3-Methyl-3-penten-2-one is an unsaturated aliphatic
ketone
In organic chemistry, a ketone is an organic compound with the structure , where R and R' can be a variety of carbon-containing substituents. Ketones contain a carbonyl group (a carbon-oxygen double bond C=O). The simplest ketone is acetone ( ...
. It is an isomer of
mesityl oxide
Mesityl oxide is a Carbonyl#.CE.B1.2C.CE.B2-Unsaturated_carbonyl_compounds, α,β-unsaturated ketone with the formula CH3C(O)CH=C(CH3)2. This compound is a colorless, volatile liquid with a honey-like odor.
Synthesis
It is prepared by the aldol c ...
and
isomesityl oxide. It is a precursor of
3-methyl-2-pentanone
3-Methyl-2-pentanone (methyl ''sec''-butyl ketone) is an aliphatic ketone
In organic chemistry, a ketone is an organic compound with the structure , where R and R' can be a variety of carbon-containing substituents. Ketones contain a carbony ...
(methyl ''sec''-butyl ketone) and is obtained by acid-catalyzed
dehydration
In physiology, dehydration is a lack of total body water that disrupts metabolic processes. It occurs when free water loss exceeds intake, often resulting from excessive sweating, health conditions, or inadequate consumption of water. Mild deh ...
of
4-hydroxy-3-methyl-2-pentanone. It is used as an intermediate in organic chemistry syntheses.
:
References
Enones
{{ketone-stub