title: Bidentate carbenoid ester coordination in ruthenium(II) Schiff-base complexes leading to excellent levels of diastereo- and enantioselectivity in catalytic alkene cyclopropanation.
abstract: Exceptionally high stereoselectivity (ee < or = 98%, dr < or = 99:1) in the cyclopropanation of alkenes with ethyl diazoacetate using a non-planar ruthenium(II) Schiff-base precatalyst is a result of eta 2C,O binding of the carbenoid ester intermediate, according to DFT calculations.
authors.affiliation: Department of Chemistry, University of Warwick, Coventry, UK CV4 7AL.
authors.forename: I J
authors.initials: IJ
authors.lastname: Munslow
authors.forename: K M
authors.initials: KM
authors.lastname: Gillespie
authors.forename: R J
authors.initials: RJ
authors.lastname: Deeth
authors.forename: P
authors.initials: P
authors.lastname: Scott