Synthesis of Phenanthridinones by Palladium-Catalyzed Cyclization of N-Aryl-2-aminopyridines with 2-Iodobenzoic Acids in Water
作者:Xiaojuan Ding、Lei Zhang、Yiyang Mao、Binsen Rong、Ning Zhu、Jindian Duan、Kai Guo
DOI:10.1055/s-0039-1691538
日期:2020.2
The first Pd-catalyzed cyclization of N-aryl-2-aminopyridines with 2-iodobenzoic acids for the synthesis of phenanthridinones through C–H bond activation under very low catalyst loadings (down to 0.1 mol% Pd) in water is reported. This protocol features a broad substrate scope and provides easy efficient access to various phenanthridinones.
据报道,首次在 Pd 催化下将 N-芳基-2-氨基吡啶与 2-碘苯甲酸环化,通过 C-H 键活化在水中极低的催化剂负载量(低至 0.1 mol% Pd)合成菲啶酮。该协议具有广泛的底物范围,并提供对各种菲啶酮的轻松有效访问。