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Efficient Synthesis of Chromeno[4,3-B]Pyrano[3,4-E]Pyridine-6,8-Dione Derivatives Via Multicomponent One-Pot Reaction Under Mild Reaction Conditions in Water Publisher



Sayahi MH1 ; Shamkhani F1 ; Mahdavi M2 ; Bahadorikhalili S2
Authors
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Authors Affiliations
  1. 1. Department of Chemistry, Payame Noor University (PNU), P.O. Box 19395-3697, Tehran, Iran
  2. 2. Endocrinology and Metabolism Research Centre, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran

Source: Research on Chemical Intermediates Published:2021


Abstract

10-Methyl-7-aryl-7,12-dihydro-6H,8H-chromeno[4,3-b]pyrano[3,4-e]pyridine-6,8-dione derivatives are significant class of compounds and this is critical to develop methods in water using commercially available and non-toxic catalysts. In this paper, an efficient method is introduced for the synthesis of 10-methyl-7-aryl-7,12-dihydro-6H,8H-chromeno[4,3-b]pyrano[3,4-e]pyridine-6,8-dione derivatives. For the synthesis of the desired products, a multicomponent reaction was designed and performed between 4-hydroxycoumarin, an aldehyde, 6-methyl-2H-pyran-2,4(3H)-dione, and ammonium acetate. The products are obtained under green conditions in water in the presence of a catalytic amount of L-proline (10 mol%). The advantage of this method is no need to any toxic solvent, which is critical from the environmental viewpoint. A possible mechanism was suggested, which confirms the role of L-proline in the reaction as the catalyst. © 2021, The Author(s), under exclusive licence to Springer Nature B.V.