Benzocarbazole Synthesis via Visible-Light-Accelerated Rh(III)-Catalyzed C–H Annulation of Aromatic Amines with Bicyclic Alkenes
作者:Yichun Wang、Deyang Jia、Jing Zeng、Yuming Liu、Xiubin Bu、Xiaobo Yang
DOI:10.1021/acs.orglett.1c02709
日期:2021.10.15
A visible-light-accelerated Rh(III)-catalyzed C–H annulation of aromatic amines with bicyclic alkenes for the synthesis of benzocarbazole derivatives was developed. In this approach, with the cooperation of rhodium catalysis and visible-light irradiation, various aromatic amines reacted with oxabicyclic alkenes and azabicyclic alkenes smoothly at room temperature, delivering the corresponding bridged
开发了一种用于合成苯并咔唑衍生物的可见光加速 Rh(III) 催化芳胺与双环烯烃的 C-H 环化。在该方法中,在铑催化和可见光照射的协同作用下,各种芳香胺与氧杂双环烯烃和氮杂双环烯烃在室温下顺利反应,以良好的收率得到相应的桥连氧杂或氮杂四氢苯并咔唑。此外,通过进一步的一锅芳构化,方便地合成了一系列苯并[ b ]咔唑。通过定向基团去除、衍生化、放大反应和荧光研究证明了该方法的潜力。