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GC × GC–MS chromatogram of the volatile components after reaction {300 mg poplar dioxasolv lignin, 0.060 mmol [Rh(cod)Cl]2, 0.240 mmol dppp, 0.120 mmol (ScOTf)3; 175 °C, 2 h, 22 mL 1,4‐dioxane/water}. Lignin‐derived products in white; non‐lignin derived compounds in yellow.
