![Chemistry and Chemical Biology ETDs](../../assets/md5images/7edf8ef1546e1182468f33ba91455c13.png)
Chemistry and Chemical Biology ETDs
Publication Date
2-8-2011
Abstract
The lignin peroxidase promoted α-carbon β-carbon bond cleavage of two diastereomeric pairs of dimeric lignin model compounds were investigated to determine which structural units are more readily cleaved. These model compounds, β-1 (1,2-diaryl-1,3-propanediol) and β-O-4 (1-diaryl-2-aryloxy-1,3-propanediol), represent the most common structural units present in the plant cell wall polymer lignin. The lignin peroxidase catalyzed reaction mechanism was shown to parallel two mechanistically well understood systems, the cerric (IV) ammonium nitrate promoted chemical reacton, and the dicyannoanthracene promoted photochemical reaction, both of which proceed by a SET mechanism. Product profiles and kinetic rate constants were determined and compared for all four model compounds by HPLC and Stopped Flow kinetic techniques.
Language
English
Keywords
Lignocellulosic, Biomass
Document Type
Thesis
Degree Name
Chemistry and Chemical Biology
Level of Degree
Masters
Department Name
Department of Chemistry and Chemical Biology
First Committee Member (Chair)
Mariano, Patrick
Second Committee Member
Wang, Wei
Recommended Citation
Pimentel, Adam. "The Nature and Kinetic Analysis of Carbon-Carbon Bond Fragmentation Reactions of Cation Radicals Derived from SET-Oxidation of Lignin Model Compounds." (2011). https://digitalrepository.unm.edu/chem_etds/47