期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 24, 期 18, 页码 4552-4555出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201800813
关键词
carboxylic acids; decarboxylation; Heck-type coupling; palladium; redox-active esters
资金
- Deutsche Forschungsgemeinschaft (Leibniz Award)
- NRW Graduate School of Chemistry
The palladium-catalyzed coupling reaction of N-hydroxyphthalimide esters and styrenes to deliver exclusively (E)-substituted olefins under irradiation with visible light is reported. This method tolerates N-hydroxyphthalimide esters derived from primary, secondary, tertiary as well as benzylic carboxylic acids. Notably, Pd(PPh3)(4) is employed as an inexpensive palladium source and no addition of base or classical photocatalyst is required. Mechanistic studies suggest a light-mediated single-electron reduction of the activated acid by a photoexcited palladium(0) species to access alkyl radicals through decarboxylation.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据