Design and synthesis of a new phosphinite-functionalized clay composite for the stabilization of palladium nanoparticles. Application as a recoverable catalyst for C–C bond formation reactions

Abstract

Pd-catalyzed C–C bond formation in green media, combining the advantages of homogeneous IL phase, phosphorylated ligands and a new heterogeneous clay support.

Solubility of Phenylboronic Acid and its Cyclic Esters in Organic Solvents

“…Even for unsubstituted phenylboronic acid, only two values of its solubility in water are reported: "The solubility (g/100 g. of water) is approximately 1.1 at 0° and 2.5 at 25°; the solubility-temperature relationship is linear to at least 45°" [9]. One can also find some generalized and misleading statements in the literature such as "boronic acids are water soluble" [10] or "since the reactants are insoluble in water, this reaction is an > on water < reaction" [11]. Only recently, solubilities of several simple arylboronic acid and benzoxaboroles in water were published [12].…”

A fluorescence active catalyst support comprising carbon quantum dots and magnesium oxide doping for stabilization of palladium nanoparticles: Application as a recoverable catalyst for Suzuki reaction in water

“…Rao and coworkers prepared water dispersible sheets of Mg-phyllo(organo)silicates containing pendant amino ligands and used it for stabilization of Au, Ag, Pd, and Pt nanoparticles [28]. Also, very recently we reported clay composite carrying phosphinite-functionalized ionic liquid moieties (CCPIL) for palladium nanoparticles stabilization and their applications in different coupling reactions [29].…”

Assembly immobilized palladium(0) on carboxymethylcellulose/Fe3O4 hybrid: An efficient tailor‐made magnetically catalyst for the Suzuki–Miyaura couplings

“…The UV–Vis spectrum of Pd 0 @CMC/Fe 3 O 4 hybrid was also studied. According to the literature results, the UV–Vis spectrum of PdCl 2 revealing a peak at 280 nm refers to the existence of Pd(II) (Figure a) . However, there was not any obvious peak at 280 nm in the UV–Vis spectrum of Pd 0 @CMC/Fe 3 O 4 hybrid, which indicated a major reduction of Pd(II) to Pd nanoparticles in the catalyst.…”