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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 609515Generated: October 31, 2026

2-Nitroimidazole → 1H-Imidazole, 1-(3-methyl-2-butenyl)-2-nitro-

https://huagongshe.com/reaction/609515

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-NitroimidazoleHCID 10701—
Reactant2-Butene, 1-bromo-3-methyl-HCID 70092—
ReactantSodiumHCID 5360545—
SolventAcetonitrileHCID 6342—
Product1H-Imidazole, 1-(3-methyl-2-butenyl)-2-nitro-HCID 1134436580%

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

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05997843
Source datasetuspto-grants-1999_12
ORD IDord-728138628f044e39bf42b12ad90f8c95
Source noteuspto-grants-1999_12