New heterobimetallic Cu(I)–Pd(II)-containing polymer complexes: Electrochemical synthesis and application in catalysis

Characterization of a Poly‐4‐Vinylpyridine‐Supported CuPd Bimetallic Catalyst for Sonogashira Coupling Reactions

“…The CuPd/PVPy system showed a high catalytic activity in the Sonogashira reaction of iodobenzene with phenylacetylene carried out with a molar ratio iodide/Pd=1000 at 95 °C in air atmosphere, resulting in 100 % conversion after 2.5 h (specific activity, SA=520 h −1 ) . The catalytic efficiency of CuPd/PVPy was higher than previously reported supported CuPd bimetallic systems, taking also into account the low doses employed. Moreover, thanks to the coordinative capability the PVPy support, the amounts of metals leached by the CuPd/PVPy system were very low (0.6 ppm of Pd and 3.0 ppm of Cu in the crude reaction product) with respect to the ones of an analogous system supported on carbon …”

“…Recently, the presence of Cu in CuPd NPs proved to significantly enhance the catalytic performances of Pd catalysts in carbon–carbon coupling reactions (e.g. Suzuki–Miyaura and Sonogashira reactions) allowing the development of new CuPd catalysts that require also a reduced amount of precious Pd metal …”

Development of new methods in modern selective organic synthesis: preparation of functionalized molecules with atomic precision

“…562,563 X.2.c. Heck reaction The typical Heck reaction is coupling of aryl halide and alkene in the presence of a base and catalytic amounts of Pd.…”

The use of sacrificial anodes for the electrochemical synthesis of metallic complexes

“…That is the case of the complex [Co(L3) 2 also presented [26]; in this case, two electrolytic processes take place. First of all, a solution of the proligand (a kind of polyamic acids, H n L4, with biquinolyl moieties, biQ) in Nmethylpyridine was electrolyzed in the presence of a Pd anode and a Pt wire as the cathode; the process was stopped after a specified amount of electricity (0.55 F per mol of biQ fragments of the starting polymer) was passed through the solution.…”