Visible-Light-Induced Tandem Nickel-Catalyzed Heck Cyclization/Self-Promoted [2+2] Intermolecular Cycloaddition.

• Tác giả: Jianwei Li, Linlin Ren, Xiaogang Tong, Yonggong Wang, Chengfeng Xia, Derun Zhang
• Ngôn ngữ: eng
• Ký hiệu phân loại: 575.97 *Movement
• Thông tin xuất bản: United States : Organic letters , 2025
• Bộ sưu tập: NCBI
• ID: 698652

Tóm tắt

Visible-light-induced transition metal (TM) catalysis has emerged as a new paradigm to discover unprecedented transformations. The reported nickel species as TM photocatalysts are mainly involved in the homolysis of Ni(II) complex or alkyl halide activation. Herein, we describe that the photoexcited nickel species could facilitate Heck cyclization by accelerating the anti-β-hydride elimination. Meanwhile, a tandem visible-light-induced substrate self-promoted intermolecular [2+2] photocycloaddition without the assistance of additional photocatalysts was discovered.