反应详情

To 2-amino-3-fluoro-benzoic acid (2.3 g) in DCM (20 mL) was added trichloromethylchloroformate (3.0 g) and the mixture was stirred at rt for 16 hours. The reaction was then concentrated to provide 8-fluoro-1H-benzo[d][1,3]oxazine-2,4-dione (2.5 g).

1. concentrationThe reaction was then concentrated