Heterogenized ionic liquid-metal oxide hybrids: enhanced catalytic activity in the liquid-phase Beckmann rearrangement
Heterogenized ionic liquid-metal oxide hybrids: enhanced catalytic activity in the liquid-phase Beckmann rearrangement
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DOI：
10.1021/acssuschemeng.8b04073
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发表时间：
2018-10
影响因子：
8.4
通讯作者：
Hamza Annath;S. Chapman;Gerald F. Donnelly;P. C. Marr;A. C. Marr;R. Raja
中科院分区：
文献类型：
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作者：
Hamza Annath;S. Chapman;Gerald F. Donnelly;P. C. Marr;A. C. Marr;R. Raja
我们报道了稳定的离子-液体杂化材料的设计，这种杂化材料共价锚定在微孔和分级固体载体的框架结构上。固定在骨架上的离子-液体部分促进了强化的传质，并在低温下对环肟的Beckmann重排提供了优异的催化性能。离子-液体-金属氧化物(IL-MO)杂化化合物在改变反应途径方面也起到了重要作用，协同催化性能的增强归因于锚定的咪唑基离子液体疏水性的增加。
We report the design of stable, ionic-liquid hybrids, covalently anchored to the framework architectures of microporous and hierarchical solid supports. The ionic-liquid moieties that are anchored to the framework facilitate enhanced mass transport and afford superior catalytic performance in the Beckmann rearrangement of cyclic oximes at low temperatures. The ionic-liquid–metal oxide (IL-MO) hybrids also play an important role in modifying the reaction pathway, and synergistic enhancements in catalytic properties are attributed to the increased hydrophobicity of the anchored, imidazolium-based ionic liquid.