Tetrahedron p. 2867 - 2873 (1981)
Update date:2022-07-30
Topics:
Hercouet
Le Corre
The intramolecular condensation of o-acyloxybenzylidenetriphenylphosphoranes leads to acylated products in t-BuOH and to benzofurans in toluene. Mechanistic aspects are discussed. A general method is described for the synthesis of benzofurans from o-cresols, o-hydroxybenzylic alcohols, and deactivated phenols.
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