A Bi(OTf)-catalyzed oxidative cross-coupling reaction of 3-hydroxycarbazoles with arenols was developed under mild conditions. Both substrates were used in a 1:1 molar ratio in the presence of a catalytic amount of Bi(OTf). The reaction was carried out under an oxygen atmosphere at 30 °C to afford -symmetric hydroxybiaryls in good yields (up to 94%) with high chemo- and regioselectivity.
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| http://dx.doi.org/10.1021/acs.orglett.3c02211 | DOI Listing |
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