Research Article

3-Bromopyridine-Heterogenized Phosphotungstic Acid for Efficient Trimerization of Biomass-Derived 5-Hydroxymethylfurfural with 2-Methylfuran to C21 Fuel Precursor

Figure 8

The 3-BrPyPW catalyst recycling study. Reaction conditions: 3 mmol 2-MF, 1 mmol HMF, 20 mg 3-BrPyPW, 2 mL CH2Cl2, 100°C, and 8 h.