The Preparation and Reactions of Anions of Certain Schiff Bases

Abstract We have recently reported the facile preparation of C(α)-multiple anions of oximes2, phenylhydrazones3, hydraxones4, and acylhydrazones5. In each case the C(α)-carbanion reacted with electrophilic reagents such as aromatic esters, an alphatic diester6, acid chlorides7, aldehydes8, ketones9, carbon dioxide10, and nitriles11 (Scheme I).