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Photocatalytic Silylation/Germylation and Cascade Cyclization of N-(o-Cyanobiaryl)acrylamides: Access to Silylated and Germylated Phenanthridines.

PubMed
Authors: Maurya SK, Selvakumar S

Year

2026

Paper ID

10049

Status

Peer-reviewed

Abstract Read

~2 min

Abstract Words

88

Citations

0

Abstract

We report a highly efficient protocol for the synthesis of silylated/germylated phenanthridine derivatives through the photocatalytic radical cascade cyclization of -aryl acrylamides. A simple -aminopyridinium salt was used as a hydrogen atom transfer reagent to generate a silyl/germyl radical under photoredox catalytic conditions. This method demonstrates a broad substrate scope and is suitable for the late-stage functionalization of natural products and pharmaceuticals with a shorter reaction time. Moreover, photophysical studies of selected phenanthridine derivatives highlight the promising luminescence properties with excellent fluorescence emission efficacy (quantum yields).

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  • We report a highly efficient protocol for the synthesis of silylated/germylated phenanthridine derivatives through the photocatalytic radical cascade cyclization of -aryl...

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References & Citation Signals

[1] DOI https://doi.org/10.1021/acs.joc.5c02890 [2] Publisher https://pubmed.ncbi.nlm.nih.gov/41619195/

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External citation index: OpenAlex citation signal • updated 2026-06-14 09:54:37

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