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Studies on the Claisea Rearraagement in γγ-Dimethylaycoumarins

  • B. Chaudhury
  • S. K. Saha
  • (Mrs.) A. Chatterjee
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Publication date
November 1962
Icon DOI
10.5281/zenodo.6531538

Abstract

Claisen migration of \(\gamma\gamma\)-dimethyl ally] ethers of 5-hydroxy-, 6-hydroxy-, 7-hydroxy-, and 8-hydroxy­- enumarins has been studied. Those \(\gamma\gamma\)-dimethylailyloxycoumarins do not undergo any molecular rearrange­ment but suffer degradation to phenolic coumarins and isoprene under the experimental conditions at which Claisen rearrangement is performed. A plausible mechanism for this degradation and abnormal reaction has boon discussed

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