Combined directed ortho-metalation, remote metalation, and Stille cross-coupling strategies. Concise stereoselective synthesis of polysubstituted 9H-fluoren-9-ones |
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Authors: | Anne-Sophie Castanet,Jean-Baptiste Vé ron,Asish De,Jacques Mortier |
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Affiliation: | a Université du Maine and CNRS, Unité de Chimie Organique Moléculaire and Macromoléculaire (UMR 6011), Faculté des Sciences, Avenue Olivier Messiaen, 72085 Le Mans Cedex 9, France b Indian Association for the Cultivation of Science, 700 032 Jadavpur, Kolkata, India |
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Abstract: | The new sequential stereoselective synthesis of diversely substituted 9H-fluoren-9-ones by ortho-lithiation/Bu3SnCl quench of unprotected benzoic acids followed by Stille cross-coupling reaction and remote metalation is reported. |
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Keywords: | ortho and Remote metalations Stille reaction Benzoic acids |
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