CHAO, Shujun; LU, Guangzhou; WU, Liqiang. Amberlyst-15 Catalyzed Synthesis of 12-Aryl-12H-benzo[i][1,3]-dioxolo[4,5-b]xanthene- 6,11-diones and 14-Aryl-14H-dibenzo[a,i]xanthene-8,13-diones under Solvent-Free Condition. Asian Journal of Chemistry, [S. l.], v. 23, n. 9, p. 3865–3869, 2011. Disponível em: https://asianpubs.org/index.php/ajchem/article/view/10752. Acesso em: 23 jul. 2024.