Solvent-involved synthesis of pyrrolidin-5-one-2-carboxamides via a sequential Ugi/olefination reaction

An unprecedented multi-component reaction with solvent participation and a novel conversion of sulfur ylides was developed via a Ugi/olefination reaction to construct pyrrolidin-5-one-2-carboxamides. This method features mild conditions, a wide range of substrates and good functional group tolerance. Moreover, the potential utility of this method was further demonstrated by synthetic transformations.