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A new synthesis of thiophenes and thiapyrans

Part III. Hydroxythionaphthenes and A’lkoxythionaphthenes

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Summary

5-Methoxythionaphthene (II) and the hitherto unknown 6-methoxy-(IV), 7-methoxy- (VI) and 5-ethoxy-thionaphthenes (VIII) have been prepared by the new synthesis. 6-Methoxy-5-methylthionaphthene (X) was also prepared similarly and gave 6-methoxy-5-methylthionaphthene-1-dioxide (XI) on oxidation. Demethylation of (VI) and (X) gave 7-hydroxythionaphthene (XIII) and 6-hydroxy-5-methylthionaphthene (XIV).

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Authors and Affiliations

  1. Department of Chemical Technology, University of Bombay, India

    A. V. Sunthankar & B. D. Tilak

Authors
  1. A. V. Sunthankar
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  2. B. D. Tilak
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Additional information

Communicated by Dr. K. Venkataraman,f.a.sc.

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Sunthankar, A.V., Tilak, B.D. A new synthesis of thiophenes and thiapyrans. Proc. Indian Acad. Sci. (Math. Sci.) 33, 35–41 (1951). https://doi.org/10.1007/BF03172256

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  • DOI: https://doi.org/10.1007/BF03172256

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