Highly Enantioselective [3+2] Annulation of Morita–Baylis–Hillman Adducts Mediated by L‐Threonine‐Derived Phosphines: Synthesis of 3‐Spirocyclopentene‐2‐oxindoles having Two Contiguous Quaternary Centers
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![Highly Enantioselective [3+2] Annulation of Morita–Baylis–Hillman Adducts Mediated by <scp>L</scp>‐Threonine‐Derived Phosphines: Synthesis of 3‐Spirocyclopentene‐2‐oxindoles having Two Contiguous Quaternary Centers](https://img.exaly.com/article-chart/51518435/citations/graph.svg)
