Piperazine → 5-Chloro-4,6-dimethyl-2-(piperazin-1-yl)pyridine-3-carbonitrile

Participants

Reaction Conditions

Reaction Steps

A mixture of 2,5-dichloro-4,6-dimethylnicotinonitrile (200 mg, 0.995 mmol), K2CO3 (275 mg, 1.990 mmol) and piperazine (5141 mg, 59.7 mmol) was heated under microwave heating at 120° C. for 15 minutes. After cooling to room temperature the mixture was partitioned between 1N HCl and DCM. The layers were separated and the aqueous layer was extracted once with DCM, basified with NaOH (4N) and extracted with DCM (4×). The combined organic layers were dried (sodium sulfate) and concentrated under reduced pressure to give 231 mg of a solid (0.922 mmol, yield 93%) MS (multi-mode) m/z=251.2 [M+1]+.

Provenance & Evidence