Ultrasound-Assisted Eco-Friendly Synthesis of Triarylmethanes Catalyzed by Silica Sulfuric Acid
I. Mohammadpoor-Baltorka,*, M. Moghadama,b, S. Tangestaninejada, V. Mirkhania, K. Mohammadiannejad-Abbasabadia and M.A. Zolfigolc
aCatalysis Division, Department of Chemistry, University of Isfahan, Isfahan 81746-73441, Iran
bDepartment of Nanotechnology Engineering, University of Isfahan, Isfahan 81746-73441, Iran
cDepartment of Chemistry, Bu-Ali Sina University, Hamadan 65175, Iran
An efficient and eco-friendly synthesis of triarylmethanes by the reaction of arenes with aldehydes in the presence of silica sulfuric acid as a heterogeneous and reusable catalyst under ultrasonic irradiation is reported. The advantages of this protocol are the use of green solvents, inexpensive catalyst, commercially available precursors, reusability of SSA, simple work-up, high yields and short reaction times.
Keywords: Triarylmethanes, Ultrasonic irradiation, Silica sulfuric acid, Reusable catalyst, Eco-friendly