Mass spectral fragmentations of 2-phenyl-3H-indol-3-one N-oxide (2-phenylisatogen), 2-phenyl-4H-3,1-benzoxazin-4-one, and 1-phenylindoline-2,3-dione (N-phenylisatin)
Abstract
Mass spectral data provide evidence for an oxaziridine intermediate from the fragmentation patterns of 2-phenylisatogen and 2-phenyl-4H-3,1-benzoxazin-4-one.