期刊
CHEMICAL SCIENCE
卷 10, 期 12, 页码 3459-3465出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8sc05677c
关键词
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资金
- JSPS KAKENHI [JP17H06442, 17H01522, 17K19479, 18H05969, 17H0310, 16K13964, 18H04650]
- Grants-in-Aid for Scientific Research [17H01522, 17K19479, 18H04650, 18H05969] Funding Source: KAKEN
We describe a hybrid system that realizes cooperativity between an organophotoredox acridinium catalyst and a chiral chromium complex catalyst, thereby enabling unprecedented exploitation of unactivated hydrocarbon alkenes as precursors to chiral allylchromium nucleophiles for asymmetric allylation of aldehydes. The reaction proceeds under visible light irradiation at room temperature, affording the corresponding homoallylic alcohols with a diastereomeric ratio >20/1 and up to 99% ee. The addition of Mg(ClO4)(2) markedly enhanced both the reactivity and enantioselectivity.
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