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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1360951Generated: October 31, 2026

alpha-Bromo-o-chlorotoluene → HCID 44430140, compound

https://huagongshe.com/reaction/1360951

Reaction equation

Participants

RoleNameHCIDCharge
Reactantalpha-Bromo-o-chlorotolueneHCID 11905—
ReactantSodium hydrideHCID 24758—
ReactantAmmonium ChlorideHCID 25517—
Reactant5,6-Dichloro-2-(2,2,2-trifluoro-ethyl)-1H-indoleHCID 66968833—
Reactantdichloro-2-(2,2,2-trifluoro-ethyl)-1H-benzoimidazoleHCID 66968977—
SolventDimethylformamideHCID 6228—
ProductHCID 44430140HCID 44430140—

Reaction Conditions

Temperature0 °C

Reaction Steps

NaH (60%) (60 mg, 1.5 mmol) was added into a solution of dichloro-2-(2,2,2-trifluoro-ethyl)-1H-benzoimidazole. 5,6-Dichloro-2-(2,2,2-trifluoro-ethyl)-1H-indole (269 mg, 1 mmol) in DMF (5 ml) at 0° C. The resulting mixture was stirred at 0° C. for half hour. 2-chlorobenzyl bromide (283.5 mg, 1.5 mmol) was then added to the reaction mixture at 0° C. The reaction temperature was raised to 25° C. and then the reaction mixture was stirred for 18 hours. NH4Cl (aq.) was added and extracted with EtOAc. The organic layer was washed with brine, then dried over anhydrous MgSO4. The solvent was distilled out under reduced pressure. Column chromatography (silica gel, EtOAc/hexanes (0% to 60%) yielded the title compound as an off-white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07879895B2
Source datasetuspto-grants-2011_02
ORD IDord-2842df0a4c554a51b8333594a18bdfcc
Source noteuspto-grants-2011_02