Selected Problems: A tandem route to 1,2,3,4-tetrasubstituted naphthalenes. The Hooker oxidation. Benzopyrene synthesis - by accident. Lactone ammonolysis. Acid-catalysed condensation of indole with acetone. Flash vacuum pyrolysis of o-xylylene dimers. A "stable enol" that doesn't exist. Reaction of benzothiazole with DMAD. Ring contractions of a dibenzothiepinone. Rearrangement of 6-hydroxyprotopine to dihydrosanguinarine. An intramolecular Wittig reaction. Easy contruction of a tricyclic indole related to the mitomycins. A flavone from a chromanone. Lewis acid-catalysed condensation of indole with 1,3-cyclohexanedione. Two syntheses of dehydrorotenone.