<I>tert</I>-Butylation of 1-Naphthol with <I>tert</I>-Butyl Alcohol or <I>tert</I>-Butyl Chloride in the Presence of Sulfuric Acid or Zinc Chloride

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  • 硫酸または塩化亜鉛を触媒とする第3ブチルアルコールあるいは第3塩化ブチルによる1-ナフトールの第3ブチル化
  • リュウサン マタハ エンカ アエン オ ショクバイ ト スル ダイ3 ブチルアルコール アルイハ ダイ3 エンカ ブチル ニ ヨル 1-ナフトール ノ ダイ3 ブチルカ
  • 1-ナフトールの第3ブチル化反応に関する研究 (第1報)

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tert-Butylation of 1-naphthol with tert-butyl alcohol in acetic acid in the presence of sulfuric acid, and with tert-butyl chloride in tetrachloroethane or chloroform in the presence of anhydrous zinc chloride were studied.<BR>The reaction products were separated and identified.<BR>In the former reaction, the following products were obtained ; 2-tert-butyl-1- naphthol (the main product), 2, 4-di-tert-butyl-1-naphthol, 4-tert-butyl-l-naphthol, 2-tert-butyl-1, 4-naphthoquinone and 3, 3'-di-tert-butyl-4, 4'-dinaphthoquinone.<BR>In the latter, the main product was 3, 6-di-tert-butyl-1-naphthol, and the products described above were also detected.<BR>3, 6-Di-tert-butyl-1-naphthol was obtained in about 40% yield in chloroform, and 4-tert-butyl-l-naphthol was obtained in about 42% yield in tetrachloroethane.

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