Hydrazone as the directing group for Ir-catalyzed arene diborylations and sequential functionalizations |
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| Authors: | Ros Abel López-Rodríguez Rocío Estepa Beatriz Álvarez Eleuterio Fernández Rosario Lassaletta José M |
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| Affiliation: | Instituto Investigaciones Químicas (CSIC-US), C/Américo Vespucio 49, 41092 Sevilla, Spain. |
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| Abstract: | The use of hemilabile pyridine-hydrazone N,N-ligands allows the highly selective Ir-catalyzed ortho,ortho'-directed diborylation of aromatic N,N-dimethylhydrazones in near-quantitative yields. One-pot sequential Suzuki-Miyaura cross-coupling with different aryl bromides provides a short entry to unsymmetrically substituted 2,6-diarylbenzaldehyde derivatives. |
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