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Table 2 Comparison of the present work with literature data

From: Zirconia-based catalyst for the one-pot synthesis of coumarin through Pechmann reaction

Entry Catalyst Time (min.) Temperature (°C) Solvent Yield References
1 Zeolite BEA 240 130 PhNO2 63 [29]
2 PFPAT 180 110 Toluene 90 [30]
3 MFRH 50 80 S.F. 65 [30]
4 Nanoreactors 60 130 S.F. 30 [30]
5 CMK-5-SO3H 20 130 S.F. 95 [7]
6 CMK-5 60 130 S.F. 10 [7]
8 ZrO2-TiO2 180 Room temperature S.F. 97 This work
9 ZrO2-TiO2 110 60 Toluene 95 This work
10 ZrO2-TiO2 150 60 Ethanol 92 This work
  1. PhNO 2 nitrophenol, S.F. solvent-free condition