Recyclable and reusable nano-CuFe2O4 catalyzed C-O cross-coupling

Venkanna, Avudoddi; Palle, Vinod Kumar Goud; Pallapothula, Venkateshwar Rao

doi:10.5155/eurjchem.3.3.298-304.540

Cited by 21 publications

(10 citation statements)

References 56 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, unsubstituted bromobenzene resulted in a poor yield of the desired product and iodobenzene failed to participate in this reaction. 35 The comparison of the catalytic activity of 36 Very recently it is found that the use of cheaper and more readily available K 2 CO 3 as a base instead of Cs 2 CO 3 in this protocol produced similar yields of products. 37 2.5.…”

Section: Cui Nanoparticlesmentioning

confidence: 95%

Diaryl ethers synthesis: nano-catalysts in carbon-oxygen cross-coupling reactions

et al. 2018

View full text Add to dashboard Cite

The diaryl ether moiety is not only prevalent in a significant number of natural products and synthetic pharmaceuticals but also widely found in many pesticides, polymers, and ligands. Ullmann-type crosscoupling reactions between phenols and aryl halides are regarded as one of the most important methods for the synthesis of this important and versatile structural motif. In recent years, the use of nano-sized metal catalysts in this coupling reaction has attracted a lot of attention because of these catalysts with their high surface-to-volume ratio, high surface energy, and reactive morphology allows for rapid C-O bond formation under mild and ligand-free conditions. In this review we will highlight the power of these catalysts in Ullmann-type C-O cross-coupling reactions.

show abstract

Section: Cui Nanoparticlesmentioning

confidence: 95%

Diaryl ethers synthesis: nano-catalysts in carbon-oxygen cross-coupling reactions

et al. 2018

View full text Add to dashboard Cite

show abstract

“…If the catalyst is washed with distilled water and EtOAc, it can be reused six times with little decrease in its activity. Similarly, in 2012 Pallapothula and co‐workers reported the successful CuFe 2 O 4 ‐catalyzed CO cross‐coupling of phenols with aryl halides under ligand‐free conditions by using KOH as the base in DMSO at 120 °C 175. The CuFe 2 O 4 nanoparticles show better activity than other metal oxide nanoparticles such as Sb 2 O 3 , Y 2 O 3 , YFe 2 O 4 , Bi 2 O 3 , Co 3 O 4 , and SnO 2 in the CO cross‐coupling of aryl halides with phenol under identical reaction conditions.…”

Section: Cx Bond‐forming Reactionsmentioning

confidence: 98%

Recent Applications of Magnetically Recoverable Nanocatalysts in CC and CX Coupling Reactions

2015

View full text Add to dashboard Cite

Magnetic nanoparticles have emerged recently as an alternative for the easy separation of nanosized catalysts from reaction mixtures by employing an external magnetic field. These magnetic nanoparticles have been used as supports for catalysts and/or as part of an active catalytic site. Herein, special attention is given to identify the main synthetic steps required to develop both precious‐ and nonprecious‐metal‐catalyzed CC and CX coupling reactions by using magnetically separable catalysts.

show abstract

“…A ligand-free procedure for the coupling of oxygen nucleophiles with a wide range of aryl halides/alkyl halides (Scheme 13) has been developed by Pallapothulaet al [84] Here,reusable nano-CuFe 2 O 4 (6 mol%) catalyst was employed with the base KOHat120 °Cfor 20 h. Aryl halides withelectron-withdrawing groups at para-position displayed better reactivity compared to those with electron-donating groups. This catalytic system can be applied for aryl bromides also but with reduced efficiency than aryl iodides.…”

Section: Synthesis Of Diaryl Ethersmentioning

confidence: 99%

Synthesis and Reactivity of Copper and Copper Containing Magnetically Separable Catalysts

Kundu

Mondal

Das³

et al. 2022

ChemistrySelect

View full text Add to dashboard Cite

This review endeavours to summarize the emergence of magnetically separable catalysts as a new class of catalyst for the modern developments in the synthesis and reactivity of the nano‐sized magnetically separable copper and copper containing nanomaterials exploited as potent applicant in the field of material science not only for their widespread technological applications but also to realize the fundamentals of nano‐magnetism. This review covers extensively different catalytic reactivity for carbon‐carbon and carbon‐heteroatom bond formation reactions and emphasized on recent developments in the field.

show abstract

Recyclable and reusable nano-CuFe2O4 catalyzed C-O cross-coupling

Cited by 21 publications

References 56 publications

Diaryl ethers synthesis: nano-catalysts in carbon-oxygen cross-coupling reactions

Diaryl ethers synthesis: nano-catalysts in carbon-oxygen cross-coupling reactions

Recent Applications of Magnetically Recoverable Nanocatalysts in CC and CX Coupling Reactions

Synthesis and Reactivity of Copper and Copper Containing Magnetically Separable Catalysts

Contact Info

Product

Resources

About