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Names | |||
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Preferred IUPAC name N-Hydroxycyclohexanimine | |||
Identifiers | |||
3D model (JSmol) | |||
ChEMBL | |||
ChemSpider | |||
ECHA InfoCard | 100.002.613 | ||
EC Number |
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PubChem CID | |||
UNII | |||
UN number | 2811 | ||
CompTox Dashboard (EPA) | |||
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Properties | |||
C6H11NO | |||
Molar mass | 113.16 g/mol | ||
Appearance | white solid | ||
Melting point | 88 to 91 °C (190 to 196 °F; 361 to 364 K) | ||
Boiling point | 204 to 206 °C (399 to 403 °F; 477 to 479 K) | ||
16 g/kg (in water) | |||
−71.52·10−6 cm3/mol | |||
Hazards | |||
GHS labelling: | |||
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Warning | |||
H228, H302, H319, H373, H412 | |||
P210, P240, P241, P260, P264, P270, P273, P280, P301+P312, P305+P351+P338, P314, P330, P337+P313, P370+P378, P501 | |||
Flash point | 110 °C (230 °F; 383 K) | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). |
Cyclohexanone oxime is an organic compound containing the functional group oxime. This colorless solid is an important intermediate in the production of nylon 6, a widely used polymer.
Cyclohexanone oxime can be prepared from the condensation reaction between cyclohexanone and hydroxylamine: [1]
Alternatively, another industrial route involves the reaction of cyclohexane with nitrosyl chloride, which is a free-radical reaction. This method is advantageous as cyclohexane is much cheaper than cyclohexanone.
The most famous and commercially important reaction of cyclohexanone oxime is Beckmann rearrangement yielding ε-caprolactam, which is used to produce Nylon 6:
This reaction is catalyzed by sulfuric acid, [1] but industrial scale reactions use solid acids. [2]
Typical of oximes, the compound can be reduced by sodium amalgam to produce cyclohexylamine. [3] It can also be hydrolyzed with acetic acid to give back cyclohexanone.