Carbon tetrabromide → 1-(3-Bromopropyl)-1H-imidazole

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Reaction Steps

A mixture of 1H-imidazole-1-propanol (1.00 g, 3.65 mmol—prepared according to patent: WO 9722596 A1), carbon tetrabromide (1.80 g, 5.47 mmol) and triphenyl phosphine (1.43 g, 5.47 mmol) was stirred at ambient temperature for 18 hours. The solvent was evaporated and the residue purified by flash chromatography on silica gel. Elution with 10% methanol in dichloromethane yielded the title compound (425 mg, 35% yield) as a pale yellow solid:

Provenance & Evidence