scholarly journals Heterogeneous catalysis by ultra-small bimetallic nanoparticles surpassing homogeneous catalysis for carbon–carbon bond forming reactions

Nanoscale ◽  
2020 ◽  
Vol 12 (37) ◽  
pp. 19191-19202 ◽  
Author(s):  
Nazgol Norouzi ◽  
Mrinmoy K. Das ◽  
Alexander J. Richard ◽  
Amr A. Ibrahim ◽  
Hani M. El-Kaderi ◽  
...  
Keyword(s):  
Heterogeneous Catalysis ◽  
Homogeneous Catalysis ◽  
Bimetallic Catalysts ◽  
Fumed Silica ◽  
Bimetallic Nanoparticles ◽  
Cross Coupling ◽  
Coupling Reactions ◽  
Bond Forming ◽  
Cross Coupling Reactions ◽  
Carbon Carbon Bond

Heterogeneous Pd-based bimetallic catalysts supported on fumed silica with high activity and selectivity matching those of homogeneous catalysts have been developed for carbon–carbon cross-coupling reactions.

scholarly journals Iodination of carbohydrate-derived 1,2-oxazines to enantiopure 5-iodo-3,6-dihydro-2H-1,2-oxazines and subsequent palladium-catalyzed cross-coupling reactions

2016 ◽  
Vol 12 ◽  
pp. 2898-2905 ◽  
Author(s):  
Michal Medvecký ◽  
Igor Linder ◽  
Luise Schefzig ◽  
Hans-Ulrich Reissig ◽  
Reinhold Zimmer
Keyword(s):  
Click Reaction ◽  
Cross Coupling ◽  
Coupling Reactions ◽  
High Efficacy ◽  
Carbon Bond ◽  
Bond Forming ◽  
Cross Coupling Reactions ◽  
Carbon Carbon Bond ◽  
Palladium Catalyzed ◽  
Oxazine Derivatives

Iodination of carbohydrate-derived 3,6-dihydro-2H-1,2-oxazines of type 3 using iodine and pyridine in DMF furnished 5-iodo-substituted 1,2-oxazine derivatives 4 with high efficacy. The alkenyl iodide moiety of 1,2-oxazine derivatives syn-4 and anti-4 was subsequently exploited for the introduction of new functionalities at the C-5 position by applying palladium-catalyzed carbon–carbon bond-forming reactions such as Sonogashira, Heck, or Suzuki coupling reactions as well as a cyanation reaction. These cross-coupling reactions led to a series of 5-alkynyl-, 5-alkenyl-, 5-aryl- and 5-cyano-substituted 1,2-oxazine derivatives being of considerable interest for further synthetic elaborations. This was exemplarily demonstrated by the hydrogenation of syn-21 and anti-24 and by a click reaction of a 5-alkynyl-substituted precursor.

Cu(III)-Mediated Aerobic Oxidations

Synthesis ◽  
2018 ◽  
Vol 51 (02) ◽  
pp. 334-358 ◽  
Author(s):  
Jean-Philip Lumb ◽  
Kenneth Esguerra
Keyword(s):  
Cross Coupling ◽  
Coupling Reactions ◽  
Oxidation Reactions ◽  
General Introduction ◽  
Model Complexes ◽  
Bond Forming ◽  
Cross Coupling Reactions ◽  
Carbon Carbon Bond ◽  
Bond Forming Reactions ◽  
Type 3

CuIII species have been invoked in many copper-catalyzed transformations including cross-coupling reactions and oxidation reactions. In this review, we will discuss seminal discoveries that have advanced our understanding of the CuI/CuIII redox cycle in the context of C–C and C–heteroatom aerobic cross-coupling reactions, as well as C–H oxidation reactions mediated by CuIII–dioxygen adducts.1 General Introduction2 Early Examples of CuIII Complexes3 Aerobic CuIII-Mediated Carbon–Heteroatom Bond-Forming Reactions4 Aerobic CuIII-Mediated Carbon–Carbon Bond-Forming Reactions5 Bioinorganic Studies of CuIII Complexes from CuI and O2 5.1 O2 Activation5.2 Biomimetic CuIII Complexes from CuI and Dioxygen5.2.1 Type-3 Copper Enzymes and Dinuclear Cu Model Complexes5.2.2 Particulate Methane Monooxygenase and Di- and Trinuclear Cu Model Complexes5.2.3 Dopamine–β-Monooxygenase and Mononuclear Cu Model Complexes6 Conclusion

