Understanding the Activation of Air-Stable Ir(COD)(Phen)Cl Precatalyst for C-H Borylation of Aromatics and Heteroaromatics
Eric D. Slack* and Thomas J. Colacot*
*Johnson Matthey, 2001 Nolte Drive, West Deptford, New Jersey 08066, United States, Email: eric.slackjmusa.com, thomas.colacotmilliporesigma.com
E. D. Slack, T. J. Colacot, Org. Lett., 2021, 23, 1561-1565.
DOI: 10.1021/acs.orglett.0c04210 (free Supporting Information)
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The robust catalyst [Ir(COD)(Phen)Cl] was used for C-H borylation of aromatics and heteroaromatics with excellent yield and selectivity. Activation of the catalyst with catalytic amounts of water, alcohols, etc. was required, when B2pin2 was used in noncoordinating solvents, while for THF catalytic use of HBpin was required.
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