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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 344681Generated: October 31, 2026

1,2-Dibromoethane → 1-Ebio

https://huagongshe.com/reaction/344681

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,2-DibromoethaneHCID 7839—
Reactant1-Bromo-2-ChloroethaneHCID 7849—
Reactant1-EbioHCID 82320—
SolventTetrahydrofuranHCID 8028—
Product1-EbioHCID 82320—
Product2-(3-ethyl-2,3-dihydro-2-oxo-1H-benzimidazol1-yl)ethyl chlorideHCID 15235716—

Reaction Steps

When an equivalent amount of 3-ethyl-2-benzimidazolinone is substituted for 1-ethoxycarbonyl-2H-indazolin-3-one and 2-bromochloroethane is substituted for 1,2-dibromoethane in the procedure of Example 19 using tetrahydrofuran as solvent, 2-(3-ethyl-2,3-dihydro-2-oxo-1H-benzimidazol1-yl)ethyl chloride is isolated after column chromatography (3-ethyl-2-benzimidazolinone, Aldrich, 6%, A).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05053411
Source datasetuspto-grants-1991_10
ORD IDord-d37a5e5e28b3461f99039a87156b426e
Source noteuspto-grants-1991_10