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A rhodium-catalyzed redox-neutral reaction of arylhydrazines with sulfoxonium ylides to construct 2-arylindole derivatives in one pot has been developed. The transformation proceeds efficiently under mild conditions and involves tandem C-H activation and an intramolecular dehydration annulation sequence, providing a straightforward pathway to access pharmaceutically and biologically valuable 1-aminoindole derivatives.
Lv et al. (Thu,) studied this question.