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Efficient reductive depolymerization of hardwood and softwood lignins with Brookhart's iridium(iii) catalyst and hydrosilanes
- Monsigny, Louis, Feghali, Elias, Berthet, Jean-Claude, Cantat, Thibault
- Green chemistry 2018 v.20 no.9 pp. 1981-1986
- catalysts, depolymerization, green chemistry, hardwood, hardwood lignin, iridium, models, reducing agents, softwood
- Efficient catalytic reduction of lignin model molecules and reductive depolymerization of softwood and hardwood lignins is presented with the iridium based Brookhart's catalyst and hydrosilanes R₃SiH as reductant. This catalyst displays increased stability and selectivity in comparison to the B(C₆F₅)₃/hydrosilane system and it enables a convergent reductive depolymerization of wood lignins to isolable mono-aromatics.