Triethylamine → 5-Bromo-N-[2-hydroxy-1-(hydroxymethyl)ethyl]-2-thiophenesulfonamide

Participants

Reaction Steps

To a stirred solution of 2-amino-1,3-propanediol (1.26 g, 13.8 mmol) in THF (20 ml) was added at 0° C. (ice water bath) commercially available 5-bromo-thiophene-2-sulfonyl chloride (1.0 g, 3.82 mmol) and triethylamine (0.71 ml, 5.07 mmol). The reaction mixture was stirred at room temperature for 16 h and evaporated. The crude product was further purified by flash chromatography (ethyl acetate/heptane) to yield the title compound (0.87 g, 72%) as a white solid. MS (ISN) 313.9 [(M−H)−], mp 80° C.

Provenance & Evidence