Palladium Complex Immobilized on Magnetic Nanoparticles Modified with 2-Aminopyridine Ligand: A Novel and Efficient Recoverable Nanocatalyst for C–S and C–Se Coupling Reactions

Recent Progress in Synthetic and Biological Application of Diorganyl Diselenides

“…Palladium complex immobilized on magnetic nanoparticles modified with 2aminopyridine ligand was also an effective catalytic system used to promote the coupling of diorganyl diselenides with aryl halides in the formation of diaryl selenides. [166] The reactivity of copper salts was harnessed as a catalyst for reactions involving diorganyl diselenides and aryl halides. For instance, in one application, the reaction of diaryl diselenides with 4,7-dibromobenzoyl selenadiazoles employing CuO nanoparticles as a catalyst resulted in the formation of bisarylselenyl-benzoselenadiazoles 115 through a double crosscoupling process (Scheme 108).…”

“…The authors studied the mechanism for the reaction and determined that the presence of zinc dust is fundamental to generating zinc selenolate, which undergoes the transmetallation reaction with palladium(II) species to give the products. Palladium complex immobilized on magnetic nanoparticles modified with 2‐aminopyridine ligand was also an effective catalytic system used to promote the coupling of diorganyl diselenides with aryl halides in the formation of diaryl selenides [166] …”

Ultrasound Probe‐assisted Telescopic One‐pot Synthesis of Spiro[indene‐2,2’‐naphthalene]‐4’‐carbonitrile Derivatives using Fe3O4@SCH2CO2H@Ni‐NH2as a Reusable Nanocatalyst

“…From a practical viewpoint, magnetic nanoparticles have considerably used in various fields such as magnetic resonance imaging (MRI), drug delivery, and organic reactions. [16][17][18][19][20][21][22] The considerable attention has been paid to the magnetit nanoparticles (Fe 3 O 4 ) since they possess remarkable properties, for instance, ease of construction and modification, high thermal stability, and high catalyst loading. [23] In spite of these considerable advantages, the bare Fe 3 O 4 is able to be readily oxidized, which decreased its magnetic features, hence, the surface of Fe 3 O 4 should be modified with functional groups such as hydroxide (À OH), silica (À SiO 2 ), and carboxylic acid (À COOH) groups to prevent them from oxidation.…”

“…Magnetic nanocatalysts have known as profitable strategy in the green chemistry domain. From a practical viewpoint, magnetic nanoparticles have considerably used in various fields such as magnetic resonance imaging (MRI), drug delivery, and organic reactions [16–22] . The considerable attention has been paid to the magnetit nanoparticles (Fe 3 O 4 ) since they possess remarkable properties, for instance, ease of construction and modification, high thermal stability, and high catalyst loading [23] .…”

Regioselective C–H chalcogenylation and halogenation of arenes and alkenes under metal-free conditions

“…14 A considerable number of methods to insert a phenylseleno group into (hetero)arenes or alkenes have been developed. [15][16][17][18][19] One of the most classic and common strategies is using various transition metals such as Pd, 20,21 Rh, [22][23][24][25] Cu, [26][27][28] Ni 29,30 etc. as catalysts (Scheme 1a).…”