%0 Journal Article %T L-Cysteine-functionalized ZnS Nanoparticles as a Catalyst for the Synthesis of β-amino Carbonyl Compound via MCR Mannich Reaction %A Narjes Alamolhodaei %A Eshghi, Hossein %A Hossein Massoudi %J Organic Chemistry Research %@ 2383-242X %D 2019