Synthesis of Functionalized chromeno[2,3-b]pyrrole-2,3-Dicarboxylate via Zn(OTf)2-Catalyzed Annulation of 2-Amino-4H-Chromen-4-One and Electron-Deficient Acetylenes . IJC 2025, 64 (8), 823-828. https://doi.org/10.56042/ijc.v64i8.16926.