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Delignification Mechanism during High-Boiling Solvent Pulping. Part 2. Homolysis of Guaiacylglycerol-β-Guaiacyl Ether
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| Zeitschriftentitel: | Holzforschung |
|---|---|
| Personen und Körperschaften: | , |
| In: | Holzforschung, 56, 2002, 6, S. 623-631 |
| Format: | E-Article |
| Sprache: | Unbestimmt |
| veröffentlicht: |
Walter de Gruyter GmbH
|
| Schlagwörter: |
| author_facet |
Kishimoto, T. Sano, Y. Kishimoto, T. Sano, Y. |
|---|---|
| author |
Kishimoto, T. Sano, Y. |
| spellingShingle |
Kishimoto, T. Sano, Y. Holzforschung Delignification Mechanism during High-Boiling Solvent Pulping. Part 2. Homolysis of Guaiacylglycerol-β-Guaiacyl Ether Biomaterials |
| author_sort |
kishimoto, t. |
| spelling |
Kishimoto, T. Sano, Y. 0018-3830 Walter de Gruyter GmbH Biomaterials http://dx.doi.org/10.1515/hf.2002.095 <jats:title>Summary</jats:title> <jats:p>A phenolic <jats:italic>β-O</jats:italic>-4 type lignin model compound, guaiacylglycerol-<jats:italic>β</jats:italic>-guaiacyl ether, was treated with 70 wt % aq 1,4-butanediol solution at 180°C to investigate the delignification mechanism under high-boiling solvent (HBS) pulping conditions. Thirteen compounds including four monomers, six dimers, two trimers and a tetramer were isolated from the reaction products. Most of these products were generated by recombination of phenoxy radicals formed by homolysis of the <jats:italic>β</jats:italic>-aryl ether. The results suggest that phenolic <jats:italic>β-O</jats:italic>-4 linkages in lignin are cleaved homolytically (radical mechanism) <jats:italic>via</jats:italic> quinone methide intermediates under HBS pulping conditions.</jats:p> Delignification Mechanism during High-Boiling Solvent Pulping. Part 2. Homolysis of Guaiacylglycerol-β-Guaiacyl Ether Holzforschung |
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10.1515/hf.2002.095 |
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Online |
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Biologie Technik |
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Walter de Gruyter GmbH, 2002 |
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Walter de Gruyter GmbH, 2002 |
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0018-3830 |
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Walter de Gruyter GmbH |
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Holzforschung |
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| title |
Delignification Mechanism during High-Boiling Solvent Pulping. Part 2. Homolysis of Guaiacylglycerol-β-Guaiacyl Ether |
| title_unstemmed |
Delignification Mechanism during High-Boiling Solvent Pulping. Part 2. Homolysis of Guaiacylglycerol-β-Guaiacyl Ether |
| title_full |
Delignification Mechanism during High-Boiling Solvent Pulping. Part 2. Homolysis of Guaiacylglycerol-β-Guaiacyl Ether |
| title_fullStr |
Delignification Mechanism during High-Boiling Solvent Pulping. Part 2. Homolysis of Guaiacylglycerol-β-Guaiacyl Ether |
| title_full_unstemmed |
Delignification Mechanism during High-Boiling Solvent Pulping. Part 2. Homolysis of Guaiacylglycerol-β-Guaiacyl Ether |
| title_short |
Delignification Mechanism during High-Boiling Solvent Pulping. Part 2. Homolysis of Guaiacylglycerol-β-Guaiacyl Ether |
| title_sort |
delignification mechanism during high-boiling solvent pulping. part 2. homolysis of guaiacylglycerol-β-guaiacyl ether |
| topic |
Biomaterials |
| url |
http://dx.doi.org/10.1515/hf.2002.095 |
| publishDate |
2002 |
| physical |
623-631 |
| description |
<jats:title>Summary</jats:title>
<jats:p>A phenolic <jats:italic>β-O</jats:italic>-4 type lignin model compound, guaiacylglycerol-<jats:italic>β</jats:italic>-guaiacyl ether, was treated with
70 wt % aq 1,4-butanediol solution at 180°C to investigate the delignification mechanism under
high-boiling solvent (HBS) pulping conditions. Thirteen compounds including four monomers, six
dimers, two trimers and a tetramer were isolated from the reaction products. Most of these products
