HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 894628Generated: October 30, 2026
Dimethylformamide → HCID 12926028, compound
https://huagongshe.com/reaction/894628
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Dimethylformamide | HCID 6228 | — |
| Reactant | Ethyl Bromide | HCID 6332 | — |
| Reactant | Sodium Bicarbonate | HCID 516892 | — |
| Reactant | HCID 12925993 | HCID 12925993 | — |
| Solvent | Water | HCID 962 | — |
| Product | HCID 12926028 | HCID 12926028 | — |
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
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US04284644 |
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| Source dataset | uspto-grants-1981_08 |
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| ORD ID | ord-8e6ed9fb2a9d4a3594f297ae47b62272 |
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| Source note | uspto-grants-1981_08 |
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