4-Chloro-9H-dipyrido[2,3-b;4',3'-d]pyrrole-6-carboxylic acid → 4-Chloro-9H-dipyrido[2,3-b;4',3'-d]pyrrole

Participants

Reaction Steps

A mixture of 4-chloro-9H-dipyrido[2,3-b;4′,3′-d]pyrrole-6-carboxylic acid (390 mg, 1.57 mmol) in N-methylpyrrolidine (8 mL) was heated under reflux for 8 hours. The mixture was allowed to cool to ambient temperature. The compound was used as a solution in NMP for subsequent reactions. LCMS (Method B): RT=2.15 min, M+H+=204.

Provenance & Evidence