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Synthesis 1992; 1992(4): 375-376
DOI: 10.1055/s-1992-26115
short paper
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New Route to Styrylchromones via [1-(2-Hydroxybenzoyl)alkylidene]triphenylphosphoranes

F. Zammattio* , J. D. Brion, P. Ducrey, G. Le Baut
  • *Laboratoire de Chimie Thérapeutique, U.F.R. des Sciences Pharmaceutiques, 1 rue Gaston Veil, F-44035 Nantes Cédex, France
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Publication Date:
17 September 2002 (online)

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Several [1-(2-hydroxybenzoyl)alkylidene]triphenylphosphoranes have been obtained in good yields through acylation of the corresponding alkylidenetriphenylphosphoranes, prepared in situ, by the easily available methyl 2-hydroxybenzoates. These ylides proved to be good starting materials for the synthesis of the corresponding 2-styrylchromones (2-styryl-4H-1-benzopyran-4-ones).