pyrylium
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Pyrylium is a cation (positive ion) with formula , consisting of a six-membered ring of five carbon atoms, each with one hydrogen atom, and one positively charged oxygen atom. The bonds in the ring are conjugated as in benzene, giving it an aromatic character. In particular, because of the positive charge, the oxygen atom is trivalent. Pyrilium is a mono-cyclic and heterocyclic compound, one of the oxonium ions.
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Encyclopedic overview
9 sectionsContents
- Synthesis
- Chemical properties
- Derivatives
- Pyrones
- Polycyclic oxonium arenes
- Chromenylium ion
- Naphthoxanthenium cation
- See also
- References
Pyrylium is a cation (positive ion) with formula , consisting of a six-membered ring of five carbon atoms, each with one hydrogen atom, and one positively charged oxygen atom. The bonds in the ring are conjugated as in benzene, giving it an aromatic character. In particular, because of the positive charge, the oxygen atom is trivalent. Pyrilium is a mono-cyclic and heterocyclic compound, one of the oxonium ions.
==Synthesis== Pyrylium salts are easily produced from simple starting materials through a condensation reaction.
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