Catalytic Properties of the Palladium(II) Coordination Polymer in the Reaction of C–C Coupling of Aromatic Halides and Boronic Acids
摘要
It has been shown that the coordination polymer [Pd(2-Pymo)2]n (where 2-Pymo– is anion of 2-hydroxypyrimidine) catalyzes C–C coupling of boronic acids and aryl halides. The process of C–C coupling begins after the induction period, duration of which depends on the structure of a boronic acid and the solvent composition. The catalytic activity of [Pd(2-Pymo)2]n can be associated with the in situ formation of ultra-small palladium nanoparticles formed upon the reduction of Pd2+ by a boronic acid, which results in the destruction of such a complex compound on the surface, whereby the nanoparticles formed move into the colloid solution.