A photochemical strategy for lignin degradation at room temperature

…, BS Matsuura, CRJ Stephenson

Index: Nguyen, John D.; Matsuura, Bryan S.; Stephenson, Corey R. J. Journal of the American Chemical Society, 2014 , vol. 136, # 4 p. 1218 - 1221

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Citation Number: 81

Abstract

The development of a room-temperature lignin degradation strategy consisting of a chemoselective benzylic oxidation with a recyclable oxidant ([4-AcNH-TEMPO] BF4) and a catalytic reductive C–O bond cleavage utilizing the photocatalyst [Ir (ppy) 2 (dtbbpy)] PF6 is described. This system was tested on relevant lignin model substrates containing β-O-4 linkages to generate fragmentation products in good to excellent yields.