4.7 Article

Asymmetric cyclopropanation in protic media conducted by chiral bis(hydroxymethyl-dihydrooxazolyl)pyridine-ruthenium catalysts

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CHEMICAL COMMUNICATIONS
卷 -, 期 1, 页码 59-60

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ROYAL SOC CHEMISTRY
DOI: 10.1039/b008516m

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Cyclopropanation of styrene with diazoacetates, performed in aqueous/organic biphasic media or homogeneous alcoholic media in the combination of toluene by using chiral bis(hydroxymethyldihydrooxazolyl)pyridine-ruthenium catalyst, resulted in high enantiomeric excess up to 96-97% and trans:cis stereoselectivity to 97:3.

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