期刊
ADVANCED SYNTHESIS & CATALYSIS
卷 354, 期 18, 页码 3435-3439出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adsc.201200508
关键词
asymmetric synthesis; biphasic medium; cyclopropanation; ruthenium; water-soluble catalyst
资金
- Japan Society for the Promotion of Science [20550137]
- Grants-in-Aid for Scientific Research [20550137] Funding Source: KAKEN
The intramolecular cyclopropanation of various trans-allylic diazoacetates and alkenyl diazoketones has been achieved with excellent enantioselectivities of up to 98% ee and in quantitative yields by using a water-soluble ruthenium(II)/hydroxymethyl(phenyl)oxazoline catalyst in a water/ether biphasic medium. The catalyst could be reused at least five times.
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