Cobalt-Catalyzed [4+2] Annulation of Indole Carboxamide with Diynes and Monoacetylene: Direct Access to γ-Carbolinones
Wenfeng Bei, Jian Pan, Dongmei Ran, Yilin Liu, Zhen Yang, Ruokun Feng
Chinese Journal of Organic Chemistry . 2023, (9): 3226 -3238 .  DOI: 10.6023/cjoc202302018