1.
Chem Asian J
; 18(3): e202201151, 2023 Feb 01.
Artículo
en Inglés
| MEDLINE
| ID: mdl-36519340
RESUMEN
We report a palladium-catalyzed intramolecular direct heteroarylation of oxazole tethered ß-naphthols to access corresponding tetracyclic 4H-benzo[5,6]chromeno[3,4-d]oxazoles. Various functional groups are well tolerated and furnished the desired products in good to excellent yields under the present reaction conditions. The scale-up reaction and synthetic utility of the resulting molecules have been demonstrated. Moreover, UV/vis absorption and fluorescence emission properties have been evaluated for these polyheterocyclic compounds.