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(organic chemistry)
C6H10O An oily liquid with an odor suggesting peppermint and acetone; soluble in alcohol, ether, and other organic solvents; used as an industrial solvent, in the production of adipic acid, and in the preparation of cyclohexanone resins.



(also pimelic ketone), an alicyclic ketone. A colorless liquid with a sharp odor, similar to that of acetone, cyclohexane has the structural formula

It has a melting point of –40.2°C, a boiling point of 155.6°C, and a density of 0.946 g/cm3 at 20°C. It is approximately 7 percent soluble in water at 20°C and is miscible with most organic solvents. Cyclohexanone dissolves cellulose nitrates, cellulose acetates, fats, waxes, polyvinyl chloride, and many natural resins. It has all the chemical properties that are characteristic of ketones.

Cyclohexanone is industrially obtained by the catalytic oxidation of cyclohexane, usually in a mixture with cyclohexanol, or by the catalytic oxidation of cyclohexanol. It is used mainly as a solvent and also as an intermediate in the production of caprolactam and adipic acid, which are starting materials for the manufacture of polyamides.

References in periodicals archive ?
Syntheses of 2-(2-pyridyl) cyclohexanone and related cyclohexanones.
Cyclopentanone, cyclohexanone, cyclopheptanone, cyclooctanone, cyclodecanone, and cyclododecanone were utilized.
6 g (46 percent yield) of 2-(2-pyridyl) cyclohexanone (II).
Using Fischer-Hirschfelder-Taylor space filling models (Fischer) of the 2-(2-pyridyl) cyclopentanone and the 2-(2-pyridyl) cyclohexanone, the cycloalkane ring is rigid in both the enol and the keto form but steric interactions appear greater in the keto form of the cyclopentane ring and in the enol form of the cyclohexane ring thus favoring the enol form in the five membered ring and the keto form for the six membered ring.
Cyclohexanone and Methylcyclohexanones: European Union Market Outlook 2010 and Forecast till 2015