552320-45-3Relevant academic research and scientific papers
Insertion reactions into Pd-O and Pd-N bonds: Preparation of alkoxycarbonyl, carbonato, carbamato, thiocarbamate, and thioureide complexes of palladium(II)
Ruiz, Jose,Martinez, M. Teresa,Florenciano, Felix,Rodriguez, Venancio,Lopez, Gregorio,Perez, Jose,Chaloner, Penny A.,Hitchcock, Peter B.
, p. 3650 - 3661 (2008/10/08)
Mononuclear palladium hydroxo complexes of the type [Pd(N-N)(C6F5)(OH)] [(N-N = 2,2′-bipyridine (bipy), 4,4′- dimethyl-2,2′-bipyridine (Me2bipy), 1,10-phenanthroline (phen), or N,N,N′,N′-tetramethylethylenediamine (tmeda)] have been prepared by reaction of [Pd(N-N)(C6F5)(acetone)]ClO4 with KOH in methanol. These hydroxo complexes react, in methanol, with CO (1 atm, room temperature) to yield the corresponding methoxycarbonyl complexes [Pd(N-N)(C6F5)(CO2Me)]. Similar alkoxycarbonyl complexes [Pd(N-N)(C6F5)(CO2R)] (N-N = bis(3,5-dimethylpyrazol-1-yl)methane); R = Me, Et, or iPr) are obtained when [Pd(N-N)(C6F5)Cl] is treated with KOH in the corresponding alcohol ROH and CO is bubbled through the solution. The reactions of [Pd(N-N)(C6F5)(OH)] (N-N = bipy or Me2bipy) with CO2, in tetrahydrofuran, lead to the formation of the binuclear carbonate complexes [(N-N)(C6F5)- Pd(μ-η2-CO3)Pd(C6F5) (N-N)]. Complexes [Pd(N-N)(C6F5)(OH)] react in alcohol with PhNCS to yield the corresponding N-phenyl-O-alkylthiocarbamate complexes [Pd(N-N)(C6F5){SC(OR)NPh}]. Similarly, the reaction of [Pd(bipy)(C6F5)-(OH)] with PhNCO in methanol gives the N-phenyl-O-methylcarbamate complex [Pd(bipy)(C6F5){NPhC(O)OR}]. The reactions of [(N-N)Pd(C6F5)(OH)] with PhNCS in the presence of Et2NH yield the corresponding thioureidometal complexes [Pd(N-N)(C6F5){NPhCSNR2}]. The crystal structures of [Pd(tmeda)(C6F5)(CO2Me)], [Pd2(Me2bipy)2(C6 F5)2- (μ-η2-CO3)]·2CH2 Cl2, and [Pd(tmeda)(C6F5){SC(OMe)NPh}] have been determined.
