2-Chloroethanol → 1-(2-Hydroxyethyl)-4-methylpiperazine

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Reaction Steps

N-methylpiperazine (10 g; 100 mmol) and 2-chloroethanol (8.05 g; 100 mmol) are stirred at 100° C. for 4 h. The highly viscous reaction medium is supplemented with 250 ml of acetone and the resulting suspension is neutralized with 15 ml of triethylamine. After filtration of the triethylamine hydrochloride, the solvent is evaporated under reduced pressure. The desired compound is obtained after purification by chromatography on an alumina column (Merck®; Aluminum Oxide 90; 63-200 μm, eluent: ethyl acetate) in the form of a colorless oil. Yield: 75%

Provenance & Evidence