期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 14, 期 22, 页码 6713-6721出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.200800479
关键词
click chemistry; copper cycloaddition; heterogeneous catalysis; zeolites
For the first time, copper(l)exchanged zeolites were developed as catalysts in organic synthesis. These solid materials proved to be versatile and efficient heterogeneous, ligand-free catalytic systems for the Huisgen [3+2] cycloaddition. These cheap and easy-to-prepare catalysts exhibited a wide scope and compatibility with functional groups. They are very simple to use, easy to remove (by filtration), and are recyclable (up to three times without loss of activity). Investigations with deuterated alkynes and deuterated zeolites proved that this Cu-I-zeolite-catalyzed click reaction exhibited a mechanism different from that reported for the Meldal-Sharpless version.
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