Aerobic Heterogeneous Palladium-Catalyzed Oxidative Allenic C−H Arylation: Benzoquinone as a Direct Redox Mediator between O
            <sub>2</sub>
            and Pd

Kong, Wei‐Jun; Reil, Michaela; Feng, Lei; Li, Man‐Bo; Bäckvall, Jan‐E.

doi:10.31635/ccschem.021.202100816

Cited by 6 publications

(1 citation statement)

References 64 publications

(63 reference statements)

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“…Pd‐catalyzed aerobic oxidative reactions using molecular oxygen as the terminal oxidant play a significant role in organic synthesis and many additives have been proposed. Among them, benzoquinone, [21] manganese, [22] iron [23] and copper [18] salts were monitored (Table 2 ). Accordingly with our previous findings, Cu(OAc) 2 showed the best activity in terms of final yields (Table 2 runs 9–12).…”

Section: Resultsmentioning

confidence: 99%

Direct Synthesis of 3‐Aryl Substituted Isocoumarins and Phthalides through Palladium Acetate Catalyzed C(sp²)−H Activation in Ionic Liquids

Aloia

Casiello

D’Accolti

et al. 2022

Chemistry A European J

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A novel Pd-catalysed oxidative coupling between benzoic acids and vinylarenes or acrylates to furnish isocoumarins and phthalides is reported. The reaction proceeds smoothly in molten tetrabutylammonium acetate via a selective CÀ H bond activation, with very low percentage of ligand-free palladium acetate as the catalyst, under atmospheric pressure of oxygen. Sub-stoichiometric amount of copper acetate is also required as a reoxidant for the palladium.

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Section: Resultsmentioning

confidence: 99%

Direct Synthesis of 3‐Aryl Substituted Isocoumarins and Phthalides through Palladium Acetate Catalyzed C(sp²)−H Activation in Ionic Liquids

Aloia

Casiello

D’Accolti

et al. 2022

Chemistry A European J

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Cadmium‐Doped and Pincer Ligand‐Modified Gold Nanocluster for Catalytic KA²Reaction

et al. 2022

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A gold nanocluster Au 17 Cd 2 (PNP) 2 (SR) 12 (PNP = 2,6-bis(diphenylphosphinomethyl)pyridine, SR = 4-MeOPhS) consisting of an icosahedral Au 13 kernel, two Au 2 CdS 6 staple motifs, and two PNP pincer ligands has been designed, synthesized and well characterized. This cadmium and PNP pincer ligand co-modified gold nanocluster showed high catalytic efficiency in the KA 2 reaction, featuring high TON, mild reaction conditions, broad substrate scope as well as catalyst recyclability. Comparison of the catalytic performance between Au 17 Cd 2 (PNP) 2 (SR) 12 and the structurally similar single cadmium (or PNP) modified gold nanoclusters demonstrates that the co-existence of the cadmium and PNP on the surface is crucial for the high catalytic activity of the gold nanocluster. This work would be enlightening for developing efficient catalysts for cascade reactions and discovering the catalytic potential of metal nanoclusters in organic transformations.

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Cadmium‐Doped and Pincer Ligand‐Modified Gold Nanocluster for Catalytic KA²Reaction

et al. 2022

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A gold nanocluster Au17Cd2(PNP)2(SR)12 (PNP=2,6‐bis(diphenylphosphinomethyl)pyridine, SR=4‐MeOPhS) consisting of an icosahedral Au13 kernel, two Au2CdS6 staple motifs, and two PNP pincer ligands has been designed, synthesized and well characterized. This cadmium and PNP pincer ligand co‐modified gold nanocluster showed high catalytic efficiency in the KA2 reaction, featuring high TON, mild reaction conditions, broad substrate scope as well as catalyst recyclability. Comparison of the catalytic performance between Au17Cd2(PNP)2(SR)12 and the structurally similar single cadmium (or PNP) modified gold nanoclusters demonstrates that the co‐existence of the cadmium and PNP on the surface is crucial for the high catalytic activity of the gold nanocluster. This work would be enlightening for developing efficient catalysts for cascade reactions and discovering the catalytic potential of metal nanoclusters in organic transformations.

show abstract

Aerobic Heterogeneous Palladium-Catalyzed Oxidative Allenic C−H Arylation: Benzoquinone as a Direct Redox Mediator between O ₂ and Pd

Cited by 6 publications

References 64 publications

Direct Synthesis of 3‐Aryl Substituted Isocoumarins and Phthalides through Palladium Acetate Catalyzed C(sp²)−H Activation in Ionic Liquids

Direct Synthesis of 3‐Aryl Substituted Isocoumarins and Phthalides through Palladium Acetate Catalyzed C(sp²)−H Activation in Ionic Liquids

Cadmium‐Doped and Pincer Ligand‐Modified Gold Nanocluster for Catalytic KA²Reaction

Cadmium‐Doped and Pincer Ligand‐Modified Gold Nanocluster for Catalytic KA²Reaction

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Aerobic Heterogeneous Palladium-Catalyzed Oxidative Allenic C−H Arylation: Benzoquinone as a Direct Redox Mediator between O 2 and Pd

Cited by 6 publications

References 64 publications

Direct Synthesis of 3‐Aryl Substituted Isocoumarins and Phthalides through Palladium Acetate Catalyzed C(sp2)−H Activation in Ionic Liquids

Direct Synthesis of 3‐Aryl Substituted Isocoumarins and Phthalides through Palladium Acetate Catalyzed C(sp2)−H Activation in Ionic Liquids

Cadmium‐Doped and Pincer Ligand‐Modified Gold Nanocluster for Catalytic KA2Reaction

Cadmium‐Doped and Pincer Ligand‐Modified Gold Nanocluster for Catalytic KA2Reaction

Contact Info

Product

Resources

About

Aerobic Heterogeneous Palladium-Catalyzed Oxidative Allenic C−H Arylation: Benzoquinone as a Direct Redox Mediator between O ₂ and Pd

Direct Synthesis of 3‐Aryl Substituted Isocoumarins and Phthalides through Palladium Acetate Catalyzed C(sp²)−H Activation in Ionic Liquids

Direct Synthesis of 3‐Aryl Substituted Isocoumarins and Phthalides through Palladium Acetate Catalyzed C(sp²)−H Activation in Ionic Liquids

Cadmium‐Doped and Pincer Ligand‐Modified Gold Nanocluster for Catalytic KA²Reaction

Cadmium‐Doped and Pincer Ligand‐Modified Gold Nanocluster for Catalytic KA²Reaction