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Naphthol compounds bearing a pendant α,β-unsaturated ester undergo a copper(I)-catalyzed asymmetric conjugate addition/copper(II)-mediated intramolecular oxidative coupling to afford benzofused spirocyclic cyclohexenones (see scheme). This one-pot strategy results in two new carbon–carbon bonds and three contiguous stereocenters. The products contain a high degree of functionality and molecular complexity. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.
Rudolph et al. (Thu,) studied this question.