https://doi.org/10.1351/goldbook.E02126
@[email protected] having a carbon–carbon double bond anywhere in the @[email protected] chain. @[email protected] (term not recommended) designates the enoses that are generated by formal @[email protected] of the hemiacetal hydroxy group and an adjacent hydrogen atom. Thus @[email protected] are cyclic @[email protected] Unsaturated hexoses, for example, are called hexenoses, e.g. the hex-1-enopyranose derived from d-glucopyranose):
E02126.png