SciELO - Scientific Electronic Library Online

vol.51 issue4Lewis Acid-Lewis Base Bifunctional Schiff Base-Titanium, Vanadium Catalysis for Enantioselective Cyanosilylation of Benzaldehyde and Oxidation of Sulfides to Chiral SulfoxidesSynthesis of Methyl-2[N-subtituted-N-(2-hydroxyethyl)]amino-2-hydroxyacetates and 2-Hydroxy-4-alkylperhydro-1,4-oxazin-3-ones author indexsubject indexsearch form
Home Pagealphabetic serial listing  

Services on Demand




Related links

  • Have no similar articlesSimilars in SciELO


Journal of the Mexican Chemical Society

Print version ISSN 1870-249X


GOMEZ-PLIEGO, Raquel et al. The Hantzsch Ester Production in a Water-based Biphasic Medium, Using Infrared Irradiation as the Activating Source. J. Mex. Chem. Soc [online]. 2007, vol.51, n.4, pp.181-184. ISSN 1870-249X.

The reaction of a wide number of benzaldehydes (1a-n) with ethyl (2a) or methyl (2b) acetoacetate and aqueous ammonia (3) has been carried out in the absence of an organic solvent, and using for the first time infrared irradiation as the heating mode. Thus, under the green chemistry protocole, the corresponding mono-1,4-dihydropyridines (4a-j) and bis-1,4-dihydropyridines (4k-n) were obtained in good yields and short reaction times.

Keywords : Hantzsch synthesis; benzaldehydes; 1,4-dihydropyridines; infrared irradiation; green chemistry.

        · abstract in Spanish     · text in English     · English ( pdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License