Silica-bonded 1,4-diaza-bicyclo[2.2.2]octane-sulfonic acid chloride catalyzed synthesis of spiropyran derivatives
作者:Ahmad Reza Moosavi-Zare、Mohammad Ali Zolfigol、Ehsan Noroozizadeh、Rasoul Salehi-Moratab、Mahmoud Zarei
DOI:10.1016/j.molcata.2016.04.021
日期:2016.8
Abstract In this research, a novel nanostructured heterogeneous catalyst, namely silica-bonded 1,4-diaza-bicyclo[2.2.2]octane-sulfonic acid chloride (SBDBSAC), as an acidic ionic liquid based on 1,4-diaza-bicyclo[2.2.2]octane ring bonded to silica has been prepared and fully characterized by several techniques such as fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), thermogravimetric