Abstract
Objective: An efficient and catalyst-free procedure for the synthesis of [1,2,4]triazolo/benzimidazolo
quinazolinones has been developed in 2,2,2-trifluoroethanol or deep eutectic solvent(DESs) as a clean reaction
media.
Methods: All of the obtained products are known compounds and identified by IR, 1HNMR,13CNMR, and
melting points.
Result: Various products were obtained in good to excellent yields under reaction conditions.
Conclusion: We have efficiently developed a practical and catalyst-free approach for the synthesis of
[1,2,4]triazolo/benzimidazolo quinazolinones employing TFE as a clean and reusable media.
Keywords:
Fluorinated alcohols, green chemistry, triazole, multicomponent, heterocyclic, anticancer.
Graphical Abstract
[4]
Begue, J-P.; Bonnet-Delpon, D.; Crousse, B. Fluorinated alcohols: A new medium for selective and clean reaction. Synlett, 2004, 2004, 18-29.
[18]
Kato, F.; Kimura, H.; Omatsu, M.; Yamamoto, K.; Miyamoto, R.Miyamoto. European Patent Application,, WO 02/040485. (2002).
[22]
Alagarsamy, V.; Revathi, R.; Meena, S.; Ramaseshu, K.; Rajasekaran, S.; De Clerco, E. AntiHIV, antibacterial and antifungal activities of some 2, 3-disubstituted quinazolin-4 (3H)-ones. Indian J. Pharm. Sci., 2004, 66, 459.
[30]
Mousavi, M.R.; Maghsoodlou, M.T. Nano-SiO2: A green, efficient, and reusable heterogeneous catalyst for the synthesis of quinazolinone derivatives. J. Indian Chem. Soc., 2015, 12, 743-749.
[31]
Seyyedi, N.; Shirini, F.; Nikoo, M.S.; Jashnani, S. A simple and convenient synthesis of [1, 2, 4] triazolo/benzimidazolo quinazolinone and [1, 2, 4] triazolo [1, 5-a] pyrimidine derivatives catalyzed by DABCO-based ionic liquids. J. Indian Chem. Soc., 2017, 14, 1859-1867.