期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 57, 期 17, 页码 4532-4537出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201710091
关键词
allylic alcohols; Crabtree's catalyst; encapsulation; hydrogenation; metal-organic frameworks
资金
- UK Catalysis Hub Consortium [EP/K014706/1, EP/K014668/1, EP/K014854/1, EP/K014714/1, EP/M013219/1]
- EPSRC [EP/M024210/1]
- EPSRC [EP/K014668/1, EP/K014854/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/K014854/1, EP/K014668/1, EP/M024210/1] Funding Source: researchfish
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.
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