作者:Wang, Wei、Zheng, Lan、Liang, Wen-Jie、Fu, Xin-Yi、Zhang, Yu-Qing、Meng, Ru-Fang、Zhang, Huan、Lin, Chenxiang、Su, Wei、Xiao, Jun-An
DOI:10.1039/d4ob00782d
日期:——
An unusual spiroannulation/cycloisomerization cascade of 3-(2-ethynylaryl)-N-tosylaziridines with indoles enabled by cooperative gold/scandium catalysis is presented, which facilitates the synthesis of 5H-benzo[b]carbazoles in moderate to excellent yields. This protocol features a broad substrate scope and good functional-group compatibility. Additionally, the resulting 5H-benzo[b]carbazoles exhibit
提出了通过金/钪协同催化实现的 3-(2-乙炔基芳基) -N-甲苯磺酰基氮丙啶与吲哚的不寻常的螺环化/环异构化级联,这促进了 5 H-苯并[ b ]咔唑的合成,产率中等至优异。该方案具有广泛的底物范围和良好的官能团兼容性。此外,所得的5H-苯并[ b ]咔唑表现出良好的荧光性质,证明了该方法的合成实用性。此外,还进行了对照实验来说明反应机理。