Moisture-resistant radical anions of quinoxalin-2(1 H )-ones in aerial dioxygen activation.

This study demonstrates the successful formation of a radical anion intermediate in a moist atmosphere, facilitating chemical reactions by activating aerial dioxygen through a single electron transfer (SET) mechanism. Derived from deprotonating quinoxaline-2(1 H )-one with KO t Bu, it shows potential in oxygenation chemistry. Validation comes from radical scavenging and EPR experiments.