Synthesis of platinum(II) alkyl and aryl complexes from K2[PtCl4] and tetraorganotin compounds in dimethyl sulphoxide
作者:Colin Eaborn、Kalipada Kundu、Alan Pidcock
DOI:10.1039/dt9810000933
日期:——
Complexes cis-[PtR2(dmso)2] and cis-[PtRCl(dmso)2](dmso = dimethyl sulphoxide) are readily obtained from K2[PtCl4] and SnMe3R (R = aryl or Me) in dmso at 70–90 °C. Hydrogen-1 n.m.r. spectra show that the dmso ligands are bound through sulphur in solution and that the dmso ligand trans to R in cis-[PtRCl(dmso)2] undergoes dissociation and exchange at ambient temperature. With anionic reagents X–(X =
Upon the addition of Br2 to complexes (P-P)Pt(Ar)2, two different products were observed, depending on the bite angle of the bidentate phosphine ligand: a Pt(II) aryl bromide complex, the product of C-Br reductiveelimination, and Pt(IV) oxidative addition complex. At high temperatures, the latter exclusively gave the product of the C-C reductiveelimination.