Lactone: Difference between revisions

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'''Lactone''' are a family of compounds that ciontain several different arranges of cyclic compounds that contain an oxygen atmon on the core ring as well as a double bonded oxygen atom.
'''Lactones''' (tachnically also furan componds) are a family of compounds that ciontain several different arranges of cyclic compounds that contain an oxygen atmon on the core ring as well as a double bonded oxygen atom.


Lactones are usually named according to the precursor acid molecule (aceto = 2 carbon atoms, propio = 3, butyro = 4, valero = 5, capro = 6, etc.), with a -lactone suffix and a Greek letter prefix that specifies the number of carbon atoms in the heterocycle — that is, the distance between the relevant -OH and the -COOH groups along said backbone. The first carbon atom after the carbon in the -COOH group on the parent compound is labelled α, the second will be labeled β, and so forth. Therefore, the prefixes also indicate the size of the lactone ring: α-lactone = 3-membered ring, β-lactone = 4-membered, γ-lactone = 5-membered, etc.
Lactones are usually named according to the [[precursor]] acid molecule (aceto = 2 carbon atoms, propio = 3, butyro = 4, valero = 5, capro = 6, etc.), with a -lactone suffix and a Greek letter prefix that specifies the number of carbon atoms in the heterocycle — that is, the distance between the relevant -OH and the -COOH groups along said backbone. The first carbon atom after the carbon in the -COOH group on the parent compound is labelled α, the second will be labeled β, and so forth. Therefore, the prefixes also indicate the size of the lactone ring: α-lactone = 3-membered ring, β-lactone = 4-membered, γ-lactone = 5-membered, etc.


Relevnt members of this clsss are only γ-butyrolactione ([[GBL]]) and γ-Hydroxyvaleric acid ([[GHV]], 4-Methyl-GHB).
Relevnt members of this clsss are only γ-butyrolactione ([[GBL]]) and γ-Hydroxyvaleric acid ([[GHV]], 4-Methyl-GHB).


Some other axamples include:
Various lacttones have been synthesized:


<div style=""length: 500px;"
<div style="length: 500em;">
[[File:Lactone-variants.png|500|thumb|righ|Lactone nomenclature: '''α-acetolactone, β-propiolactone, γ-butyrolactone, and δ-valerolactone''']]
    [[File:Lactone-variants.png|thumb|right|500em|Lactone nomenclature: '''α-acetolactone, β-propiolactone,<br>
    γ-butyrolactone ([[GBL]]), '''and''' δ-valerolactone''']]
</div>
</div>
A list of psychactive γ-butyrolactiones can be found here:
*[[GBL]]
*[[GBV]]
*[[GHB]]
*[[GHV]]
===See also===
*[[Harm reduction]]
*[[Responsible use]]
*[[GBL]]