Abstract
An efficient, mild, and transition-metal free formal C(sp2)-H arylation of prochiral 2,2-disubstituted cyclopentene-1,3-diones is reported. This oxidative arylation with β-naphthols proceeds via base-mediated C-Michael addition followed by aerial oxygen insertion and a subsequent α-hydroperoxy elimination sequence. This operationally simple and environmentally benign transformation is highly scalable and does not require any pre-functionalization. Moreover, this reaction affords excellent yields of α-substituted β-naphthols bearing all-carbon quaternary centers.
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