Mesityl oxide
2410698
216106900
2008-05-31T02:45:40Z
Cacycle
83784
+ [[Category:Ketones]]
{{Chembox new
| Name = Mesityl oxide
| ImageFile = Mesityl oxide.png
| ImageName = Mesityl oxide
| ImageFile1 = Mesityl-oxide-3D-balls.png
| ImageFile2 = Mesityl-oxide-3D-vdW.png
| IUPACName = 4-methylpent-3-en-2-one
| OtherNames = Mesityl oxide<br />Isobutenyl methyl ketone<br />Methyl isobutenyl ketone<br />Isopropylidene acetone'''
| Section1 = {{Chembox Identifiers
| CASNo = 141-79-7
| SMILES = CC(C)=CC(C)=O
| InChI = 1/C6H10O/c1-5(2)4-6(3)7/h4H,1-3H3
| RTECS = SB4200000
}}
| Section2 = {{Chembox Properties
| Formula = C<sub>6</sub>H<sub>10</sub>O
| MolarMass = 98.14 g/mol
| Density = 0.858 g/cm³
| Density = 0.858 g/cm³
| Solubility = good
| Solvent = other solvents
| SolubleOther = organic solvents
| MeltingPt = -53 °C
| BoilingPt = 129 °C
| Viscosity =
| RefractIndex = 1.442
}}
| Section3 = {{Chembox Structure
| Dipole =
}}
| Section7 = {{Chembox Hazards
| ExternalMSDS =
| MainHazards = flammable
| FlashPt = 87 °F
| RPhrases = 10-20/21/22
| SPhrases = 25
}}
| Section8 = {{Chembox Related
| OtherCpds = [[diacetone alcohol]]<br />[[acetone]],<br />[[benzylideneacetone]]
}}
}}
'''Mesityl oxide''' is a [[ketone]] with the formula CH<sub>3</sub>C(O)CH=C(CH<sub>3</sub>)<sub>2</sub>. This compound is a colorless, volatile [[liquid]] with a strong [[peppermint]] odor.
==Synthesis==
It is prepared by the [[condensation reaction|condensation]] of [[acetone]] to give [[diacetone alcohol]], which readily dehydrates to give this compound. This type of reaction is called [[aldol reaction]].
[[Image:Acetone mesityl oxide.png|left|none|400px]]<br clear = left/>
A further [[condensation reaction|condensation]] yields [[isophorone]], which is also used as solvent.
==Uses==
Mesityl oxide is used as a solvent and in the production of [[methyl isobutyl ketone]].
==References==
{{Citationstyle|date=September 2007}}
<references/>
*''Merck Index'', 11th Edition, '''5811'''.
*[http://www.orgsyn.org/orgsyn/orgsyn/prepContent.asp?prep=cv1p0345 ''Organic Syntheses'', Coll. Vol. 1, p. 345 (1941)]
==External links==
*[http://www.inchem.org/documents/icsc/icsc/eics0814.htm IPCS INCHEM Description]
[[Category:Ketones]]
[[Category:Alkenes]]
[[Category:Ketone solvents]]
[[de:Mesityloxid]]
[[lv:Mezitiloksīds]]
[[ja:メシチルオキシド]]