Tetrahedron Asymmetry p. 165 - 168 (1994)
Update date:2022-08-11
Topics:
Berenguer
Garcia
Vilarrasa
(R)-B-methyl-4,5,5-triphenyl-1,3,2-oxazaborolidine (1) and (R)-B-allyl- 4,5,5-triphenyl-1,3,2-oxazaborolidine (2), prepared from (R)-phenylglycine, catalyse the reduction of prochiral ketones with borane, to afford the corresponding secondary alcohols in good chemical yields and with moderate to high (61%-96%) enantiomeric excesses. These compounds gave the best results reported so far regarding the reduction of linear alkyl methyl ketones catalysed by oxazaborolidines.
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