Mp. Gamble et al., NEW CHIRAL PHOSPHINAMIDE CATALYSTS FOR HIGHLY ENANTIOSELECTIVE REDUCTION OF KETONES, Tetrahedron letters, 37(16), 1996, pp. 2853-2856
A novel class of recoverable and highly stable phosphinamide catalysts
for the asymmetric reduction of ketones by borane is described. Enant
iomeric excesses of up to 92% have been obtained using 10 mol% of the
optimum catalyst. Copyright (C) 1996 Elsevier Science Ltd.