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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 497178Generated: October 23, 2026

Triethylamine → 1-[4-(Methylsulfonyl)phenyl]-3-methylpentane-1,4-dione

https://huagongshe.com/en/reaction/497178

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
ReactantMethyl isopropenyl ketoneHCID 13143—
Reactant4-(Methylsulfonyl)benzaldehydeHCID 220376—
Catalyst3-Benzyl-5-(2-hydroxyethyl)-4-methylthiazolium chlorideHCID 2833352—
SolventEthanolHCID 702—
Product1-[4-(Methylsulfonyl)phenyl]-3-methylpentane-1,4-dioneHCID 218628394.3%

Reaction Steps

To a stirred solution of 4-(methylsulfonyl)benzaldehyde (1.84 g, 10 mmol) in ethanol (8 mL) was added 3-methyl-3-buten-2-one (0.8 g, 9.5 mmol), 3-benzyl-5-(2-hydroxyethyl)4-methylthiazolium chloride (0.51 g, 1.9 mmol), and Et3N (2.65 mL, 19 mmol) at room temperature. After stirring for 3 hours, volatiles were removed by evaporation. The residue was purified by flash chromatography on silica gel eluting with ethyl acetate/hexane (1/2) to provide the subtitle compound (0.11 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06949536B2
Source datasetuspto-grants-2005_09
ORD IDord-e10ed4ece8f342968dfb5394edfe7316
Source noteuspto-grants-2005_09