Synthesis of new naturally occurring 4-phenyl-2H-1-benzopyran-2-ones.

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概要

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• 5,7-Dimethoxy-4-(4-hydroxyphenyl)-2<I>H</I>-1-benzopyran-2-one and 5,7-dimethoxy-4-(4-methoxyphenyl)-2<I>H</I>-1-benzopyran-2-one, two new neoflavonoids occurring in <I>Courtarea hexandra</I> have been synthesized via Pechmann condensation. Attempts made to synthesize another 4-arylcoumarin, 5-hydroxy-7-methoxy-4-(2,5-dihydroxyphenyl)-2<I>H</I>-1-benzopyran-2-one, constituent of the same plant, led to the formation of the hitherto unknown 2-ethoxy-6-hydroxy-4<I>H</I>-1-benzopyran-4-one.

• 公益社団法人 日本化学会の論文

著者

• Parmar Virinder

  Department Of Chemistry Bioorganic Laboratory University Of Delhi

• Jain Rajni

  Department of Chemistry, University of Delhi

• Singh Suddham

  Department of Chemistry, University of Delhi

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• Synthesis of new naturally occurring 4-phenyl-2H-1-benzopyran-2-ones.

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