Herein, we report a Ni-catalyzed C(sp2)–H hydroxylation of aryl bromides with N2O as an oxygen-atom donor. The reaction is enabled by a 1,4-Ni translocation that results in ipso/ortho difunctionalized products. Regioselectivity and stereocontrol are dictated by a judicious choice of the ligand backbone, thus giving access to either carbonyl or phenol derivatives and offering an opportunity to repurpose hazardous substances en route to valuable oxygen-containing building blocks.
C(sp2)–H Hydroxylation via Catalytic 1,4-Ni Migration with N2O
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J. Am. Chem. Soc. 2023, DOI: 10.1021/jacs.3c07018.