Base-Free Ozonation of Lignin for Rapid Production of Value-Added Aromatics: Structural Factors and Mechanistic Insights.
Lignin is a renewable aromatic resource, yet its efficient depolymerization requires metal catalysts under high temperature, pressure, and strong base. This study employed ozone as a clean oxidant for lignin depolymerization under mild, catalyst- and base-free conditions. Grass lignin, rich in p-coumaric acid (pCA), fe...