Visible-light-induced dual C-C bond formation via selective C(sp3)-H bond cleavage: efficient access to alkylated oxindoles from activated alkenes and simple ethers under metal-free conditions

A visible-light-induced oxidative difunctionalization of activated alkenes with simple ethers via selective C(sp(3))-H bond cleavage and dual C-C bond formation was developed. The reaction provides mild, efficient and atom economical access to alkylated oxindoles at room temperature under metal-free conditions.