Benzoic acid resin (): a heterogeneous redox organocatalyst for continuous flow synthesis of benzoquinones from β-O-4 lignin models

A polymer-bound organocatalyst for Baeyer-Villiger reaction and phenol oxidation under continuous flow conditions is described for the first time. BAR has revealed two catalytic activities that enabled the generation of a novel approach for the synthesis of benzoquinones from β-O-4 lignin models in a one-pot protocol. High catalytic activities (yields up to 98%), selectivities, recyclability and productivity were achieved. Benzoic acid resin ( BAR ), a redox organocatalyst for both Baeyer-Villiger and phenol oxidation, is described. BAR enabled the continuous-flow synthesis of benzoquinones from β-O-4 lignin models in a one-pot protocol via auto-tandem catalysis.