期刊
ADVANCED SYNTHESIS & CATALYSIS
卷 349, 期 13, 页码 2079-2084出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adsc.200700112
关键词
asymmetric catalysis; click chemistry; copper(I); immobilization; lanthanides; pybox
A pyridine-bis(oxazoline) ligand was efficiently immobilized by copper(I)-catalyzed azidealkyne cycloaddition onto a polystyrene resin. The so obtained click-pybox resin 1a was associated with various metal salts (YbCl3, LuCl3, CuOTf) and the resulting resin-bound catalysts were explored in ring-opening of cyclohexene oxide, silylcyanation of benzaldehyde and alkynylation of imines. These new polymer-supported catalysts exhibit good to excellent performances in terms of catalytic activity, enantioselectivity and recyclability.
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