Access to Functionalized 2-Phenyl-4-(Indol-3-yl)-4H-Chromenes via Coupling of 2-Hydroxychalcones and Indole in PEG-400/H2O under Catalyst-free Conditions. J. Sci. Res. [Internet]. 2024 Sep. 2 [cited 2026 Jul. 16];16(3):857-72. Available from: https://www.banglajol.info/index.php/JSR/article/view/71425