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  • Title: Heterogeneous copper catalyst for the cycloaddition of azides and alkynes without additives under ambient conditions.
    Author: Park IS, Kwon MS, Kim Y, Lee JS, Park J.
    Journal: Org Lett; 2008 Feb 07; 10(3):497-500. PubMed ID: 18181635.
    Abstract:
    A new copper catalyst was developed by immobilizing copper nanoparticles in aluminum oxyhydoxide fiber. The catalyst showed high catalytic activity for the (3+2) Huisgen cycloaddition of nonactivated alkynes as well as activated ones with various azides at room temperature. The catalyst was recycled five times without significant loss of activity.
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