Journal
POLYHEDRON
Volume 114, Issue -, Pages 422-427Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.poly.2016.02.033
Keywords
Metal-organic frameworks; N-heterocyclic carbene; Organocatalysis; Transesterification; Bromination
Categories
Funding
- Research Associates (PLNU)
- Inamori Foundation
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Two imidazolium-tagged biphenyldicarboxylates were synthesized and incorporated into the UiO-67 framework. Post synthetic exchange did not prove a useful route to these materials. Alternatively, mixed-linker synthesis of the solid afforded materials loaded with 6-7% imidazolium linker, corresponding to fewer than one active site per cage. Powder X-ray diffraction patterns for the doped metal-organic frameworks (MOFs) revealed that they were isostructural with UiO-67. Once activated, the N-heterocylic carbene (NHC) containing MOF was found to catalyze the transesterification of vinyl acetate with benzyl alcohol in good yield. The catalyst could be recycled with a modest drop in conversion. This is the first report of a NHC-doped MOF acting as an organocatalyst. (C) 2016 Elsevier Ltd. All rights reserved.
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