3,9-Dimethyl-2,3-dihydrophenanthro[1,2-b]furan-4,5-dione

Abstract

The title compound, C18H14O3, consists of a four-ring system which contains three six-membered rings forming a phenanthrenedione system and a five-membered 1,2-dihydromethylfuran ring. A three-dimensional supramolecular framework is formed via non-classical intermolecular C—H...O hydrogen bonds.