Palladium-Catalyzed Cycloisomerization of 2‑Ethynylbiaryls to 9‑Methylidene Fluorenes - Guo, Hongyu; Zhang, Sheng; Feng, Xiujuan; Yu, Xiaoqiang; Yamamoto, Yoshinori; Bao, Ming (Organic letters, 2022)
Keywords: fluorenes; halogens; temperature