Article
Licensed
Unlicensed
Requires Authentication
Effect of Oxygen Pressure on the Oxidation of Syringyl Alcohol Initiated by Manganese(III) Acetate
-
Tomoko Sugimoto
Published/Copyright:
June 1, 2005
Summary
A simple phenolic lignin model compound (syringyl alcohol, SA) was subjected to the reaction with a one-electron oxidizing reagent, Mn3+ (manganese(III) acetate), in a weakly acidic aqueous medium or in acetic acid medium under various oxygen pressure (0 to 1.0 MPa). Yields of the reaction products, especially that of methanol, were used to evaluate the progress of oxidation reaction and the difference of oxidation mechanism due to the presence of molecular oxygen. The difference in the oxygen pressure did not result in any detectable difference in reaction products, suggesting that molecular oxygen did not participate in the oxidation process which were initiated by one-electron abstraction from phenolic hydroxyl group. Contrary to this, a clear effect of oxygen pressure on the methanol yield was observed when methanol was determined after the reaction mixture being subjected to the alkali post-treatment. This is attributed to the generation of some active species from the reaction of Mn2+ with molecular oxygen and to the simple oxygen-alkali oxidation.
:
Published Online: 2005-06-01
Published in Print: 2000-04-13
Copyright © 2000 by Walter de Gruyter GmbH & Co. KG
You are currently not able to access this content.
You are currently not able to access this content.
Articles in the same Issue
- Molecular Methods for the Characterization and Identification of the Dry Rot Fungus Serpula lacrymans
- Use of Soft Rot Fungi for Studies on the Microstructure of Kapok (Ceiba pentandra (L.) Gaertn.) Fibre Cell Walls
- Ultrastructural Changes in the Compound Middle Lamella of Pinus thunbergii During Lignification and Lignin Removal
- Comparison of the Antifungal Activity of Cadinane Skeletal Sesquiterpenoids from Taiwania (Taiwania cryptomerioides Hayata) Heartwood
- Characterization of the Polyphenolics Related to the Colour of Western Red Cedar (Thuja plicata Donn) Heartwood
- Influence of Botanical Species and Geographical Origin on the Content of Low Molecular Weight Phenolic Compounds of Woods Used in Portuguese Cooperage
- Effect of Oxygen Pressure on the Oxidation of Syringyl Alcohol Initiated by Manganese(III) Acetate
- Potential Catalysts for the Acetylation of Wood
- Quantification of Muconic Acid-Type Structures in High Molecular Weight Material from Bleach Plant Effluents
- The Effects of the Order of Chemical Addition on the Peroxide Bleaching of an Oxygen-Delignified Softwood Kraft Pulp
- Effects of Thermo-Hydro-Mechanical Treatment on the Structure and Properties of Wood
- Improvement of Heartwood Color of Black-Colored Sugi (Cryptomeria japonica D. Don) by UV Irradiation after Smoke Heating
- Analysis of the Wood Sorption Isotherm Using the Theory of Micropore Volume Filling
- Acoustic Emission Generated upon Mechano-Sorptive Creep of Wood Bent Across to the Grain under Asymmetrical Moistening
- Experimental Data Correction of the Dynamic Elastic Moduli, Velocity and Density of Solid Wood as a Function of Moisture Content above the Fiber Saturation Point
- Contractive Force and Transformation of Microfibril with Aqueous Sodium Hydroxide Solution for Wood
- Dielectric Relaxation Based on Adsorbed Water in Wood Cell Wall under Non-Equilibrium State. 1
- Stabilizing Effect of Chromated Salt Treatment on the Green Color of Ma Bamboo (Dendrocalamus latiflorus)
- Microwave-Enhanced Transport of Chemicals into Green Wood under Low-Headspace Conditions
- Personalia: Günther Stegmann in memoriam
Articles in the same Issue
- Molecular Methods for the Characterization and Identification of the Dry Rot Fungus Serpula lacrymans
- Use of Soft Rot Fungi for Studies on the Microstructure of Kapok (Ceiba pentandra (L.) Gaertn.) Fibre Cell Walls
- Ultrastructural Changes in the Compound Middle Lamella of Pinus thunbergii During Lignification and Lignin Removal
- Comparison of the Antifungal Activity of Cadinane Skeletal Sesquiterpenoids from Taiwania (Taiwania cryptomerioides Hayata) Heartwood
- Characterization of the Polyphenolics Related to the Colour of Western Red Cedar (Thuja plicata Donn) Heartwood
- Influence of Botanical Species and Geographical Origin on the Content of Low Molecular Weight Phenolic Compounds of Woods Used in Portuguese Cooperage
- Effect of Oxygen Pressure on the Oxidation of Syringyl Alcohol Initiated by Manganese(III) Acetate
- Potential Catalysts for the Acetylation of Wood
- Quantification of Muconic Acid-Type Structures in High Molecular Weight Material from Bleach Plant Effluents
- The Effects of the Order of Chemical Addition on the Peroxide Bleaching of an Oxygen-Delignified Softwood Kraft Pulp
- Effects of Thermo-Hydro-Mechanical Treatment on the Structure and Properties of Wood
- Improvement of Heartwood Color of Black-Colored Sugi (Cryptomeria japonica D. Don) by UV Irradiation after Smoke Heating
- Analysis of the Wood Sorption Isotherm Using the Theory of Micropore Volume Filling
- Acoustic Emission Generated upon Mechano-Sorptive Creep of Wood Bent Across to the Grain under Asymmetrical Moistening
- Experimental Data Correction of the Dynamic Elastic Moduli, Velocity and Density of Solid Wood as a Function of Moisture Content above the Fiber Saturation Point
- Contractive Force and Transformation of Microfibril with Aqueous Sodium Hydroxide Solution for Wood
- Dielectric Relaxation Based on Adsorbed Water in Wood Cell Wall under Non-Equilibrium State. 1
- Stabilizing Effect of Chromated Salt Treatment on the Green Color of Ma Bamboo (Dendrocalamus latiflorus)
- Microwave-Enhanced Transport of Chemicals into Green Wood under Low-Headspace Conditions
- Personalia: Günther Stegmann in memoriam
