Highly selective formation of 2-aminophenoxazin-3-one by catalytic oxygenation of o-aminophenol

Article abstract of DOI:10.1246/cl.1996.819

2-Aminophenol readily undergoes highly selective Co(salen) catalyzed oxygenation in methanol at room temperature resulting unexpectedly in the quantitative formation of 2-aminophenoxazin-3-one. The oxygenation of substituted 2-aminophenols provides useful information to discuss the reaction path.