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 [Internet]. 2025 Aug. 25 [cited 2026 May 14];64(8):823-8. Available from: https://or.niscpr.res.in/index.php/IJC/article/view/16926