作者:Nazarii Sabat、Weiping Zhou、Vincent Gandon、Xavier Guinchard、Guillaume Vincent
DOI:10.1002/anie.202204400
日期:2022.7.25
Direct dearomative C3-functionalization of indoles provided access to privileged scaffolds by an umpolung strategy. Against all odds, C3-indolium intermediates could be generated from NH-indoles under operationally simple conditions with triflic acid at room temperature to promote intra- and intermolecular C3-regioselective hydroarylation. DFT studies suggest that these cationic or dicationic intermediates