An Abnormal N-Heterocyclic Carbene-Based Palladium Dimer: Aqueous Oxidative Heck Coupling Under Ambient Temperature

Herein we report the synthesis of a new abnormal N‐heterocyclic carbene (aNHC)‐based ligand and its use in synthesizing an acetate bridged CH activated palladium dimer (1). In complex 1, the carbene ligand displays an abnormal mode of binding with the palladium(II) ion. We used complex 1 as a catal...

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Bibliographic Details
Published in:Advanced synthesis & catalysis 2015-10, Vol.357 (14-15), p.3162-3170
Main Authors: Hota, Pradip Kumar, Vijaykumar, Gonela, Pariyar, Anand, Sau, Samaresh Chandra, Sen, Tamal K., Mandal, Swadhin K.
Format: Article
Language:English
Subjects:
abnormal carbenes
Ambient temperature
Carbenes
Dimers
Displays
Ligands
Olefins
oxidative Heck coupling
Palladium
palladium(II) complexes
Synthesis
β-arylated products
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Summary:Herein we report the synthesis of a new abnormal N‐heterocyclic carbene (aNHC)‐based ligand and its use in synthesizing an acetate bridged CH activated palladium dimer (1). In complex 1, the carbene ligand displays an abnormal mode of binding with the palladium(II) ion. We used complex 1 as a catalyst for the oxidative Heck coupling reaction of arylboronic acids with electron‐deficient as well as electron‐rich olefins at ambient temperature in water to produce selectively the β‐arylated products in good to excellent yields.
ISSN:1615-4150
1615-4169
DOI:10.1002/adsc.201500220