Preparation of 2H-1,4-Benzoxazin-2-one Derivatives under Heterogeneous Conditions via Domino Process

Carbonate on polymer is a valuable solid supported reagent (SSR) to promote, under eco-friendly conditions, the preparation of 2H-1,4-benzoxazin-2-one derivatives starting from beta-nitroacrylates and aminophenols via a domino process.