频哪醇酮（3,3-二甲基-2-丁酮）是一种在有机化学中常用的酮化合物。这种具有一些薄荷味的化合物最早在1866年被发现。

频哪醇酮可通过频哪醇发生频哪醇重排反应制备，条件为硫酸催化条件下加热反应。

Pinacolone (3,3-dimethyl-2-butanone) is an important ketone in organic chemistry. It is a colorless liquid and has a slight peppermint- or camphor- odor. It is a precursor to triazolylpinacolone in the synthesis of the fungicide triadimefon and in synthesis of the herbicide metribuzin. The molecule is an unsymmetrical ketone. The α-methyl group can participate in condensation reactions. The carbonyl group can undergo the usual reactions (hydrogenation, reductive amination, etc.).