Encapsulation of Crabtree's Catalyst in Sulfonated MIL-101(Cr): Enhancement of Stability and Selectivity between Competing Reaction Pathways by the MOF Chemical Microenvironment

Grigoropoulos, Alexios ORCID: 0000-0002-3108-7052, Mckay, Alasdair I, Katsoulidis, Alexandros P ORCID: 0000-0003-0860-7440, Davies, Robert P, Haynes, Anthony, Brammer, Lee, Xiao, Jianliang ORCID: 0000-0003-2010-247X, Weller, Andrew S and Rosseinsky, Matthew J ORCID: 0000-0002-1910-2483 (2018) Encapsulation of Crabtree's Catalyst in Sulfonated MIL-101(Cr): Enhancement of Stability and Selectivity between Competing Reaction Pathways by the MOF Chemical Microenvironment. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 57 (17). pp. 4532-4537.

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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.

Item Type:	Article
Uncontrolled Keywords:	allylic alcohols, Crabtree's catalyst, encapsulation, hydrogenation, metal-organic frameworks
Depositing User:	Symplectic Admin
Date Deposited:	03 Apr 2018 15:44
Last Modified:	19 Jan 2023 06:37
DOI:	10.1002/anie.201710091
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3019631