Piperazine → 3-(Piperazin-1-yl)isoquinoline

Participants

Reaction Conditions

Reaction Steps

A mixture of 3-chloroisoquinoline (200 mg, 1.22 mmol) and piperazine (2.10 g, 24.4 mmol) in ethylene glycol (2 ml) was heated to 150° C. and stirred at that temperature for 24 hours. The reaction was allowed to cool down to room temperature. The crude mixture was partitioned between water and ethyl acetate. The organic layer was washed with brine, dried over magnesium sulfate, filtered and concentrated under vacuo. The residue was and purified on silica gel by flash column chromatography to give the title compound as a pale brown solid (131 mg, 50% yield).

Provenance & Evidence