Porous Acidic Catalyst, Functionalized with Imidazole Ionic Liquid ([SBA-Im]HSO4) as a Novel Phase Transfer Catalyst for The Aqueous Synthesis of Benzyl Thiocyanates and Azides

Abstract

In the present study, application of porous acidic catalyst functionalized with an imidazole<br />ionic liquid ([SBA-Im]HSO4) as a phase transfer catalyst for the facile preparation of benzyl<br />thiocyanates and azides in water has been described. The catalyst has been characterized by<br />Fourier transform infrared spectroscopy (FT-IR), scanning electron microscope (SEM), transmission<br />electron microscopy (TEM), thermogravimetric analysis (TGA) and derivative thermogravimetric<br />analysis (DTG). The polymeric phase transfer catalyst, easily recovered by simple<br />filtration, shows no appreciable loss of activity when recycled several times.