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| Mesityl oxide | |
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| IUPAC name | 4-methylpent-3-en-2-one |
| Other names | Mesityl oxide Isobutenyl methyl ketone Methyl isobutenyl ketone Isopropylidene acetone |
| Identifiers | |
| CAS number | 141-79-7 |
| RTECS number | SB4200000 |
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| Properties | |
| Molecular formula | C6H10O |
| Molar mass | 98.14 g/mol |
| Density | 0.858 g/cm³ |
| Melting point |
-53 °C |
| Boiling point |
129 °C |
| Solubility in water | good |
| Solubility in other solvents | organic solvents |
| Refractive index (nD) | 1.442 |
| Hazards | |
| Main hazards | flammable |
| R-phrases | 10-20/21/22 |
| S-phrases | 25 |
| Flash point | 87 °F |
| Related compounds | |
| Related compounds | diacetone alcohol acetone, benzylideneacetone |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox references |
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Mesityl oxide is a α,β-Unsaturated ketone with the formula CH3C(O)CH=C(CH3)2. This compound is a colorless, volatile liquid with a strong peppermint odor.
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Synthesis
It is prepared by the condensation of acetone to give diacetone alcohol, which readily dehydrates to give this compound. This type of reaction is called aldol reaction.
A further 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
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This article's citation style may be unclear. The references used may be clearer with a different or consistent style of citation, footnoting, or external linking. (September 2007) |
- Merck Index, 11th Edition, 5811.
- Organic Syntheses, Coll. Vol. 1, p. 345 (1941)
External links
Wikipedia content modification information:
- This page was last modified on 18 August 2008, at 14:58.
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