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  • An air-stable, well-defined palladium–BIAN–NHC chloro dimer: a fast-activating, highly efficient catalyst for cross-coupling
Title: An air-stable, well-defined palladium–BIAN–NHC chloro dimer: a fast-activating, highly efficient catalyst for cross-coupling
We report the synthesis, characterization and reactivity of an air-stable, well-defined acenaphthoimidazolylidene palladium–BIAN–NHC chloro dimer complex, [Pd(BIAN–IPr)(μ-Cl)Cl] 2 . This rapidly activating catalyst merges the reactive properties of palladium chloro dimers, [Pd(NHC)(μ-Cl)Cl] 2 , with the attractive structural features of the BIAN framework. [Pd(BIAN–IPr)(μ-Cl)Cl] 2 is the most reactive Pd( ii )–NHC precatalyst discovered to date undergoing fast activation under both an inert atmosphere and aerobic conditions. The catalyst features bulky-yet-flexible sterics that render the C–H substituents closer to the metal center in combination with rapid dissociation to monomers and strong σ-donor properties. [Pd(BIAN–IPr)(μ-Cl)Cl] 2 should be considered as a catalyst for reactions using well-defined Pd( ii )–NHCs.  more » « less
Award ID(s):
1650766
PAR ID:
10412428
Author(s) / Creator(s):
; ; ; ; ; ; ; ; ;
Date Published:
Journal Name:
Chemical Communications
Volume:
58
Issue:
53
ISSN:
1359-7345
Page Range / eLocation ID:
7404 to 7407
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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