May be synthesized by hydration of 4-hexen-2-yne aqueous
H2S04/HgS04; by hydrogenation of 2-hexen-5-yn-4-one over PdCaC03 catalyst in methanol.
Clear colorless to yellow liquid
4-Hexene-3-one has a pungent, acrid, metallic, ethereal odor
Reported found in cooked chicken, beef and pork
ChEBI: 4-hexen-3-one is an enone that is hex-2-ene in which the two methylene hydrogens at position 4 have been replaced by an oxo group. It has a role as a flavouring agent, a plant metabolite and a human metabolite.
By hydration of 4-hexen-2-yne aqueous H2SO4-HgSO4; by hydrogenation of 2-hexen-5-yn-4-one over Pd-CaCO3 catalyst
in methanol.
Aroma characteristics at 1.0%: pungent, horseradish and mustard with an ethyl vinyl ketone ethereal note,
notes reminiscent of vinegar and rum.
Taste characteristics at 10 ppm: pungent mustard, pepper, horseradish, rum, roasted onion and slightly tropical nuances
4-Hexen-3-one is an unsaturated aldehyde that is reported to occur in strawberry fruit, essential oil of Ruta graveolens and Holigarna grahamii leaves. Due to its fruity fragrance, it is also used in the perfume industry.
