作者:Rehanguli Ruzi、Junyang Ma、Xiang‐Ai Yuan、Wenliang Wang、Shanshan Wang、Muliang Zhang、Jie Dai、Jin Xie、Chengjian Zhu
DOI:10.1002/chem.201903816
日期:2019.10
phosphoranyl radical chemistry allows for precise cleavage of a stronger C-O bond and formation of a weaker C-C bond by 1,5-aryl migration under mild reaction conditions. This new protocol is independent of substrate redox-potential, electronic, and substituent effects. It affords a general and promising access to 60 examples of synthetically versatile o-amino and o-hydroxy diaryl ketones under redox-neutral
已经实现了前所未有的芳香族羧酸脱氧芳基化反应,从而可以构建增强的不对称二芳基酮库。协同的光氧化还原催化作用和磷烷基自由基化学反应可在温和的反应条件下,通过1,5-芳基迁移,精确裂解更强的CO键并形成较弱的CC键。此新协议独立于底物氧化还原电势,电子和取代基效应。在氧化还原中性条件下,它提供了60种合成通用的邻氨基和邻羟基二芳基酮的通用且有希望的途径。此外,以令人满意的产率,它也为全合成喹诺酮生物碱,(±)-yaequinolone A2和viridicatin衍生物提供了一条简洁的途径。