Electricity mediated [3+2]-cycloaddition of N -sulfonylcyclopropanes with olefins via N -centered radical intermediates: access to cyclopentane analogs.

An external oxidant free electrochemical strategy is designed towards the β-scission of strained C-C bonds in cyclopropylamine. Moreover, the mechanistic studies ascertained that the methodology encompasses the N -center radical (NCRs) route and provides access to di- or tri-substituted cyclopentane analogs.