Crosslinked sulfonated polyacrylamide (Cross-PAA-SO3H) tethered to nano-Fe3O4 as a superior catalyst for the synthesis of 1,3-thiazoles

Table 5 Comparison of catalytic activity of nano Fe₃O₄@ PAA-SO₃H with other reported catalysts for the synthesis 1,3-thiazoles

Entry	Catalyst (condition)	Time (min)	Yield^a, %	[Refs]
1	Bi(SCH₂COOH)₃ (15 mol%, 70 °C)	180	80	[7]
2	Yb(OTf)₃ (15 mol%)	240	60	[9]
2	2-pyridinecarboxaldehyde oxime (20 mol%, DMF)	400	85	[10]
3	potassium iodide (10 mol%, CH₃OH)	400	80	[11]
4	Nano Fe₃O₄@ PAA-SO₃H (7 mg, EtOH (under reflux condition)	150	94	This work

ISSN: 2661-801X