Ethanolamine → HCID 178438962, Verbindung

Beteiligte Stoffe

Reaktionsschritte

To a solution of (2-isopropylphenyl)isothiocyanate (2.00 g) in diethylether (20 ml) was added 2-aminoethanol (0.69 g). The mixture was stirred at room temperature for 1 hour and concentrated under reduced pressure. To the obtained oil was added concentrated hydrochloric acid (5 ml). The mixture was refluxed for 3 hours. The reaction mixture was cooled to room temperature and poured into an aqueous solution of 20% sodium hydroxide (25 ml). The mixture was extracted with dichloromethane (60 ml), dried over anhydrous magnesium sulfate and concentrated under reduced pressure. The obtained residue was purified by silica gel column chromatography (n-hexane/ethyl acetate) to give 2-(2-isopropylphenyl)imino-1,3-thiazolidine (1.80 g, yield: 73%) as a white crystal. M.p. 76-77° C.

Herkunft & Nachweise