1.
J Org Chem
; 86(2): 1456-1461, 2021 Jan 15.
Artículo
en Inglés
| MEDLINE
| ID: mdl-33393761
RESUMEN
We demonstrate the preparation of anthanthrene derivatives with fused five-membered rings. These new derivatives are prepared by a palladium catalyzed cyclopentannulation reaction from precursors derived from the low-cost dye Vat Orange 3 (4,10-dibromoanthanthrone). The new cyclopentaanthanthrene compounds possess reduced optical and electrochemical gaps (â¼0.9 eV) compared to anthanthrene derivatives and are electron acceptors with lowest unoccupied molecular orbital energies from â¼ -3.4 to -3.9 eV.