Irones are a group of
methylionone odorants used in
perfumery
Perfume (, ; french: parfum) is a mixture of fragrant essential oils or aroma compounds (fragrances), fixatives and solvents, usually in liquid form, used to give the human body, animals, food, objects, and living-spaces an agreeable scent. The ...
, derived from
iris
Iris most often refers to:
*Iris (anatomy), part of the eye
*Iris (mythology), a Greek goddess
* ''Iris'' (plant), a genus of flowering plants
* Iris (color), an ambiguous color term
Iris or IRIS may also refer to:
Arts and media
Fictional ent ...
oil,
[Council of Europe, August 2007 ] e.g.
orris root
Orris root (''rhizoma iridis'') is the root of '' Iris germanica'' and '' Iris pallida''. It had the common name of Queen Elizabeth Root.
Constituent chemicals
The most valued component of orris root is oil of orris (0.1–0.2%), a yellow-wh ...
. The most commercially important of these are:
* (-)-''cis''-γ-irone, and
* (-)-''cis''-α-irone
Irones form through slow
oxidation
Redox (reduction–oxidation, , ) is a type of chemical reaction in which the oxidation states of substrate change. Oxidation is the loss of electrons or an increase in the oxidation state, while reduction is the gain of electrons or a ...
of
triterpenoids
Triterpenes are a class of chemical compounds composed of three terpene units with the molecular formula C30H48; they may also be thought of as consisting of six isoprene units. Animals, plants and fungi all produce triterpenes, including squale ...
in dried
rhizomes of the
iris
Iris most often refers to:
*Iris (anatomy), part of the eye
*Iris (mythology), a Greek goddess
* ''Iris'' (plant), a genus of flowering plants
* Iris (color), an ambiguous color term
Iris or IRIS may also refer to:
Arts and media
Fictional ent ...
species, ''
Iris pallida
''Iris pallida'', the Dalmatian iris or sweet iris, is a hardy flowering perennial plant of the genus '' Iris'', family Iridaceae. It is native to the Dalmatian coast (Croatia) but widely naturalised elsewhere. It is a member of the subgenus '' ...
''. Irones typically have a sweet floral, iris, woody,
ionone
The ionones are a series of closely related chemical substances that are part of a group of compounds known as rose ketones, which also includes damascones and damascenones. Ionones are aroma compounds found in a variety of essential oils, inc ...
, odor.
See also
*
Ionone
The ionones are a series of closely related chemical substances that are part of a group of compounds known as rose ketones, which also includes damascones and damascenones. Ionones are aroma compounds found in a variety of essential oils, inc ...
References
External links
{{commons category, Irones
Structure - Odor Relationships
Perfume ingredients
Ketones