Visible Light‐Driven Photoredox Synthesis of Sulfonylated Benzimidazoisoquinolines via 10 H ‐Phenothiazine‐Catalyzed Electron Donor–Acceptor Complexes
Year: 2025
Type: article
Abstract: An unmodified 10 H ‐phenothiazine is directly utilized as an efficient photocatalyst to enable ready access to sulfonylated benzo[4,5]imidazo[2,1‐ a ]isoquinoline derivatives from N ‐allyl benzimidazoles and sulfonyl chlorides. The reaction involves the formation of electron donor–acceptor complexes between phenothiazine and sulfonyl chloride, which, upon visible light irradiation, undergo single‐electron transfer to generate sulfonyl radicals. The reaction features mild conditions, broad substrate scope, and high efficiency.
Source: Advanced Synthesis & Catalysis
DOI: 10.1002/adsc.9581
Institution: Changsha University of Science and Technology
Language: English
Subfield: Organic Chemistry
Field: Chemistry
Domain: Physical Sciences
Open Access status: bronze
Award: G8119600780
OpenAlex ID: W4411291401