Scheme 3.

Substrate scope for synthesis of amides 4. Reaction Conditions: All reactions were performed with 1 (0.5 mmol), 2 (1.1 mmol), I₂ (0.75 eq.), and CuCl₂ (40 mol%) in 1,2-DCB (2 mL) and diglyme (1 mL) at 140 °C oil bath under O₂; isolated yields.