Mg(ClO4)2 as a Powerful Catalyst for the Acylation of Alcohols under Solvent-Free Conditions - Bartoli, Giuseppe; Bosco, Marcella; Dalpozzo, Renato; Marcantoni, Enrico; Massaccesi, Massimo; Rinaldi, Samuele; Sambri, Letizia (Synlett, 2003)