title: A photochemical strategy for lignin degradation at room temperature.
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.
authors.affiliation: Department of Chemistry, University of Michigan , 930 North University Avenue, Ann Arbor, Michigan 48109, United States.
authors.forename: John D
authors.initials: JD
authors.lastname: Nguyen
authors.forename: Bryan S
authors.initials: BS
authors.lastname: Matsuura
authors.forename: Corey R J
authors.initials: CR
authors.lastname: Stephenson
mesh_terms: D002384:Catalysis; D007495:Iridium / Q000737:chemistry; D008031:Lignin / Q000737:chemistry*; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000737:chemistry; D055668:Photochemical Processes; D013696:Temperature
chemical_list: D009942:Organometallic Compounds; D007495:Iridium; D008031:Lignin