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Synthesis of linear diphenyl furanocoumarins

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Abstract

The elegant and direct synthesis of linear 2′-3′-diphenyl furanocoumarins is recorded for the first time by submitting the desyl ether of hydroxycoumarins to the action of mild 0·1 N KOH. This reagent brings about aldol condensation followed by cyclisation and dehydration in the presence of acids as proposed by Macleod and Worth to give the desired linear diphenyl furanocoumarins in good yield.

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References

  1. Kanakalingeswara Rao, M. and Rajagopal, S.,Proc. Indian Acad. Sci. A 81 38 (1975).

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  2. Macleod, J. K. and Worth, B. R.,Tetrahedron Lett. 3 237 (1972).

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Authors and Affiliations

  1. Department of Chemistry, Regional Engineering College, 506004, Warangal

    M. Kanakalingeswara Rao, K. Krishna Pillai & S. Rajagopal

Authors
  1. M. Kanakalingeswara Rao
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  2. K. Krishna Pillai
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  3. S. Rajagopal
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Additional information

This paper is Part XXIV of a series entitled “Furano Compounds”.

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Rao, M.K., Pillai, K.K. & Rajagopal, S. Synthesis of linear diphenyl furanocoumarins. Proc. Indian Acad. Sci. 84, 210–213 (1976). https://doi.org/10.1007/BF03046839

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  • DOI: https://doi.org/10.1007/BF03046839

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