反应详情

To a suspension of 5-acetoxy-12H-benzo[a]phenothiazine (10 g) in dichloromethane (125 cc) there was rapidly added a solution of 85% m-chloroperoxybenzoic acid (6.61 g) in methanol (125 ml). At first the solids dissolved, then after a few minutes a new solid separated out of solution. After 1 and 1/2 hours the mixture was filtered and the solid washed with dichloromethane. The title compound was thus obtained pure (8.76 g), m.p. 179°-181° C.

1. dissolutionAt first the solids dissolved
2. customafter a few minutes a new solid separated out of solution
3. filtrationAfter 1 and 1/2 hours the mixture was filtered
4. washthe solid washed with dichloromethane