HUONG NGOC THI DAO; THE THAI NGUYEN; TRAN HUYEN THI NGUYEN; THUY HONG NGOC PHAN; PHUONG HOANG TRAN. Preparation of pyridinium-based ionic liquid and application as a green catalyst for the synthetic route of 4H-1-benzopyran-5(6H)-ones. Vietnam Journal of Science, Technology and Engineering, [S. l.], v. 66, n. 1, p. 34-45, 2024. DOI: 10.31276/VJSTE.66(1).34-45. Disponivel em: https://vietnamscience.vjst.vn/index.php/vjste/article/view/1183. Acesso em: 14 jun. 2024.