SEARCH Articles Figures Tables Aldol reactions lithium enolates Direct aldol reaction Direct reactions Directed aldol reaction Directed reactions Enolate lithium Enolates aldol reactions Enolates lithium Enols aldol reactions Lithium aldol Lithium enolates directed aldol reaction Lithium enolates reactions Preformation Preformed enolates Preforming Preforms Reaction direct reactions Reaction direction