Related Experiment Video
Updated: May 15, 2025
Palladium N-Heterocyclic Carbene Complexes: Synthesis from Benzimidazolium Salts and Catalytic Activity in Carbon-carbon Bond-forming Reactions
Published on: July 30, 2017
A Bench-Stable Fluorophosphine Nickel(0) Complex and Its Catalytic Application
Franziska Flecken1, Arjun Neyyathala1, Toni Grell2
1Department Karlsruhe Institute of Technology, Institute for Inorganic Chemistry, Engesserstr. 15, 76131, Karlsruhe, Germany.
Abstract:
We herein present a fluorophosphine-based nickel(0) complex [Ni(PFPh2)4] (1), which is highly stable in air and water. [Ni(PFPh2)4] can be obtained from a one-pot reaction of [Ni(MeCN)4](BF4)2 with Ph2P(═O)-PPh2, involving a unique in situ reduction of Ni(II) to Ni(0) and a simultaneous fluorination by the BF4 - anion. This complex does not only incorporate a nickel center in the zero-oxidation state, resulting from a Ni(II) precursor, but also includes fluorophosphine ligands, which typically disproportionate immediately in solution. The application of [Ni(PFPh2)4] as highly stable Ni(0) pre-catalyst in combination with additional phosphine ligands, such as dppf (1,1'-bis(diphenylphosphino)ferrocene), in various coupling reactions uncovers its high catalytic activity and versatility, which is superior to [Ni(COD)2] (COD═cycloocta-1,5-diene) as conventional Ni(0) source.
More Related Videos
10:51The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes
Published on: April 10, 2015
![Mizoroki-Heck Cross-coupling Reactions Catalyzed by Dichloro{bis[1,1',1''-phosphinetriyltripiperidine]}palladium Under Mild Reaction Conditions](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F51444.jpg&w=3840&q=50)
11:44Mizoroki-Heck Cross-coupling Reactions Catalyzed by Dichloro{bis[1,1',1''-phosphinetriyltripiperidine]}palladium Under Mild Reaction Conditions
Published on: March 20, 2014
Related Concept Videos
02:50Catalysis
02:17Reduction of Alkenes: Asymmetric Catalytic Hydrogenation
The metal catalyst used can be either heterogeneous or homogeneous. When hydrogenation of an alkene generates a chiral center, a pair of enantiomeric products is expected to form. However, an enantiomeric excess of one of the products can be facilitated using an enantioselective reaction or an...
02:24Reduction of Alkynes to cis-Alkenes: Catalytic Hydrogenation
Like alkenes, alkynes can be reduced to alkanes in the presence of transition metal catalysts such as Pt, Pd, or Ni. The reaction involves two sequential syn additions of hydrogen via a cis-alkene intermediate.