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“Pincer” Pyridine–Dicarbene–Iridium Complexes: Facile CH Activation and Unexpected η 2 ‐Imidazol‐2‐ylidene Coordination
Author(s) -
Danopoulos Andreas A.,
Pugh David,
Wright Joseph A.
Publication year - 2008
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200804573
Subject(s) - iridium , pincer movement , metalation , pyridine , chemistry , carbene , medicinal chemistry , stereochemistry , ring (chemistry) , alkene , catalysis , organic chemistry
A bridge to somewhere : A series of pyridine dicarbene iridium “pincer” complexes is easily accessible when pyridine ring metalation is suppressed by methyl substitution (see structure; NHC=N‐heterocyclic carbene). A new bridging binding mode of the imidazol‐2‐ylidene heterocycle, involving η 2 ‐alkene‐like coordination, has been observed crystallographically.