A yolk-shell Cu2O@ZIF-8 material was synthesized via the in-situ growth of ZIF-8 on Cu2O modified polyvinyl pyrrolidone (PVP) . It was used to convert CO2 via the reaction with propargylic alcohols and propargylic amines under mild conditions, offering turnover numbers (TONs) of 12.1 and 19.6, respectively (Figure ). It is a noble metal-free catalyst for synthesizing valuable α-alkylidene cyclic carbonates and oxazolidinones using CO2 (Figure .