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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1609690Generated: October 30, 2026

Benzene → Cyclohexanone Oxime

https://huagongshe.com/reaction/1609690

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzeneHCID 241—
ReactantCyclohexanone OximeHCID 7517—
ReactantSodium dodecylbenzene sulphonateHCID 57371080—
SolventSulfuric AcidHCID 1118—
ProductCyclohexanone OximeHCID 7517—
ProductCaprolactamHCID 7768—
ProductCyclohexanoneHCID 7967—

Reaction Conditions

Temperature40 °C

Reaction Steps

Take 200 ml of aqueous solution of 2.16N sulfuric acid in a round bottom flask. Dissolve in this solution 6.8 gm of sodium dodecyl benzene sulfonate (SDBS) and 1.3 gm of benzene by mild stirring. Keep the flask in a water bath maintained at temperature of 40° C. A macroemulsions of benzene in sulfuric acid is formed. To this macroemulsion, add 14.0 gm of cyclohexanone oxime and stir for 21/2 hours. Neutralize the excess acid using Whatman No. 1 filter paper to remove or recycle the the unreacted cyclohexanone oxime. Separate the organic and aqueous layers of the filtrate. Wash the aqueous layer with 3×10 ml benzene and add the benzene washing with the main organic layer. Analyze the benzene layer, the aqueous layer and the unreacted cyclohexanone oxime as obtained above by Gas Chromatography for the amount of cyclohexanone oxime, cyclohexanone and caprolactam.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05401843
Source datasetuspto-grants-1995_03
ORD IDord-4563175d5b14421ba468625b919400cc
Source noteuspto-grants-1995_03