STUDIES OF BENZOXAZINES. 16. SYNTHESIS AND REACTIVITY OF 2,4-SUBSTITUTED 4<i>H</i>-3,1-BENZOXAZINES
DOI:
https://doi.org/10.1007/1351Keywords:
2-aminopyridines, 4H-3, 1-benzoxazines, mass spectroscopic fragmentation, nucleophilic substitution, electrophilic substitution, synthesisAbstract
A novel method has been developed for preparation of substituted 4H-3,1-benzoxazines via formation of tetrafluoroborates. The substitution of halogen in 2-(α-haloalkyl)-4,4-diphenyl-4H-3,1-benzoxazines by NH and SH nucleophiles was performed. The effect of electrophilic substitution in the annelated aromatic ring in a series of 2,4-substituted 4H-3,1-benzoxazines has been studied.
Authors: E. V. Gromachevskaya, V. G. Kul'nevich, and T. P. Kosulina.
English translation in Chemistry of Heterocyclic Compounds, 2011, 47 (11), pp 1405-1414