期刊
ACS CATALYSIS
卷 12, 期 4, 页码 2499-2504出版社
AMER CHEMICAL SOC
DOI: 10.1021/acscatal.1c05555
关键词
photocatalysis; hydrooxygenation; anti-Markovnikov; radicals; unactivated alkenes
资金
- International Graduate School for Battery Chemistry, Characterization, Analysis, Recycling and Application (BACCARA) - Ministry for Culture and Science of North Rhine Westphalia, Germany
- Deutsche Forschungsgemeinschaft (Leibniz Award)
- [SFB 858]
This study presents a visible-light-promoted strategy for the selective anti-Markovnikov hydrooxygenation of unactivated alkenes. A carefully designed reagent releases a highly reactive and strongly underdeveloped alkoxycarbonyloxyl radical upon reduction, which selectively adds into the alkenes. This methodology expands the toolbox for regioselective hydrofunctionalization and could serve as a complementary strategy to the established hydroboration/oxidation protocol.
Hydrofunctionalization of unactivated alkenes is an indispensable mean in synthetic chemistry. Given that addition of electrophilic species into alkenes intrinsically follows the Markovnikov rule, a regioselectivity switch presents a major challenge. Herein, we present a visible-light-promoted strategy for the selective anti-Markovnikov hydrooxygenation of unactivated alkenes. Therefore, an innovative reagent was carefully designed to release a highly reactive and strongly underdeveloped alkoxycarbonyloxyl radical upon reduction, which selectively adds into alkenes. Hydrogen atom abstraction from 2-phenylmalononitrile is the key to form the product. We believe that this methodology enlarges the toolbox for regioselective hydrofunctionalization and could serve as a complementary strategy to the established hydroboration/oxidation protocol.
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