HuagongsheHuagongshe Chemistry Print Report · For research reference only
2-Nitroimidazole → 1H-Imidazole, 1-(3-methyl-2-butenyl)-2-nitro-
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 2-Nitroimidazole | HCID 10701 | — |
| Reactant | 2-Butene, 1-bromo-3-methyl- | HCID 70092 | — |
| Reactant | Sodium | HCID 5360545 | — |
| Solvent | Acetonitrile | HCID 6342 | — |
| Product | 1H-Imidazole, 1-(3-methyl-2-butenyl)-2-nitro- | HCID 11344365 | 80% |
Reaction Steps
To the sodium salt of 2-nitroimidazole prepared above was added acetonitrile (50 ml), 15-crown-5-ether (3.5 ml, 14.3 mmol) and 4-bromo-2-methyl-2-butene (2 ml; 17.4 mmol). The mixture was stirred at RT for ca 16 h. and then the solvent was removed to leave a crude semi-solid which was purified by column chromatography on silica. The intermediate product, 1-(3-methyl-2-butenyl)-2-nitroimidazole (80% yield) was eluted using a mixture of petroleum ether (40-60)/ethyl acetate (ratio 4:1 respectively).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05997843 |
| Source dataset | uspto-grants-1999_12 |
| ORD ID | ord-728138628f044e39bf42b12ad90f8c95 |
| Source note | uspto-grants-1999_12 |