Chemo‐/Regioselective [5+1] Annulation with gem‐Difluoromethylene Allenes for the Assembly of Fluorinated 2H‐Chromenes and Dihydroquinolines. - Lin, Zhensheng; Cai, Ying; Ye, Junwei; Chen, Kaifeng; Zheng, Jieni; Zhou, Linxin; Zhou, Zhi; Yi, Wei (Advanced Synthesis & Catalysis, 2025)