4.4 Article

Trifluoromethanesulfonic acid catalyzed novel Friedel-Crafts acylation of aromatics with methyl benzoate

Journal

TETRAHEDRON
Volume 56, Issue 37, Pages 7199-7203

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0040-4020(00)00633-5

Keywords

methyl benzoate; benzoylation; trifluoromerhanesulfonic acid; benzo-phenones; superelectrophilic activation

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Methyl benzoate, protolytically activated by superacidic trifluoromethanesulfonic acid, reacts with aromatic compounds to give benzophenone derivatives in good to excellent yields (70-93%). Even highly deactivated nitrobenzene as well as benzotrifluoride underwent smooth benzoylation under the reaction conditions to respective meta-substituted benzophenones. (C) 2000 Elsevier Science Ltd. All rights reserved.

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