Potassium Carbonate → HCID 67207317, compound

Participants

Reaction Steps

Piperazine-1-carboxylic acid tert-butyl ester (1.17 g, 6.28 mmol, Lancaster) and toluene-4-sulfonic acid 2-(2,2-dimethyl-[1,3]dioxolan-4-yl)-ethyl ester (1.98 g, 6.6 mmol, prepared from (2,2-dimethyl-[1,3]dioxolan-4-yl)-ethanol and tosyl chloride) and potassium carbonate (1 g, Fisher) were stirred in acetonitrile (22 mL) overnight at room temperature. After aqueous workup, the residue was purified by flash column chromatography to give 4-(3,4-dihydroxy-butyl)-piperazine-1-carboxylic acid tert-butyl ester (0.52g), which was deprotected with 1 N hydrochloric acid in methanol at 50° C. to give 4-piperazin-1-yl-butane-1,2-diol hydrochloride (360 mg).

Provenance & Evidence