Use of boron enolates in water! Boron enolates can be generated and used for aldol reactions in water by using a catalytic amount of Ph2 BOH. This is the first example of a catalytic use of a boron source in stereoselective aldol reactions mediated by boron enolates. The mechanism of the reaction is discussed.
Keywords: aldehydes; aldol reaction; boron; diastereoselectivity.
© 2001 WILEY-VCH Verlag GmbH, Weinheim, Fed. Rep. of Germany.