Phosphorus oxychloride → 4-Chloro-5-phenyl-6-(4-(2-(pyrrolidin-1-yl)ethoxy)phenyl)furo[2,3-d]pyrimidine

Participants

Reaction Steps

Into a 50 mL round bottom flask was placed 5-phenyl-6-(4-(2-(pyrrolidin-1-yl)ethoxy)phenyl)furo[2,3-d]pyrimidin-4 (3H)-one 46 (132 mg, 0.329 mmol), and benzene (40 mL). The flask was equipped with a magnetic stir bar, dean-stark trap and a reflux condenser. The reaction was brought to reflux with some of the solvent having been distilled into the dean-stark trap. The reaction was allowed to cool to room temperature and phosphorous oxychloride (300 mg, 1.96 mmol) was added dropwise. The reaction was heated at reflux for 20 hours.

Provenance & Evidence