Wacker Oxidation of Methylenecyclobutanes: Scope and Selectivity in an Unusual Setting
作者:Jan Sietmann、Marius Tenberge、Johannes M. Wahl
DOI:10.1002/anie.202215381
日期:2023.2.6
Methylenecyclobutanes undergo Wacker oxidation towards cyclopentanones under mild reaction conditions. A semi-pinacol-type rearrangement is proposed to be responsible for the intermediary 1,2-shift, which not only explains the formation of the products, but also rationalizes the reaction outcomes in terms of site-, regio- and enantioselectivity.
亚甲基环丁烷在温和的反应条件下经过瓦克氧化生成环戊酮。提出半频哪醇型重排负责中间 1,2-转移,这不仅解释了产物的形成,而且还使反应结果在位点、区域和对映选择性方面合理化。