Halogenating Reagent-Triggered Annulation of Propargylic Amides With Carbon Dioxide Leading to 5-(Halomethylene)Oxazolidine-2,4-diones.
The conversion of CO2 into value-added chemicals represents a promising strategy for sustainable synthesis. Herein, we report a natural light-promoted cyclization of propargylic amides with CO2 using commonly used halogenating reagents as both the reaction promoter and halogen source to access 5-(halomethylene)oxazolid...