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]]