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À propos de : Tandem Au-Catalyzed 3,3-Rearrangement−[2 + 2] Cycloadditions ofPropargylic Esters: Expeditious Access to Highly Functionalized2,3-Indoline-Fused Cyclobutanes        

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  • Tandem Au-Catalyzed 3,3-Rearrangement−[2 + 2] Cycloadditions ofPropargylic Esters: Expeditious Access to Highly Functionalized2,3-Indoline-Fused Cyclobutanes
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  • The treatment of readily available propargylic indole-3-acetates with a catalytic amount of AuCl(PPh3)/AgSbF6 leads to tandem activations of the propargylic esters and the in situ generated allenylic esters, resulting in expeditious access to highly functionalized cyclobutanes with fused 2,3-indoline and γ-lactone rings and an exocyclic E-double bond through sequential 3,3-rearrangement and [2 + 2] cyclization.
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