Cis-[PtCl2(PPh3)2] and [PtCl2(P-P)] (P-P = Ph2P(CH2)1, 2 or 4 PPh2) are synthesized by treating H2[PtCl6]•H2O with an excess of phosphine in EtOH; by the same procedure, except for the presence of aqueous formaldehyde, trans-[PtCl2(PPh3)2] can be prepared. By pressuring H2[PtCl6]• 6H2O and an excess of PPh3 with carbon monoxide and molecular hydrogen in EtOH trans-[PtHCl(PPh3)2] is obtained; in the presence of propene, even without molecular hydrogen, trans-[PtCl(COPr-n)(PPh3)2] forms. All the above complexes are prepared in good yield.
Convenient one-step synthesis of substituted phosphine complexes of Platinum(II) directly from hexachloroplatinic acid
CAVINATO, GIANNI;
1981
Abstract
Cis-[PtCl2(PPh3)2] and [PtCl2(P-P)] (P-P = Ph2P(CH2)1, 2 or 4 PPh2) are synthesized by treating H2[PtCl6]•H2O with an excess of phosphine in EtOH; by the same procedure, except for the presence of aqueous formaldehyde, trans-[PtCl2(PPh3)2] can be prepared. By pressuring H2[PtCl6]• 6H2O and an excess of PPh3 with carbon monoxide and molecular hydrogen in EtOH trans-[PtHCl(PPh3)2] is obtained; in the presence of propene, even without molecular hydrogen, trans-[PtCl(COPr-n)(PPh3)2] forms. All the above complexes are prepared in good yield.File in questo prodotto:
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