Fig. 6: Substrate GPC characterization.
From: Catalytic carbon–carbon bond cleavage in lignin via manganese–zirconium-mediated autoxidation
a GPC traces of the pine RCF substrate (black), methylated pine RCF (dark blue), methylated pine oligomers (blue), and methylated pine distillate (light blue). b Comparison of the GPC traces of the pine distillate (light blue) with those of 4-propylveratrole (black), 1, propanol veratrole (blue), 1,2-bis(3,4-dimethoxyphenyl)ethane (green), 3, and 2,2’,3,3’-tetramethoxy-5,5’-dipropyl−1,1’-biphenyl (orange), 6, indicating dimers present in the distillate. c GPC traces of the poplar RCF substrate (black), methylated poplar RCF (dark green), methylated poplar oligomers (green), methylated poplar distillate (light green), 1-(3′,4′,5′-trimethoxyphenyl)propane (brown), 2, and 1-(3′,4′,5′-trimethoxyphenyl)propan-3-ol (red). d Molecular structures of models compounds in panels b, c.
