Phenacyl bromide → HCID 90409179, compound

Participants

Reaction Steps

The 2-bromoacetophenone (3.9 g, 19 mmol) [Aldrich, cat. #115835] was added portion wise to a stirred suspension of 2-amino-3-nitrophenol (2.5 g, 16 mmol) [Aldrich, cat. #297003] and K2CO3 (3.4 g, 24 mmol) in MeCN (100 mL) at room temperature. The reaction was monitored by LC/MS. After stirring for 3 h the reaction was complete and then EtOAc added and solution filtered to remove the solids and the organic layer was washed with water, 1 N HCl, brine, dried over MgSO4, filtered and concentrated to give 5-nitro-3-phenyl-2H-1,4-benzoxazine as a dark oil (4.1 g, 100%). LCMS calc. for C14H11N2O3 (M+H)+: m/z=255.3. found: 255.1.

Provenance & Evidence