α,β-Unsaturated Aldehydes And Ketones:
Definition
α, β-Unsaturated aldehydes and ketones are aldehydes and ketones that are conjugated with a double bond. The α-position is described like the carbon atom next to the carbonyl group, whereas the β-position is the carbon atom two bonds removed.
Figure: (a) α, β-Unsaturated aldehyde; (b) α, β-Unsaturated ketone.