List of Articles Mohammad Ali Zolfigol Article 1 - Study of an in situ carbocationic system formed from trityl chloride (Ph3CCl) as an efficient organocatalyst for the condensation of dimedone with arylaldehydes Abdolkarim Zare Maria Merajoddin Mohammad Ali Zolfigol Iranian Journal of Catalysis , Issue 2 , Year , Spring 2013 Article 2 - Melamine trisulfonic acid (MTSA) as an efficient catalyst for the synthesis of triazolo[1,2-a]indazole-triones and some 2H-indazolo[2,1-b]phthalazine-triones Ardeshir Khazaei Mohammad Ali Zolfigol Toktam Faal Rastegar Gholamabbas Chehardoli Shadpour Mallakpour Iranian Journal of Catalysis , Issue 5 , Year , Autumn 2013