TY - JOUR
T1 - Heteropolyanion-based ionic liquid-functionalized mesoporous copolymer catalyst for Friedel-Crafts benzylation of arenes with benzyl alcohol
AU - Li, Jing
AU - Zhou, Yu
AU - Mao, Dan
AU - Chen, Guojian
AU - Wang, Xiaochen
AU - Yang, Xiaoning
AU - Wang, Meng
AU - Peng, Luming
AU - Wang, Jun
PY - 2014/10/15
Y1 - 2014/10/15
N2 - A new heteropolyanion-based acidic ionic liquid-functionalized mesoporous copolymer P(VB-VMS)PW was prepared by anion-exchange of 1,3-propanesulfonate poly(N-vinylimidazole-co-divinylbenzene) with Keggin 12-phosphotungstic acid. The obtained hybrid material was characterized by fourier transform infrared spectroscopy, thermogravimetry, nuclear magnetic resonance, scanning electron microscope, X-ray diffractometer, nitrogen sorption isotherm, elemental analysis and Hammett indicator. Its catalytic performance was assessed and compared with analogues in the Friedel-Crafts benzylation reaction between single-ring aromatic compounds with benzyl alcohol under solvent-free condition. Owning to the suitable mesoporous copolymeric structure, P(VB-VMS)PW showed a relatively high yield of benzylating products (96.7%), and it could be facilely recovered and reused. Besides, functionalization of the mesoporous ionic copolymer with heteropolyanion was able to enhance the structural stability and the acidity of the sulfonic group, favoring superior acid catalysis performance in benzylation reaction.
AB - A new heteropolyanion-based acidic ionic liquid-functionalized mesoporous copolymer P(VB-VMS)PW was prepared by anion-exchange of 1,3-propanesulfonate poly(N-vinylimidazole-co-divinylbenzene) with Keggin 12-phosphotungstic acid. The obtained hybrid material was characterized by fourier transform infrared spectroscopy, thermogravimetry, nuclear magnetic resonance, scanning electron microscope, X-ray diffractometer, nitrogen sorption isotherm, elemental analysis and Hammett indicator. Its catalytic performance was assessed and compared with analogues in the Friedel-Crafts benzylation reaction between single-ring aromatic compounds with benzyl alcohol under solvent-free condition. Owning to the suitable mesoporous copolymeric structure, P(VB-VMS)PW showed a relatively high yield of benzylating products (96.7%), and it could be facilely recovered and reused. Besides, functionalization of the mesoporous ionic copolymer with heteropolyanion was able to enhance the structural stability and the acidity of the sulfonic group, favoring superior acid catalysis performance in benzylation reaction.
KW - Friedel-Crafts reactions
KW - Heterogeneous catalysts
KW - Heteropolyacids
KW - Ionic copolymers
KW - Ionic liquids
KW - Mesoporous materials
UR - http://www.scopus.com/inward/record.url?scp=84902331281&partnerID=8YFLogxK
U2 - 10.1016/j.cej.2014.05.124
DO - 10.1016/j.cej.2014.05.124
M3 - 文章
AN - SCOPUS:84902331281
SN - 1385-8947
VL - 254
SP - 54
EP - 62
JO - Chemical Engineering Journal
JF - Chemical Engineering Journal
ER -