Cascade Nitration/Cyclization of 1,7-Enynes with<i>t</i>BuONO and H<sub>2</sub>O: One-Pot Self-Assembly of Pyrrolo[4,3,2-<i>de</i>]quinolinones
作者:Yu Liu、Jia-Ling Zhang、Ren-Jie Song、Peng-Cheng Qian、Jin-Heng Li
DOI:10.1002/anie.201404192
日期:2014.8.18
Here we describe the one‐pot construction of the pyrrolo[4,3,2‐de]quinolinone scaffold by a cascadenitration/cyclization sequence of 1,7‐enynes with tBuONO and H2O. The cascade proceeds through alkene nitration, 1,7‐enyne 6‐exo‐trig cyclization, CH nitrations, and redox cyclization, and exhibits excellent functional group tolerance. The mechanism was investigated using in situ high‐resolution mass