Magnetic dendritic polymer nanocomposites as supports for palladium: a highly efficient and reusable catalyst for Mizoroki–Heck and Suzuki–Miyaura coupling reactions. (1st March 2018)

• Record Type: Journal Article
• Authors: Ma, Rong; Yang, Pengbo; Bian, Fengling
• Is Part Of: New journal of chemistry. Volume 42:Number 6(2018)
• Page Start: 4748
• Page End: 4756
• Publication Date: 2018-03-01
• Subjects: Chemistry -- Periodicals; Chimie -- Périodiques; 540
• DOI: 10.1039/c7nj05014c
• Languages: English
• ISSNs: 1144-0546

Abstract

Abstract : A novel catalyst Fe3 O4 @SiO2 -Dendrimer-Pd based on palladium immobilized on magnetic dendritic polymer nanocomposites was successfully synthesized and characterized by FT-IR, EA, XRD, TEM, EDX, VSM and XPS. Abstract : A novel catalyst Fe3 O4 @SiO2 -Dendrimer-Pd based on palladium immobilized on magnetic dendritic polymer nanocomposites was successfully synthesized and characterized by FT-IR, EA, XRD, TEM, EDX, VSM and XPS. This nanocatalyst showed excellent catalytic activity for solvent-free Mizoroki–Heck reaction and Suzuki–Miyaura reaction in EtOH/H2 O at a palladium loading of only 0.009 mol%. Moreover, the Fe3 O4 @SiO2 -Dendrimer-Pd catalyst could be conveniently recovered by an external magnet and used consecutively five times with excellent yields. The remarkable catalytic performances and convenient magnetic separability of the Fe3 O4 @SiO2 -Dendrimer-Pd catalyst make it promising for practical application.