Journal
TETRAHEDRON LETTERS
Volume 56, Issue 1, Pages 155-158Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2014.11.047
Keywords
Chromones; Imidazo[1,2-a]pyridines; Hybrid compounds; MW assisted synthesis; Groebke-Blackburn-Bienayme
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Funding
- CONACYT-MEXICO [CB-2011-166747-Q]
- Post-doctoral SEP-PROMEP [promep-103.5/13/5669]
- CONACYT [481808/285150, 378051/252139]
- Laboratorio Nacional de Caracterizacion de Propiedades Fisicoquimicas y Estructura Molecular (UG-CONACYT-MEXICO) [123732]
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A series of nine novel imidazo[1,2-a]pyridin-chromones and nine novel imidazo[1,2-a]pyridin-6-fluorochromones were synthesized in good to excellent yields by a MW assisted Groebke-Blackburn-Bienayme reaction (GBB) under mild thermal and acidic conditions. Additionally, optimized geometries for the two non-prepared 5-bromoimidazo[1,2-a]pyridin-chromones were calculated at the TPSSh/6-311G(d) level of theory in order to understand the role of the steric strain in the GBB process. (C) 2014 Elsevier Ltd. All rights reserved.
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