m-Chloroperbenzoic acid → HCID 54710173, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 6-[N-methyl-N-(4-methylthiophenyl)carbamoyl]-2,3-dihydro-7-hydroxy-5-oxo-5H-pyrido[1,2,3-de]-1,4-benzoxazine (1 g) and m-chloroperbenzoic acid (0.5 g) in dichloromethane (50 ml) was stirred at 5° C. for 1 hour. The insoluble material was filtered and the filtrate was concentrated in vacuo. The residue was recrystallized from acetone to give pale brown crystals of 6-[N-methyl-N-(4-methylsulfinylphenyl)carbamoyl]-2,3-dihydro-7-hydroxy-5-oxo-5H-pyrido[1,2,3-de]-1,4-benzoxazine (0.82 g).

Provenance & Evidence