The hyperbaric aza-Michael addition of mono-and diamines on α, β-unsaturated β, β- disubstituted mono-and diesters has been studied. While in the case of monoester, this reaction provides a β-aminoester presenting a quaternary center, a direct and efficient access to diester or lactams featuring an azanorbornyl skeleton was obtained when starting from a diester, following an unprecedented double aza-Michael addition.