Palladium immobilized on guanidine functionalized magnetic nanoparticles: a highly effective and recoverable catalyst for ultrasound aided Suzuki-Miyaura cross-coupling reactions
- Title
- Palladium immobilized on guanidine functionalized magnetic nanoparticles: a highly effective and recoverable catalyst for ultrasound aided Suzuki-Miyaura cross-coupling reactions
- Creator
- Hegde S.; Nizam A.; Vijayan A.; Dateer R.B.; Krishna S.B.N.
- Description
- We designed and prepared a palladium catalyst that can be magnetically recyclable by anchoring guanidine moiety on the surface of Fe3O4 nanoparticles, named Fe3O4@SiO2-TCT-Gua-Pd. It was established to be a potent catalyst for the Suzuki-Miyaura cross-coupling reaction (SMCR) in the EtOH/H2O system under ultrasonic conditions. FT-IR spectroscopy, field-emission scanning electron microscopy (FESEM), energy dispersive X-ray (EDX) microanalysis, vibration sample magnetometry (VSM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), thermogravimetric analysis (TGA), and inductively coupled plasma atomic emission spectrometry (ICP-AES) analyses were used to characterize the structure of the Fe3O4@SiO2-TCT-Gua-Pd nanoctalyst. The Fe3O4@SiO2-TCT-Gua-Pd catalyst produced favorable coupled products with excellent yields and was harmonious with various aryl halides and aryl boronic acids. The stability, low palladium leaching, and heterogeneous nature of the nanocatalyst were confirmed by a hot-filtration test. The palladium nanocatalyst could be easily recovered by magnetic field separation and recycled at least 6 times in a row without noticeable loss in its catalytic activity. 2023 The Royal Society of Chemistry.
- Source
- New Journal of Chemistry, Vol-47, No. 40, pp. 18856-18864.
- Date
- 2023-01-01
- Publisher
- Royal Society of Chemistry
- Coverage
- Hegde S., Department of Chemistry, CHRIST, Deemed to be University, Bangalore, 560029, India; Nizam A., Department of Chemistry, CHRIST, Deemed to be University, Bangalore, 560029, India; Vijayan A., Department of Chemistry, CHRIST, Deemed to be University, Bangalore, 560029, India; Dateer R.B., Centre for Nano and Material Sciences, Jain University, Karnataka, Bangalore, 562112, India; Krishna S.B.N., Institute for Water and Wastewater Technology, Durban University of Technology, PO Box 1334, Durban, 4000, South Africa, Department of Biomedical and Clinical Technology, Durban University of Technology, Durban, 4000, South Africa
- Rights
- Restricted Access
- Relation
- ISSN: 11440546; CODEN: NJCHE
- Format
- Online
- Language
- English
- Type
- Article
Collection
Citation
Hegde S.; Nizam A.; Vijayan A.; Dateer R.B.; Krishna S.B.N., “Palladium immobilized on guanidine functionalized magnetic nanoparticles: a highly effective and recoverable catalyst for ultrasound aided Suzuki-Miyaura cross-coupling reactions,” CHRIST (Deemed To Be University) Institutional Repository, accessed February 25, 2025, https://archives.christuniversity.in/items/show/14049.