Regioselectivity in the C-acylation of 2(3h)-benzoxazolones

Aichaoui, Hocine;Poupaert, Jacques;Lesieur, D.;Hénichart, Jean-Pierre
(1991) Tetrahedron — Vol. 47, n° 33, p. 6649-6654 (1991)

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Authors
  • Aichaoui, Hocine
    Author
  • Poupaert, JacquesUCLouvain
    Author
  • Lesieur, D.
    Author
  • Hénichart, Jean-Pierre
    Author
Abstract
Unequivocal synthetic routes towards 5- and 6-acyl-2(3H)-benzoxazolones are described. Comparison of the physicochemical properties of the compounds obtained by direct acylation under various Friedel-Crafts reaction conditions always leads to the conclusion that 6-acyl derivatives are the only isolated products. This observation contradicts previously published results.
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Aichaoui, H., Poupaert, J., Lesieur, D., & Hénichart, J.-P. (1991). Regioselectivity in the C-acylation of 2(3h)-benzoxazolones. Tetrahedron, 47(33), 6649-6654. https://doi.org/10.1016/S0040-4020(01)82317-6 (Original work published 1991)