Piperazine-promoted gold-catalyzed hydrogenation: the influence of capping ligands - Fiorio, Jhonatan Luiz; Barbosa, Eduardo Cesar Melo; Kikuchi, Danielle Kimie; Camargo, Pedro Henrique Cury de; Rudolph, Matthias; Hashmi, Stephen K; Rossi, Liane Marcia (Catalysis Science & Technology, 2020)