Nanoceria as an efficient and green catalyst for the chemoselective N-tert-butyloxycarbonylation of amines under the solvent-free conditions

Nanocerium oxide mediated an efficient and green protocol has been described for the chemoselective N-tert-butyloxycarbonylation of amines under solvent-free conditions at ambient temperature. Various aliphatic, aromatic heteroaromatic were protected using developed several functional groups such as alcohol, phenol ester well tolerated these conditions. The rapid reaction rate, mild conditions, very good group tolerance, excellent yield, solvent-free, easy recovery products catalyst recyclability are advantages this protocol. This makes feasible, economical environmentally benign.