Stabilization of Pd, Pt and Ru nanoparticles by optically active CO/styrene copolymers

Unique syndio-selectivity in CO/styrene copolymerization reaction catalyzed by palladium complexes with 2-(2′-oxazolinyl)-1,10-phenanthrolines

“…8,9 Moreover, thanks to the presence of the carbonyl group, the post-functionalization of the polyketone macromolecules is possible with no degradation of the polymeric chain yielding new polymeric materials. [10][11][12][13][14][15][16][17][18] Palladium complexes with bidentate chelating ligands are the catalysts of choice for this process and a wide range of homobidentate P-donor and N-donor ligands, as well as of heterobidentate phosphine-nitrogen (P-N) [19][20][21][22] or phosphinephosphite (P-OP) [23][24][25][26] ligands have been utilized in the preparation of active metal catalysts. From the data available in the literature, P-donor derivatives are the catalysts of choice for the copolymerization of aliphatic α-olefins, whereas Pd complexes based on P-N or P-OP or N-N ligands turn out to be better suited to the copolymerization of vinyl arenes; a process where these catalysts enable the proper control of the reaction leading to good yields of copolymer.…”

A hybrid polyketone–SiO2 support for palladium catalysts and their applications in cinnamaldehyde hydrogenation and in 1-phenylethanol oxidation

“…On the contrary, the application of polymers as supports has been investigated to a lower extent, due to many disadvantages, such as decrease in thermal, mechanical and chemical stability, shrinking phenomena, changes of volume and porosity that can adversely influence their overall performances [5][6][7][8]. Recently, PKs, being high temperature melting materials, insoluble in the most common solvents, have been successfully proposed by us as support for palladium catalysts [9].…”