Diisopropylethylamine → HCID 66805330, compound

Participants

Reaction Steps

3-(N-Tert-butoxycarbonyl-N-methylamino)pyrrolidine (4.993 mmol, 1 eq) and 4-chloropyridine hydrochloride (14.979 mmol, 3 eq) were dissolved in 2-propanol (15 ml) and DIPEA (19.972 mmol, 4 eq) and refluxed for 16 h. After monitoring by thin-layer chromatography, the reaction solution was diluted with sat. NaHCO3 solution and extracted with ethyl acetate (3×20 ml). The combined org. phases were washed with sat. NaCl solution, dried over magnesium sulfate and concentrated. The crude product was purified by column chromatography (silica gel, ethyl acetate:ethanol 10:1+ammonia (25% aq)). Yield: 61%.

Provenance & Evidence