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Photoredox-Catalyzed Synthesis of Trifluoromethylated Benzimidazo-Fused Heterocycles | Synapse

May 6, 2026Organic & Biomolecular Chemistry0 citations

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Photoredox-Catalyzed Synthesis of Trifluoromethylated Benzimidazo-Fused Heterocycles

ZKZi‐Rui Kuang SFShu-Yao Feng QYQian Yan

Key Points

Investigate the synthesis of trifluoromethylated benzimidazo-fused heterocycles using photoredox catalysis.
Used eosin Y-Na₂ as a catalyst under visible light
Developed two protocols for trifluoromethylation and cyclization
Evaluated Method A utilizing Togni's II under nitrogen
Successfully synthesized trifluoromethylated benzimidazo-fused heterocycles
Demonstrated effective photoredox-catalyzed reactions
Found it to be the first example of Method A with the described conditions

Abstract

A photoredox-catalyzed trifluoromethylation/cyclization of N-allylbenzimidazoles using eosin Y-Na₂ under visible light affords trifluoromethylated benzimidazo-fused heterocycles. Two complementary protocols are established: Method A employs Togni's II under nitrogen-the first example of...

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Cite This Study

Kuang et al. (Wed,) studied this question.

synapsesocial.com/papers/69fa8eca04f884e66b531437 https://doi.org/https://doi.org/10.1039/d6ob00435k