Catalytic Use of a Boron Source for Boron Enolate Mediated Stereoselective Aldol Reactions in Water

Angew Chem Int Ed Engl. 2001 Aug 3;40(15):2815-2818. doi: 10.1002/1521-3773(20010803)40:15<2815::AID-ANIE2815>3.0.CO;2-F.

Abstract

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.