2-[(1H-Imidazol-2-yl)methyl]aniline → 1-[2-(2-Imidazolylmethyl)-phenylthiocarbamoyl]-4-ethoxycarbonylpiperazine

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Reaction Steps

To a suspension of 3.8 g of 2-(2-aminobenzyl)imidazole in 38 ml of tetrahydrofuran and 3.23 ml of triethylamine is added dropwise a solution of 5.5 g of 4-ethoxycarbonyl-1-piperazinyl-thiocarbonyl chloride in 10 ml of methylene chloride at room temperature. The mixture is stirred for 1 week and the suspension filtered. The filtrate is washed with first 10% aqueous potassium carbonate, then with water, dried and evaporated to dryness to give amorphous 1-[2-(2-imidazolylmethyl)phenylthiocarbamoyl]-4-ethoxycarbonylpiperazine, characterized by NMR.

Provenance & Evidence