A comparison of the oxidation of lignin model compounds in conventional and ionic liquid solvents and application to the oxidation of lignin

Soledad G. Yao; Mark S. Meier; Robert B. Pace; Mark Crocker

doi:10.1039/c6ra18806k

A comparison of the oxidation of lignin model compounds in conventional and ionic liquid solvents and application to the oxidation of lignin

Soledad G. Yao, Mark S. Meier, Robert B. Pace, Mark Crocker

Chemistry

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17 Scopus citations

Abstract

The oxidation of lignin model compounds was studied in conventional solvents in parallel with oxidations in ionic liquid solvents. Catalyst systems were investigated in ionic liquid solvents to determine how reaction rates and the selectivity for benzylic carbon oxidation were affected. Oxidation rates were often lower in ionic liquids than in conventional solvents-as indicated by lower conversion in a standard reaction time-likely due, at least in part, to the higher viscosity of ionic liquids. Selectivity of the TPPFeCl/t-BuOOH catalyst system for oxidation of the benzylic C-OH versus benzylic C-H was higher in the ionic liquids tested than in conventional solvents.

Original language	English
Pages (from-to)	104742-104753
Number of pages	12
Journal	RSC Advances
Volume	6
Issue number	106
DOIs	https://doi.org/10.1039/c6ra18806k
State	Published - 2016

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Publisher Copyright:
© The Royal Society of Chemistry 2016.

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering

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abstract = "The oxidation of lignin model compounds was studied in conventional solvents in parallel with oxidations in ionic liquid solvents. Catalyst systems were investigated in ionic liquid solvents to determine how reaction rates and the selectivity for benzylic carbon oxidation were affected. Oxidation rates were often lower in ionic liquids than in conventional solvents-as indicated by lower conversion in a standard reaction time-likely due, at least in part, to the higher viscosity of ionic liquids. Selectivity of the TPPFeCl/t-BuOOH catalyst system for oxidation of the benzylic C-OH versus benzylic C-H was higher in the ionic liquids tested than in conventional solvents.",

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AU - Pace, Robert B.

AU - Crocker, Mark

N1 - Publisher Copyright: © The Royal Society of Chemistry 2016.

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Y1 - 2016

N2 - The oxidation of lignin model compounds was studied in conventional solvents in parallel with oxidations in ionic liquid solvents. Catalyst systems were investigated in ionic liquid solvents to determine how reaction rates and the selectivity for benzylic carbon oxidation were affected. Oxidation rates were often lower in ionic liquids than in conventional solvents-as indicated by lower conversion in a standard reaction time-likely due, at least in part, to the higher viscosity of ionic liquids. Selectivity of the TPPFeCl/t-BuOOH catalyst system for oxidation of the benzylic C-OH versus benzylic C-H was higher in the ionic liquids tested than in conventional solvents.

AB - The oxidation of lignin model compounds was studied in conventional solvents in parallel with oxidations in ionic liquid solvents. Catalyst systems were investigated in ionic liquid solvents to determine how reaction rates and the selectivity for benzylic carbon oxidation were affected. Oxidation rates were often lower in ionic liquids than in conventional solvents-as indicated by lower conversion in a standard reaction time-likely due, at least in part, to the higher viscosity of ionic liquids. Selectivity of the TPPFeCl/t-BuOOH catalyst system for oxidation of the benzylic C-OH versus benzylic C-H was higher in the ionic liquids tested than in conventional solvents.

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A comparison of the oxidation of lignin model compounds in conventional and ionic liquid solvents and application to the oxidation of lignin

Abstract

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