3-Aminopyridine → 3-Amino-1-[4-(4-chlorophenyl)-2,5-dioxo-1H-pyrrol-3-yl]pyridinium chloride

Participants

Reaction Conditions

Reaction Steps

A mixture of 3-chloro-4-(4-chlorophenyl)-1H-pyrrole-2,5-dione (100 mg, 0.41 mmol) and 3-aminopyridine (42.7 mg, 0.45 mmol) in dry THF (2.5 mL) was heated at 50° C. for 2 hours then stirred at room temperature overnight. The resulting suspension was filtered and the solid washed with dichloromethane (20 mL), then hexane (10 mL) to give the title compound as a solid.

Provenance & Evidence