Triethylamine → 1-(4-Chlorobutoxymethyl)-2-bromo-4,5-dichloroimidazole

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Reaction Steps

To a mixture of 1.08 g of 2-bromo-4,5-dichloroimidazole, 0.51 g of triethylamine and about 30 ml of toluene was added dropwise 0.79 g of 4-chlorobutoxymethyl chloride at room temperature, and the resulting mixture was stirred at room temperature for 2 hours. The deposited crystal was filtered off and washed with about 10 ml of toluene. The filtrate thus obtained was concentrated under reduced pressure, and the residual oily product was purified by column chromatography on silica gel to obtain 0.60 g of 1-(4-chlorobutoxymethyl)-2-bromo-4,5-dichloroimidazole.

Provenance & Evidence