1-(1-Alkylsulfonic)-3-methylimidazolium chloride as a reusable Brønsted acid catalyst for the regioselective azidolysis of epoxides under solvent-free conditions |
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Authors: | Sobhan Rezayati Eshagh Rezaee Nezhad Rahimeh Hajinasiri |
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Affiliation: | a Department of Chemistry, Payame Noor University, P.O. Box 19395-4697, Tehran, Iran;b Chemistry Department, Qaemshahr Branch, Islamic Azad University, P.O. Box 163, Qaemshahr, Iran |
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Abstract: | In this study, 1-(1-alkylsulfonic)-3-methylimidazolium chloride as a new, green, and reusable Brønsted acid catalyst was prepared. In this protocol, we used for the regioselective ring-opening reactions of various epoxiodes with sodium azide to afford the corresponding β-azido alcohols in excellent yields and short reaction time under mild and neutral reaction conditions. This method offers several advantages including excellent regioselectivity, clean reactions, simple work-up procedure, a recyclable catalyst, and use of an eco-friendly catalyst. |
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Keywords: | Ionic liquids (ILs) β-Azido alcohols Ring opening Regioselective Brønsted acid |
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