The reactions of trans-PtCl(COR)(PPh3)2 [R = Ph, C6H4NO2-p (I), C6H4Me-p, C6H4OMe-p (II), Me, Et (III), Pr, hexyl (IV), CH2CH2Ph, Me3C (V)] with SnCl2 and SnCl2 plus H2 are described. The reactions with SnCl2 alone afford a mixt. of trans-Pt(SnCl3)(COR)(PPh3)2 and trans-PtCl{C(OSnCl2)R}(PPh3)2, with the last having a tin-oxygen bond. For III, IV, and V, reactions with SnCl2 plus H2 give aldehydes and platinum(II) hydride complexes, whereas for I and II no aldehydes are obtained. The significance of these results in relation to H2 activation in the hydroformylation reaction is discussed. 31P, 119Sn, 195Pt and, in a few cases, 13C NMR data are presented.
Platinum(II) trichlorostannate chemistry. Importance of the platinum-tin linkage in hydroformylation chemistry and anovel PtC(OSnCl2)R carbene
TONIOLO, Luigi;
1986-01-01
Abstract
The reactions of trans-PtCl(COR)(PPh3)2 [R = Ph, C6H4NO2-p (I), C6H4Me-p, C6H4OMe-p (II), Me, Et (III), Pr, hexyl (IV), CH2CH2Ph, Me3C (V)] with SnCl2 and SnCl2 plus H2 are described. The reactions with SnCl2 alone afford a mixt. of trans-Pt(SnCl3)(COR)(PPh3)2 and trans-PtCl{C(OSnCl2)R}(PPh3)2, with the last having a tin-oxygen bond. For III, IV, and V, reactions with SnCl2 plus H2 give aldehydes and platinum(II) hydride complexes, whereas for I and II no aldehydes are obtained. The significance of these results in relation to H2 activation in the hydroformylation reaction is discussed. 31P, 119Sn, 195Pt and, in a few cases, 13C NMR data are presented.I documenti in ARCA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.