Nickel Catalyzed Intermolecular Carbonyl Addition of Aryl Halide

2019 ◽  
Vol 2019 (45) ◽  
pp. 7483-7487 ◽  
Author(s):  
Seima Ishida ◽  
Hiroyuki Suzuki ◽  
Seiichiro Uchida ◽  
Eiji Yamaguchi ◽  
Akichika Itoh
Keyword(s):  
Aryl Halide ◽  
Carbonyl Addition

Arene Dearomatization via Radical Hydroarylation

2019 ◽  
Author(s):  
Autumn Flynn ◽  
Kelly McDaniel ◽  
Meredith Hughes ◽  
David Vogt ◽  
Nathan Jui
Keyword(s):  
Precious Metal ◽  
Room Temperature ◽  
Aryl Halide ◽  
Solvent System ◽  
Benzene Derivatives ◽  
Green Solvent ◽  
Photocatalytic System

A photocatalytic system for the dearomative hydroarylation of benzene derivatives has been developed. Using a combination of an organic photoredox catalyst and an amine reductant, this process operates through a reductive radical-polar crossover mechanism where aryl halide reduction triggers a regioselective cyclization event, giving rise to a range of complex spirocyclic cyclohexadienes. This light-driven protocol functions at room temperature in a green solvent system (aq. MeCN), without the need for precious metal-based catalysts or reagents, or the generation of stoichiometric metal byproducts.

scholarly journals Pd Nanoparticles Stabilized by Hypercrosslinked Polystyrene Catalyze Selective Triple C-C Bond Hydrogenation and Suzuki Cross-Coupling

2019 ◽  
Vol 2019 ◽  
pp. 1-7 ◽  
Author(s):  
Linda Zh. Nikoshvili ◽  
Nadezhda A. Nemygina ◽  
Tatiana E. Khudyakova ◽  
Irina Yu. Tiamina ◽  
Alexey V. Bykov ◽  
...  
Keyword(s):  
Phase Transfer ◽  
Aryl Halide ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Pd Nanoparticles ◽  
Hypercrosslinked Polystyrene ◽  
Reductive Activation ◽  
Pd Nanoparticle ◽  
Cross Coupling Reaction ◽  
Precursor Decomposition

This paper describes the synthesis of Pd-containing catalysts based on nonfunctionalized hypercrosslinked polystyrene via impregnation with Pd acetate. Developed Pd nanoparticulate catalyst allowed achieving conversion of aryl halide up to 90% in Suzuki cross-coupling reaction under mild conditions and at the absence of phase-transfer agents. During the selective hydrogenation of triple C-C bond of 2-methyl-3-butyn-2-ol, up to 96% selectivity with respect to corresponding olefinic alcohol was found at 95% conversion. The influences of the procedure of catalyst synthesis like precursor decomposition and reductive activation method on Pd nanoparticle formation are discussed.

ChemInform Abstract: Palladium-Catalyzed Cyanide Metathesis: Utilization of Benzyl Cyanide as an Operator-Benign Reagent for Aryl Halide Cyanations.

ChemInform ◽  
2012 ◽  
Vol 43 (49) ◽  
pp. no-no
Author(s):  
Qiaodong Wen ◽  
Jisong Jin ◽  
Binbin Hu ◽  
Ping Lu ◽  
Yanguang Wang
Keyword(s):  
Aryl Halide ◽  
Benzyl Cyanide ◽  
Palladium Catalyzed

scholarly journals Metal-catalyzed reductive coupling of olefin-derived nucleophiles: Reinventing carbonyl addition

Science ◽  
2016 ◽  
Vol 354 (6310) ◽  
pp. aah5133 ◽  
Author(s):  
Khoa D. Nguyen ◽  
Boyoung Y. Park ◽  
Tom Luong ◽  
Hiroki Sato ◽  
Victoria J. Garza ◽  
...  
Keyword(s):  
Reductive Coupling ◽  
Carbonyl Addition ◽  
Metal Catalyzed
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