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- Title
Encapsulation of Crabtree's Catalyst in Sulfonated MIL‐101(Cr): Enhancement of Stability and Selectivity between Competing Reaction Pathways by the MOF Chemical Microenvironment.
- Authors
Grigoropoulos, Alexios; McKay, Alasdair I.; Katsoulidis, Alexandros P.; Davies, Robert P.; Haynes, Anthony; Brammer, Lee; Xiao, Jianliang; Weller, Andrew S.; Rosseinsky, Matthew J.
- Abstract
Abstract: Crabtree's catalyst was encapsulated inside the pores of the sulfonated MIL‐101(Cr) metal–organic framework (MOF) by cation exchange. This hybrid catalyst is active for the heterogeneous hydrogenation of non‐functionalized alkenes either in solution or in the gas phase. Moreover, encapsulation inside a well‐defined hydrophilic microenvironment enhances catalyst stability and selectivity to hydrogenation over isomerization for substrates bearing ligating functionalities. Accordingly, the encapsulated catalyst significantly outperforms its homogeneous counterpart in the hydrogenation of olefinic alcohols in terms of overall conversion and selectivity, with the chemical microenvironment of the MOF host favouring one out of two competing reaction pathways.
- Subjects
CRABAPPLES; CHEMICAL stability; METAL-organic frameworks; HETEROGENEOUS catalysis; HYDROGENATION; HYDROPHILIC compounds
- Publication
Angewandte Chemie, 2018, Vol 130, Issue 17, p4622
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.201710091