Several 4-(substituted) -Hantzsch esters upon oxidation with bentonite supported metallic nitrates (Ag+, Fe+3, Cu+2, Co+2) under mild conditions, afforded the corresponding pyridines. As result of a comparative study, a synergism between the nitrate and the metallic ions with the TAFF support is suggested.
CITATION STYLE
Miranda, R., Aceves, J. M., Gutierrez, C., Martínez, R., Delgado, F., Cabrera, A., & Salmón, M. (1997). A comparative study of the oxidation of Hantzsch esters induced by taff-metallic nitrates. Heterocyclic Communications. https://doi.org/10.1515/hc.1997.3.2.147
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