Electrophilic Etherification of α-Heteroaryl Carbanions with Monoperoxyacetals as a Route to Ketene <i>O</i>,<i>O</i>- and <i>N</i>,<i>O</i>-Acetals
作者:Timothy J. Paris、Chris Schwartz、Rachel Willand-Charnley
DOI:10.1021/acs.joc.0c02506
日期:2021.2.5
electrophilic oxygen. Heteroaryl ketene acetals are remarkably stable throughout traditional purification techniques; the superior stability of ketene N,O-acetals compared to ketene O,O-acetals is presumably due to increased aromaticity of the indole and pyridine structures. The presented method overcomes typical problems associated with alkyl ketene acetal synthesis as reported products withstood workup