Journal
INORGANICA CHIMICA ACTA
Volume 431, Issue -, Pages 3-20Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.ica.2014.10.035
Keywords
Dendrimers; 3d elements; 4d elements; Ligands; Homogeneous catalysis
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Funding
- CNRS
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Dendrimer are hyperbranched macromolecules, which can be used as support of catalytic entities. This review focusses on polyphosphorhydrazone (PPH) dendrimers, bearing as terminal groups, transition metal complexes of 3d elements (Cu, Sc) and 4d elements (Pd, Ru, Rh). These complexes have been used as catalysts for various organic reactions, in particular C-C couplings. Most of these dendritic complexes can be recovered and re-used several times (up to 12 successive runs with the same efficiency). In several cases, a dendritic (or dendrimer) effect is observed, i.e., an increased efficiency and/or enantioselectivity when comparing a monomeric catalyst with increasing generations of the dendrimers, using in all cases the same number of catalytic entities. (C) 2014 Elsevier B.V. All rights reserved.
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