A soft, sweet lactonic material with a warm herbaceous-coumarinic character reminiscent of hay, tobacco leaf, and dried grass. Less creamy than gamma-decalactone or gamma-nonalactone, with a drier, more herbal facet and a faint balsamic warmth on dryout.AI · claude-opus-4-7
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Perfume and Flavor Chemicals, page 1369.
Colorless oily liquid.
Miscible with water, propylene glycol and oils.
Warm, sweet, hay- and tobacco-like, herbaceous odor of moderate to poor tenacity.
Very sweet, warm-herbaceous, mildly spicy taste at concentrations lower than 100 ppm.
This lactone has found considerable use in perfume formulations, where its warm-herbal notes are compatible with many floral notes.
The material finds extensive use in flavor compositions, particularly in vanilla, where it introduces support to the very natural pungency of the flavor, a mild sort of peppery effect, sometimes introduced with castoreum and zingerone. It is also used in tobacco flavorings.
1) from vinylacetic acid via bromotutyric acid. 2) by hydrogenation of levulic acid over platinum in ether. 3) by reduction of levulic acid in presence of Raney-nickel catalyst. 4) from pentane-l, 4-diol by dehydrogenation.