Methylcyclohexanones are a group of three isomers: 2-methylcyclohexanone, 3-methylcyclohexanone, and 4-methylcyclohexanone. They can be viewed as derivative of cyclohexanone. They can be prepared by oxidation of methylcyclohexane as well as partial hydrogenation of the corresponding cresols. All are colorless liquids. The 2- and 3-isomers are chiral.
+ Methylcyclohexanones Isomer Structure CAS RN m.p. (°C) b.p. (°C) density (g/cm3) 2-Methylcyclohexanone 583-60-8 −13.9 165.1 0.925 3-Methylcyclohexanone 591-24-2 −73.5 170.0 0.920 4-Methylcyclohexanone 589-92-4 −40.6 171.3 0.916
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