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Synthesis, Reactivity, Crystal Structures and Catalytic Activity of New Chelating Bisimidazolium‐Carbene Complexes of Rh
Author(s) -
Poyatos Macarena,
MasMarzá Elena,
Mata José A.,
Sanaú Mercedes,
Peris Eduardo
Publication year - 2003
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200390157
Subject(s) - chemistry , hydrosilylation , carbene , pincer movement , chelation , catalysis , reactivity (psychology) , crystal structure , medicinal chemistry , polymer chemistry , organic chemistry , combinatorial chemistry , medicine , alternative medicine , pathology
Abstract A series of new bridging, chelating and pincer N ‐heterocyclic carbenes of Rh I and Rh III have been obtained under mild conditions. The compounds have been fully characterised and their crystal structures determined. The chelate‐pincer coordination of the ligands means that the stability of these compounds is significantly greater than other carbene complexes of Rh. The compounds have been tested in catalytic reactions such as hydrogen transfer from alcohols to ketones, and hydrosilylation of terminal olefins and alkynes; they show a high activity for both processes. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)