Competitive Gold/Nickel Transmetalation

29 October 2021, Version 1
This content is a preprint and has not undergone peer review at the time of posting.

Abstract

Transmetalation is a key method for the construction of element-element bonds. Here, we disclose the reactivity of [NiII(Ar)(I)(diphosphine)] compounds with arylgold(I) transmetalating agents, which is directly relevant to cross-coupling catalysis. Both aryl-for-iodide and unexpected aryl-for-aryl transmetalation are witnessed. Despite the strong driving force expected for Au-I bond formation, aryl scrambling can occur during transmetalation and may complicate the outcomes of attempted catalytic cross-coupling reactions.

Keywords

Cross-Coupling
Gold
Nickel
Boron
Ligand Design
Density Functional Theory
Aryl
Ambiphilic Ligand

Supplementary materials

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XYZ Coordinate Files
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