New method for the synthesis of 4-aryl-3,4-dihydro-2H-benzo[g]chromene-2,5,10-triones
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Titre | New method for the synthesis of 4-aryl-3,4-dihydro-2H-benzo[g]chromene-2,5,10-triones |
Type de publication | Journal Article |
Year of Publication | 2019 |
Auteurs | Choura E, Ncir M, Maalej E, Marco-Contelles J, Ismaili L, Chabchoub F |
Journal | SYNTHETIC COMMUNICATIONS |
Volume | 49 |
Pagination | 2834-2839 |
Date Published | NOV 2 |
Type of Article | Article |
ISSN | 0039-7911 |
Mots-clés | 10-dihydro-4H-benzo[g]chromene-3-carbonitriles, 10-dioxo-5, 10-triones, 2-Amino-4-aryl-5, 4-aryl-3, 4-dihydro-2H-benzo[g]-chromene-2, 5, 88% formic acid, antioxidant activity |
Résumé | We report herein a new method for the synthesis of 4-aryl-3,4-dihydro-2H-benzo[g]chromene-2,5,10-triones 4 that proceeds in good yields (74-86%) and mild reaction conditions between readily available 2-amino-4-aryl-5,10-dioxo-5,10-dihydro-4H-benzo[g]chromene-3-carbonitr iles 1, and formic acid (88%), at reflux for 6 h. In addition, we have also studied the antioxidant activities using DPPH and total TAC methods. [GRAPHICS] . |
DOI | 10.1080/00397911.2019.1646286 |