Abstract
Rhodium(iii)-catalyzed mild and oxidative [4+1] spiroannulation has been realized via C-H activation of oximes and benzoic acids with 1-diazonaphthelen-2(1H)-ones as coupling reagents. This transformation integrates C-H activation and dearomatization and provides a direct approach to spirocyclic isoindole N-oxides and isobenzofuranones with functional group tolerance.
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