Rhodium(III)-Catalyzed Redox-Neutral CH Annulation of Arylnitrones and Alkynes for the Synthesis of Indole Derivatives
作者:Zhi Zhou、Guixia Liu、Yan Chen、Xiyan Lu
DOI:10.1002/adsc.201500580
日期:2015.9.14
By using a nitrone as the oxidizing directing group, a mild, practical and efficient rhodium(III)‐catalyzed CH functionalization for the synthesis of indole derivatives has been developed. This reaction obviates the need for an external oxidant and shows good functional group tolerance. The employment of a sterically hindered Mes group on the carbon center of the nitrone is crucial to produce indoles
通过使用硝酮作为氧化导向基团,已开发出温和,实用和有效的铑(III)催化的CH官能团,用于合成吲哚衍生物。该反应消除了对外部氧化剂的需求,并显示出良好的官能团耐受性。在硝酮碳中心使用空间受阻的Mes基团对于高产率生产吲哚至关重要。