Rj. Mears et A. Whiting, DIRECTED ASYMMETRIC REDUCTION OF A CARBONYL GROUP VIA A NEW HOMOCHIRAL BORONATE ESTER, Tetrahedron letters, 34(50), 1993, pp. 8155-8156
Homochiral beta-boronate carbonyl derivative 4 directs the asymmetric
reduction of the ketone moiety, providing 89 % enantiomeric excess of
the (S)-diol 6, using borane-tetrahydrofuran as the reducing agent.