Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Ethyl Acetate | HCID 8857 | — |
| Reactant | N-bromobutanimide | HCID 67184 | — |
| Reactant | 5,6-Dihydro-4H-pyrrolo[3,2,1-ij]quinoline-1,2-dione | HCID 2786143 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 14988431 | HCID 14988431 | — |
Reaction Steps
A mixture of 5,6-dihydro-4H-pyrrolo[3,2,1-ij]quinoline-1,2-dione (10 g) and N-bromosuccinimide (10 g) in DMF (60 ml) was stirred at 70° C. for 5 hours. After cooling, to the mixture was added ethyl acetate (500 ml) and washed with water and saturated aqueous sodium chloride solution successively, and then dried over anhydrous sodium sulfate. Evaporation of ethyl acetate afforded the title compound The compound was recrystallized from ethanol to give 14 g (98.4%) as dark red needles.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US05147874 |
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| Source dataset | uspto-grants-1992_09 |
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| ORD ID | ord-464a3250c8e144f68a4f804ab07183d0 |
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| Source note | uspto-grants-1992_09 |
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