Abstract
AbstractHerein, we developed a photoinduced remote selective C(sp3)−H alkylation of protected amines in the presence of cesium formate. The protected amines were synthesized from commercially available inexpensive 2‐iodo benzoyl chloride. Under mild reaction conditions, the in situ generated aryl radical is converted to α‐amidoalkyl radical via [1,5]‐HAT process, which combines with different Michael acceptors and affords corresponding alkylation products in good yields. Preliminary mechanistic studies revealed that formate anion acts as a source of carbon dioxide radical anion (CO2⋅−) and hydrogen atom donor was directly confirmed by isotope‐labeling studies.
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