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[摘要]：A series of CuI-immobilized polymeric supports having quaternary ammonium salts were prepd. as recyclable heterogeneous catalysts with evaluation of their ability in Cu(I)-catalyzed Huisgen's 1,3-dipolar cycloaddn. of azides and terminal alkynes, a 'click reaction'. An ionic polymer possessing an acetate anion was suitable as the solid support for immobilization of CuI, and the CuI-immobilized compd. showed negligible leaching levels of CuI, providing 1,4-disubstituted 1,2,3-triazoles in good yields, regioselectively. The CuI-immobilized compd. was also reused not only up to ten times without any loss of yield or catalytic activity, but also for twelve different click reactions. |
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