Phosphotungstic acid grafted zeolite imidazolate framework as an effective heterogeneous nanocatalyst for the one‐pot solvent‐free synthesis of 3,4‐dihydropyrimidinones

Tayebee, Reza; Fattahi Abdizadeh, Mojtaba; Erfaninia, Nasrin; Amiri, Amirhassan; Baghayeri, Mehdi; Kakhki, Roya Mohammadzadeh; Maleki, Behrooz; Esmaili, Effat