title: Methyl/ethyl differentiation in diastereoselective hydride addition to [Tp'W(CO)(PhCCMe)(NH=CMeEt)][BAr'(4)].
abstract: Hydride addition to either an 80:20 or a 93:7 E/Z isomer ratio of coordinated imine complex 2a occurs with high diastereoselectivity. The high diastereoselectivity regardless of the reagent E/Z ratio is explained by a difference between the relative kinetic acidities of the E and Z isomers of the imine complex. The kinetic acidities of related isopropylimine and 3-pentylimine complexes were used in explaining these results.
authors.affiliation: Department of Chemistry, University of North Carolina, Chapel Hill, North Carolina 27599-3290, USA.
authors.forename: Neil J
authors.initials: NJ
authors.lastname: Vogeley
authors.forename: Peter S
authors.initials: PS
authors.lastname: White
authors.forename: Joseph L
authors.initials: JL
authors.lastname: Templeton