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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 894628Generated: October 30, 2026

Dimethylformamide → HCID 12926028, compound

https://huagongshe.com/reaction/894628

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
ReactantEthyl BromideHCID 6332—
ReactantSodium BicarbonateHCID 516892—
ReactantHCID 12925993HCID 12925993—
SolventWaterHCID 962—
ProductHCID 12926028HCID 12926028—

Reaction Conditions

Temperature100 °C

Reaction Steps

A mixture of 7-aminospiro[benzo[b]furan-2(3H),1'-cyclopropane]-3-one (1.75 g.) and ethylbromide (5.45 g.) and sodium hydrogen carbonate (1.68 g.) in N,N-dimethylformamide (50 ml.) was heated at 100° C. for 4 hours. The reaction mixture was diluted with water and extracted with ethyl acetate. The extract was washed with water and dried, then the solvent was evaporated off. The residue was subjected to column-chromatography on silica-gel. The first fraction eluted with hexane-ethyl acetate (97:3) was recrystallized from ethanol to give 7-diethylaminospiro[benzo[b]furan-2(3H),1'-cyclopropane]-3-one (0.801 g.) as yellow needles melting at 39.3° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04284644
Source datasetuspto-grants-1981_08
ORD IDord-8e6ed9fb2a9d4a3594f297ae47b62272
Source noteuspto-grants-1981_08