摘要
通过简单的一锅两步法制备了三氟金属(铝,钛,锆)接枝介孔SBA-15(AlTf/S,TiTf/S,ZrTf/S)固体酸材料,并通过XRD,N_2吸附,TGA,FTIR,原位吡啶FTIR和元素分析对这些材料进行了详细的表征.其中,ZrTf/S能够高效催化环氧化物温和条件下被胺或醇开环生成对应β-氨基醇或β-烷氧基醇,并且催化剂能循环利用.ZrTf/S相较于AlTf/S和TiTf/S酸性最强,因而催化活性也最高.
Metal(Al,Ti,Zr)triflate grafted mesoporous SBA‐15(AlTf/S,TiTf/S,ZrTf/S)samples were synthesizedas inexpensive solid acid materials by a simple one‐pot‐two‐step synthesis methodology.These materials were characterized by X‐ray diffraction,N2‐sorption,thermogravimetric analysis,Fourier transform infrared spectroscopy(FT‐IR),in‐situ pyridine FT‐IR spectroscopy,and elementalanalysis.ZrTf/S was found to be a highly efficient and reusable solid acid catalyst for ring opening ofepoxides with amines and alcohols and producedβ‐amino alcohols andβ‐alkoxy alcohols respectivelyunder ambient reaction conditions.The ZrTf/S catalyst showed the highest activity,whichwas attributed to its high acidity compared with that of the Ti and Al containing samples.
作者
Kamlesh N. Tayade
王连月
尚森森
戴文
Manish Mishra
高爽
Kamlesh N. Tayade;Lianyue Wang;Sensen Shang;Wen Dai;Manish Mishra;Shuang Gao(Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China;Department of Chemical Engineering And Shah‐Schulman Center for Surface Science and Nanotechnology, Faculty of Technology, Dharmsinh Desai University, Nadiad 387001, Gujarat, India)
基金
supported by the CAS President’s International Fellowship Initiative (2016PT028)
the National Natural Science Foundation of China (21273225 and 21403219)~~
关键词
环氧开环
酸催化
三氟金属
接枝催化剂
介孔硅
Epoxide ring opening
Acid catalysis
Metal triflate
Grafted catalyst
Mesoporous silica
