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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 241039Generated: October 30, 2026

Red-Al → HCID 178519947, compound

https://huagongshe.com/reaction/241039

Reaction equation

Participants

RoleNameHCIDCharge
ReactantRed-AlHCID 16684438—
ReactantHCID 178470172HCID 178470172—
SolventTetrahydrofuranHCID 8028—
ProductHCID 178519947HCID 17851994771%

Reaction Conditions

Temperature0 °C

Reaction Steps

To a solution of ethyl 4-(4-bromophenyl)-1H-imidazole-2-carboxylate (1.30 g, 4.40 mmol) in THF (30 mL) was slowly added Red-Al (65 wt % in toluene, 2.0 mL, 6.16 mmol) at −25° C. The reaction mixture was stirred for 4 h at the same temperature then slowly warmed to 0° C. over 1 h and quenched with 20% sodium tartrate solution (30 mL). The reaction was extracted with ethyl acetate (70 mL) and the organic layer was left for 3 h at room temperature. A solid separated and was collected by filtration, washed with ethyl acetate and dried to afford (4-(4-bromophenyl)-1H-imidazol-2-yl)methanol (778 mg, 71.0%). MS (EI) for C10H9BrN2O: 254.1 (MH+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08648066B2
Source datasetuspto-grants-2014_02
ORD IDord-4869bba2920d4911a0a45af237840930
Source noteuspto-grants-2014_02