One‐Pot Synthesis of C3‐Alkylated Imidazopyridines from α‐Bromocarbonyls under Photoredox Conditions

Abstract A convenient strategy is presented for the synthesis of C3‐alkylated imidazopyridines through one pot condensation and alkylation of α‐bromocarbonyl compounds with 2‐aminopyridines. A series of C3‐alkylated imidazopyridines were obtained in moderate to high yields. This strategy was also elaborated to enable the synthesis of zolpidem in short steps, which otherwise require multistep synthesis.