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Chemical investigation of Indian lichens

Part II. Synthetic uses of some lichen acids

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Proceedings of the Indian Academy of Sciences - Section A Aims and scope Submit manuscript

Summary

The lichen acids, atranorin and lecanoric acid obtained fromParmelia essinica have been made the starting points for the preparation of 5-hydroxy-coumarin derivatives. 5-Hydroxy-7-methyl-coumarin has been synthesised for the first time from ethyl hæmatommate and has been shown to be different from the compound prepared by Pechmann by the action of malic acid on orcinol. The above coumarin can also be readily obtained from ethyl orsellinate and lecanoric acid. Some of its derivatives along with those of 5-hydroxy-4: 7-dimethyl-coumarin have been obtained and characterised. An improved method for the synthesis of ethyl hæmatommate is described.

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Authors and Affiliations

  1. Department of Chemistry, Andhra University, Waltair

    V. V. Kumara Sastry & T. R. Seshadri

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  1. V. V. Kumara Sastry
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  2. T. R. Seshadri
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Kumara Sastry, V.V., Seshadri, T.R. Chemical investigation of Indian lichens. Proc. Indian Acad. Sci. (Math. Sci.) 12, 498 (1940). https://doi.org/10.1007/BF03170713

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  • DOI: https://doi.org/10.1007/BF03170713

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