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Main Title: New catalysts with unsymmetrical N-heterocyclic carbene ligands
Author(s): Tornatzky, Johanna
Kannenberg, Axel
Blechert, Siegfried
Type: Article
Language Code: en
Abstract: The importance of unsymmetrical N-heterocyclic carbenes (uNHCs) as ligands in metal-catalyzed reactions is undeniable. While uNHCs show similar properties as compared with symmetrical NHCs, dissymmetrization allows for further fine-tuning. The introduction of chelatization, hemilability, bifunctionality, shielding effects, and chirality-transfer influences the catalyst’s stability, reactivity, and selectivity, thus offering access to tailor-made systems including mono- and multidentate uNHC ligands. Based on selected examples, the structure–reactivity relationship of uNHCs employed in metal catalysts is presented. The focus is on catalytically active complexes, which either offer access to new applications or lead to significantly improved results in metal-catalyzed reactions.
Issue Date: 2012
Date Available: 28-Jun-2016
DDC Class: 540 Chemie und zugeordnete Wissenschaften
Journal Title: Dalton transactions : a journal of inorganic chemistry, including bioinorganic, organometallic, and solid-state chemistry
Publisher: Royal Society of Chemistry
Publisher Place: Cambridge
Volume: 41
Issue: 27
Publisher DOI: 10.1039/c2dt30256j
Page Start: 8215
Page End: 8225
EISSN: 1477-9226
Notes: Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
This publication is with permission of the rights owner freely accessible due to an Alliance licence and a national licence (funded by the DFG, German Research Foundation) respectively.
Appears in Collections:Inst. Chemie » Publications

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