Piperazine → N,2,6-Trimethyl-4-piperazin-1-yl-pyridine-3-carboxamide

Participants

Reaction Conditions

Reaction Steps

4-Chloro-N,2,6-trimethyl-pyridine-3-carboxamide (300 mg, 1.5 mmol) was mixed with piperazine (645 mg, 7.5 mmol) and pyridine (3 ml) and heated under microwave irridation at 180° C. for 15 minutes. The solvent was removed under reduced pressure, the residue was taken up in 0.5 M NaOH saturated with sodium chloride and extracted with dichloromethane (2×). The combined extracts were dried over sodium sulfate, the solvent was evaporated under reduced pressure to yield 280 mg of a yellow solid (1.1 mmol, 75%). NMR (1H, 300 MHz, CD3CN): 6.73 (s, 1H), 6.70 (s, 1H), 2.99-3.02 (m, 4H), 2.82-2.86 (m, 7H), 2.37 (s, 3H), 2.35 (s, 3H).

Provenance & Evidence