Synthesis and characterization of Ni(II) complex functionalized silica-based magnetic nanocatalyst and its application in C-N and C-C cross-coupling reactions
| Autor: | Hassan Sheibani, Soheila Behzadi, Neda Seyedi, Mohaddeseh Shahabi Nejad |
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| Rok vydání: | 2018 |
| Předmět: |
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Molecular Nitrogen Aryl halide Magnetic separation Molecular Conformation Halide chemistry.chemical_element Chemistry Techniques Synthetic 010402 general chemistry 01 natural sciences Coupling reaction Catalysis Inorganic Chemistry chemistry.chemical_compound Coordination Complexes Nickel Drug Discovery Physical and Theoretical Chemistry Phenylboronic acid Magnetite Nanoparticles Molecular Biology chemistry.chemical_classification Phenol 010405 organic chemistry Aryl Organic Chemistry General Medicine Silanes Silicon Dioxide Combinatorial chemistry Carbon 0104 chemical sciences chemistry Information Systems |
| Zdroj: | Molecular diversity. 23(3) |
| ISSN: | 1573-501X |
| Popis: | A new magnetically recoverable silica-based nickel(II) nanocatalyst was synthesized by a simple cost-effective procedure, which was characterized by TEM, SEM, XRD, VSM analysis, and FT-IR spectrophotometry. The catalytic activity of the prepared Ni(II) nanocatalyst was tested in two complementary reactions: C–N Chan–Lam cross-coupling of phenylboronic acid with aryl amines and C–C Suzuki–Miyaura cross-coupling reaction of phenylboronic acid with aryl halides. The catalyst was easily recovered by magnetic separation and reused for five times. It demonstrated better catalytic activity in the C–N Chan–Lam reaction compared to C–C Suzuki–Miyaura reaction. Ease of recovery and reusability up to five cycles without noticeable loss of performance in the C–N cross-coupling reaction make the present protocol beneficial both industrially and environmentally. In this paper, a new magnetically recoverable silica-based nickel(II) nanocatalyst was synthesized and applied in two complementary reactions: C–C Suzuki–Miyaura reaction and C–N Chan–Lam reaction. The difference in catalytic activity makes it possible to use this catalyst for cases that are prone to both reactions and selectively create the desired product. |
| Databáze: | OpenAIRE |
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