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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 230435Generated: October 30, 2026

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

https://huagongshe.com/reaction/230435

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 numberUS07566733B2
Source datasetuspto-grants-2009_07
ORD IDord-7b8f41e7cbd741daa8c05cdd328a999e
Source noteuspto-grants-2009_07