Microwave‐Assisted Cross‐Coupling for the Construction of Diaryl Sulfides

In the present work, Fe3O4@L‐Tyrosine‐Pd heterogeneous nanocatalyst was prepared by a simple and inexpensive procedure. The prepared nanocatalyst was characterized by Fourier transform infrared spectroscopy (FT‐IR), X‐ray Diffraction (XRD), energy‐dispersive X‐ray spectroscopy (EDS), inductively coupled plasma optical emission spectroscopy (ICP‐OES), scanning electron microscopy (SEM), Transmission electron microscopy)TEM(, X‐ray mapping, thermal gravimetric analysis (TGA), N2 adsorption and desorption (BET) and vibrating sample magnetometer (VSM) techniques. Besides, it was employed as an efficent catalyst for C‐C cross coupling and S‐arylation reactions under green conditions. The optimized conditions for these reactions are described. The heterogeneous catalyst can be easily separated by applying a simple magnet and can also be reused in several consecutive runs without appreciable change in its catalytic activity.

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L‐Tyrosine‐Pd complex supported on Fe₃O₄magnetic nanoparticles: A new catalyst for C–C coupling and Synthesis of sulfides

Xie

Liu

Wang³

et al. 2019

Applied Organom Chemis

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Copper‐Catalyzed CH Bond Direct Chalcogenation of Aromatic Compounds Leading to Diaryl Sulfides, Selenides, and Diselenides by Using Elemental Sulfur and Selenium as Chalcogen Sources Under Oxidative Conditions

Shibahara

Kanai

Yamaguchi

et al. 2013

Chemistry An Asian Journal

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The reactions of aromatic compounds and elemental chalcogens catalyzed by a copper salt with molecular oxygen as an oxidant were carried out. The reaction of 3-substituted imidazo[1,5-a]pyridines and elemental sulfur in the presence of CuTC (copper(I) thiophenecarboxylate) gave the corresponding bisimidazopyridyl sulfides in good to quantitative yields. The reaction proceeded even under aerobic oxidation conditions. The use of a polar solvent was crucial for the reaction, and DMSO (dimethyl sulfoxide) in particular stimulated the reaction. The reaction could be applied to common aromatic compounds, such as N-methyl indole and dialkyl anilines. The reaction of indole proceeded at the nucleophilic C3 position rather than at the acidic C2 position. In addition, the reaction of dialkyl anilines proceeded with an ortho, para orientation. The reactions of imidazopyridines and elemental selenium under similar conditions gave the corresponding bisimidazopyridyl diselenides along with bisimidazopyridyl monoselenides. The resulting diselenides were readily converted to the corresponding monoselenides with unreacted imidazopyridines under the same conditions. The reaction could be applied to the copolymerization of bifunctional bisimidazopyridines and elemental sulfur to give oligomeric copolymers in quantitative yield.

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Iodine‐Mediated Thioetherification of Alcohols with Disulfides or NaSH under Microwave Irradiation

Sun

et al. 2012

Chin. J. Chem.

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Microwave‐Assisted Cross‐Coupling for the Construction of Diaryl Sulfides

Cited by 16 publications

References 45 publications

L‐Tyrosine‐Pd complex supported on Fe₃O₄magnetic nanoparticles: A new catalyst for C–C coupling and Synthesis of sulfides

L‐Tyrosine‐Pd complex supported on Fe₃O₄magnetic nanoparticles: A new catalyst for C–C coupling and Synthesis of sulfides

Copper‐Catalyzed CH Bond Direct Chalcogenation of Aromatic Compounds Leading to Diaryl Sulfides, Selenides, and Diselenides by Using Elemental Sulfur and Selenium as Chalcogen Sources Under Oxidative Conditions

Iodine‐Mediated Thioetherification of Alcohols with Disulfides or NaSH under Microwave Irradiation

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Microwave‐Assisted Cross‐Coupling for the Construction of Diaryl Sulfides

Cited by 16 publications

References 45 publications

L‐Tyrosine‐Pd complex supported on Fe3O4magnetic nanoparticles: A new catalyst for C–C coupling and Synthesis of sulfides

L‐Tyrosine‐Pd complex supported on Fe3O4magnetic nanoparticles: A new catalyst for C–C coupling and Synthesis of sulfides

Copper‐Catalyzed CH Bond Direct Chalcogenation of Aromatic Compounds Leading to Diaryl Sulfides, Selenides, and Diselenides by Using Elemental Sulfur and Selenium as Chalcogen Sources Under Oxidative Conditions

Iodine‐Mediated Thioetherification of Alcohols with Disulfides or NaSH under Microwave Irradiation

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Product

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L‐Tyrosine‐Pd complex supported on Fe₃O₄magnetic nanoparticles: A new catalyst for C–C coupling and Synthesis of sulfides

L‐Tyrosine‐Pd complex supported on Fe₃O₄magnetic nanoparticles: A new catalyst for C–C coupling and Synthesis of sulfides