Synthesis of Trifluoromethylthiolated Quinolinones <i>via</i> Trifluoromethanesulfanamide‐Induced Electrophilic Intramolecular Cyclization of <i>N</i>‐Arylpropynamides
作者:Lingzhi Xu、Fengxia Sun、Hui Zhao、Haofeng Shi、Yihang Wu、Xiaoxian Li、Yunfei Du
DOI:10.1002/adsc.202300719
日期:2023.11.21
The reaction of N-arylpropynamides with the commercially available trifluoromethanesulfanamide in the presence of BiCl3 was found to afford quinolin-2-ones in a selective manner via electrophilic trifluoromethylthiolation enabled by the in-situ generated CF3S−Cl and the followed intramolecularcyclization. Differing from the existing analogous cyclization route that solely produces spiro[4,5]trienones