反应详情

温度

50 °C

To a solution of tert-butyl-dimethyl-((S)-1-oxiranylmethoxy)-silane (commercial; 10.0 g, 53 mmol) in MeCN (160 mL) was added LiClO4 (16.9 g, 159 mmol). 6-amino-4H-benzo[1,4]oxazin-3-one (commercial; 8.72 g, 53.1 mmol) was added and the mixture was stirred at 50° C. for 6 h. The solvent was removed in vacuo and the residue was purified by CC (DCM/MeOH/NH4OH 1000:25:2→1000:100:2) to afford the title compound as a pale brown foam (10.24 g, 55% yield).

1. customThe solvent was removed in vacuo
2. customthe residue was purified by CC (DCM/MeOH/NH4OH 1000:25:2→1000:100:2)