A Facile Synthesis of Angularly-Fused 3, 4, 4a, 10b-Tetrahydro-2H, 5H-pyrano[3, 2-c][1]benzopyrans by the One-pot Condensation between Salicylaldehydes and Unsaturated Alcohols

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著者

    • INOUE Seiichi
    • Department of Synthetic Chemistry, Faculty of Engineering, Yokohama National University
    • ASAMI Masatoshi
    • Department of Synthetic Chemistry, Faculty of Engineering, Yokohama National University
    • HONDA Kiyoshi
    • Department of Synthetic Chemistry, Faculty of Engineering, Yokohama National University
    • MIYAZAKI Hidekazu
    • Department of Synthetic Chemistry, Faculty of Engineering, Yokohama National University

抄録

Salicylaldehydes reacted with 5-methyl-4-hexen-1-ol (<B>4a</B>) or 6-methyl-5-hepten-2-ol (<B>4b</B>) in benzene in the presence of trimethyl orthoformate and a catalytic amount of <I>p</I>-toluenesulfonic acid at rt to give angularly-fused <I>trans</I>-5,5-dimethyl-3,4,4a,10b-tetrahydro-2<I>H</I>,5<I>H</I>-pyrano[3,2-c][1]benzopyrans (<B>6</B>) in high yields with complete stereoselectivity.

収録刊行物

  • Chemistry letters

    Chemistry letters 1996(10), 889-890, 1996-10

    The Chemical Society of Japan

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各種コード

  • NII論文ID(NAID)
    10002606942
  • NII書誌ID(NCID)
    AA00603318
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    03667022
  • データ提供元
    CJP書誌  J-STAGE 
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