The regioselective iridium-catalysed C3-borylation of 1H-indazoles has been achieved. Subsequent Suzuki–Miyaura coupling of the boronate esters with aryl chlorides, bromides and iodides affords 3-aryl-1H-indazoles in good yields.
B. A. Egan and P. M. Burton, RSC Adv., 2014, 4, 27726 DOI: 10.1039/C4RA04235B
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