Bulletin of the Chemical Society of Japan p. 2307 - 2314 (1989)
Update date:2022-07-29
Topics:
Nozoe, Tetsuo
Okai, Harue
Wakabayashi, Hidetsugu
Ishikawa, Sumio
The reaction of 6-bromocyclohepta<1,4>benzoxazine (19) and o-aminophenol (3) was studied and compared with that of 3-bromo-2-methoxytropone (2) with 3. 14H-<1,4>Benzoxazino<3',2':3,4>cyclohepta<1,2-b><1,4>benzoxazine, 10-(o-hydroxyanilino)cyclohepta<1,4>benzoxazine (D), 1- and 4-formylphenoxazines and their Schiff bases (C and X) were obtained in very good yields by modifying the conditions of the reaction of 19 with 3.Structures of D, C, and their isomers were determined and the possible reaction pathways for the formation of various products are discussed.
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