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  • Title: Nickel-mediated stereocontrolled synthesis of spiroketals via tandem cyclization-coupling of β-bromo ketals and aryl iodides.
    Author: Peng Y, Xu XB, Xiao J, Wang YW.
    Journal: Chem Commun (Camb); 2014 Jan 14; 50(4):472-4. PubMed ID: 24256807.
    Abstract:
    A ketal-tether approach for the stereoselective synthesis of [5,5] and [5,6]-spiroketals based on reductive coupling catalyzed by the readily available Ni complex is demonstrated. Either an intermolecular or an intramolecular stereospecific cascade has been achieved as well.
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