Ynone

In organic chemistry, an ynone is an organic compound containing a ketone (>C=O) functional group and a C≡C triple bond. The simplest ynone is butynone.

Many ynones are α,β-ynones, where the carbonyl and alkyne groups are one bond apart, allowing them to form a conjugated system. Capillin is a natural example of a doubly conjugated ynone.

Non-conjugated ynones have additional sp3 carbon atoms between the carbonyl and alkyne groups which prevent conjugation.

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