Hydration of Epoxides on [CoIII(salen)] Encapsulated in Silica-Based Nanoreactors

Hydration of Epoxides on [CoIII(salen)] Encapsulated in Silica-Based Nanoreactors

A confined workspace has its benefits in the case of a non‐acid solid catalyst prepared by encapsulating [CoIII(salen)] in the nanocages of mesoporous silica. The catalytic activity and selectivity of [CoIII(salen)] were increased significantly owing to the enhanced cooperative activation effect in...

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Veröffentlicht in:Angewandte Chemie International Edition 2012-11, Vol.51 (46), p.11517-11521
Hauptverfasser: Li, Bo, Bai, Shiyang, Wang, Xuefeng, Zhong, Mingmei, Yang, Qihua, Li, Can
Format: Artikel
Sprache:eng
Schlagworte:
Catalysis
cobalt
Cobalt - chemistry
cooperative activation
epoxide hydration
Epoxy Compounds - chemistry
Ethylenediamines - chemistry
green chemistry
Green Chemistry Technology
nanoreactors
Nanostructures - chemistry
Porosity
Silicon Dioxide - chemistry
Water - chemistry
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Zusammenfassung:A confined workspace has its benefits in the case of a non‐acid solid catalyst prepared by encapsulating [CoIII(salen)] in the nanocages of mesoporous silica. The catalytic activity and selectivity of [CoIII(salen)] were increased significantly owing to the enhanced cooperative activation effect in the nanoreactors. Thus, ethylene oxide (EO) underwent hydration at a low 2:1 H2O/EO molar ratio to give ethylene glycol in up to 96 % yield.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201203774