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Título: | Coupling and Reactions of Lignols and New Lignin Monomers: A Density Functional Theory Study |
Autor: | Elder T.; Río Andrade, José Carlos del CSIC ORCID ; Rencoret, Jorge CSIC ORCID; Kim, Hoon; Beckham, Gregg T.; Crowley, Michael F. | Palabras clave: | Tricin Piceatannol Caffeyl alcohol 5-Hydroxyconiferyl alcohol Lignin |
Fecha de publicación: | 9-jul-2020 | Editor: | American Chemical Society | Citación: | ACS Sustainable Chemistry and Engineering 8(30): 11033–11045 (2020) | Resumen: | This perspective summarizes and compares computational results for the thermodynamics of bond dissociation, coupling, and rearomatization for a number of noncanonical lignin monomer–lignol combinations that have been found to occur experimentally. The noncanonical lignin monomers discussed are tricin, caffeyl alcohol, 5-hydroxyconiferyl alcohol, and piceatannol. Among dimeric combinations, the results for bond dissociation are generally similar, but in cases for which trimers have been reported (tricin-lignol adducts), this value can be quite variable, with stereochemical and structural preferences. Among the adducts examined thus far, the energies associated with quinone methide formation and rearomatization are not dissimilar and would not impede subsequent polymerization. These fundamental studies may help to elucidate how lignin monomers are incorporated into the lignin polymer, provide leads for targeted genetic modification, and be of use in deconstruction for the production of commodity chemicals. | Descripción: | 13 páginas.- 8 figuras.- 3 tablas.- 63 referencias | Versión del editor: | http://dx.doi.org/10.1021/acssuschemeng.0c02880 | URI: | http://hdl.handle.net/10261/218811 | DOI: | 10.1021/acssuschemeng.0c02880 | E-ISSN: | 2168-0485 |
Aparece en las colecciones: | (IRNAS) Artículos |
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Coupling_Reaction_ Lignols_New_Lignin_Monomers_Postprint.pdf | 1,69 MB | Adobe PDF | Visualizar/Abrir |
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