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We report herein a highly stereoselective method for the indium triflate‐catalyzed vinylogous substitution of the hydroxy group of diarylmethyl alcohols with 3‐alkenyl‐2‐silyloxyindoles, which affords broadly substituted α‐alkylidene‐δ‐diaryl‐2‐oxindole products with high efficiency and complete γ‐site and Z‐selectivity. The reaction displays very wide substrate scopes for both the reactants, benzhydryl...
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