Radical vinylation of dioxolanes and N-acylpyrrolidines using vinyl bromides

Radical vinylation was investigated using vinyl bromides with an electron-withdrawing substituent at the beta-position. The vinylation of 1,3-dioxolanes proceeded well to give 2-vinyl-1,3-dioxolanes in good yields. The alpha-vinylation of N-acylpyrrolidines also proceeded well to give 2-vinyl-N-acylpyrrolidines.