Copper and palladium bimetallic sub-nanoparticles were stabilized on modified polyaniline materials as an efficient catalyst to promote C–C coupling reactions in aqueous solution

Abstract

The modified polyaniline self-stabilizing Cu/Pd bimetallic sub-nanocluster Composite materials (Cu/Pd@Mod-PANI-3OH) are obtained through three steps of oxidative polymerization, structural modification, and metal self-trapping. Palladium and copper are confined and coordinated...

Noble-Free Nanophotocatalyst of TixFeyLamOz for Efficient Photocatalytic C–N Cross-Coupling Reactions under Visible Light

“…Different catalysts have been developed for homocoupling reactions such as the Suzuki, Hack, and Chan–Lam reactions, which mediate reactions using light, without a metal. For example, the Suzuki carbon–carbon reaction uses palladium nanoparticles under high temperatures and long reaction times. Some cases even require the use of a ligand, further adding to the costs .…”

A palladium polyaniline complex: a simple and efficient catalyst for batch and flow Suzuki–Miyaura cross-couplings

“…The slight blemish was that the high concentration of H 2 O 2 (30 wt%) used in Pd@PANI synthesis is unstable and explosive in the process of production, storage, and transportation. 19,20 Although various Pd@PANI catalyzed reactions have achieved excellent performance, 21,22 a green and safe oxidant for the synthesis of low palladium loading catalysts remains in demand.…”

“…33,34 Gratifyingly, our method was effective for heteroaryl-heteroaryl cross-coupling with a 91% yield (Table 1, entry 21). In addition, this new Pd@PANI was an effective catalyst for Suzuki reactions not only for aromatic iodides but also for aromatic bromides that have a low reactivity compared with aromatic iodides by increasing the catalyst loading of Pd@PANI to 0.37 ppm (Table 1, entries [22][23][24][25][26][27][28][29]. In order to explore the applicability of this method in complex drug/natural product molecules, we performed the synthesis of D-fructose derivatives (Table 2).…”

Metal–Organic Framework Derived Cobalt Oxide Supported Bimetallic Pd/Cu Nanoparticles for Efficient Catalysis of the Sonogashira Reaction under Aerobic Conditions

“…7,8 There has been a recent focus on switching from homogeneous to heterogeneous catalysts in the Sonogashira reaction to realize this as a green and sustainable organic transformation. [9][10][11][12] Various methods have been developed to immobilize active metal sites on a wide variety of organic [13][14][15] or inorganic supports, [16][17][18][19][20][21][22] making it easy and simple to separate the catalyst from the reaction mixture. Copperfree heterogeneous palladium systems for this transformation have also been investigated.…”

“…Copperfree heterogeneous palladium systems for this transformation have also been investigated. [13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28] Despite the many recent advances in heterogeneous Sonogashira reactions, high loadings of catalysts are required, and there are few examples involving low loadings of catalyst. Therefore, the development of effective heterogeneous catalysts that are active at low loadings in the Sonogashira reactions is highly desirable for realizing green sustainable organic transformations.…”