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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1781391Generated: October 26, 2026

1,2-Dibromoethane → 1,3-Dihydro-1-(2-bromoethyl)-3-isopropenyl-2h-benzimidazol-2-one

https://huagongshe.com/reaction/1781391

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,2-DibromoethaneHCID 7839—
ReactantSodium hydrideHCID 24758—
Reactant1,3-Dihydro-1-(1-methylvinyl)-2H-benzimidazol-2-oneHCID 100278—
SolventDimethylformamideHCID 6228—
Product1,3-Dihydro-1-(2-bromoethyl)-3-isopropenyl-2h-benzimidazol-2-oneHCID 19045390—

Reaction Steps

1-Isopropenylbenzimidazolone (J. Davol, J. Chem. Soc., 1960, 308) was alkylated with 1,2-dibromoethane using sodium hydride in DMF. The product was purified by chromatography and crystallization from cyclohexane to give 1-isopropenyl-3-(2-bromoethyl)benzimidazolone.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05633247
Source datasetuspto-grants-1997_05
ORD IDord-e8fb55e1737e4827b7e769d1e042ed5c
Source noteuspto-grants-1997_05