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Hydrogenation of ethylene carbonate catalyzed by lutidine-bridged N-heterocyclic carbene ligands and ruthenium precursors

Paper ID Volume ID Publish Year Pages File Format Full-Text
49241 46726 2016 4 PDF Available
Title
Hydrogenation of ethylene carbonate catalyzed by lutidine-bridged N-heterocyclic carbene ligands and ruthenium precursors
Abstract

•NHC ligands and Ru precursors were effective in hydrogenation of ethylene carbonate.•The high activity was ascribed to the in situ formation of Ru-NHC complexes.•The facile catalytic system provided a new method for the indirect conversion of CO2.

A series of air and moisture-stable lutidine-bridged N-heterocyclic carbene (NHC) ligands and commercial Ru precursors were applied as catalysts for hydrogenation of ethylene carbonate to glycol and methanol. N-Butyl-substituted CNC-pincer ligand L1 and RuHCl(CO)(PPh3)3 catalytic system exhibited the highest catalytic activity with 99% conversion of ethylene carbonate, 92% glycol and 42% methanol yields. The high catalytic activity was attributed to the in-situ formation of Ru-NHC complexes in the presence of base. This facile, stable and efficient catalytic system provided a new method for the indirect conversion of CO2.

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Keywords
N-heterocyclic carbenes; Ru-NHC complexes; Ethylene carbonate; Hydrogenation; CO2
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Hydrogenation of ethylene carbonate catalyzed by lutidine-bridged N-heterocyclic carbene ligands and ruthenium precursors
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 85, 5 October 2016, Pages 57–60
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
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