
New zirconium hydrogen phosphate alkyl and/or aryl phosphonates with high surface area as heterogeneous Brønsted acid catalysts for aza-Diels–Alder reaction in aqueous medium
Keywords: آب آبی; Brønsted acid catalysis; Heterogeneous catalysis; Zirconium phosphate; Aza-Diels–Alder reaction; Aqueous medium