Ultrasound-Accelerated, Concise, and Highly Efficient Synthesis of 2-Oxazoline Derivatives Using Heterogenous Calcium Ferrite Nanoparticles and Their DFT Studies

Table 1

Optimization of reaction conditions^a.

Entry	CaFe2O4 mol%	Time (min.)	Yield (%)^b
1	—	40	65
2	1	40	68
3	3	40	74
4	5	40	80
5	10	40	89
6	20	40	89

^aReaction conditions: 1d (1.0 mmol), 2 (1.2 mmol), CaFe₂O₄ (1–20) mol%, 50°C, and UI (40 min.) ^bIsolated yield.