The reactions of lignins with hydrogen peroxide at high temperature .1. The oxidation of lignin model compounds

This work deals with hydrogen peroxide bleaching at high temperature (90 degrees) using simple phenolic and non-phenolic model compounds of the benzyl alcohol and benzaldehyde types. In addition to the reactions of the phenolic representatives, proceeding via the well known Dakin and Dakin-like mechanisms, the non-phenolic compounds are shown to react at these higher temperatures tin an S(N)2 mechanism to give ultimately the corresponding benzoic acids and a dimeric ether compound.