Acyl Radicals from α-Keto Acids Using a Carbonyl Photocatalyst: Photoredox-Catalyzed Synthesis of Ketones
作者:Da-Liang Zhu、Qi Wu、David James Young、Hao Wang、Zhi-Gang Ren、Hong-Xi Li
DOI:10.1021/acs.orglett.0c02351
日期:2020.9.4
Acyl radicals have been generated from α-keto acids using inexpensive and commercially available 2-chloro-thioxanthen-9-one as the photoredox catalyst under visible light illumination. These reactive species added to olefins or coupled with aryl halides via a bipyridyl-stabilized Ni(II) catalyst, enabling easy access to a diverse range of ketones. This reliable, atom-economical, and eco-friendly protocol
在可见光照射下,使用廉价且可商购的2-氯-噻吨酮-9-作为光氧化还原催化剂,已由α-酮酸生成了酰基基团。这些反应性物质通过联吡啶基稳定的Ni(II)催化剂添加到烯烃中或与芳基卤化物偶合,可轻松获得各种酮。这种可靠,原子经济且环保的协议可与多种官能团兼容。