Synthesis of Nickel (I)–Bromide Complexes via Oxidation and Ligand Displacement: Evaluation of Ligand Effects on Speciation and Reactivity

SH Newman-Stonebraker, TJ Raab… - Journal of the …, 2023 - ACS Publications
Nickel's+ 1 oxidation state has received much interest due to its varied and often enigmatic
behavior in increasingly popular catalytic methods. In part, the lack of understanding about …

Mechanisms of Photoredox Catalysis Featuring Nickel–Bipyridine Complexes

DA Cagan, D Bím, NP Kazmierczak, RG Hadt - ACS catalysis, 2024 - ACS Publications
Metallaphotoredox catalysis can unlock useful pathways for transforming organic reactants
into desirable products, largely due to the conversion of photon energy into chemical …

Reconceptualizing the IrIII Role in Metallaphotoredox Catalysis: From Strong Photooxidant to Potent Energy Donor

S DiLuzio, L Kannadi Valloli, M Kudisch… - ACS …, 2024 - ACS Publications
Dual IrIII/LnNiII metallaphotoredox catalyzed C (sp3)–C (sp2) cross-coupling reactions are
widely assumed to proceed by photoinduced single electron transfer steps due to the highly …

Ultrafast Photophysics of Ni (I)–Bipyridine Halide Complexes: Spanning the Marcus Normal and Inverted Regimes

E Sutcliffe, DA Cagan, RG Hadt - Journal of the American …, 2024 - ACS Publications
Owing to their light-harvesting properties, nickel–bipyridine (bpy) complexes have found
wide use in metallaphotoredox cross-coupling reactions. Key to these transformations are Ni …

Light Activation and Photophysics of a Structurally Constrained Nickel (II)–Bipyridine Aryl Halide Complex

D Bím, KM Luedecke, DA Cagan, RG Hadt - Inorganic chemistry, 2024 - ACS Publications
Transition-metal photoredox catalysis has transformed organic synthesis by harnessing light
to construct complex molecules. Nickel (II)–bipyridine (bpy) aryl halide complexes are a …

Mechanism of Ni-Catalyzed Photochemical Halogen Atom-Mediated C(sp3)–H Arylation

AQ Cusumano, BC Chaffin… - Journal of the American …, 2024 - ACS Publications
Within the context of Ni photoredox catalysis, halogen atom photoelimination from Ni has
emerged as a fruitful strategy for enabling hydrogen atom transfer (HAT)-mediated C (sp3) …

Electronic Structures of Nickel(II)-Bis(indanyloxazoline)-dihalide Catalysts: Understanding Ligand Field Contributions That Promote C(sp2)–C(sp3) Cross-Coupling

BJ McNicholas, ZJ Tong, D Bím, RF Turro… - Inorganic …, 2023 - ACS Publications
Ni II (IB) dihalide [IB=(3a R, 3a′ R, 8a S, 8a′ S)-2, 2′-(cyclopropane-1, 1-diyl) bis (3a, 8a-
dihydro-8 H-indeno [1, 2-d]-oxazole)] complexes are representative of a growing class of first …

Mechanistic Interrogation of Photochemical Nickel-Catalyzed Tetrahydrofuran Arylation Leveraging Enantioinduction Data

BD McManus, LC Hung, OR Taylor… - Journal of the …, 2024 - ACS Publications
This manuscript details the development of an asymmetric variant for the Ni-photoredox α-
arylation of tetrahydrofuran (THF), which was originally reported in a racemic fashion by …

Nickel-Catalyzed Enantioselective Reductive Arylation of Common Ketones

S Huang, JS Zhou - Journal of the American Chemical Society, 2024 - ACS Publications
A nickel complex of chiral bisoxazolines catalyzed the stereoselective reductive arylation of
ketones in high enantioselectivity. A range of common acyclic and cyclic ketones reacted …

Nickel‐Catalyzed Sonogashira Couplings: Extending the Reaction Scope to Aryl Bromides and Chlorides

E Braconi, E Godineau, T Smejkal… - Advanced Synthesis & …, 2024 - Wiley Online Library
The alkyne motif is present in several naturally occurring molecules and specialty chemicals.
The Sonogashira reaction is recognized as one of the most exploited methods for the …