MASS-SPECTROMETRIC STUDY OF 5,6-DIHYDRO-4H-1,3-OXAZIN-5-ONES
Under the influence of electron impact, 2-aryl-1,3-oxazin-5-ones undergo fragmentation primarily with the elimination of the C2H2O2 group of atoms, as well as with the formation of aroyl cations.The complete absence of the retrodiene fragmentation that is
Sharbatyan, P. A.,Lebedev, A. T.,Kartsev, V. G.,Sipyagin, A. M.
p. 34 - 38
(2007/10/02)
1,3-Oxazines. Intramolecular Cyclization of 1-Diazo-3-benzamidopropan-2-ones
2-Aryl-5,6-dihydro-4H-1,3-oxazin-5-ones were obtained in the reaction of 1-diazo-3-benzamidopropan-2-ones with acidic agents.