反应详情

2-[6-(n-Pentylthio)-2-pyridyl]-4H-1,3-benzothiazine-4-one (0.15 g, 0.44 mmol) was dissolved in chloroform (50 ml), and a solution of 3-chloroperbenzoic acid (ca. 77%, 0.10 g, 0.46 mmol) in chloroform (10 ml) was added dropwise thereto. The reaction mixture was stirred at room temperature for 1 hr. The solvent was evaporated, and the residue was recrystallized from ethanol to give the titled compound (0.075 g, 48%) as white crystals.

1. customThe solvent was evaporated
2. customthe residue was recrystallized from ethanol