Table 3:

Yields of XEC reactions between 1°, 2°, and benzylic Katritzky salts and alkyl iodides with different homogeneous reductants. Reaction conditions: 2-iodoanisole (0.03125 mmol), Katritzky salt (0.0375 mmol), reductant (0.0375 mmol), (dtbbpy)Ni^IIBr₂ (10 mol%), in DMAc (0.25 mL) at 80 °C for 24 h. The yields were determined by integration of ¹H NMR spectra against a hexamethylbenzene external standard.

Reductant	E° (V vs Fc)	Yield (%) with	Yield (%) with	Yield (%) with	Yield (%) with
		1	2	3	4
TPyE	−1.32	77	34	57	25
TDAE	−1.11	10	77	99	29
TAzE	−1.09	<1	66	93	29
TPiE	−1.06	<1	83	99	30
TME	−0.85	<1	43	75 (93a)	90

^a5 mol% (dtbbpy)Ni^IIBr₂ used.