70664-12-9Relevant 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.
Reactive Troponoids and o-Aminophenol. V. The Reaction of 3-Bromo-2-methoxytropone and o-Aminophenol
Someya, Taichi,Okai, Harue,Wakabayashi, Hidetsugu,Nozoe, Tetsuo
, p. 2756 - 2761 (2007/10/02)
The reaction products of the title substances in hot acetic acid were separated by preparative TLC into compounds A-L according to the Rf-values, and the structural assignments for these products were now made as follows: A, 14H-benzoxazinocycloheptabenzoxazine; B, 1-formylphenoxazine; F, cycloheptadibenzoxazine; G, cycloheptabenzoxazin-10(11H)-one or its enolic form; J, cycloheptabenzoxazin-6(11H)-one; L, 6-(o-hydroxyanilino)cycloheptabenzoxazine hydrobromide. A small amount of 2-methylamino-3H-phenoxazin-3-one was also produced. Possible reaction pathways for the formation of these products are also discussed.