were generated by recombination of phenoxy radicals formed by homolysis of the <jats:italic>β</jats:italic>-aryl
ether. The results suggest that phenolic <jats:italic>β-O</jats:italic>-4 linkages in lignin are cleaved homolytically (radical
mechanism) <jats:italic>via</jats:italic> quinone methide intermediates under HBS pulping conditions.</jats:p> |
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| author | Kishimoto, T., Sano, Y. |
| author_facet | Kishimoto, T., Sano, Y., Kishimoto, T., Sano, Y. |
| author_sort | kishimoto, t. |
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| description | <jats:title>Summary</jats:title> <jats:p>A phenolic <jats:italic>β-O</jats:italic>-4 type lignin model compound, guaiacylglycerol-<jats:italic>β</jats:italic>-guaiacyl ether, was treated with 70 wt % aq 1,4-butanediol solution at 180°C to investigate the delignification mechanism under high-boiling solvent (HBS) pulping conditions. Thirteen compounds including four monomers, six dimers, two trimers and a tetramer were isolated from the reaction products. Most of these products were generated by recombination of phenoxy radicals formed by homolysis of the <jats:italic>β</jats:italic>-aryl ether. The results suggest that phenolic <jats:italic>β-O</jats:italic>-4 linkages in lignin are cleaved homolytically (radical mechanism) <jats:italic>via</jats:italic> quinone methide intermediates under HBS pulping conditions.</jats:p> |
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| imprint | Walter de Gruyter GmbH, 2002 |
| imprint_str_mv | Walter de Gruyter GmbH, 2002 |
| institution | DE-Bn3, DE-Brt1, DE-D161, DE-Gla1, DE-Zi4, DE-15, DE-Pl11, DE-Rs1, DE-105, DE-14, DE-Ch1, DE-L229, DE-D275 |
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| spelling | Kishimoto, T. Sano, Y. 0018-3830 Walter de Gruyter GmbH Biomaterials http://dx.doi.org/10.1515/hf.2002.095 <jats:title>Summary</jats:title> <jats:p>A phenolic <jats:italic>β-O</jats:italic>-4 type lignin model compound, guaiacylglycerol-<jats:italic>β</jats:italic>-guaiacyl ether, was treated with 70 wt % aq 1,4-butanediol solution at 180°C to investigate the delignification mechanism under high-boiling solvent (HBS) pulping conditions. Thirteen compounds including four monomers, six dimers, two trimers and a tetramer were isolated from the reaction products. Most of these products were generated by recombination of phenoxy radicals formed by homolysis of the <jats:italic>β</jats:italic>-aryl ether. The results suggest that phenolic <jats:italic>β-O</jats:italic>-4 linkages in lignin are cleaved homolytically (radical mechanism) <jats:italic>via</jats:italic> quinone methide intermediates under HBS pulping conditions.</jats:p> Delignification Mechanism during High-Boiling Solvent Pulping. Part 2. Homolysis of Guaiacylglycerol-β-Guaiacyl Ether Holzforschung |
| spellingShingle | Kishimoto, T., Sano, Y., Holzforschung, Delignification Mechanism during High-Boiling Solvent Pulping. Part 2. Homolysis of Guaiacylglycerol-β-Guaiacyl Ether, Biomaterials |
| title | Delignification Mechanism during High-Boiling Solvent Pulping. Part 2. Homolysis of Guaiacylglycerol-β-Guaiacyl Ether |
| title_full | Delignification Mechanism during High-Boiling Solvent Pulping. Part 2. Homolysis of Guaiacylglycerol-β-Guaiacyl Ether |
| title_fullStr | Delignification Mechanism during High-Boiling Solvent Pulping. Part 2. Homolysis of Guaiacylglycerol-β-Guaiacyl Ether |
| title_full_unstemmed | Delignification Mechanism during High-Boiling Solvent Pulping. Part 2. Homolysis of Guaiacylglycerol-β-Guaiacyl Ether |
| title_short | Delignification Mechanism during High-Boiling Solvent Pulping. Part 2. Homolysis of Guaiacylglycerol-β-Guaiacyl Ether |
| title_sort | delignification mechanism during high-boiling solvent pulping. part 2. homolysis of guaiacylglycerol-β-guaiacyl ether |
| title_unstemmed | Delignification Mechanism during High-Boiling Solvent Pulping. Part 2. Homolysis of Guaiacylglycerol-β-Guaiacyl Ether |
| topic | Biomaterials |
| url | http://dx.doi.org/10.1515/hf.2002.095 |