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  • Title: Gold(I)-catalyzed macrocyclization of 1,n-enynes.
    Author: Obradors C, Leboeuf D, Aydin J, Echavarren AM.
    Journal: Org Lett; 2013 Apr 05; 15(7):1576-9. PubMed ID: 23485064.
    Abstract:
    The gold(I)-catalyzed [2 + 2] cycloaddition of large 1,n-enynes (n = 10-16) provides access to 9- to 15-membered ring macrocycles incorporating a cyclobutene moiety. The reaction requires the use of a gold(I) catalyst bearing a sterically hindered biphenylphosphine ligand.
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