ChemInform Abstract: A Green Synthesis of 3, 4‐Dihydropyrimidine‐2(1H)‐one/thione Derivatives Using Nanosilica‐Supported Tin(II) Chloride as a Heterogeneous Nanocatalyst. Issue 16 (22nd April 2014) - Ghomi, Javad Safaei; Teymuri, Raheleh; Ziarati, Abolfazl