反应详情

A stirred solution of 6-hydroxymethyl-4H-benzo[1,4]thiazin-3-one (3.5 g) in chloroform (150 mL) and tetrahydrofuran (300 mL) was treated with manganese dioxide (7.8 g) for 18 hours and was filtered and evaporated to give a white solid (2.5 g).

1. filtrationwas filtered
2. customevaporated