Single-step synthesis of 3-hydroxycarbazoles by annulation of electron-rich anilines and quinones
作者:Eugenia Pushkarskaya、Brian Wong、Chong Han、Simona Capomolla、Chunang Gu、Brian M. Stoltz、Haiming Zhang
DOI:10.1016/j.tetlet.2016.11.009
日期:2016.12
A single-step synthesis of 3-hydroxycarbazoles has been achieved via annulation of electron-rich anilines and quinones in PhMe/AcOH (4:1) at room temperature. This chemistry tolerates various substituted benzoquinones and naphthoquinones, however, is sensitive to both the electronic and steric properties of the anilines. The desired 3-hydroxycarbazole derivatives are generally produced in moderate