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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 341669Generated: October 26, 2026

Sulfuric Acid → 3(2H)-Furanone, dihydro-2,5-diethyl-2,5-dimethyl-

https://huagongshe.com/reaction/341669

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
Reactant3,6-Dimethyl-4-octyne-3,6-diolHCID 6546—
CatalystMercuric acetateHCID 15337—
SolventWaterHCID 962—
Product3(2H)-Furanone, dihydro-2,5-diethyl-2,5-dimethyl-HCID 28877435.1%

Reaction Conditions

Temperature80 °C

Reaction Steps

A mixture of mercury (II) acetate (2.7 g, 0.0084 mol), sulfuric acid (2.7 ml, 0.027 mol), water (270 ml) and 3,6-dimethyl-oct-4-yne-3,6-diol (27.0 g, 0.159 mol) is heated at 80° C. The reaction mixture is maintained at 80° C. for 4 hours and allowed to cool to ambient temperature. The mixture is extracted with diethyl ether (3×150 ml), the organic phases are combined, washed with water, and dried over anhydrous sodium sulfate. The mixture is filtered and the filtrate is evaporated under reduced pressure to give 2,5-diethyl-2,5-di-methyldihydrofuran-3-one (20 g) as a colourless oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08895761B2
Source datasetuspto-grants-2014_11
ORD IDord-73bcf5a311c34779b8bbb4d7de25a052
Source noteuspto-grants-2014_11