Hierarchical nanospheres based on Pd nanoparticles dispersed on carbon coated magnetite cores with a mesoporous ceria shell: a highly integrated multifunctional catalyst

2015 ◽  
Vol 44 (37) ◽  
pp. 16592-16601 ◽  
Author(s):  
Yinle Li ◽  
Zhuqing Zhang ◽  
Jianfeng Shen ◽  
Mingxin Ye
Keyword(s):  
Coupling Reaction ◽  
Cross Coupling ◽  
Pd Nanoparticles ◽  
Catalytic Performance ◽  
The Novel ◽  
Cross Coupling Reaction ◽  
Carbon Coated ◽  
Multifunctional Catalyst ◽  
Excellent Catalytic Performance

The novel multifunctional Fe3O4@C–Pd@CeO2 nanospheres show excellent catalytic performance in the Suzuki–Miyaura cross-coupling reaction and the reduction of 4-nitrophenol.

scholarly journals Pd(CH3CN)2Cl2/Pipecolinic Acid as a Highly Efficient Catalytic System for Suzuki-Miyaura Cross-coupling Reaction of Bromoaryl Carboxylic Acids in Water

Catalysts ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 86 ◽  
Author(s):  
Xiaogang Li ◽  
Wenbin Zhang ◽  
Leiqing Fu ◽  
Mengping Guo
Keyword(s):  
Catalytic System ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Catalytic Performance ◽  
High Turnover ◽  
Mild Conditions ◽  
Highly Efficient ◽  
Cross Coupling Reaction ◽  
Pipecolinic Acid ◽  
Excellent Catalytic Performance

In this study, a convenient and highly efficient catalytic system for the Suzuki-Miyaura coupling reaction was investigated under mild conditions. A combination of Pd(CH3CN)2Cl2 and pipecolinic acid showed excellent catalytic performance and afforded high turnover numbers; turnover numbers were up to 4.9 × 105 for the coupling reaction of 4-bromobenzoic acid and tetraphenylboron sodium. The catalytic system was also effective for the indexes of 4-bromobenzoic acid, and high turnover numbers were obtained.

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.

Phosphine-stabilized Pd nanoparticles supported on silica as a highly active catalyst for the Suzuki–Miyaura cross-coupling reaction

RSC Advances ◽  
2015 ◽  
Vol 5 (5) ◽  
pp. 3512-3520 ◽  
Author(s):  
Debojeet Sahu ◽  
Pankaj Das
Keyword(s):  
Active Catalyst ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Pd Nanoparticles ◽  
Highly Dispersed Silica ◽  
Simple Strategy ◽  
Highly Active ◽  
Cross Coupling Reaction ◽  
Highly Dispersed ◽  
Supported Pd

Highly dispersed silica-supported Pd nanoparticles were synthesizedviaa simple strategy. The material showed excellent catalytic activity for Suzuki–Miyaura reactions and could be reused several times.

Effects of medium and nickel salt source in the synthesis and catalytic performance of nano-sized nickel in the Suzuki-Miyaura cross-coupling reaction

2019 ◽  
Vol 126 (2) ◽  
pp. 841-855
Author(s):  
Adél Anna Ádám ◽  
Márton Szabados ◽  
Katalin Musza ◽  
Péter Bélteky ◽  
Zoltán Kónya ◽  
...  
Keyword(s):  
Coupling Reaction ◽  
Cross Coupling ◽  
Catalytic Performance ◽  
Nickel Salt ◽  
Cross Coupling Reaction

scholarly journals Poly(o-aminothiophenol)-stabilized Pd nanoparticles as efficient heterogenous catalysts for Suzuki cross-coupling reactions

RSC Advances ◽  
2017 ◽  
Vol 7 (74) ◽  
pp. 47104-47110 ◽  
Author(s):  
Yuan Chen ◽  
Minggui Wang ◽  
Long Zhang ◽  
Yan Liu ◽  
Jie Han
Keyword(s):  
Cross Coupling ◽  
Pd Nanoparticles ◽  
Catalytic Performance ◽  
Coupling Reactions ◽  
Cross Coupling Reactions ◽  
One Step ◽  
Excellent Catalytic Performance

Poly(o-aminothiophenol)-stabilized Pd nanoparticles have been obtained through a facile one-step route, which exhibit excellent catalytic performance in Suzuki cross-coupling reactions.

scholarly journals SCREENING OF THE CATALYTIC ACTIVITY OF Pd0 AND Pd2+- SUPPORTED ON CHITOSAN BEADS AND CRYOGELS

2018 ◽  
Vol XXIII ◽  
pp. 149-158
Author(s):  
Aleksandr Pestov ◽  
Aleksandr Mekhaev ◽  
Yuliya Privar ◽  
Natalya Prokuda ◽  
Evgeniy Modin ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Pd Nanoparticles ◽  
High Catalytic Activity ◽  
Mesomeric Effect ◽  
Catalytic Systems ◽  
Chitosan Beads ◽  
Cross Coupling Reaction ◽  
Significant Difference

Here, we report the results of screening of the catalytic activity of Pd-containing chitosan beads and cryogels in the cross-coupling reaction, hydrogenation of alkenes, nitro-, and carbonyl compounds and the hydrodechlorination of chlorophenols. Pd0-containing chitosan beads and cryogels show moderate catalytic activity in the reduction of alkenes and nitroaromatics. The conversion of nitroaromatics decreases for substrates with electron-withdrawing substituents, while the conversion of alkenes increases with the activation of carbon-carbon double bonds. For several substrates, a significant difference in kinetics and conversion degrees was observed for Pd nanoparticles supported on chitosan beads and cryogels. It was found that conversion in the hydrodechlorination reaction depends on substrate structure, being higher for substrates containing substituents with a positive mesomeric effect. Pd2+-chitosan catalysts showed high catalytic activity in cross-coupling (Heck reaction) offering the following advantages over known catalytic systems: lower reaction temperature, the selective functionalisation of C-I bonds, and the possibility to perform reactions with iodobenzene without base addition.

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