Cyclohexenone is an organic compound which is a versatile intermediate used in the synthesis of a variety of chemical products such as pharmaceuticals and fragrances.

Cyclohexenone is produced industrially by catalytic oxidation of cyclohexene, for example with hydrogen peroxide and vanadium catalysts.

Cyclohexenone is a widely used building block in organic synthesis chemistry, as it offers many different ways to extend molecular frameworks.

With strong bases, the positions 4 and 6 (the two CH2-groups of the carbonyl group and the C-C double bond adjacent) are deprotonated.

Cyclohexenone is an in-vitro catalyst for a relatively mild decarboxylation of alpha amino acids.