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Wiley-VCH Verlag, ChemInform, 41(37), 2006

DOI: 10.1002/chin.200641111

Elsevier, Tetrahedron, 25(62), p. 5868-5874

DOI: 10.1016/j.tet.2006.04.020

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Microwave-Assisted Synthesis and Crystal Structures of 2-Imidazolines and Imidazoles.

Journal article published in 2006 by Antonio De La Hoz, Ngel Díaz-Ortiz, María del Carmen Mateo, Angel Diaz-Ortiz, Maria del Carmen Mateo, María Del, Mónica Moral ORCID, Andrés Moreno, José Elguero, Concepción Foces-Foces, Matías L. Rodríguez, Ana Sánchez-Migallón ORCID
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Abstract

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 micro-wave irradiation in toluene and using MagtrieveÔ 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–H/N hydrogen bonds.