Palladium immobilized on guanidine functionalized magnetic nanoparticles: a highly effective and recoverable catalyst for ultrasound aided Suzuki–Miyaura cross-coupling reactions

Abstract

We designed and prepared a novel palladium catalyst that can be magnetically recyclable by anchoring guanidine moiety on the surface of Fe3O4 nanoparticles, and named as Fe3O4@SiO2-TCT-Gua-Pd. It was established...

Furaldehyde-based magnetic supported palladium nanoparticles as an efficient heterogeneous catalyst for Mizoroki–Heck cross-coupling reaction

“…A modified co-precipitation technique was used to synthesize Fe 3 O 4 nanoparticles. 33 Briefly, in 100 mL of deionized water, (0.2 mmol) FeCl 3 ·6H 2 O and (0.1 mmol) FeCl 2 ·4H 2 O were dissolved, and the solution was then warmed to 70 °C. Under constant stirring, 5 mL of aqueous ammonia was added dropwise at the rate of 0.1 mL min −1 and the mixture was allowed to stir for 30 min and cooled further.…”