Photoinduced Phenolate Organocatalysis for Isoindoloindolone Synthesis with N-Iodobenzoyl Indoles
Annaram Thirupathi1, Su Bin Yoon1, Eun Joo Kang1
1Department of Applied Chemistry, Kyung Hee University, Yongin 17104, Korea.
Abstract:
An efficient photoinduced phenolate organocatalytic methodology for the synthesis of isoindoloindolones was developed, demonstrating a broad substrate scope with high yields and excellent functional group tolerance. Mechanistic studies confirmed a direct single-electron transfer pathway facilitated by an excited phenolate catalyst to N-iodobenzoyl indoles, validated through UV-vis spectroscopy, fluorescence quenching, and cyclic voltammetry. This approach enables the synthesis of biologically significant derivatives including melatonin MT3 and 5-HT6 receptor ligands.
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