Journal
ULTRASONICS SONOCHEMISTRY
Volume 20, Issue 5, Pages 1144-1148Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ultsonch.2013.01.019
Keywords
Ionic liquid; Ultrasound; 2,5-Hexanedione; Amine
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Funding
- Tianjin National Natural Science Foundation [11JCZDJC21300]
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Ionic liquid [HMIM]HSO4 was found to be an efficient catalyst for the synthesis of N-substituted pyrroles through the reaction of 2,5-hexanedione with amines under ultrasonic irradiation at room temperature. These reactions proceed with good yields under short reaction time. Furthermore, the green catalytic system can be recycled specific times with no decreases in yields and reaction rates. (C) 2013 Elsevier B.V. All rights reserved.
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