Visible-light-induced synthesis of 2,4-disubstituted quinolines from o -vinylaryl isocyanides and oxime esters.

A visible-light-induced radical cyclization reaction of o -vinylaryl isocyanides and oxime esters to access various 2,4-disubstituted quinolines was disclosed. Oxime esters were employed as acyl radical precursors via the carbon-carbon bond cleavage. It provided an effective way for the synthesis of 2-acyl-4-arlysubstituted quinolines under mild conditions and exhibited good functional group tolerance and substrate applicability.