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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1712437Generated: October 31, 2026

Carbon tetrabromide → HCID 68499348, compound

https://huagongshe.com/reaction/1712437

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCarbon tetrabromideHCID 11205—
ReactantAmmonium ChlorideHCID 25517—
ReactantHCID 22409067HCID 22409067—
ReactantButyllithiumHCID 178418339—
SolventTetrahydrofuranHCID 8028—
ProductHCID 68499348HCID 68499348—

Reaction Conditions

Temperature-70 °C

Reaction Steps

The solution of 1.05 g of 1-(3-methoxypropyl)-1H-imidazole in 14 ml of tetrahydrofuran is cooled to −70° C. and admixed slowly with 4.6 ml of n-butyllithium (1.6M in hexane). The mixture is stirred at −70° C. over 1 hour and subsequently admixed slowly with the solution of 2.54 g of tetrabromomethane in 14 ml of tetrahydrofuran. After a further 30 minutes, the reaction mixture is admixed with 25 ml of saturated aqueous ammonium chloride solution and extracted with tert-butyl methyl ether (2×25 ml). The organic phases are washed with brine, (20 ml), dried over sodium sulphate, filtered and concentrated by evaporation. The title compound is obtained as a colourless oil from the residue by means of flash chromatography (SiO2 60F). Rf=0.51 (200:20:1 dichloromethane-methanol-conc. ammonia); Rt=1.78.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07790715B2
Source datasetuspto-grants-2010_09
ORD IDord-f7e897babb5b4653b367c4949c819213
Source noteuspto-grants-2010_09