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◆ JACS Au2026-08-24

Direct Access to the Simplest N‑Substituted Pyrroles from Furans Enabled by Tailored Photocatalysts.

Hyeonbhin Byeon, Hojin Hong, Da Hye Lee, Yoonjee Park, Taeyang Ha, Ha Eun Kim, Yoonsu Park

原始摘要(英文原文)· Original abstract
N-Methylpyrroles are important motifs in pharmaceuticals and biologically relevant compounds, yet their synthesis commonly relies on direct N-methylation of N-H pyrroles, a process often limited by the instability of pyrrole and the use of toxic alkylating reagents under harsh conditions. Herein, we report a photocatalytic strategy for the direct conversion of readily available furans to N-methylpyrroles. The reaction efficiency was markedly improved compared to the first-generation catalytic protocol through the development of tailored photocatalysts. Combining skeletal editing with continuous-flow photochemistry, this method provides efficient access to N-methylpyrroles under mild conditions while avoiding preformed N-H pyrrole substrates and conventional methylating agents. The utility of the protocol was further demonstrated through the late-stage diversification of structurally complex molecules.
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Direct Access to the Simplest N‑Substituted Pyrroles from Furans Enabled by Tailored Photocatalysts. — 科研速览 Science Skim