Journal
TETRAHEDRON
Volume 62, Issue 25, Pages 5868-5874Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2006.04.020
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A series of 2-imidazolines and imidazoles has been synthesized using green synthetic methodologies. The preparation of 2-imidazolines was performed by cyclization of nitriles with ethylenediamine. The use of microwave irradiation in solvent-free conditions enabled 2-imidazolines to be obtained in high yields within short reaction times. Aromatization of imidazoles was performed under microwave irradiation in toluene and using Magtrieve (TM) as the oxidant. The X-ray structures for five of these derivatives are provided. In all cases, the molecules are assembled into chains through N-(HN)-N-... hydrogen bonds. (c) 2006 Elsevier Ltd. All rights reserved.
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