An efficient one-pot synthesis of functionalized 2-amino-4 H-pyrans by a meglumine- catalyzed three-component reaction has been developed. A broad range of substrates including aromatic and heteroaromatic aldehydes, isatin derivatives, and acenaphthenequinone are condensed with enolizable C–H activated compounds and alkylmalonates to give the desired products in high to excellent yields. This methodology ...