210751-92-1Relevant academic research and scientific papers
Studies of 4H-3,1-benzoxazines. 13. Bromination of 1,2-dihydro-4H-3,1-benzoxazines
Gromachevskaya,Krapivin,Zavodnik,Kul'nevich
, p. 1209 - 1214 (1997)
Bromination of 2,4-substituted 1,2-dihydro-4H-benzoxazines with bromine in acetic acid was conducted. It was shown that either the corresponding 6,8-dibromo-1,2-hydrobenzoxazines or the products of their dehydro-genation - 6,8-dibromobenzoxazines, are pri
Studies of benzoxazines 16*. synthesis and reactivity of 2,4-substituted 4H-3,1-benzoxazines
Gromachevskaya,Kul'Nevich,Kosulina
, p. 1405 - 1414 (2014/07/21)
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.
