77929-17-0Relevant articles and documents
Enantioselective reduction of ketones by borane catalysed by oxazaphospholidine oxides
Chiodi, Olivier,Fotiadu, Frederic,Sylvestre, Maud,Buono, Gerard
, p. 39 - 42 (1996)
New enantioselective catalysts for the asymmetric reduction of ketones by borane are described. Easily prepared by oxidation of chiral oxazaphospholidines, these compounds increase sensitively the reduction rate of numerous ketones and induce ee's up to 94% in the case of the 2-chloroacetophenone.
New chiral phosphinamide catalysts for highly enantioselective reduction of ketones
Gamble, Mark P.,Studley, John R.,Wills, Martin
, p. 2853 - 2856 (2007/10/03)
A novel class of recoverable and highly stable phosphinamide catalysts for the asymmetric reduction of ketones by borane is described. Enantiomeric excesses of up to 92% have been obtained using 10 mol% of the optimum catalyst.