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  • Title: o-Dihaloarenes as aryne precursors for nickel-catalyzed [2 + 2 + 2] cycloaddition with alkynes and nitriles.
    Author: Hsieh JC, Cheng CH.
    Journal: Chem Commun (Camb); 2008 Jul 14; (26):2992-4. PubMed ID: 18688325.
    Abstract:
    o-Dihaloarenes acting as aryne precursors react with acetylenes and nitriles catalyzed by the NiBr(2)(dppe)/dppe/Zn system to give substituted naphthalene, phenanthridine or triphenylene derivatives depending on the reaction conditions in moderate to excellent yields with good tolerance of functional groups.
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