Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2116435Generated: October 31, 2026

Ethylene Glycol → HCID 69287399, compound

https://huagongshe.com/reaction/2116435

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthylene GlycolHCID 174—
ReactantWaterHCID 962—
ReactantTolueneHCID 1140—
Reactant4-VinylbenzaldehydeHCID 39389—
Catalystp-Toluenesulfonic acid monohydrateHCID 521998—
ProductHCID 69287399HCID 6928739958%

Reaction Steps

In 170 mL of toluene were dissolved 17.38 g of 4-vinylbenzaldehyde and 10.89 g of ethylene glycol. To the solution were added 0.25 g of p-toluenesulfonic acid monohydrate and 0.22 g of p-hydroquinene, and the mixture was heated at reflux. Water generated during the reaction was removed by a Dean-Stark trap. After 8 hours, it was allowed to be cooled and evaporated under a reduced pressure. The residue was distilled under vacuum (92 to 93° C./0.45 mmHg), to give 13.44 g of 4-(2,5-dioxocyclopentyl)styrene (yield: 58%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07439005B2
Source datasetuspto-grants-2008_10
ORD IDord-86faf18d56974b5c88066a8636710bb9
Source noteuspto-grants-2008_10