1038478-95-3

Upstream product

• 1038478-79-3 4-{[(3,4-dihydro-4-methyl-7-nitro-3-oxo-2H-1,4-benzoxazin-2-yl)amino]methyl}benzonitrile 
• 24424-99-5 di-tert-butyl dicarbonate 

Relevant academic research and scientific papers

Ring opening of 2-(benzylamino)-2H-1,4-benzoxazin-3(4H)-ones and 2-bromo-2H-1,4-benzoxazin-3(4H)-ones

Substituted 2-(benzylamino)-2H-1,4-benzoxazin-3(4H)-ones are unstable under alkaline and acidic conditions, undergoing opening of the benzoxazinone ring. 2-Bromo-2H-1,4-benzoxazin-3(4H)-ones show similar degradation under alkaline conditions, while replacement of Br at C(2) to give 2-hydroxy-2H-1,4-benzoxazin- 3(4H)-ones was observed only under mild alkaline conditions. Mechanisms of ring opening and degradation to 2-aminophenol derivatives are proposed.