Phosphorus oxychloride → 7-Bromo-4-chloro-2-methoxyquinazoline

Participants

Reaction Steps

A solution of 7-bromo-2-methoxyquinazolin-4(3H)-one (1.900 g, 7.45 mmol) in 30 mL DCM was treated with DBU (1.123 ml, 7.45 mmol) and was allowed to stir for 20 minutes. The cloudy purple solution was then treated with POCl3 (0.833 ml, 8.94 mmol) and was allowed to stir for one hour at room temperature. LC/MS showed mostly product, so the reaction mixture was concentrated. The crude residue was carried on to step 3 without purification. (M+H)+=271.2.

Provenance & Evidence