Table 2. Effect of Radical Scavengers on the Oxidation of Isobutane over La_0.8Sr_0.2FeO_3−δ^a.

entry	radical scavenger	total yield (%)	selectivity (%)
			t-BuOH	TBHP	acetone
1	none	31	71	7	19
2	BHT	<1
3	TEMPO	<1
4	p-benzoquinone	<1
5	2-propanol	3	<1	<1	>99

^aReaction conditions: La_0.8Sr_0.2FeO_3−δ (0.1 g), isobutane (0.2 MPa, 3.2 mmol), radical scavenger (1 mmol), O₂ (0.25 MPa), and PhCF₃ (2 mL), 110 °C, 24 h.