In situ metal-ion complexation and H2O2 oxidation for a pyridine-2,6-dione based disperse yellow dye

We have studied herein in situ metal-ion complexation and H2O2 oxidation for a pyridine-2,6-dione based disperse yellow dye, where four kinds of compounds can be isolated successfully from the one-pot reaction including complexation, oxidation, oxidation and complexation, and ring-degradation products.