TY - JOUR

T1 - Heterogenized Ionic-Liquid Metal-Oxide Hybrids: Enhanced Catalytic Activity in the Liquid-Phase Beckmann Rearrangement

AU - Annath, H.

AU - Chapman, S.

AU - Donnelly, G.F.

AU - Marr, P.C.

AU - Marr, A.C.

AU - Raja, R.

PY - 2018/12/3

Y1 - 2018/12/3

N2 - 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.

AB - 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.

KW - Beckmann rearrangement

KW - Caprolactam

KW - Hierarchical oxides

KW - Hydrophobic surface

KW - Ionic-liquid hybrids

UR - http://www.scopus.com/inward/record.url?eid=2-s2.0-85057585176&partnerID=MN8TOARS

U2 - 10.1021/acssuschemeng.8b04073

DO - 10.1021/acssuschemeng.8b04073

M3 - Journal article

VL - 6

SP - 16797

EP - 16805

JO - ACS Sustainable Chemistry and Engineering

JF - ACS Sustainable Chemistry and Engineering

SN - 2168-0485

IS - 12

ER -