TY - GENERIC DO - 10.20944/preprints202105.0493.v1 UR - http://dx.doi.org/10.20944/preprints202105.0493.v1 TI - Pumice as a Novel Nature Heterogeneous Catalyst for Synthesis of 3,4-dihydropyrimidine-2-(1H)-Ones/Thiones via Biginelli Reaction under Solvent-free Conditions T2 - Preprints AU - Al-Wahaibi, Lamya H. AU - Abdelhamid, Antar A. AU - Saber, Sayed A. AU - Elkanzi, Nadia A.A. AU - Ali, Ali M. PY - 2021 DA - 2021/05/20 PB - Preprints