SEARCH Articles Figures Tables 1,4-Naphthoquinone, 2-hydroxyreaction with acetaldehyde and amines Mannich reaction Aminals Mannich reaction Amines Mannich reaction with Amines Petasis borono-mannich reaction Chiral Amines as Catalysts in Asymmetric Mannich Reactions Chiral amine catalysts Mannich reactions Mannich bases amine exchange reactions