Table 4. Control Experiments for the Light-Mediated Decarboxylative Arylation of Alkyl Carboxylic Acids.^a.

entry	catalyst	NMR yield (%)b
1	Ir,Ni@Phen-COF (1.2 mg)	86
2	Phen-COF (1.2 mg)	0
3	No Catalyst	0
4	Ir,Ni@Phen-COF (1.2 mg) (dark)	0
5	Ni@Phen-COF (1.2 mg)	0
6	Ir@Phen-COF (1.2 mg)	0
7	Ni@Phen-COF (0.6 mg)
	Ir@Phen-COF (0.6 mg)	0
8	[Ir(dF(CF3)ppy)2(bpy)]PF6 (0.3 mol %) [NiCl2(phen)] (0.7 mol %)	58

^aThe reaction was carried out using 6 (0.225 mmol), 3e (0.15 mmol), caesium carbonate (0.225 mmol), the corresponding catalyst, and 4 mL of solvent under an Ar atmosphere and blue light irradiation (blue LEDs, 450 nm).

^bThe yield was determined by ¹H NMR using nitromethane as the internal standard.