List of Articles Bentonite (Al2O3.4SiO.H2) Open Access Article Abstract Page Full-Text 1 - Synthesis of Arylidene (thio)barbituric Acid Derivatives using Bentonite as a Natural and Reusable Catalyst in Green Media Mahdieh Yahyazadehfar Sayed Ali Ahmadi Enayatollah Sheikhhosseini Dadkhoda Ghazanfari