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Molecules 2017, 22(4), 576;

The Synthesis of 2-Aminobenzoxazoles Using Reusable Ionic Liquid as a Green Catalyst under Mild Conditions

School of Chemistry and Chemical Engineering, Xinjiang University and Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education, Urumqi 830046, China
Physics and Chemistry Detecting Center, Xinjiang University, Urumqi 830046, China
The two authors contributed equally to this paper.
Author to whom correspondence should be addressed.
Academic Editor: Derek J. McPhee
Received: 9 March 2017 / Revised: 27 March 2017 / Accepted: 28 March 2017 / Published: 2 April 2017
(This article belongs to the Section Green Chemistry)
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A facile, green, and efficient method for the direct oxidative amination of benzoxazoles using heterocyclic ionic liquid as catalyst has been developed. The reaction proceeded smoothly at room temperature and gave the desirable 2-aminobenzoxazoles with good to excellent yields (up to 97%). The catalyst 1-butylpyridinium iodide can be easily recycled and reused with similar efficacies for at least four cycles. View Full-Text
Keywords: 2-Aminobenzoxazoles; heterocyclic ionic liquid; recycled 2-Aminobenzoxazoles; heterocyclic ionic liquid; recycled

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Zhou, Y.; Liu, Z.; Yuan, T.; Huang, J.; Liu, C. The Synthesis of 2-Aminobenzoxazoles Using Reusable Ionic Liquid as a Green Catalyst under Mild Conditions. Molecules 2017, 22, 576.

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