N,N-Diethylaniline → HCID 86685301, compound

Participants

Reaction Conditions

Reaction Steps

To a flask charged with 7-(4-bromophenyl)imidazo[1,2-c]pyrimidin-5(6H)-one (25.00 g, 86.173 mmol), phosphoryl trichloride (31.554 mL, 344.69 mmol), and N,N-diethylaniline (27.420 mL, 172.35 mmol) was added acetonitrile (200 mL) and the mixture was heated to 50° C. overnight. The reaction mixture was concentrated under reduced pressure and the residue diluted with water and DCM. The aqueous was neutralized with potassium carbonate and the bi-phasic mixture passed through a pad of celite to remove the insoluble material. The layers were separated and the aqueous extracted with DCM. The combined organic layers were dried over MgSO4 and concentrated under reduced pressure. The crude material was triturated with hexanes and the solids were collected by filtration to afford 7-(4-bromophenyl)-5-chloroimidazo[1,2-c]pyrimidine (10.369 g, 33.604 mmol, 38.997% yield). MS (apci) m/z=310.0 (M+H).

Provenance & Evidence