Prenol (3-methyl-2-buten-1-ol) is a small unsaturated alcohol with a sharp, pungent green-fruity odor. It has a fresh herbaceous character reminiscent of unripe fruit, cassis leaf and a faint tropical facet, with a somewhat harsh alcoholic top note that mellows into a subtle sweet-fruity impression.AI · claude-opus-4-7
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Perfume and Flavor Chemicals, page 1155.
Colorless liquid.
Almost insoluble in water, soluble in alcohol and oils.
Fresh, herbaceous-fruity-green, somewhat Lavender-like odor of poor tenacity.
The taste is in high dilution winey, Brandy-like, slightly green-fruity.
It can only be used sparingly in Lavender because of the high cost of this alcohol.
The title alcohol is occasionally used as a trace component in imitation Raspberry flavor.
1) from Isoprene by hydration via Phenyl-acetate. 2) from Dimethyl vinylcarbinol with diluted Sulfuric acid.