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Protecting-group-free ortho-C–H borylation of anilines enabled by mesoionic carbene-Ir complex
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作者 Zengyu Zhang Shiqing huang +3 位作者 Wei Liu Liang-Liang Zhao chubin hu Xiaoyu Yan 《Green Synthesis and Catalysis》 2023年第4期300-305,共6页
We describe an iridium-catalyzed ortho-selective C–H borylation of unprotected anilines.The employing strongσ-donating cyclometalated mesoionic carbene as C^C bidentate ligand is crucial for the high ortho-selectivi... We describe an iridium-catalyzed ortho-selective C–H borylation of unprotected anilines.The employing strongσ-donating cyclometalated mesoionic carbene as C^C bidentate ligand is crucial for the high ortho-selectivity.Computational studies support outer-sphere X–H⋅⋅⋅O_(boryl) hydrogen bond interactions,which are strengthened by bidentate C^C ligand introduction.The method shows broad substrate scope and high functional group tolerance. 展开更多
关键词 Protecting-group-free C-H borylation Hydrogen bonding Regioselectivity Mesoionic carbene
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