Molecules (Jul 2022)

Piperidine-Iodine as Efficient Dual Catalyst for the One-Pot, Three-Component Synthesis of Coumarin-3-Carboxamides

  • Manuel Velasco,
  • Nancy Romero-Ceronio,
  • Rosalía Torralba,
  • Oswaldo Hernández Abreu,
  • Miguel A. Vilchis-Reyes,
  • Erika Alarcón-Matus,
  • Erika M. Ramos-Rivera,
  • David M. Aparicio,
  • Jacqueline Jiménez,
  • Eric Aguilar García,
  • David Cruz Cruz,
  • Clarisa Villegas Gómez,
  • Cuauhtémoc Alvarado

DOI
https://doi.org/10.3390/molecules27144659
Journal volume & issue
Vol. 27, no. 14
p. 4659

Abstract

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A simple and efficient one-pot, three-component synthetic method for the preparation of coumarin-3-carboxamides was carried out by the reaction of salicylaldehyde, aliphatic primary/secondary amines, and diethylmalonate. The protocol employs piperidine-iodine as a dual system catalyst and ethanol, a green solvent. The main advantages of this approach are that it is a metal-free and clean reaction, has low catalyst loading, and requires no tedious workup.

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