Synthesis and Characterization of 2, 4-Dihydroxy Substitted Chalcones using PEG-400 as a Recyclable Solvent. Global Journal of Science Frontier Research, [S. l.], v. 10, n. 6, p. -, 2010. Disponível em: https://journalofscience.org/index.php/GJSFR/article/view/184. Acesso em: 6 aug. 2026.