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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 5249Generated: October 25, 2026

Hydrochloric Acid → HCID 178418644, compound

https://huagongshe.com/reaction/5249

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantStearoyl chlorideHCID 8212—
ReactantTriethylamineHCID 8471—
ReactantTetronic acidHCID 521261—
Catalyst4-(Dimethylamino)pyridineHCID 14284—
SolventDichloromethaneHCID 6344—
SolventEthyl AcetateHCID 8857—
ProductHCID 178418644HCID 17841864458%

Reaction Steps

To a stirring solution of 1.6 g (16 mmol) of tetronic acid in 75 mL of methylene chloride is added 2.5 mL (17.86 mmol) of triethylamine and 640 mg of 4-dimethylaminopyridine at 0° C. Next, 5.0 g (17.6 mmol) of stearoyl chloride is added and the reaction is stirred overnight at room temperature. The reaction is acidified with 1.0N HCl and extracted with two 100 mL portions of methylene chloride. The combined organic layers are dried over MgSO4 and concentrated in vacuo affording crude compound. Pure material was obtained by trituration with ethyl acetate as affording 3.3 g (58%) of 4-hydroxy-3-(1-oxooctadecyl)-2(5H)-furanone.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05242945
Source datasetuspto-grants-1993_09
ORD IDord-86ae5c67c1df403db2f7cf7d7103c33f
Source noteuspto-grants-1993_09