Novel silica sodium carbonate (SSC): Preparation, characterization and its first catalytic application to the synthesis of new dihydropyrano[2,3-c]pyrazoles
作者:Khalil Eskandari、Bahador Karami、Saeed Khodabakhshi
DOI:10.1016/j.catcom.2014.05.029
日期:2014.9
novel and highly efficient catalyst was produced from a reaction between silica chloride and sodium hydrogen carbonate. This novel catalyst was named silica sodium carbonate (SSC), and was characterized by FT-IR, XRD, XRF and TG-DT analyses, atomic absorption and titration with HCl (0.01 N). Furthermore, herein, the first application of SSC as a green, highly efficient and recyclable catalyst to the synthesis
在这项研究中,新型的高效催化剂是由氯化硅与碳酸氢钠之间的反应制得的。这种新型催化剂称为二氧化硅碳酸钠(SSC),并通过FT-IR,XRD,XRF和TG-DT分析,原子吸收和HCl(0.01 N)滴定进行表征。此外,在本文中,成功地检验了SSC作为绿色,高效且可循环使用的催化剂在合成新的1,4-二氢吡喃并[2,3-c]吡唑中的首次应用。与经典的合成1,4-二氢吡喃并[2,3-c]吡唑的反应相比,本方法使用SSC的方法比其他方法具有一些优势,例如,产品收率高,反应时间短,绿色环保,操作简便。催化剂的处理和可重复使用性。