Bromine in methanol and dilute sulfuric acid are used to convert the alcohol of this compound to a dihydropyran in the Achmatowicz reaction. An "interrupted" modification of one reaction that produces this compound involves quinine in the presence of
Bromine in methanol and dilute sulfuric acid are used to convert the alcohol of this compound to a dihydropyran in the Achmatowicz reaction. An "interrupted" modification of one reaction that produces this compound involves quinine in the presence of a proton sponge, and that reaction is catalyzed by amines and involves alpha-halogen ketones and beta-dicarbonyl compounds and is the Feist-Benary synthesis. 1,4-diketones are reacted with phosphorus pentoxide to produce these in Paal-Knorr synthesis, and these compounds are hydrogenated with a palladium catalyst to produce the "tetrahydro" variety of ether. Analogous to thiophene and pyrrhole, for 10 points, name this aromatic compound with a five-element ring containing one oxygen atom.
Bromine in methanol and dilute sulfuric acid are used to convert the alcohol of this compound to a dihydropyran in the Achmatowicz reaction.
{furan}