88521-59-9Relevant academic research and scientific papers
Cycloheptabenzoxazines 3. The Reaction of 6-Bromocycloheptabenzoxazine with o-Aminophenol
Nozoe, Tetsuo,Okai, Harue,Wakabayashi, Hidetsugu,Ishikawa, Sumio
, p. 2307 - 2314 (2007/10/02)
The reaction of 6-bromocycloheptabenzoxazine (19) and o-aminophenol (3) was studied and compared with that of 3-bromo-2-methoxytropone (2) with 3. 14H-Benzoxazinocycloheptabenzoxazine, 10-(o-hydroxyanilino)cycloheptabenzoxazine (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.
A NOVEL SYNTHESIS OF CYCLOHEPTADIBENZOXAZINES AND 14HBENZOXAZINOCYCLOHEPTABENZOXAZINES
Nozoe, Tetsuo,Okai, Harue,Wakabayashi, Hidetsugu,Ishikawa, Sumio
, p. 1145 - 1148 (2007/10/02)
The title compounds, namely, the chiral acetals and their positional isomers were efficiently prepared by heating 6-bromocycloheptabenzoxazines and the substituted o-aminophenols at 120 deg C in acetic acid.
