Abstract

The first report of Lewis acid use in intramolecular Rauhut–Currier reactions is described. Titanium Lewis acids lead to rapid Rauhut–Currier reactions in the case of two classic substrates. More importantly, titanium and tin Lewis acids were the only successful reagent for a more complex substrate, thereby illustrating the potential for Lewis acid reagents to facilitate challenging intramolecular Rauhut–Currier reactions that fail with traditional reagents.

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