HALDORAI, Yuvaraj; G. KALKHAMBKAR, Rajesh; SHIM, Jae-Jin. Brønsted-Acidic Imidazolium Ionic Liquid [bmim(SO3H)][OTf]: A Mild Catalyst for Highly Efficient Synthesis of Coumarins. Asian Journal of Chemistry, [S. l.], v. 25, n. 16, p. 9379–9383, 2013. DOI: 10.14233/ajchem.2013.15772. Disponível em: https://asianpubs.org/index.php/ajchem/article/view/25_17_123. Acesso em: 26 jun. 2024.