Józef J. Ziółkowski

TL;DR: In this article, a Pd-PVP colloid with a diameter of 19.8 nm was found in [Bu4N]Br medium catalyzes for the coupling of bromobenzene with butyl acrylate and methoxycarbonylation of iodobenzenes reactions.

TL;DR: In this paper, the extraordinary catalytic activity of palladium in C C bond forming processes is reviewed in respect to Heck and carbonylation reactions and examples of catalytic systems based on palladium complexes with phosphorus ligands and phosphine-free systems and based on the Pd(0) colloid are presented.

TL;DR: In this paper, a review comprises discussion concerning transformations of soluble and insoluble palladium catalysts during the Heck reaction, with special attention paid to two essential stages: reduction of PdII in precursor to Pd(0) and oxidative addition of the main substrate, aryl halide, to PD(0), in a form of monomolecular or nanosized Pd (0) colloid.

TL;DR: In this paper, the Suzuki coupling of 2-bromotoluene with phenylboronic acid, used as the test reaction, revealed that the obtained catalysts were quite efficient even at 40°C and that their catalytic activity increased at 60 and 80°C.

TL;DR: In this paper, the effects of electronic and steric parameters of P-ligands on the catalytic activity of rhodium catalysts are not always predictable, although there are many papers dealing with the comparative studies on structure-reactivity correlation, the results of structural studies will be used in the explanation of the observed catalytic activation in the model hydroformylation reaction of olefins (1-hexene, unsaturated alcohols) as well as related reactions, i.e. isomerization and hydrogenation.