... Tetrahedron Letters. Volume 25, Issue 21, 1984, Pages 2279–2282. Cover image Cover image. Enolboronates: New practical reagents for regioselective aldol condensations. ... Received 19 March 1984, Available online 5 March 2001. Abstract. Enolboronates, new enolates directly accessible from carbonyl compounds and giving aldol products regioselectively and in good yield with aliphatic and aromatic aldehydes, are described. References. ...