Information AboutFuran |
| CATEGORIES ABOUT FURAN | |
| furans | |
| simple aromatic rings | |
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Furan, also known as '''furane''' and '''furfuran''', is an Aromatic Heterocyclic Organic Compound , produced when wood, especially pine-wood, is distilled. Furan is a clear, colorless, very Volatile and highly Flammable liquid with a Boiling Point close to room temperature. It is Toxic and may be Carcinogenic . Catalytic hydrogenation (see Redox ) of furan with a Palladium Catalyst gives Tetrahydrofuran . Furan is aromatic because one of the Lone Pair s of Electron s on the oxygen atom is delocalized into the ring, creating a 4n+2 aromatic system (see Hückel's Rule ) similar to Benzene . This aromatic system forms two rings of electrons above and below the flat structure with no discrete double bonds. The other lone pair of electrons of the oxygen atom extends in the plane of the flat ring system. Due to its aromaticity, furan's behavior is quite dissimilar to that of the more typical heterocyclic Ether s such as Tetrahydrofuran . It is considerably more reactive than Benzene in Electrophilic Substitution reactions. A classic furan Organic Synthesis is the Feist-Benary Synthesis . One of the most simple synthesis methods for the thiophenes is the reaction of 1,4-di Ketone s with P2O5. It is interesting that the thiophene formation reaction of 1,4-di Ketone s with Lawesson's Reagent also forms furans as side products. SEE ALSO
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