Enantioselective reduction of ketones with trichlorosilane

ORGN 791

Andrei V. Malkov, amalkov@chem.gla.ac.uk, Angus J. P. Stewart-Liddon, A.Liddon@chem.gla.ac.uk, Pavel Kocovsky, and D. Haigh. Department of Chemistry, University of Glasgow, Glasgow, G12 8QQ, United Kingdom
We have shown that chiral pyridine-oxazolines catalyze the metal-free, trichlorosilane promoted reduction of aromatic ketones. This reaction furnishes enantiomerically enriched sec-alcohols in up to 68% enantiomeric excess. We will present results employing a range of different pyridine-oxazoline activators and investigations into their mode of action.