visible-light-promoted decarboxylativealkylation of vinylcyclopropanes with alkyl N-(acyloxy)phthalimide esters through the dual C–C bond and single N–O bond cleavage, employing triphenylphosphine and lithium iodide as the photoredox system to synthesize 2-alkylated 3,4-dihydronaphthalenes, has been established. This alkylation/cyclization involves a radical process and undergoes a sequence of N-(acyloxy)phthalimide