Reactive troponoids and o-aminophenol. V. The reaction of 3-bromo-2-methoxytropone and o-aminophenol.
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概要
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The reaction products of the title substances in hot acetic acid were separated by preparative TLC into compounds <B>A</B>–<B>L</B> according to the <I>R</I><SUB>f</SUB>-values, and the structural assignments for these products were now made as follows: <B>A</B>, 14<I>H</I>-[1,4]benzoxazino[3′,2′ : 3,4]cyclohepta[1,2-<I>b</I>][1,4]benzoxazine; <B>B</B>, 1-formylphenoxazine; <B>F</B>, cyclohepta[2,1-<I>b</I> : 2,3-<I>b</I>′]di[1,4]benzoxazine; <B>G</B>, cyclohepta[<I>b</I>][1,4]benzoxazin-10(11<I>H</I>)-one or its enolic form; <B>J</B>, cyclohepta[<I>b</I>][1,4]benzoxazin-6(11<I>H</I>)-one; <B>L</B>, 6-(<I>o</I>-hydroxyanilino)cyclohepta[<I>b</I>][1,4]benzoxazine hydrobromide. A small amount of 2-methylamino-3<I>H</I>-phenoxazin-3-one was also produced. Possible reaction pathways for the formation of these products are also discussed.
- 公益社団法人 日本化学会の論文
著者
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WAKABAYASHI Hidetsugu
Tokyo Research Laboratories, Kao Corporation
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Someya Taichi
Central Research Laboratory of Takasago Perfumery Co., Ltd.
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Okai Harue
Tokyo Research Laboratories, Kao Corporation
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Wakabayashi Hidetsugu
Tokyo Research Laboratory of Kao Soap Co., Ltd.
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Nozoe Tetsuo
Central Research Laboratory of Takasago Perfumery Co., Ltd.
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Okai Harue
Tokyo Research Laboratory of Kao Soap Co., Ltd.
関連論文
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