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The naming of these compounds is a bit odd. Pyran refers to the six-membered oxygen-containing heterocyclic ring system with two double bonds. It is not aromatic though compounds like pyrones are. The compound with only one double bond is therefore dihydropyran, and the saturated ring system istetrahydropyran. [Pg.543]

See other pages where Oxygen containing heterocycles dihydropyran is mentioned: [Pg.37] [Pg.37] [Pg.213] [Pg.377] [Pg.377]