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  • Title: Intramolecular reductive ketone-alkynoate coupling reaction promoted by (η2-propene)titanium.
    Author: Schäfer C, Miesch M, Miesch L.
    Journal: Org Biomol Chem; 2012 Apr 28; 10(16):3253-7. PubMed ID: 22407236.
    Abstract:
    Intramolecular reductive coupling of cycloalkanones tethered to alkynoates in the presence of (η(2)-propene)titanium was successfully performed to provide hydroxy-esters in a diastereoselective manner. Subsequent lactonization afforded angularly fused unsaturated tricyclic lactones which represent relevant substructures of numerous bioactive compounds.
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