Studies of 4H-3,1-benzoxazines. 13. Bromination of 1,2-dihydro-4H-3,1-benzoxazines

Article abstract of DOI:10.1007/BF02290872

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