2010.6.14
One dioxygenation please, hold the metal: In the presence of either oxygen or air as the sole oxidant and external oxygen atom source, a variety of unsaturated hydroxamicacids afford cyclic hydroxamates that are readily converted into 1,2‐diols, with the potential for high levels of reaction stereocontrol.
Radical carbooxygenations of alkenes using hydroxamic acids
作者:Ryan K. Quinn、Valerie A. Schmidt、Erik J. Alexanian
DOI:10.1039/c3sc51466h
日期:——
approach to alkene carbooxygenation usinghydroxamicacids is described. These transformations represent rare examples of direct carbooxygenations, and deliver versatile functionality to the unsaturated substrate. Included in this study are alkene oxyallylation, oxycyanation, and formal oxyacylation processes. These unique reactions capitalize on the reactivity of amidoxyl radicals in alkene additions