A revised structure for dehydrotectol and tecomaquinone I
Abstract
Tecomaquinone I and dehydrotectol are identical but the published structures are wrong. The revised structure is 3,10-dihydro-3,3-dimethyl-10-(2-methylprop-1-enyl)naphtho[2,3-d]pyrano[3′,2′:3,4]-naphthol[1,2-b] pyran-11,16-quinone (5). Previous work is reinterpreted on this basis.