Cu-ZSM5 as reusable catalyst for the one-pot, odorless and ligand-free C-S bond formation

Synthesis and characterization of highly efficient and recoverable Cu@MCM-41-(2-hydroxy-3-propoxypropyl) metformin mesoporous catalyst and its uses in Ullmann type reactions

“…Copper-catalyzed coupling reactions of aryl halides with nucleophiles, so-called Ullmann-type reactions 19 , are well-established methods for preparing pharmaceutically and materially important compounds. Many scientists have reported different conditions for these types of reactions in recent years using copper-based catalysts 20 . This reaction was also carried out in 2014 using thioamides as a source of sulfur 21 , 22 .…”

Magnetic mesocellular foams with nickel complexes: as efficient and reusable nanocatalysts for the synthesis of symmetrical and asymmetrical diaryl chalcogenides

“…To investigate the chemoselectivity of this method, the reaction of 1-bromo-4-chlorobenzene (as a dihalogenated aryl halide) was performed with triphenyltin chloride and Se; bromide showed a higher reaction (Table 5, entry 10). Although the exact mechanism for the C-Se bond formation via reaction of aryl halides with triphenyltin chloride and Se in the presence of MCF@Met-Ni nanocatalyst is not clear at this time, based on the previously reported mechanisms for C-S bond formation using aryl halide, triphenylene chloride and sulfur powder [68][69][70] and C-Se coupling reaction using aryl halides and Se powder 71,72 the proposed mechanism for the synthesis of phenyl aryl selenides in the presence of M-MCF@Met-Ni nanocatalyst is presented in Scheme 3. First, K 2 CO 3 reacts with elemental Se to produce potassium diselenide, which reacts with M-MCF@Met-Ni to The desired product may be obtained by reductive elimination of intermediate 5.…”

Metal-free photo-induced sulfidation of aryl iodide and other chalcogenation

“…( Boyd 2016 ; Lu et al, 2017 ; Zhang et al, 2018 ; Hou et al, 2022 ) Hence, the development of efficient methods for the construction of C-S bond has attracted considerable attentions from chemical researchers. Traditionally, transition metal-catalyzed cross coupling of aryl halides and thiol/thiophenol constitutes the mainstream route to aryl sulfides ( Figure 2A ) ( Fernández-Rodríguez et al, 2006 ; Alvaro and Hartwig, 2009 ; Timpa et al, 2014 ; Fu et al, 2015 ; Amiri et al, 2016a ; Guzmán-Percástegui et al, 2016 ; Shiri et al, 2016 ; Chen et al, 2019 ; Gupta 2022 ; Jones et al, 2018 ; Liu et al, 2019 ; Isshiki et al, 2021 ; Cheng-Yi Wang et al, 2021 ; Yu et al, 2021 ). However, several troublesome drawbacks still exist, including expensive catalysts and ligands, high temperature and narrow substrate scope.…”

“…( Ichiishi et al, 2018 ; Bie et al, 2021 ; Han Cao et al, 2021 ; Liu and Szostak, 2021 ) Reduction of sulfoxides also serves as a direct route to sulfides ( Shiri and Kazemi, 2017 ; Lin et al, 2021 ; Zhang 2022 ). The synthesis of aryl sulfides using phenylboronic acid as substrate requires the participation of magnetic nanoparticles or expensive transition metals ( Xu et al, 2012 ; Rostami et al, 2015a ; Rostami et al, 2015b ; Amiri et al, 2016a ; Amiri et al, 2016b ; Rostami et al, 2017 ; Wang et al, 2017 ; Cheng et al, 2018 ; Farzin et al, 2018 ; Atashkar et al, 2019 ; Gavhane et al, 2019 ; Khakyzadeh et al, 2019 ). With the development of photocatalytic reaction, photocatalytic synthesis of aryl sulfide has become an effective way.…”