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Synthesis 1997; 1997(12): 1420-1424
DOI: 10.1055/s-1997-1362
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Synthesis of Novel 3-Allylbenzofurans via a Wittig Olefination and Claisen Rearrangement Sequence

M. G. Kulkarni* , Ravindra M. Rasne
  • *Department of Chemistry, University of Pune, Pune 411007, India, Fax +91(212)351728; E-mail: mgkul@chem.unipune.ernet.in
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Publication Date:
31 December 2000 (online)

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A short and novel synthesis of hitherto unknown 3-allylbenzofurans is described. Wittig olefination of protected 2-hydroxybenzaldehydes followed by Claisen rearrangement resulted in the formation of pent-4-en-als. These, on deprotection and dehydration, gave 3-allylbenzofurans.

benzofuran - Wittig olefination - Claisen rearrangement - allyl vinyl ether

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