Azole

Encyclopedia : A : AZ : AZO : Azole

An azole is a class of five-membered nitrogen heterocyclic ring compounds containing at least one other noncarbon atom, nitrogen, sulfur or oxygen. The parent compounds are aromatic and have two double bonds; there are successively reduced analogs (azolines and azolidines) with less.

Meet the azoles:

1 nitrogen
*pyrrole
2 or more nitrogen atoms
*pyrazole
*imidazole, included in histidine
*triazole, included in Ribavirin
*tetrazole
1 nitrogen atom and 1 oxygen atom
* oxazole
* isoxazole
1 nitrogen atom and 1 sulfur atom
* thiazole
* isothiazole

A "dioxole" is a similar compound with two oxygen atoms in a five membered ring. Dioxolane is a derivative of dioxole.

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