• Chromones - Part I. Nitration of some 7-hydroxychromones and their methyl ethers

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/seca/029/05/0314-0321

    • Keywords

       

      Nitration; Methyl Ether; Chromones; Caustic Soda; Concentrate Sulphuric Acid

    • Abstract

       

      No systematic study of the nitration of chromones appears to have been carried out previously, though a few naturally occurring flavones have been nitrated. In the present work, nitration of 7-hydroxy-2-methyl-chromone and 7-hydroxyflavone and their methyl ethers has been studied. The mononitro-derivatives have been found to be 8-nitro compounds while the di-derivatives were 6∶8-dinitro products. 7-Hydroxyflavone gave also a trinitro derivative which was found to be 7-hydroxy-6 ∶ 8 ∶ 4′-trinitroflavone. The constitutions of the nitro compounds were proved by alkaline hydrolysis.

    • Author Affiliations

       

      A M Mehta1 G V Jadhav1 R C Shah1

      1. Organic Chemistry Laboratory, Royal Institute of Science, Bombay
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