Functionalization of fullerene (C60) with metformine to immobilized palladium as a novel heterogeneous and reusable nanocatalyst in the Suzuki–Miyaura coupling reaction at room temperature

Palladium Supported on Metformin‐Functionalized Magnetic Polymer Nanocomposites: A Highly Efficient and Reusable Catalyst for the Suzuki–Miyaura Coupling Reaction

“…In Figure c, the absorption band at 1679 cm −1 corresponds to the C=N stretching vibration of metformin. The intensity of the band at 1655–1630 cm −1 (‐CONH‐) increases significantly in the spectrum of Fe 3 O 4 @PMAA, suggesting the metformin has reacted with Fe 3 O 4 @PMAA nanoparticles successfully . All these characteristic absorption bands confirm the successful preparation of Fe 3 O 4 @PMAA‐Met.…”

Sulfamic acid heterogenized on functionalized magnetic Fe3O4 nanoparticles with diaminoglyoxime as a green, efficient and reusable catalyst for one‐pot synthesis of substituted pyrroles in aqueous phase

“…Even with this reduction in the saturation magnetization, the catalyst can still be efficiently and easily separated from solution using an external magnetic force. In continuation of our interest in environmentally benign chemical processes, [37][38][39][40] after characterization of the prepared nanocatalyst, we investigated the use of Fe 3 O 4 /DAG-SO 3 H as an active and stable To investigate the effect of catalyst concentration, systematic studies were carried out in the presence of various amounts of the catalyst (0, 5, 10, 20 and 50 mg) in H 2 O-EtOH, affording 2,5-dimethyl-Nbenzylpyrrole in 10, 50, 75, 98 and 96% isolated yields, respectively (Table 2). Thus, the best yield is obtained in the presence of just 20 mg of Fe 3 O 4 /DAG-SO 3 H ( Table 2, entry 4).…”

N -Doped porous carbon supported palladium nanoparticles as a highly efficient and recyclable catalyst for the Suzuki coupling reaction

“…Recently, as a new 13 generation of heterogeneous catalysts for the Suzuki coupling 14 reaction, immobilization of Pd nanoparticles on solid supports has 15 received considerable attention because of their superior catalytic 16 performance, good stability, ease of separation and satisfactory 17 reusability in comparison to the traditional homogeneous cata-18 lysts, such as Pd(OAc) 2 and PdCl 2 [2][3][4][5][6]. Generally, the solid 19 supports, especially carbon nanomaterials such as activated 20 carbon [7], carbon molecular sieve [8], fullerene [9], carbon 21 nanotube [10], nanofiber and graphene [11], have been used as the 22 support for heterogeneous palladium catalysts [12,13]. However, 23 noble metals (e.g., Pt, Pd, and Ru) deposited on these carbon 24 nanomaterials can easily leach during the catalytic processes 25 because the interaction between the metal nanoparticles and the 26 carbon support is weak, and also the chemical or catalytic 27…”

“…properties of the traditional carbon supports do not always satisfy 28 the sharply increasing demands of catalysis [9,14]. 29 Currently, nitrogen-doped porous carbon (N-doped PC), as a 30 kind of novel material, has attracted considerable attention.…”