Organocatalytic synthesis of (Het)biaryl scaffolds <i>via</i> photoinduced intra/intermolecular C(sp<sup>2</sup>)–H arylation by 2-pyridone derivatives
作者:Tapas Kumar Das、Mrinalkanti Kundu、Biswajit Mondal、Prasanjit Ghosh、Sajal Das
DOI:10.1039/d1ob01798e
日期:——
O-bidentate ligand 6-oxo-1,6-dihydro-pyridone-2-carboxylic acid dimethylamide (L1) catalyzed direct C(sp2)–H (intra/intermolecular) arylation of unactivated arenes has been developed to expedite access to (Het)biaryl scaffolds under UV-irradiation at room temperature. The protocol tolerated diverse functional groups and substitution patterns, affording the target products in moderate to excellent yields. Mechanistic
一种独特的N , O -二齿配体 6-oxo-1,6-dihydro-pyridone-2-carboxy acid dimethylamide ( L1 ) 催化直接 C(sp 2 )-H (intra/intermolecile) 芳烃芳基化在室温下的紫外线照射下加快获得 (Het) 联芳基支架。该协议容忍不同的功能组和替代模式,以中等至优异的产量提供目标产品。还进行了机理研究以更好地了解反应途径。此外,通过构建生物学相关的 4-喹诺酮、三环内酰胺和磺胺衍生物,展示了这种统一方法的合成适用性。