2014 Fiscal Year Final Research Report
Monolignol polymerization in the presence of artificial lignin polymer
| Project/Area Number |
24658156
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Wood science
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| Research Institution | Toyama Prefectural University |
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Principal Investigator |
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Keywords | リグニン / 脱水素重合 / モノリグノール |
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| Outline of Final Research Achievements |
Biomimetic oxidations of sinapyl alcohol and sinapyl acetate were carried out with Ag2O to better understand the high frequency ofβ-O-4 structures in highly acylated natural lignins. The yield of the β-O-4-coupled products from sinapyl acetate was much higher than that from sinapyl alcohol. Computational calculations suggest that the Coulombic repulsion between Cβ and O4 in sinapyl acetate radicals was significantly reduced by the γacetyl group, contributing to the preferential formation of β-O-4 structures from sinapyl acetate. In addition, several β-O-4 type lignin model oligomers, including dimer, trimer, tetramer and pentamer were synthesized to use as templates during monolignol polymerization.
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| Free Research Field |
木質バイオマス
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