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SM ISO690:2012 ZBANCIOC, Gheorghita N., MOLDOVEANU, Costel, MAFTEI, Dan, AMĂRIUCĂI-MANTU, Dorina, ANTOCI, Vasilichia, MANGALAGIU, Ionel I.. XRD structure elucidation of new fluorescent pyrroloimidazole derivatives. In: The International Conference dedicated to the 55th anniversary from the foundation of the Institute of Chemistry of the Academy of Sciences of Moldova, 28-30 mai 2014, Chișinău. Chișinău, Republica Moldova: Institutul de Chimie al AȘM, 2014, p. 221. |
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The International Conference dedicated to the 55th anniversary from the foundation of the Institute of Chemistry of the Academy of Sciences of Moldova 2014 | ||||||
Conferința "The International Conference dedicated to the 55th anniversary from the foundation of the Institute of Chemistry of the Academy of Sciences of Moldova" Chișinău, Moldova, 28-30 mai 2014 | ||||||
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Synthesis of indolizines and azaindolizines has received increasing interest during the last The structure of the new compounds was proven by elemental (C, H, N) and spectral
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<?xml version='1.0' encoding='utf-8'?> <oai_dc:dc xmlns:dc='http://purl.org/dc/elements/1.1/' xmlns:oai_dc='http://www.openarchives.org/OAI/2.0/oai_dc/' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xsi:schemaLocation='http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd'> <dc:creator>Zbancioc, G.</dc:creator> <dc:creator>Moldoveanu, C.</dc:creator> <dc:creator>Maftei, D.</dc:creator> <dc:creator>Amăriucăi-Mantu, D.</dc:creator> <dc:creator>Antoci, V.</dc:creator> <dc:creator>Mangalagiu, I.</dc:creator> <dc:date>2014</dc:date> <dc:description xml:lang='en'><p>Synthesis of indolizines and azaindolizines has received increasing interest during the last<br />years driven by a wide range of potential applications, from electroluminescent materials to<br />macrocyclic fluorescent sensors [1,2]. In particular, the interest in pyrroloimidazole derivatives<br />(PID) arises from their highly efficient blue fluorescence emission [3], which makes them<br />attractive materials in optoelectronics for blue organic light-emitting diodes.<br />The strategies adopted for construction of fluorescent PID I, are depicted in Scheme 1. To<br />obtain ylides derived from benzo[d]imidazol 1, we used the Kröhnke [4] salt method. Thus,<br />benzo[d]imidazolium salts 3 were prepared by treating 3-(1H-benzo[d]imidazol-1-<br />yl)propanenitrile 1 with methylbromoacetate 2a or ethylbromoacetate 2b. Then, for the obtaining<br />of highly fluorescent pyrroloimidazole derivatives 5 and 6, it was used a (3+2) dipolar<br />cycloaddition of benzo[d]imidazolium ylides 4, generated in situ from the corresponding<br />cycloimmonium salts, to methyl propiolate or DMAD.</p><p>The structure of the new compounds was proven by elemental (C, H, N) and spectral<br />analysis (IR, 1H NMR, 13C NMR, 2D-COSY, HMQC, HMBC). All the elemental and spectral<br />data are in accordance with the proposed structure.<br />Acknowledgements: To CNCS - UEFISCDI, grant PN-II-TE/ 0010 -79/05.10.2011 (director<br />assisting profesor Costel Moldoveanu) for financial support.<br />References:<br />1. B. Valeur, Molecular Fluorescence, Ed. Wiley-VCH, Weinheim, 2002.<br />2. M.A. Thompson and S.R. Forrest, Nature 2000, 403, 750.<br />3. T. Mitsumori, M. Bendikov, J. Sedo and F. Wudl, Chem. Mater. 2003, 15, 3759.<br />4. E. Krohnke, Ber. Dtsch. Chem. Ges. 1935, 68, 1177.</p><p> </p></dc:description> <dc:source>The International Conference dedicated to the 55th anniversary from the foundation of the Institute of Chemistry of the Academy of Sciences of Moldova () 221-221</dc:source> <dc:title>XRD structure elucidation of new fluorescent pyrroloimidazole derivatives</dc:title> <dc:type>info:eu-repo/semantics/article</dc:type> </oai_dc:dc>