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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 272630Generated: October 31, 2026

Ethyl-4-acetyl-3,5-dimethylpyrrole-2-carboxylate → HCID 68561273, compound

https://huagongshe.com/reaction/272630

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl-4-acetyl-3,5-dimethylpyrrole-2-carboxylateHCID 16947—
Reactanttert-Butoxy bis(dimethylamino)methaneHCID 79885—
SolventTetrahydrofuranHCID 8028—
ProductHCID 68561273HCID 68561273—

Reaction Conditions

Temperature50 °C

Reaction Steps

In a dry flask containing THF (15 mL) was added 4-acetyl-3,5-dimethyl-1H-pyrrole-2-carboxylic acid ethyl ester (2.0 g, 9.3 mmol) then Bredereck's reagent (5 mL). The reaction was stirred at 50° C. for 20 hours. The resulting precipitate formed during the reaction was removed by filtration and washed with hexanes. The enaminone was recovered as a yellow solid (2.2 g), HPLC Rt=4.0 minutes; FIA, ES+=265.1

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07456190B2
Source datasetuspto-grants-2008_11
ORD IDord-593cb93a021344148565231a66b138f0
Source noteuspto-grants-2008_11