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Extending the NHC Concept: C–C Coupling Catalysis by a Pd II Carbene ( r NHC) Complex with Remote Heteroatoms
Author(s) -
Schneider Sabine K.,
Roembke Patric,
Julius Gerrit R.,
Loschen Christoph,
Raubenheimer Helgard G.,
Frenking Gernot,
Herrmann Wolfgang A.
Publication year - 2005
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.200500307
Subject(s) - carbene , chemistry , heteroatom , ligand (biochemistry) , catalysis , palladium , coupling (piping) , stereochemistry , metal , medicinal chemistry , organic chemistry , ring (chemistry) , mechanical engineering , biochemistry , receptor , engineering
A palladium complex, trans ‐Cl(PPh 3 ) 2 Pd{C a ‐ cyclo ‐C 6 H 4 ‐ o ‐N(Me)C=C b H}(C a —C b ), that contains a carbene ligand with remote heteroatoms ( r NHC) is much more active in certain C–C coupling reactions than comparably simple NHC‐ and phosphane‐containing precatalysts. The r NHC ligand binds strongly by electrostatic as well as orbital interaction to the metal. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)