Ferrocene-Mediated Photocatalytic Annulation of N -Sulfonyl Ketimines on a Polycrystalline WSe 2 Semiconductor Photocatalyst

作者：Yuhan Lu, Chao Wu, Jia-Cheng Hou, Zhilin Wu, Min‐Hang Zhou, Xiaojun Huang, Wei‐Min He · 发表于：ACS Catalysis · 年份：2023 · DOI：10.1021/acscatal.3c02268 · 被引用次数：207 · 研究领域：Sulfur-Based Synthesis Techniques、Radical Photochemical Reactions、Catalytic C–H Functionalization Methods

A merger of heterogeneous polycrystalline WSe 2 semiconductor photocatalysis and homogeneous ferrocene redox catalysis for the cascade radical coupling-annulation reactions was established. In the redox-mediated photocatalysis, ferrocene can improve the separation of photogenerated hole–electron pairs on WSe 2 by consuming the hole via the formation of a ferrocene cation, which triggered the molecular transformations. Various benzo[ e ]imidazo[1,5- c ][1,2,3]oxathiazine 5,5-dioxides were formed through semiheterogeneous three-component reaction of N -sulfonyl ketimines, N -arylglycines, and formaldehyde.