Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1090728Generated: October 31, 2026

Ethylene Glycol → HCID 86745411, compound

https://huagongshe.com/reaction/1090728

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthylene GlycolHCID 174—
ReactantHCID 15023252HCID 15023252—
Catalystp-Toluenesulfonic acidHCID 6101—
SolventTolueneHCID 1140—
ProductHCID 86745411HCID 8674541171.5%

Reaction Steps

A mixture of 9.25 g (28 mmol) of ethyl γ-ketooctadecanoate and 9.00 g of ethylene glycol (145 mmol) was refluxed for 5 hours in 300 ml of toluene in the presence of a small amount of p-toluenesulfonic acid catalyst while removing water by means of Dean-Stark apparatus. The resulting mixture was washed with an aqueous saturated sodium bicarbonate solution and then with an aqueous saturated solution of sodium chloride. An oily product obtained by removing the solvent under reduced pressure was subjected to column chromatography over silica gel (eluent: ethyl acetate/hexane=1/10) to give 7.42 g (71% yield) of ethyl γ-ketooctadecanoate ethylene ketal.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05082856
Source datasetuspto-grants-1992_01
ORD IDord-83eed6c11e2a46f4baed3f8bbcb43945
Source noteuspto-grants-1992_01