Photocatalytic cascade alkylation/cyclization of N‐arylacrylamides with simple alkanes: a convenient approach to quaternary C3 alkylated oxindoles

A convenient and efficient protocol for the synthesis of 3,3‐dialkylated oxindoles through photocatalytic aerobic radical‐cascade alkylation/cyclization of N‐arylacrylamides with the alkyl radicals generated from simple alkanes is described. This method features a broad substrate scope, inexpensive alkyl radical precursors, simple conditions and good yields.