Transition-metal-catalyzed carbon-carbon bond forming reactions: regio- and chemoselective iron(0)-catalyzed diene to olefin cross-coupling reactions

1986 ◽  
Vol 5 (11) ◽  
pp. 2395-2398 ◽  
Author(s):  
James M. Takacs ◽  
Lawrence G. Anderson ◽  
G. V. Bindu. Madhavan ◽  
Mark W. Creswell ◽  
Franklin L. Seely ◽  
...  
Keyword(s):  
Transition Metal ◽  
Cross Coupling ◽  
Coupling Reactions ◽  
Carbon Bond ◽  
Bond Forming ◽  
Cross Coupling Reactions ◽  
Carbon Carbon Bond ◽  
Bond Forming Reactions ◽  
Transition Metal Catalyzed ◽  
Metal Catalyzed

NiFe2O4@SiO2@ZrO2/SO42−/Cu/Co nanoparticles: a novel, efficient, magnetically recyclable and bimetallic catalyst for Pd-free Suzuki, Heck and C–N cross-coupling reactions in aqueous media

2021 ◽  
Author(s):  
Seyyedeh Ameneh Alavi G. ◽  
Mohammad Ali Nasseri ◽  
Milad Kazemnejadi ◽  
Ali Allahresani ◽  
Mahdi HussainZadeh
Keyword(s):  
Bimetallic Nanoparticles ◽  
Bimetallic Catalyst ◽  
Aqueous Media ◽  
Cross Coupling ◽  
Coupling Reactions ◽  
The Novel ◽  
Cross Coupling Reactions ◽  
Co Nanoparticles

The novel heterogeneous bimetallic nanoparticles of Cu–Co were synthesized and successfully applied as a recyclable magnetically catalyst in Heck, Suzuki, and C–N cross-coupling via a quick, easy, efficacious and environmentally protocol.

scholarly journals Pd–Ni Bimetallic Nanoparticles Supported on Zro2 as an Efficient Catalyst for Suzuki–Miyaura Reactions

2018 ◽  
Vol 42 (8) ◽  
pp. 419-423
Author(s):  
Li-Jie Zhang ◽  
Xian Yao ◽  
Ying-xin Sun ◽  
Jia-wei Zhang ◽  
Chun Cai
Keyword(s):  
Reduction Method ◽  
Bimetallic Nanoparticles ◽  
Bimetallic Catalyst ◽  
Cross Coupling ◽  
Catalytic Performance ◽  
Coupling Reactions ◽  
Efficient Catalyst ◽  
Mild Conditions ◽  
Cross Coupling Reactions ◽  
Excellent Catalytic Performance

Pd–Ni bimetallic nanoparticles (BMNPs) supported on ZrO2 were prepared by an impregnation–reduction method. The BMNPs showed excellent catalytic performance in Suzuki carbon–carbon cross-coupling reactions and almost quantitative conversion of the substrates was obtained under mild conditions in the absence of ligand. The excellent catalytic performance of the bimetallic catalyst could be a result of the synergistic effect between the two metal components. The catalyst showed outstanding recyclability during the reaction process; no obvious decrease in catalytic performance was observed after five cycles.

scholarly journals Perfluorinated phosphine and hybrid P–O ligands for Pd catalysed C–C bond forming reactions in solution and on Teflon supports

RSC Advances ◽  
2019 ◽  
Vol 9 (50) ◽  
pp. 28936-28945
Author(s):  
Farzana Begum ◽  
Muhammad Ikram ◽  
Brendan Twamley ◽  
Robert J. Baker
Keyword(s):  
Cross Coupling ◽  
Phosphine Ligands ◽  
Coupling Reactions ◽  
Bond Forming ◽  
Cross Coupling Reactions ◽  
Bond Forming Reactions

Phosphine ligands containing a perfluorous ponytail can be sorbed onto Teflon tape and used as ligands for C–C cross coupling reactions with little leaching.

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