. 2021 Sep 1;11(47):29130–29155. doi: 10.1039/d1ra04887b

Comparison of activity of the PeSA catalyst with some other reported catalysts.

Entry	Catalyst	Condition	Yield (%)	Time (min)	References
1	PeSA	110 °C/Solvent-free	97	15	80
2	ASA	110 °C/Solvent-free	85	30	81
3	CMK-5-SO₃H	110 °C/Solvent-free	95	20	82